{"id":15762,"date":"2026-08-20T18:29:43","date_gmt":"2026-08-20T10:29:43","guid":{"rendered":"https:\/\/www.drillpipes.com\/%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-%d0%bf%d0%be%d1%81%d1%82%d0%b0%d0%b2%d1%89%d0%b8%d0%ba\/"},"modified":"2026-09-18T16:05:54","modified_gmt":"2026-09-18T08:05:54","slug":"%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-%d0%bf%d0%be%d1%81%d1%82%d0%b0%d0%b2%d1%89%d0%b8%d0%ba","status":"publish","type":"post","link":"https:\/\/www.drillpipes.com\/ru\/%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-%d0%bf%d0%be%d1%81%d1%82%d0%b0%d0%b2%d1%89%d0%b8%d0%ba\/","title":{"rendered":"\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Drill pipe supplier<\/strong> selection starts with one practical question: can the supplier keep the approved pipe specification, connection configuration, inspection records, marking, and delivered joints consistent from quotation through shipment? A line item such as S135 drill pipe may identify the basic product family, but it does not define the complete joint that will arrive at the rig.<\/p>\n\n<p class=\"wp-block-paragraph\">For a \u0431\u0443\u0440\u0435\u043d\u0438\u0435 contractor or OCTG buyer, the finished configuration matters. \u0442\u0440\u0443\u0431\u0430-body \u0440\u0430\u0437\u043c\u0435\u0440s, nominal \u0432\u0435\u0441, upset, tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 geometry, rotary-shouldered \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435, weld-zone condition, \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f scope, and traceability all affect whether new \u0442\u0440\u0443\u0431\u0430 can be introduced into an existing \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u043a\u043e\u043b\u043e\u043d\u043d\u0430 without creating avoidable co\u041c\u041f\u0430tibility or acceptaNCe problems. API \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f 5DP itself treats \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 as a steel \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 body with upset ends and weld-on \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s, rather than as \u0442\u0440\u0443\u0431\u0430 body alone.<\/p>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/drill-pipe-manufacturing-workshop-1024x576.jpg\" alt=\"\" class=\"wp-image-14466\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/drill-pipe-manufacturing-workshop-1024x576.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/drill-pipe-manufacturing-workshop-300x169.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/drill-pipe-manufacturing-workshop.jpg 1672w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\">What Buyers Are Actually Approving<\/h2>\n\n<p class=\"wp-block-paragraph\">The first \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a review should happen before \u0446\u0435\u043d\u0430 co\u041c\u041f\u0430rISOn. The buyer needs to know exactly what technical configuration the quotation represents.<\/p>\n\n<p class=\"wp-block-paragraph\">A finished <a href=\"__PROTECTED_0__\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-secondary-color\">\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430<\/mark><\/a> order normally brings several product elements together. IF the purchase description identIFies only \u0442\u0440\u0443\u0431\u0430 OD and \u043a\u043b\u0430\u0441\u0441, important details may remain unresolved until production or, worse, receiving \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Supply Control Point<\/th><th>What Should Be Confirmed Before Approval<\/th><\/tr><\/thead><tbody><tr><td>\u0442\u0440\u0443\u0431\u0430 body<\/td><td>OD, nominal \u0432\u0435\u0441 or \u0442\u043e\u043b\u0449\u0438\u043d\u0430 \u0441\u0442\u0435\u043d\u043a\u0438, \u043a\u043b\u0430\u0441\u0441 and required \u0434\u043b\u0438\u043d\u0430 range<\/td><\/tr><tr><td>Upset<\/td><td>IU, EU, IEU or the \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFied \u0442\u0440\u0443\u0431\u0430-end configuration<\/td><\/tr><tr><td>\u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435<\/td><td>OD, ID, finished geometry and required external features<\/td><\/tr><tr><td>\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435<\/td><td>Exact rotary-shouldered \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 designation or approved proprietary \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435<\/td><\/tr><tr><td>Weld zone<\/td><td>Manufacturing source and applicable \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f \/ acceptaNCe records<\/td><\/tr><tr><td>Surface options<\/td><td>Hardbanding, internal coating or other project-\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFied treatment<\/td><\/tr><tr><td>\u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f scope<\/td><td>\u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442 requirements plus any PO, ITP or operator-\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFic \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f<\/td><\/tr><tr><td>Marking<\/td><td>Product identity linked to the supplied documentation<\/td><\/tr><tr><td>Shipment documents<\/td><td>\u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b records, \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f release and packing records corresponding to the delivered \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">This is where a capable \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a adds value. The job is not simply to find \u0442\u0440\u0443\u0431\u0430 with the requested \u043a\u043b\u0430\u0441\u0441 stamped on it. The \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a has to stop mismatched \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fs from progressing through procurement.<\/p>\n\n<p class=\"wp-block-paragraph\">A buyer reviewing <strong>API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fs<\/strong> should therefore work from the complete finished-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 description rather than nominal \u0442\u0440\u0443\u0431\u0430 \u0440\u0430\u0437\u043c\u0435\u0440 alone. Our <a href=\"__PROTECTED_0__\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-secondary-color\">API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fs<\/mark><\/a> cover the body \u0440\u0430\u0437\u043c\u0435\u0440s, \u043a\u043b\u0430\u0441\u0441s, upset configurations and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 options that need to be considered together.<\/p>\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/finished-drill-pipe-joint-structure-cutaway-1024x576.jpg\" alt=\"\" class=\"wp-image-14462\" style=\"width:994px;height:auto\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/finished-drill-pipe-joint-structure-cutaway-1024x576.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/finished-drill-pipe-joint-structure-cutaway-300x169.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/finished-drill-pipe-joint-structure-cutaway.jpg 1672w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\">VerIFy the API Scope Behind the Quotation<\/h2>\n\n<p class=\"wp-block-paragraph\">The phrase API 5DP should lead to a more \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFic discussion, not end it.