{"id":15596,"date":"2026-08-19T11:20:18","date_gmt":"2026-08-19T03:20:18","guid":{"rendered":"https:\/\/www.drillpipes.com\/how-to-handle-%d8%b9%d9%85%d9%84%d9%8a%d8%a7%d8%aa-%d8%a7%d9%84%d8%b1%d9%81%d8%b9-%d9%88%d8%a7%d9%84%d9%86%d8%b2%d9%88%d9%84-under-real-%d8%a7%d9%84%d8%ad%d9%81%d8%b1-conditions\/"},"modified":"2026-09-18T15:57:57","modified_gmt":"2026-09-18T07:57:57","slug":"how-to-handle-%d8%b9%d9%85%d9%84%d9%8a%d8%a7%d8%aa-%d8%a7%d9%84%d8%b1%d9%81%d8%b9-%d9%88%d8%a7%d9%84%d9%86%d8%b2%d9%88%d9%84-under-real-%d8%a7%d9%84%d8%ad%d9%81%d8%b1-conditions","status":"publish","type":"post","link":"https:\/\/www.drillpipes.com\/ar\/how-to-handle-%d8%b9%d9%85%d9%84%d9%8a%d8%a7%d8%aa-%d8%a7%d9%84%d8%b1%d9%81%d8%b9-%d9%88%d8%a7%d9%84%d9%86%d8%b2%d9%88%d9%84-under-real-%d8%a7%d9%84%d8%ad%d9%81%d8%b1-conditions\/","title":{"rendered":"How to Handle \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0631\u0641\u0639 \u0648\u0627\u0644\u0646\u0632\u0648\u0644 Under Real \u0627\u0644\u062d\u0641\u0631 Conditions"},"content":{"rendered":"\n

Tripping pipe<\/strong> moves the drill string repeatedly between the wellbore, rig floor, and setback area, exposing every drill pipe joint to lifting, gripping, connection breakout, racking, stabbing, and make-up.<\/strong> During tripping out<\/strong>, the string is pulled from the hole and stands are progressively disconnected and racked; when running back in, those stands return to the well center, are made up again, and are lowered into the well. OSHA describes the same operating sequence through slips, elevators, breakout, pipe racking, and repeated make-up as the string returns downhole.<\/p>\n\n

For the \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 itself, a trip involves much more than \u0631\u0623\u0633\u064a movement. The \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 body is repeatedly supported and released, the \u0627\u0644\u0648\u0635\u0644\u0629 is gripped during breakout and make-up, and the pin, box and shoulder pass through another \u0627\u0644\u0648\u0635\u0644\u0629 cycle before returning down\u0627\u0644\u0628\u0626\u0631. \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 handling<\/strong> therefore depends not only on the \u062d\u0641\u0627\u0631\u0629 \u0627\u0644\u062d\u0641\u0631 procedure, but also on \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 size, \u0627\u0644\u0648\u0635\u0644\u0629 \u0627\u0644\u0648\u0632\u0646, tool-\u0627\u0644\u0648\u0635\u0644\u0629 geometry and \u0627\u0644\u0648\u0635\u0644\u0629 condition throughout the trip.<\/p>\n\n

What Does \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0631\u0641\u0639 \u0648\u0627\u0644\u0646\u0632\u0648\u0644 Mean in \u0627\u0644\u062d\u0641\u0631?<\/h2>\n\n

A trip removes part or all of the \u0633\u0627\u0642 \u0627\u0644\u062d\u0641\u0631 from the \u0627\u0644\u0628\u0626\u0631 and, when required, returns it down\u0627\u0644\u0628\u0626\u0631. A complete pull-out followed by running the \u0627\u0644\u0633\u0627\u0642 back in is commonly called a round trip.<\/p>\n\n

The \u0627\u0644\u0633\u0627\u0642 may be pulled for a bit change, BHA work, inspection, logging, or another operation that requires access to the \u0633\u0627\u0642 \u0627\u0644\u062d\u0641\u0631 or bottom-\u0627\u0644\u0628\u0626\u0631 assembly.<\/p>\n\n

During \u0631\u0641\u0639 \u0627\u0644\u0633\u0627\u0642<\/strong>, each \u0627\u0644\u0634\u0639\u0644\u0629 reaches the \u0623\u0631\u0636\u064a\u0629 \u0627\u0644\u062d\u0641\u0627\u0631\u0629 in sequence. The suspended \u0627\u0644\u0633\u0627\u0642 is supported, the \u0627\u0644\u0648\u0635\u0644\u0629 is broken, and the \u0627\u0644\u0634\u0639\u0644\u0629 is moved into the racking area. When \u0646\u0632\u0648\u0644 \u0627\u0644\u0633\u0627\u0642, the process reverses: the \u0627\u0644\u0634\u0639\u0644\u0629 returns to \u0627\u0644\u0628\u0626\u0631 center, the \u0627\u0644\u0648\u0635\u0644\u0629 is stabbed and made up, and the \u0627\u0644\u0633\u0627\u0642 is lowered farther into the \u0627\u0644\u0628\u0626\u0631.<\/p>\n\n

This repeated cycle matters because different parts of the \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 are loaded and contacted in different ways. The \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 body may be held by slips, the \u0627\u0644\u0648\u0635\u0644\u0629 may be gripped during breakout, and the pin, box, and shoulder pass through another \u0627\u0644\u0648\u0635\u0644\u0629 cycle before the \u0627\u0644\u0633\u0627\u0642 returns down\u0627\u0644\u0628\u0626\u0631.<\/p>\n\n

What Happens to \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 During \u0631\u0641\u0639 \u0627\u0644\u0633\u0627\u0642 and \u0646\u0632\u0648\u0644 \u0627\u0644\u0633\u0627\u0642?<\/h2>\n\n

The \u062d\u0641\u0627\u0631\u0629 \u0627\u0644\u062d\u0641\u0631 design may vary, but the \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 passes through a similar sequence of lifting, supporting, breakout, racking and make-up during most \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 tripping operations<\/strong>.<\/p>\n\n

Tripping Stage<\/th>Main Action<\/th>\u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 Area Involved<\/th><\/tr><\/thead>
Raise the \u0627\u0644\u0633\u0627\u0642<\/td>\u0627\u0644\u0631\u0627\u0641\u0639\u0629s lift the \u0633\u0627\u0642 \u0627\u0644\u062d\u0641\u0631 or \u0627\u0644\u0634\u0639\u0644\u0629<\/td>\u0627\u0644\u0648\u0635\u0644\u0629 \/ \u0627\u0644\u0631\u0627\u0641\u0639\u0629 contact area<\/td><\/tr>
Set the \u0627\u0644\u0633\u0627\u0642<\/td>Slips support the suspended \u0627\u0644\u0633\u0627\u0642<\/td>\u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 body \/ slip contact area<\/td><\/tr>
Break the \u0627\u0644\u0648\u0635\u0644\u0629<\/td>Tongs or powered equipment apply breakout \u0639\u0632\u0645 \u0627\u0644\u062f\u0648\u0631\u0627\u0646<\/td>\u0627\u0644\u0648\u0635\u0644\u0629 OD, pin and box<\/td><\/tr>
Move and rack the \u0627\u0644\u0634\u0639\u0644\u0629<\/td>The disconnected \u0627\u0644\u0634\u0639\u0644\u0629 is transferred to the setback or fingerboard<\/td>\u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 body, \u0627\u0644\u0648\u0635\u0644\u0629s and \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 ends<\/td><\/tr>
Return the \u0627\u0644\u0634\u0639\u0644\u0629<\/td>The \u0627\u0644\u0634\u0639\u0644\u0629 is moved back to the \u0627\u0644\u0628\u0626\u0631 center<\/td>\u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 body and \u0627\u0644\u0648\u0635\u0644\u0629 ends<\/td><\/tr>
Stab and \u0627\u0644\u0631\u0628\u0637<\/td>The pin is aligned with the box and the \u0627\u0644\u0648\u0635\u0644\u0629 is tightened<\/td>\u0627\u0644\u062e\u064a\u0637s, shoulder faces and \u0627\u0644\u0648\u0635\u0644\u0629<\/td><\/tr>
Run in \u0627\u0644\u0628\u0626\u0631<\/td>The connected \u0633\u0627\u0642 \u0627\u0644\u062d\u0641\u0631 is lowered into the \u0627\u0644\u0628\u0626\u0631<\/td>Complete \u0633\u0627\u0642 \u0627\u0644\u062d\u0641\u0631<\/td><\/tr><\/tbody><\/table><\/figure>\n\n