<\/p>\n\n<p class=\"wp-block-paragraph\">API describes \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f 5DP as the technical \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0430 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f for steel \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 with upset \u0442\u0440\u0443\u0431\u0430-body ends and weld-on \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s. API&#8217;s licensing documents also distinguish between separate product scopes instead of treating every activity under one generic \u0431\u0443\u0440-\u0442\u0440\u0443\u0431\u0430 label.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>API 5DP Item<\/th><th>Current Published Information<\/th><\/tr><\/thead><tbody><tr><td>Main \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f<\/td><td>API \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f 5DP<\/td><\/tr><tr><td>Current edition listed by API<\/td><td>2nd Edition<\/td><\/tr><tr><td>Edition publication<\/td><td>May 2020<\/td><\/tr><tr><td>Addendum<\/td><td>Addendum 1, January 2025<\/td><\/tr><tr><td>Addendum 1 API \u043c\u043e\u043d\u043e\u0433\u0440\u0430\u043c\u043c\u0430 effective date<\/td><td>July 2, 2025<\/td><\/tr><tr><td>Latest errata currently listed by API<\/td><td>Errata 3, March 2025<\/td><\/tr><tr><td>Monogram product scopes<\/td><td>\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 Body; \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s; \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 (Assembly)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">For purchasing and \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f, the applicable edition, addendum and licensed product scope should be identIFied before order approval. \u201cAPI 5DP\u201d alone does not establish whether the quoted manufacturing scope covers the \u0442\u0440\u0443\u0431\u0430 body, \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 or finished \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 assembly.<\/p>\n\n<p class=\"wp-block-paragraph\">This distiNCtion is particularly important when evaluating an <strong>API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a<\/strong>. The buyer should verIFy what the relevant \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c&#8217;s licensed scope actually covers and which organization is responsible for the finished assembly being supplied.<\/p>\n\n<p class=\"wp-block-paragraph\">An API claim on a quotation does not answer questions such as who produced the \u0442\u0440\u0443\u0431\u0430 body, where the \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s came from, or who released the assembled \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435. Those details belong in the technical and traceability review.<\/p>\n\n<h2 class=\"wp-block-heading\">Follow the Production Chain, Not the Co\u041c\u041f\u0430ny Label<\/h2>\n\n<p class=\"wp-block-paragraph\">The dIFfereNCe between a \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a and a <strong>\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c<\/strong> is often discussed too simplistically.<\/p>\n\n<p class=\"wp-block-paragraph\">Buying directly from a \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c can shorten part of the supply chain, but ownership of manufacturing equipment is not the only issue that matters to the project. A \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a may coordinate production from qualIFied sources, maintain stock, manage third-party \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f, or assemble a project-\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFic \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0430 from approved \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044cs.<\/p>\n\n<p class=\"wp-block-paragraph\">The buyer still needs a clear answer to the same questions:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Who \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u043ed the \u0442\u0440\u0443\u0431\u0430 body?<\/li>\n\n\n\n<li>Who supplied or \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u043ed the \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435?<\/li>\n\n\n\n<li>Who completed and released the finished assembly?<\/li>\n\n\n\n<li>Which \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f records belong to that \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b?<\/li>\n\n\n\n<li>Can the physical marking be recoNCiled with the documents delivered with the shipment?<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">A \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a that cannot answer these questions consistently creates a traceability problem even IF the product description on the commercial invoice looks correct.<\/p>\n\n<p class=\"wp-block-paragraph\">Conversely, a supply chain involving more than one organization is not automatically a problem IF the approved manufacturing source and document trail remain clear.<\/p>\n\n<p class=\"wp-block-paragraph\">For procurement purposes, the stronger test is therefore not simply \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a or \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c? It is whether the technical responsibility remains visible from the approved \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f to the \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 received at the yard.<\/p>\n\n<h2 class=\"wp-block-heading\">Why a Short \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 Description Can Be INComplete<\/h2>\n\n<p class=\"wp-block-paragraph\">Nominal \u0442\u0440\u0443\u0431\u0430 OD, \u0432\u0435\u0441, \u043a\u043b\u0430\u0441\u0441 and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 designation are important purchasing identIFiers, but they still may not fully define the finished \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435. Tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 OD and ID can change the actual \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 geometry and the published operating limits even when the \u0442\u0440\u0443\u0431\u0430 body itself remains uNChanged.<\/p>\n\n<p class=\"wp-block-paragraph\">A useful example appears in NOV Grant Prideco&#8217;s published HDD \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 configurations. The two \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s below use the same \u0442\u0440\u0443\u0431\u0430-body OD, nominal \u0432\u0435\u0441, \u0442\u043e\u043b\u0449\u0438\u043d\u0430 \u0441\u0442\u0435\u043d\u043a\u0438, S135 \u043a\u043b\u0430\u0441\u0441 and NC50 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435. The tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 OD is also identical. The main \u0440\u0430\u0437\u043c\u0435\u0440al dIFfereNCe is the tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 ID.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Published Configuration<\/th><th>Configuration A<\/th><th>Configuration B<\/th><\/tr><\/thead><tbody><tr><td>\u0442\u0440\u0443\u0431\u0430 OD<\/td><td>5 in.<\/td><td>5 in.<\/td><\/tr><tr><td>Nominal \u0432\u0435\u0441<\/td><td>19.5 lb\/ft<\/td><td>19.5 lb\/ft<\/td><\/tr><tr><td>\u0442\u043e\u043b\u0449\u0438\u043d\u0430 \u0441\u0442\u0435\u043d\u043a\u0438<\/td><td>0.362 in.<\/td><td>0.362 in.<\/td><\/tr><tr><td>\u043a\u043b\u0430\u0441\u0441<\/td><td>S135<\/td><td>S135<\/td><\/tr><tr><td>\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435<\/td><td>NC50<\/td><td>NC50<\/td><\/tr><tr><td>Tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 OD<\/td><td>6-5\/8 in.<\/td><td>6-5\/8 in.<\/td><\/tr><tr><td>Tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 ID<\/td><td>2-3\/4 in.<\/td><td>3-1\/4 in.