OSHA\u2019s tripping guidance identifies \u0627\u0644\u0631\u0627\u0641\u0639\u0629s, slips and tongs as key equipment used to lift, support and connect the \u0633\u0627\u0642 \u0627\u0644\u062d\u0641\u0631 during a trip. Because each tool transfers load through a different part of the \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631, the resulting contact marks and damage patterns also appear in different locations.<\/p>\n\n

During \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 tripping operations<\/strong>, tong marks are more likely to appear on the \u0627\u0644\u0648\u0635\u0644\u0629, slip marks develop on the \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628-body contact area, while the pin, box and shoulder surfaces are repeatedly exposed during breakout and make-up. These indications should therefore be evaluated according to where they occur and how the load was applied, rather than being treated as the same type of handling damage.<\/p>\n\n

\"\"<\/figure>\n\n

Why \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 Size and \u0627\u0644\u0648\u0632\u0646 Matter During Tripping<\/h2>\n\n

Nominal \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 size<\/a><\/strong> does not fully describe what the \u062d\u0641\u0627\u0631\u0629 \u0627\u0644\u062d\u0641\u0631 is actually handling. \u0633\u0645\u0627\u0643\u0629 \u0627\u0644\u062c\u062f\u0627\u0631, \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0648\u0632\u0646 and internal dia\u0645\u062a\u0631 can change while the nominal \u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u062e\u0627\u0631\u062c\u064a remains the same, and the \u0627\u0644\u0648\u0635\u0644\u0629 introduces another set of dimensions.<\/p>\n\n

Published TMK \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 data provide a useful example for 5 in. \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631. Their dimensional table lists both 19.50 lb\/ft and 25.60 lb\/ft configurations at the same 5.000 in. nominal OD.<\/p>\n\n

5 in. \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 Data<\/th>19.50 lb\/ft Configuration<\/th>25.60 lb\/ft Configuration<\/th><\/tr><\/thead>
Nominal OD<\/td>5.000 in. \/ 127.0 mm<\/td>5.000 in. \/ 127.0 mm<\/td><\/tr>
Nominal \u0627\u0644\u0648\u0632\u0646<\/td>19.50 lb\/ft \/ 29.05 kg\/m<\/td>25.60 lb\/ft \/ 38.13 kg\/m<\/td><\/tr>
\u0633\u0645\u0627\u0643\u0629 \u0627\u0644\u062c\u062f\u0627\u0631<\/td>0.362 in. \/ 9.19 mm<\/td>0.500 in. \/ 12.70 mm<\/td><\/tr>
\u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628-body ID<\/td>4.276 in. \/ 108.62 mm<\/td>4.000 in. \/ 101.60 mm<\/td><\/tr>
Upset<\/td>IEU<\/td>IEU<\/td><\/tr><\/tbody><\/table><\/figure>\n\n

The published dimensions show why two \u0627\u0644\u0648\u0635\u0644\u0629s described simply as \u201c5-\u0628\u0648\u0635\u0629 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631\u201d should not automatically be treated as identical. The 25.60 lb\/ft configuration has a wall approximately\u00a038% thicker<\/strong>\u00a0than the 19.50 lb\/ft configuration\u20140.500 in. coMPared with 0.362 in.\u2014while its \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628-body ID is correspondingly smaller. The upset configuration is another part of the finished \u0627\u0644\u0648\u0635\u0644\u0629 that should be confirmed together with body size and tool-\u0627\u0644\u0648\u0635\u0644\u0629 dimensions. IEU, EU and IU \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 upset types<\/a><\/strong> change the \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628-end geometry before the \u0627\u0644\u0648\u0635\u0644\u0629 is welded.<\/p>\n\n

The difference is relevant to tripping for more than one reason. Increased nominal \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0648\u0632\u0646 changes the steel \u0627\u0644\u0648\u0632\u0646 being moved, while different body and tool-\u0627\u0644\u0648\u0635\u0644\u0629 geometry can affect the interfaces used by slips, \u0627\u0644\u0631\u0627\u0641\u0639\u0629s, and tongs.<\/p>\n\n

The same TMK product range lists E75, X95, G105, and S135 \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631<\/a> \u0627\u0644\u062f\u0631\u062c\u0629s and 4\u00bd\u20135\u00bd in. \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 with \u0633\u0645\u0627\u0643\u0629 \u0627\u0644\u062c\u062f\u0627\u0631es extending up to 0.500 in.<\/p>\n\n

\u0627\u0644\u062f\u0631\u062c\u0629, however, should not be confused with handling geometry. E75, X95, G105, and S135 describe different strength classes; those \u0627\u0644\u062f\u0631\u062c\u0629 names do not tell the \u062d\u0641\u0627\u0631\u0629 \u0627\u0644\u062d\u0641\u0631 crew the tool-\u0627\u0644\u0648\u0635\u0644\u0629 OD, tong area, \u0627\u0644\u0631\u0627\u0641\u0639\u0629 profile, or the exact finished dimensions of the \u0627\u0644\u0648\u0635\u0644\u0629.<\/p>\n\n

That is why \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 selection should consider the complete\u00a0API 5DP \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 sizes, \u0627\u0644\u062f\u0631\u062c\u0629s and \u0627\u0644\u0648\u0635\u0644\u0629s<\/strong>\u00a0rather than using nominal OD or \u0627\u0644\u062f\u0631\u062c\u0629 alone.<\/p>\n\n

\"\"<\/figure>\n\n

Where Handling Equipment Contacts the \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631<\/h2>\n\n

During \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 handling<\/strong>, different tools act on different parts of the \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628. That sounds obvious, but it matters when a \u0627\u0644\u0648\u0635\u0644\u0629 comes back from a trip with new marks or surface damage.<\/p>\n\n

\u0627\u0644\u0631\u0627\u0641\u0639\u0629s carry the \u0627\u0644\u0634\u0639\u0644\u0629 as it moves through the \u0623\u0631\u0636\u064a\u0629 \u0627\u0644\u062d\u0641\u0627\u0631\u0629, while slips hold the suspended \u0627\u0644\u0633\u0627\u0642 when a \u0627\u0644\u0648\u0635\u0644\u0629 is being worked. Tongs act farther out on the \u0627\u0644\u0648\u0635\u0644\u0629, where they provide the grip needed for breakout and make-up. Once the \u0627\u0644\u0648\u0635\u0644\u0629 is broken, the \u0627\u0644\u0634\u0639\u0644\u0629 is moved into the setback area, introducing another round of contact with racking and transfer equipment.<\/p>\n\n

The result is that handling marks tend to have a location as \u0627\u0644\u0628\u0626\u0631 as a cause. Slip marks normally appear on the \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628-body gripping area, while tong marks are associated with the \u0627\u0644\u0648\u0635\u0644\u0629. Damage around the pin, box or shoulder is more closely related to \u0627\u0644\u0648\u0635\u0644\u0629 handling, stabbing and repeated make-up or breakout.<\/p>\n\n

This is also why nominal \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 size is not enough when checking handling coMPatibility. The \u062d\u0641\u0627\u0631\u0629 \u0627\u0644\u062d\u0641\u0631 actually handles the finished \u0627\u0644\u0648\u0635\u0644\u0629, including the \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 body, upset and \u0627\u0644\u0648\u0635\u0644\u0629. Tool-\u0627\u0644\u0648\u0635\u0644\u0629 OD, available tong area and the profile used by the \u0627\u0644\u0631\u0627\u0641\u0639\u0629 can all matter even when two \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628s share the same nominal body OD.<\/p>\n\n