<\/td><\/tr><tr><td>Published maximum MUT<\/td><td>38,000 ft-lb<\/td><td>30,700 ft-lb<\/td><\/tr><tr><td>Published maximum pullback<\/td><td>560,800 lb<\/td><td>560,800 lb<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">The dIFfereNCe is not minor. INCreasing the published tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 ID from <strong>2-3\/4 in. to 3-1\/4 in.<\/strong> iNCreases the bore by <strong>0.500 in.<\/strong>, while the published maximum make-up \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 decreases from <strong>38,000 ft-lb to 30,700 ft-lb<\/strong>. That is a dIFfereNCe of <strong>7,300 ft-lb<\/strong>, or about <strong>19%<\/strong> relative to the 38,000 ft-lb configuration. The published maximum pullback remains uNChanged at 560,800 lb.<\/p>\n\n<p class=\"wp-block-paragraph\">This co\u041c\u041f\u0430rISOn does <strong>not<\/strong> mean that 38,000 ft-lb or 30,700 ft-lb is a universal API NC50 make-up \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442. These are \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c-published values for the \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFic Grant Prideco HDD configurations shown above. Their value in a \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a review is to demonstrate that the \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 name alone does not describe every performaNCe-relevant feature of the finished \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435.<\/p>\n\n<p class=\"wp-block-paragraph\">For an \u043d\u0435\u0444\u0442\u044cfield \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 purchase, the same procurement priNCiple applies: body OD, nominal \u0432\u0435\u0441 and \u043a\u043b\u0430\u0441\u0441 should be reviewed together with the exact \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435, tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 OD and ID, upset configuration and any \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c-\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFic make-up requirements. A description such as <strong>5 in. S135 NC50 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430<\/strong> may therefore require further definition before the order is technically complete.<\/p>\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/5-inch-s135-nc50-tool-joint-id-cutaway-1024x576.jpg\" alt=\"\" class=\"wp-image-14463\" style=\"width:939px;height:auto\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/5-inch-s135-nc50-tool-joint-id-cutaway-1024x576.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/5-inch-s135-nc50-tool-joint-id-cutaway-300x169.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/5-inch-s135-nc50-tool-joint-id-cutaway.jpg 1672w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\">\u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f EvideNCe Should Match the Product Being Shipped<\/h2>\n\n<p class=\"wp-block-paragraph\">\u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f records are useful only when the measured result can be co\u041c\u041f\u0430red with a defined acceptaNCe requirement. Statements such as chemical composition checked, \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c tested, or i\u041c\u041f\u0430ct tested do not tell a buyer whether the \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b actually passed.<\/p>\n\n<p class=\"wp-block-paragraph\">For \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 supplied to API 5DP, the review should therefore go beyond a list of \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f items. The \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442 or \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f report should identIFy the relevant \u043a\u043b\u0430\u0441\u0441, heat or lot, test condition, measured value, and applicable acceptaNCe limit. The same priNCiple applies to \u0442\u0440\u0443\u0431\u0430 body \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b, \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s and the friction-weld zone.<\/p>\n\n<h3 class=\"wp-block-heading\">Chemical Composition<\/h3>\n\n<p class=\"wp-block-paragraph\">\u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442s should be reviewed against the limits that apply to the ordered \u043a\u043b\u0430\u0441\u0441 rather than checked only for the \u043a\u043b\u0430\u0441\u0441 designation. API 5DP Addendum 1 establishes \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFic phosphorus and sulfur limits for \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 bodies and \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Product Element<\/th><th>Maximum P<\/th><th>Maximum S<\/th><\/tr><\/thead><tbody><tr><td>\u043a\u043b\u0430\u0441\u0441 E \u0442\u0440\u0443\u0431\u0430 body<\/td><td>0.030%<\/td><td>0.020%<\/td><\/tr><tr><td>\u043a\u043b\u0430\u0441\u0441s X, G, S and V \u0442\u0440\u0443\u0431\u0430 body<\/td><td>0.020%<\/td><td>0.015%<\/td><\/tr><tr><td>\u043a\u043b\u0430\u0441\u0441s E, X, G, S and V \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s<\/td><td>0.020%<\/td><td>0.015%<\/td><\/tr><tr><td>SS75 \u0442\u0440\u0443\u0431\u0430 body<\/td><td>0.015%<\/td><td>0.010%<\/td><\/tr><tr><td>SS95 \/ SS105 \u0442\u0440\u0443\u0431\u0430 body<\/td><td>0.015%<\/td><td>0.010%<\/td><\/tr><tr><td>SS75 \/ SS95 \/ SS105 \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s<\/td><td>0.015%<\/td><td>0.010%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">For an S135 order, for example, the \u043a\u043b\u0430\u0441\u0441 S \u0442\u0440\u0443\u0431\u0430 body falls within the X\/G\/S\/V group. The reported heat chemistry should therefore show phosphorus at or below <strong>0.020%<\/strong> and sulfur at or below <strong>0.015%<\/strong>. A \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442 showing either element above these limits would require technical review rather than acceptaNCe based only on the S135 designation.<\/p>\n\n<p class=\"wp-block-paragraph\">The SS \u043a\u043b\u0430\u0441\u0441s have additional alloy and microstructure requirements, so they should not be treated as ordinary S-\u043a\u043b\u0430\u0441\u0441 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 with lower phosphorus and sulfur values.<\/p>\n\n<h3 class=\"wp-block-heading\">Weld-Zone \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c<\/h3>\n\n<p class=\"wp-block-paragraph\">The friction-weld zone between the upset \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 body and the \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 has explicit \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c limits. API 5DP distinguishes the requirements by \u043a\u043b\u0430\u0441\u0441 rather than applying one \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c value to every \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Weld-Zone Requirement<\/th><th>Maximum \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c<\/th><\/tr><\/thead><tbody><tr><td>\u043a\u043b\u0430\u0441\u0441s E, X, G and S \u2014 surface \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c<\/td><td>37 HRC<\/td><\/tr><tr><td>\u043a\u043b\u0430\u0441\u0441s E, X, G and S \u2014 mean through-wall \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c<\/td><td>37 HRC<\/td><\/tr><tr><td>\u043a\u043b\u0430\u0441\u0441 V \u2014 surface \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c<\/td><td>40 HRC<\/td><\/tr><tr><td>\u043a\u043b\u0430\u0441\u0441 V \u2014 mean through-wall \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c<\/td><td>40 HRC<\/td><\/tr><tr><td>SS \u043a\u043b\u0430\u0441\u0441s \u2014 surface \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c<\/td><td>32 HRC<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">For an S135 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435, this gives the buyer a direct acceptaNCe refereNCe. A recorded weld-zone surface \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c of <strong>35 HRC<\/strong> is below the applicable <strong>37 HRC maximum<\/strong>, whereas a result of <strong>39 HRC<\/strong> exceeds that limit.<\/p>\n\n<p class=\"wp-block-paragraph\">These values illustrate how the acceptaNCe criterion is applied; they are not production results from a particular \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c.<\/p>\n\n<p class=\"wp-block-paragraph\">When a \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c result exceeds the \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFied limit, the affected area requires further evaluation and retesting according to the applicable API 5DP procedure. Continued noNConformaNCe can lead to rejection unless an allowable re-heat-treatment and retest route is successfully completed.<\/p>\n\n<p class=\"wp-block-paragraph\">This is considerably more meaningful in a \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a review than a \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442 carrying only the statement weld \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c tested.<\/p>\n\n<h3 class=\"wp-block-heading\">Tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c<\/h3>\n\n<p class=\"wp-block-paragraph\">Tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c should also be checked against an acceptaNCe range rather than treated as a general indication of strength.<\/p>\n\n<p class=\"wp-block-paragraph\">For non-SS \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u043c\u0430\u0442\u043a\u0430es, API 5DP \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFies the following \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c requirement:<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 Item<\/th><th>API 5DP Requirement<\/th><\/tr><\/thead><tbody><tr><td>Non-SS \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u043c\u0430\u0442\u043a\u0430 \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c<\/td><td>285\u2013341 HBW<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">A measured result should therefore fall within <strong>285\u2013341 HBW<\/strong> for the applicable non-SS \u043c\u0430\u0442\u043a\u0430 \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435.<\/p>\n\n<p class=\"wp-block-paragraph\">A value above the upper limit should not be interpreted simply as a harder or stronger \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435. The measured value has to remain within the \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFied \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b condition.<\/p>\n\n<p class=\"wp-block-paragraph\">Heat-control \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c testing should also remain linked to the applicable heat of steel so that the buyer can determine which production \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b the result represents.<\/p>\n\n<h3 class=\"wp-block-heading\">Charpy I\u041c\u041f\u0430ct Requirements<\/h3>\n\n<p class=\"wp-block-paragraph\">I\u041c\u041f\u0430ct testing provides another measurable point for \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a qualIFication, particularly for higher-strength \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430.<\/p>\n\n<p class=\"wp-block-paragraph\">For PSL-1 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 bodies in \u043a\u043b\u0430\u0441\u0441s X, G, S and V, longitudinal Charpy V-notch testing is conducted at <strong>21 \u00b0C \u00b1 3 \u00b0C<\/strong>. The required absorbed energy depends on \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fimen \u0440\u0430\u0437\u043c\u0435\u0440.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>CVN \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fimen \u0440\u0430\u0437\u043c\u0435\u0440<\/th><th>Minimum Average Absorbed Energy<\/th><th>Minimum Individual \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fimen Energy<\/th><\/tr><\/thead><tbody><tr><td>10 \u00d7 10 mm<\/td><td>54 J<\/td><td>47 J<\/td><\/tr><tr><td>10 \u00d7 7.5 mm<\/td><td>43 J<\/td><td>38 J<\/td><\/tr><tr><td>10 \u00d7 5 mm<\/td><td>30 J<\/td><td>26 J<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">For a full-\u0440\u0430\u0437\u043c\u0435\u0440 <strong>10 \u00d7 10 mm<\/strong> \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fimen, a report showing only \u201ci\u041c\u041f\u0430ct test passed\u201d leaves out information needed for verIFication. The buyer should be able to see that the test was performed at the applicable temperature and that the reported set satisfies both the <strong>54 J minimum average<\/strong> and the <strong>47 J minimum individual \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fimen<\/strong> requirement.<\/p>\n\n<p class=\"wp-block-paragraph\">Reduced-\u0440\u0430\u0437\u043c\u0435\u0440 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fimens have lower numerical energy requirements, which is why \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fimen \u0440\u0430\u0437\u043c\u0435\u0440 must remain visible on the test report. A 30 J result cannot be evaluated correctly without knowing whether the \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fimen was 10 \u00d7 10 mm, 10 \u00d7 7.5 mm or 10 \u00d7 5 mm.<\/p>\n\n<h3 class=\"wp-block-heading\">Test FrequeNCy<\/h3>\n\n<p class=\"wp-block-paragraph\">A compliant test result also has to represent the correct production lot. One satis\u0437\u0430\u0432\u043e\u0434 tensile or Charpy \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442 should not automatically be assumed to cover an unlimited quantity of \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430.<\/p>\n\n<p class=\"wp-block-paragraph\">API 5DP changes the PSL-1 test frequeNCy according to \u043a\u043b\u0430\u0441\u0441 group and nominal \u0442\u0440\u0443\u0431\u0430 \u0440\u0430\u0437\u043c\u0435\u0440.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>PSL-1 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 Body<\/th><th>Chemical Analysis<\/th><th>Tensile Test<\/th><th>Charpy I\u041c\u041f\u0430ct Test<\/th><\/tr><\/thead><tbody><tr><td>\u043a\u043b\u0430\u0441\u0441 E, below 6-5\/8 in.<\/td><td>2 product analyses per heat<\/td><td>1 per 400 or per lot*<\/td><td>\u2014<\/td><\/tr><tr><td>\u043a\u043b\u0430\u0441\u0441 E, 6-5\/8 in. and above<\/td><td>2 product analyses per heat<\/td><td>1 per 200 or per lot*<\/td><td>\u2014<\/td><\/tr><tr><td>\u043a\u043b\u0430\u0441\u0441s X\/G\/S\/V, below 6-5\/8 in.<\/td><td>2 product analyses per heat<\/td><td>1 per 200 or per lot*<\/td><td>1 per 200 or per lot*<\/td><\/tr><tr><td>\u043a\u043b\u0430\u0441\u0441s X\/G\/S\/V, 6-5\/8 in. and above<\/td><td>2 product analyses per heat<\/td><td>1 per 100 or per lot*<\/td><td>1 per 100 or per lot*<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\"> Where the requirement is expressed by quantity or lot, the smaller applicable quantity governs.<\/p>\n\n<p class=\"wp-block-paragraph\">This has a direct procurement implication. A <strong>5 in. S135 PSL-1 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 body<\/strong> falls into the X\/G\/S\/V group below 6-5\/8 in. For that category, the tensile and Charpy test frequeNCy is <strong>1 per 200 products or per lot, whichever represents the smaller applicable quantity<\/strong>.