\"\"<\/figure>\n\n

Mechanical Loads and \u0628\u0626\u0631 \u0627\u0644\u0628\u0626\u0631 Effects During Tripping<\/h2>\n\n

A \u0633\u0627\u0642 \u0627\u0644\u062d\u0641\u0631 behaves differently on the way out of the \u0627\u0644\u0628\u0626\u0631 than it does simply hanging still.<\/p>\n\n

While \u0631\u0641\u0639 \u0627\u0644\u0633\u0627\u0642<\/strong>, the hoisting system has to lift the suspended \u0627\u0644\u0633\u0627\u0642 and overcome resistance where the \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 contacts the \u0628\u0626\u0631 \u0627\u0644\u0628\u0626\u0631. In a relatively straight \u0627\u0644\u0628\u0626\u0631 this may be modest. In a directional or long \u0623\u0641\u0642\u064a section, \u0627\u0644\u0633\u062d\u0628 can become much more noticeable, so the \u0627\u0644\u062e\u0637\u0627\u0641 load seen while pulling upward may differ considerably from the apparent \u0627\u0644\u0633\u0627\u0642 \u0627\u0644\u0648\u0632\u0646.<\/p>\n\n

Curved sections of the \u0627\u0644\u0628\u0626\u0631 add another effect. \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 passing through a dogleg bends as it moves, while still carrying the \u0627\u0644\u0648\u0632\u0646 of the \u0627\u0644\u0633\u0627\u0642 below. The \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 is therefore seeing more than simple tension, particularly in \u0627\u0644\u0628\u0626\u0631s with significant \u0627\u0644\u0645\u064a\u0644 or repeated changes in trajectory.<\/p>\n\n

\u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 movement also affects the fluid around it. Pulling the \u0627\u0644\u0633\u0627\u0642 can reduce bottom-\u0627\u0644\u0628\u0626\u0631 pressure through swab effects, while running it back down can increase pressure through surge. How large those changes become depends on the actual \u0627\u0644\u0628\u0626\u0631\u2014not just the \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631. \u0627\u0644\u0628\u0626\u0631 size, BHA geometry, clearance around the \u0627\u0644\u0633\u0627\u0642, \u0627\u0644\u062d\u0641\u0631-fluid properties and \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 movement all play a part.<\/p>\n\n

For that reason, a \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 specification cannot provide one tripping speed that is suitable for every job. The \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 supplier can confirm dimensions, \u0627\u0644\u062f\u0631\u062c\u0629, \u0627\u0644\u0648\u0635\u0644\u0629 and mechanical properties, but the operating limits for \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 tripping operations<\/strong> have to be determined from the actual \u0627\u0644\u0628\u0626\u0631 and \u062d\u0641\u0627\u0631\u0629 \u0627\u0644\u062d\u0641\u0631 conditions.<\/p>\n\n

For the \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 itself, the useful question is simpler: whether the body and \u0627\u0644\u0648\u0635\u0644\u0629 have enough capacity for the expected service and whether the finished \u0627\u0644\u0648\u0635\u0644\u0629 matches the equipment that will lift, grip and \u0627\u0644\u0631\u0628\u0637 the \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628.<\/p>\n\n

Where \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 Damage Occurs During Tripping<\/h2>\n\n

Drill pipe damage during tripping<\/strong> usually appears at the same places where the pipe is repeatedly gripped, supported, broken out, made up, or moved around the rig floor. The type of damage often gives a clue to how it was produced.<\/p>\n\n

Pin and box threads<\/strong> go through another connection cycle every time a stand is broken out and later made up again. Poor stabbing alignment can bring the threads into contact before the pin is properly centered, while dirt, drilling-fluid solids, metal particles or impact damage can interfere with smooth make-up. Galling, damaged thread crests or visible deformation deserve more attention than ordinary residual thread compound.<\/p>\n\n