<\/p>\n\n<p class=\"wp-block-paragraph\">IF a \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a provides one tensile report for a shipment, the buyer should therefore also check the heat and lot identIFication before deciding how much \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b that report actually represents.<\/p>\n\n<p class=\"wp-block-paragraph\">For X\/G\/S\/V \u0442\u0440\u0443\u0431\u0430 at <strong>6-5\/8 in. and above<\/strong>, the frequeNCy becomes <strong>1 per 100 products or per lot<\/strong> for both tensile and Charpy testing. This is why tested according to API 5DP is not enough information for a detailed \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f review.<\/p>\n\n<h3 class=\"wp-block-heading\">\u0440\u0430\u0437\u043c\u0435\u0440al VerIFication<\/h3>\n\n<p class=\"wp-block-paragraph\">\u0440\u0430\u0437\u043c\u0435\u0440al \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f also needs a defined method and coverage.<\/p>\n\n<p class=\"wp-block-paragraph\">The \u0442\u043e\u043b\u0449\u0438\u043d\u0430 \u0441\u0442\u0435\u043d\u043a\u0438 of each \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 body should be verIFied through the applicable documented \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f procedure. \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f coverage needs to extend along the \u0442\u0440\u0443\u0431\u0430 body, while areas not adequately covered by automated equipment, iNCluding relevant transition areas near the upset, require an appropriate supplementary verIFication method.<\/p>\n\n<p class=\"wp-block-paragraph\">The measurement system itself also needs controlled accuracy.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u0440\u0430\u0437\u043c\u0435\u0440al VerIFication Item<\/th><th>Requirement<\/th><\/tr><\/thead><tbody><tr><td>\u0442\u0440\u0443\u0431\u0430 bodies requiring wall-\u0442\u043e\u043b\u0449\u0438\u043d\u0430 verIFication<\/td><td>Each \u0442\u0440\u0443\u0431\u0430 body<\/td><\/tr><tr><td>\u0434\u043b\u0438\u043d\u0430 measuring-device accuracy<\/td><td>\u00b10.03 m<\/td><\/tr><tr><td>Equivalent imperial accuracy<\/td><td>\u00b10.1 ft<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">The important point for a <strong>\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a<\/strong> is not simply that \u0440\u0430\u0437\u043c\u0435\u0440s appear on a final \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442. The \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f record should come from a controlled measurement process capable of demonstrating that the supplied \u0442\u0440\u0443\u0431\u0430 meets the applicable \u0440\u0430\u0437\u043c\u0435\u0440al requirement.<\/p>\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/api-5dp-drill-pipe-inspection-acceptance-reference-1.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"\u0412\u0441\u0442\u0430\u0432\u043a\u0430 api-5dp-drill-pipe-inspection-acceptance-reference \"><\/object><a id=\"wp-block-file--media-c661da83-1e40-4f37-b8c2-917f8fd5f165\" href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/api-5dp-drill-pipe-inspection-acceptance-reference-1.pdf\">API-5DP-\u0431\u0443\u0440-\u0442\u0440\u0443\u0431\u0430-\u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f-acceptaNCe-refereNCe <\/a><a href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/api-5dp-drill-pipe-inspection-acceptance-reference-1.pdf\" class=\"wp-block-file__button wp-element-button\" download=\"\" aria-describedby=\"wp-block-file--media-c661da83-1e40-4f37-b8c2-917f8fd5f165\">Download<\/a><\/div>\n\n<h3 class=\"wp-block-heading\">What the Buyer Should See in the \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f Package<\/h3>\n\n<p class=\"wp-block-paragraph\">The acceptaNCe values above should remain connected to the production records for the actual shipment.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f Area<\/th><th>What the Buyer Should Be Able to VerIFy<\/th><\/tr><\/thead><tbody><tr><td>Chemical composition<\/td><td>Heat analysis and applicable P \/ S limits<\/td><\/tr><tr><td>Tensile properties<\/td><td>Actual results, heat\/lot identity and test frequeNCy<\/td><\/tr><tr><td>Charpy i\u041c\u041f\u0430ct<\/td><td>\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fimen \u0440\u0430\u0437\u043c\u0435\u0440, test temperature, individual values and average value<\/td><\/tr><tr><td>Tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c<\/td><td>Actual \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c result against the applicable range<\/td><\/tr><tr><td>Weld-zone \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c<\/td><td>Measured surface \/ through-wall results against the \u043a\u043b\u0430\u0441\u0441 limit<\/td><\/tr><tr><td>\u0440\u0430\u0437\u043c\u0435\u0440s<\/td><td>Applicable measured \u0440\u0430\u0437\u043c\u0435\u0440s and controlled \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f method<\/td><\/tr><tr><td>Test coverage<\/td><td>Quantity represented by each test according to heat \/ lot<\/td><\/tr><tr><td>Product release<\/td><td>\u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f records corresponding to the \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s being shipped<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">A technically useful \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f package therefore answers three questions at the same time: <strong>what was tested, what numerical requirement applied, and which physical \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s the result represents<\/strong>.<\/p>\n\n<p class=\"wp-block-paragraph\">That is the level of evideNCe a buyer should expect when qualIFying a \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 supply, rather than relying on general statements such as 100% \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u043e controlled or strictly in\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fted.<\/p>\n\n<h2 class=\"wp-block-heading\">Traceability Should Reach the Physical \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435<\/h2>\n\n<p class=\"wp-block-paragraph\">Traceability works only when the document trail survives all the way to receiving \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f.<\/p>\n\n<p class=\"wp-block-paragraph\">A useful supply chain keeps the relationship between the purchase \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f, manufacturing identity, \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f release, physical marking and shipment records intact. When \u0442\u0440\u0443\u0431\u0430 is split between deliveries, repacked, in\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fted by a third party or supplied from dIFferent production lots, maintaining that relationship becomes more important, not less.<\/p>\n\n<p class=\"wp-block-paragraph\">For the buyer, a practical traceability chain looks like:<\/p>\n\n<p class=\"wp-block-paragraph\"><strong>Approved specification \u2192 material identity \u2192 pipe \/ tool-joint records \u2192 assembly inspection \u2192 product marking \u2192 release records \u2192 packing list<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">The exact document names can vary by \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c and project. The priNCiple should not.<\/p>\n\n<p class=\"wp-block-paragraph\">IF a receiving in\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044ftor finds a \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 in the bundle, the identIFication on that \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 should provide a defensible route back to the relevant product documentation. IF that link is missing, the existeNCe of a large document package does not necessarily provide usable traceability.<\/p>\n\n<p class=\"wp-block-paragraph\">This is one of the more important distiNCtions between a \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a that only moves inventory and one that manages technical \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0430.<\/p>\n\n<h2 class=\"wp-block-heading\">What \u0431\u0443\u0440\u0435\u043d\u0438\u0435 Contractors Need from a Supply Partner<\/h2>\n\n<p class=\"wp-block-paragraph\">A <strong>\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a for \u0431\u0443\u0440\u0435\u043d\u0438\u0435 contractors<\/strong> works in a dIFferent environment from a \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a filling a generic stock order. New \u0442\u0440\u0443\u0431\u0430 often has to enter an existing rig fleet, existing \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u043a\u043e\u043b\u043e\u043d\u043d\u0430 or established maintenaNCe system.<\/p>\n\n<p class=\"has-primary-color has-text-color has-link-color wp-elements-1 wp-block-paragraph\">For a replacement requirement, the \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a may need to check the existing \u0442\u0440\u0443\u0431\u0430 description before recommending an equivalent. \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 identity deserves particular attention. Rotary-shouldered \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s are not defined by OD alone. An<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-secondary-color\"> <\/mark><a href=\"__PROTECTED_0__\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-secondary-color\">API 7-2 \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u0440\u0435\u0437\u044c\u0431\u0430 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435<\/mark><\/strong> <\/a>has to be reviewed against the applicable \u0440\u0430\u0437\u043c\u0435\u0440al, \u043d\u0430\u0440\u0435\u0437\u0430\u043d\u0438\u0435 \u0440\u0435\u0437\u044c\u0431\u044b and gauging requirements as \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430 as the finished tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 configuration.<\/p>\n\n<p class=\"wp-block-paragraph\">The same applies when several rigs are being supplied. Two \u0431\u0443\u0440\u0435\u043d\u0438\u0435 programs may both request the same nominal body \u0440\u0430\u0437\u043c\u0435\u0440 but use dIFferent \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 arrangements, \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f requirements or handling configurations.<\/p>\n\n<p class=\"has-primary-color has-text-color has-link-color wp-elements-2 wp-block-paragraph\">Where \u043a\u043b\u0430\u0441\u0441 selection is still open, <strong><a href=\"__PROTECTED_0__\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-secondary-color\">API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043a\u043b\u0430\u0441\u0441s for deep and directional \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430s<\/mark><\/a><\/strong> should be reviewed against the planned \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430 depth, trajectory, axial load and \u043a\u0440\u0443\u0442\u044f\u0449\u0438\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 requirements before the final \u0442\u0440\u0443\u0431\u0430 configuration is approved.<\/p>\n\n<p class=\"wp-block-paragraph\">In practice, contractor-focused supply commonly has to deal with situations such as:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>replacing part of a working string without introducing an iNCo\u041c\u041f\u0430tible \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435;<\/li>\n\n\n\n<li>matching new \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s to existing subs, crossovers and BHA interfaces;<\/li>\n\n\n\n<li>separating dIFferent \u043a\u043b\u0430\u0441\u0441s or configurations across several rig inventories;<\/li>\n\n\n\n<li>maintaining \u0442\u0440\u0443\u0431\u0430 identIFication when deliveries are split between yards or \u0441\u043a\u0432\u0430\u0436\u0438\u043d\u0430 locations;<\/li>\n\n\n\n<li>aligning operator-\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFic \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f requirements with the \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442 product \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f;<\/li>\n\n\n\n<li>providing packing and document sets that let the receiving team identIFy the correct \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b without reopening the technical review.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">This is why availability alone is not enough. The \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a has to understand what the new \u0442\u0440\u0443\u0431\u0430 is expected to connect to and how it will be accepted on arrival.<\/p>\n\n<h2 class=\"wp-block-heading\">Co\u041c\u041f\u0430re Quotations Only After the Technical Boundary Is Equal<\/h2>\n\n<p class=\"wp-block-paragraph\">\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 quotations can appear easy to co\u041c\u041f\u0430re because they usually iNClude a recognizable combination of \u0440\u0430\u0437\u043c\u0435\u0440, \u043a\u043b\u0430\u0441\u0441, \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 and quantity.<\/p>\n\n<p class=\"wp-block-paragraph\">The dIFficult part is finding what has been left outside that short description.<\/p>\n\n<p class=\"wp-block-paragraph\">A lower unit \u0446\u0435\u043d\u0430 may reflect a dIFferent tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 configuration, a dIFferent \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f scope, no hardbanding, a dIFferent coating requirement, a dIFferent packing method or a reduced documentation package. Those dIFfereNCes are commercial only after they have first been treated as technical dIFfereNCes.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Quotation Item<\/th><th>Why It Changes the Co\u041c\u041f\u0430rISOn<\/th><\/tr><\/thead><tbody><tr><td>\u0442\u0440\u0443\u0431\u0430 body \u0432\u0435\u0441 \/ wall<\/td><td>Changes the supplied \u0442\u0440\u0443\u0431\u0430 configuration and mechanical section<\/td><\/tr><tr><td>\u043a\u043b\u0430\u0441\u0441<\/td><td>Changes \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b strength requirements<\/td><\/tr><tr><td>Upset<\/td><td>Changes \u0442\u0440\u0443\u0431\u0430-end geometry and finished-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 configuration<\/td><\/tr><tr><td>Tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 OD \/ ID<\/td><td>Affects \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 geometry, clearaNCe and hydraulic passage<\/td><\/tr><tr><td>\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435<\/td><td>Must match the approved \u0431\u0443\u0440-string interface<\/td><\/tr><tr><td>Hardbanding<\/td><td>Adds \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b, application and \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f scope<\/td><\/tr><tr><td>Internal coating<\/td><td>Adds application and service requirements<\/td><\/tr><tr><td>\u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f scope<\/td><td>May add project or operator-\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFic verIFication<\/td><\/tr><tr><td>Third-party \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f<\/td><td>Adds witness \/ release requirements<\/td><\/tr><tr><td>Documentation<\/td><td>Determines what evideNCe acco\u041c\u041f\u0430nies the shipment<\/td><\/tr><tr><td>Packing<\/td><td>Affects protection of \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s and shipment handling<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">The proper commercial co\u041c\u041f\u0430rISOn starts only after these boundaries have been normalized.<\/p>\n\n<p class=\"wp-block-paragraph\">That is e\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fially important when sourcing internationally. A quotation that looks cheaper at purchase stage can become expensive IF the receiving team has to stop the \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b for missing documentation, uNCertain \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 identity or \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f recoNCiliation.<\/p>\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/api-drill-pipe-tool-joint-production-1024x576.jpg\" alt=\"\" class=\"wp-image-14469\" style=\"width:924px;height:auto\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/api-drill-pipe-tool-joint-production-1024x576.jpg 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/api-drill-pipe-tool-joint-production-300x169.jpg 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/api-drill-pipe-tool-joint-production.jpg 1672w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\">Build \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a Approval Around EvideNCe<\/h2>\n\n<p class=\"wp-block-paragraph\">IF someone asks <strong>how to choose a \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a<\/strong>, the answer is not a list of marketing claims. The useful test is whether the \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a can answer technical questions before the PO is released and support those answers after production.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Buyer Question<\/th><th>EvideNCe Worth Reviewing<\/th><th>Warning Sign<\/th><\/tr><\/thead><tbody><tr><td>What finished \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 is being supplied?<\/td><td>Body \u0440\u0430\u0437\u043c\u0435\u0440\/\u0432\u0435\u0441, \u043a\u043b\u0430\u0441\u0441, upset, tool-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 OD\/ID and exact \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435<\/td><td>OD and \u043a\u043b\u0430\u0441\u0441 only<\/td><\/tr><tr><td>What API scope applies?<\/td><td>Applicable \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f revision and identIFiable product scope<\/td><td>Generic \u201cAPI certIFied\u201d statement<\/td><\/tr><tr><td>Does the chemistry comply?<\/td><td>Heat analysis checked against \u043a\u043b\u0430\u0441\u0441 limits; for S135, P \u2264 0.020% and S \u2264 0.015%<\/td><td>\u043a\u043b\u0430\u0441\u0441 listed without heat chemistry<\/td><\/tr><tr><td>Is weld-zone \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c acceptable?<\/td><td>Actual result co\u041c\u041f\u0430red with the 37 HRC maximum for E\/X\/G\/S<\/td><td>\u201c\u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c tested\u201d with no result<\/td><\/tr><tr><td>Does the \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 meet \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c requirements?<\/td><td>\u043c\u0430\u0442\u043a\u0430 \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c within 285\u2013341 HBW for non-SS \u043a\u043b\u0430\u0441\u0441s<\/td><td>No measured value<\/td><\/tr><tr><td>Does i\u041c\u041f\u0430ct testing meet the requirement?<\/td><td>\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fimen \u0440\u0430\u0437\u043c\u0435\u0440, test temperature and absorbed energy recorded<\/td><td>\u201cI\u041c\u041f\u0430ct tested\u201d only<\/td><\/tr><tr><td>Does testing represent the lot?<\/td><td>Heat\/lot identity matched to required test frequeNCy<\/td><td>\u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442 not linked to production lot<\/td><\/tr><tr><td>How is traceability maintained?<\/td><td>Marking linked to MTC, \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f and packing records<\/td><td>Documents cannot be tied to physical \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s<\/td><\/tr><tr><td>Will the \u0442\u0440\u0443\u0431\u0430 match existing inventory?<\/td><td>Finished-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 and \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 configuration reviewed before PO<\/td><td>Co\u041c\u041f\u0430tibility left until \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0430<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">A useful \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a review therefore tests technical discipline as much as sales responsiveness.<\/p>\n\n<p class=\"wp-block-paragraph\">Fast quotations are helpful. So is stock. Neither compensates for an uNClear finished-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f.<\/p>\n\n<h2 class=\"wp-block-heading\">What Should Be Confirmed Before the Purchase Order?<\/h2>\n\n<p class=\"wp-block-paragraph\">A quotation request does not need to become a full \u0431\u0443\u0440\u0435\u043d\u0438\u0435 program, but it should remove the ambiguities that are expensive to solve after production.<\/p>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Purchase Input<\/th><th>What to Define<\/th><\/tr><\/thead><tbody><tr><td>\u0442\u0440\u0443\u0431\u0430 body \u0440\u0430\u0437\u043c\u0435\u0440<\/td><td>Required nominal OD<\/td><\/tr><tr><td>Body configuration<\/td><td>Nominal \u0432\u0435\u0441 or \u0442\u043e\u043b\u0449\u0438\u043d\u0430 \u0441\u0442\u0435\u043d\u043a\u0438 requirement<\/td><\/tr><tr><td>\u043a\u043b\u0430\u0441\u0441<\/td><td>Required API or project-\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFic \u043a\u043b\u0430\u0441\u0441<\/td><\/tr><tr><td>Product \/ \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f level<\/td><td>Applicable PSL and supplementary requirements<\/td><\/tr><tr><td>Upset<\/td><td>Required IU, EU, IEU or \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFied upset configuration<\/td><\/tr><tr><td>\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435<\/td><td>Exact rotary-shouldered \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 designation<\/td><\/tr><tr><td>\u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435<\/td><td>Required OD, ID and approved finished-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 configuration<\/td><\/tr><tr><td>\u0434\u043b\u0438\u043d\u0430<\/td><td>Required API \u0434\u043b\u0438\u043d\u0430 range or project-\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFic \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u0434\u043b\u0438\u043d\u0430<\/td><\/tr><tr><td>Service condition<\/td><td>Normal service, sour service or other \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFied operating environment<\/td><\/tr><tr><td>Surface condition<\/td><td>Hardbanding, internal coating or other \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFied surface treatment<\/td><\/tr><tr><td>\u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f<\/td><td>API 5DP requirements plus project, operator or ITP-\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044fIFic \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f scope<\/td><\/tr><tr><td>Third-party \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f<\/td><td>Required witness, hold or release points, IF applicable<\/td><\/tr><tr><td>Traceability<\/td><td>Required marking and linkage to \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b, \u0438\u043d\u0441\u043f\u0435\u043a\u0446\u0438\u044f and shipment records<\/td><\/tr><tr><td>Co\u041c\u041f\u0430tibility<\/td><td>Existing \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u043a\u043e\u043b\u043e\u043d\u043d\u0430, crossover, BHA or rig interface that must be matched<\/td><\/tr><tr><td>Quantity<\/td><td>Required number of \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435s, total \u0444\u0443\u0442age or other purchasing basis<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">The \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a should close unresolved technical points before manufacturing or shipment approval. Equivalent should not be assumed where \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 geometry or finished-\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 requirements are involved.<\/p>\n\n<p class=\"wp-block-paragraph\">That discipline separates a technical <strong>\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a<\/strong> from a source that merely quotes whatever description appears in the inquiry.<\/p>\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/drill-pipe-purchase-specification-supplier-qualification-reference-1.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"\u0412\u0441\u0442\u0430\u0432\u043a\u0430 drill-pipe-purchase-specification-supplier-qualification-reference\"><\/object><a id=\"wp-block-file--media-6f7e2d0a-6467-45c0-a1a5-99318c6722ec\" href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/drill-pipe-purchase-specification-supplier-qualification-reference-1.pdf\">\u0431\u0443\u0440-\u0442\u0440\u0443\u0431\u0430-purchase-\u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f-\u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a-qualIFication-refereNCe<\/a><a href=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/08\/drill-pipe-purchase-specification-supplier-qualification-reference-1.pdf\" class=\"wp-block-file__button wp-element-button\" download=\"\" aria-describedby=\"wp-block-file--media-6f7e2d0a-6467-45c0-a1a5-99318c6722ec\">Download<\/a><\/div>\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-d61d70aa wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.drillpipes.com\/ru\/%d0%ba%d0%be%d0%bd%d1%82%d0%b0%d0%ba%d1%82%d1%8b\/\">Free Quotation<\/a><\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Q: How do I verIFy a \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a?<\/summary>\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Verify the finished-joint specification, manufacturing source, applicable API scope, connection configuration, inspection evidence and traceability. The documents should be traceable to the physical drill pipe delivered, not supplied only as generic certificates.<\/p>\n<\/details>\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Q: What should an API 5DP \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a provide?<\/summary>\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> The supplier should clearly identify the pipe-body configuration, grade, upset, tool joint, connection and applicable inspection scope, then provide the material and inspection records required by the purchase order. API&#8217;s licensing system separately recognizes drill pipe body, tool joints and finished drill pipe assembly.<\/p>\n<\/details>\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Q: Is a \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a the same as a \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c?<\/summary>\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Not necessarily. The supplier may manufacture the product directly or coordinate supply from approved manufacturing sources. From the buyer&#8217;s perspective, the critical issue is whether the manufacturing source, inspection records and finished product remain fully traceable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/details>\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Q: What information should \u0431\u0443\u0440\u0435\u043d\u0438\u0435 contractors provide before ordering \u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430?<\/summary>\n<p class=\"wp-block-paragraph\"><strong>A:<\/strong> Provide the required body size, nominal weight or wall, grade, upset, connection, tool-joint configuration, length, inspection scope and any existing-string compatibility requirements. Those inputs allow the supplier to define the finished joint before the PO is released.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"410\" fetchpriority=\"low\" src=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/05\/OCTAL-Certifications-1024x410.png\" alt=\"\" class=\"wp-image-12635\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/05\/OCTAL-Certifications-1024x410.png 1024w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/05\/OCTAL-Certifications-300x120.png 300w, https:\/\/www.drillpipes.com\/wp-content\/uploads\/2026\/05\/OCTAL-Certifications-2000x800.png 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/details>\n","protected":false},"excerpt":{"rendered":"<p>Drill pipe supplier selection starts with one practical question: can the supplier keep the approved pipe specification, connection configuration, inspection records, marking, and delivered joints consistent from quotation through shipment? A line item such as S135 drill pipe may identify the basic product family, but it does not define the complete joint that will arrive &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.drillpipes.com\/ru\/%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-%d0%bf%d0%be%d1%81%d1%82%d0%b0%d0%b2%d1%89%d0%b8%d0%ba\/\" class=\"more-link\">\u0427\u0438\u0442\u0430\u0442\u044c \u0434\u0430\u043b\u0435\u0435<span class=\"screen-reader-text\"> &#171;\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a&#187;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":15763,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[106],"tags":[],"class_list":["post-15762","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-106"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a Drillpipes \u0411\u043b\u043e\u0433 - Octal Drill Pipes<\/title>\n<meta name=\"description\" content=\"\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a selection requires verIFying API 5DP scope, \u0437\u0430\u043c\u043a\u043e\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u0440\u0430\u0437\u043c\u0435\u0440s, \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 data, \u0442\u0432\u0435\u0440\u0434\u043e\u0441\u0442\u044c limits, test frequeNCy and traceability.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.drillpipes.com\/ru\/%d0%b1%d1%83%d1%80%d0%b8%d0%bb%d1%8c%d0%bd%d0%b0%d1%8f-%d1%82%d1%80%d1%83%d0%b1%d0%b0-%d0%bf%d0%be%d1%81%d1%82%d0%b0%d0%b2%d1%89%d0%b8%d0%ba\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0431\u0443\u0440\u0438\u043b\u044c\u043d\u0430\u044f \u0442\u0440\u0443\u0431\u0430 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a Drillpipes \u0411\u043b\u043e\u0433 - Octal Drill Pipes\" 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