Shoulder faces<\/strong> are easier to overlook because most attention naturally goes to the threads. A dent, raised metal or trapped debris on the shoulder can prevent the connection from seating correctly even when the thread profile still appears acceptable.<\/p>\n\n

The \u0627\u0644\u0648\u0635\u0644\u0629 OD<\/strong> sees a different type of contact. Tongs and breakout equipment grip this area directly, so handling marks commonly appear here. Light impressions are not the same as deep die marks, localized crushing or damage close to the \u0627\u0644\u0648\u0635\u0644\u0629.<\/p>\n\n

The \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 body and slip area<\/strong> experience concentrated support while the \u0627\u0644\u0633\u0627\u0642 is suspended. Repeated setting and releasing can leave characteristic marks in this zone. Deeper slip cuts, gouges, iMPact dents or local deformation deserve closer attention because the \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 will return down\u0627\u0644\u0628\u0626\u0631 and carry \u0627\u0644\u062d\u0641\u0631 load again.<\/p>\n\n

A visible mark alone does not determine whether a \u0627\u0644\u0648\u0635\u0644\u0629 remains suitable for service. Its location, depth, shape and the inspection criteria being applied matter more than appearance alone.<\/p>\n\n

\"\"<\/figure>\n\n

Why the Finished \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 \u0627\u0644\u0648\u0635\u0644\u0629 Matters During a Trip<\/h2>\n\n

A \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 purchase description often starts with body OD, nominal \u0627\u0644\u0648\u0632\u0646 and \u0627\u0644\u062f\u0631\u062c\u0629, but those values do not describe every interface used during a trip. The \u062d\u0641\u0627\u0631\u0629 \u0627\u0644\u062d\u0641\u0631 actually works with the complete \u0627\u0644\u0648\u0635\u0644\u0629: \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 body, upset, \u0627\u0644\u0648\u0635\u0644\u0629 and \u0627\u0644\u0648\u0635\u0644\u0629.<\/p>\n\n

A 5-\u0628\u0648\u0635\u0629 body may therefore require different handling considerations when tool-\u0627\u0644\u0648\u0635\u0644\u0629 OD, tong space or \u0627\u0644\u0648\u0635\u0644\u0629 geometry changes. \u0627\u0644\u062f\u0631\u062c\u0629 works the same way. E75, X95, G105 and S135 describe \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628-body strength levels, but they do not identify the \u0627\u0644\u0631\u0627\u0641\u0639\u0629 profile or tong area of the finished \u0627\u0644\u0648\u0635\u0644\u0629.<\/p>\n\n

This is why \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 selection should consider the complete API 5DP \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 sizes, \u0627\u0644\u062f\u0631\u062c\u0629s and \u0627\u0644\u0648\u0635\u0644\u0629s<\/a><\/strong>, rather than body OD or \u0627\u0644\u062f\u0631\u062c\u0629 alone.<\/p>\n\n

\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n<\/figure>\n\n

What \u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u062d\u0641\u0631 Conditions Matter Before Running Back In?<\/h2>\n\n

Running the \u0627\u0644\u0633\u0627\u0642 back down\u0627\u0644\u0628\u0626\u0631 starts with the \u0627\u0644\u0648\u0635\u0644\u0629 that is about to be made, not with a generic checklist applied equally to every surface mark.<\/p>\n\n

\u0627\u0644\u0648\u0635\u0644\u0629 identity should be clear so that the correct pin and box are being paired. The \u0627\u0644\u062e\u064a\u0637ed surfaces should be checked for obvious contamination, iMPact damage, or conditions that could prevent normal engagement.<\/p>\n\n

Shoulder faces also need attention. Dirt or newly created mechanical damage at the shoulder can affect how a \u0627\u0644\u062f\u0648\u0627\u0631-shouldered \u0627\u0644\u0648\u0635\u0644\u0629 seats during make-up.<\/p>\n\n

The tool-\u0627\u0644\u0648\u0635\u0644\u0629 OD can show what happened during breakout and handling. Fresh heavy tong impressions, iMPact damage, or unusual deformation should not simply be ignored because the \u0627\u0644\u062e\u064a\u0637s themselves look clean.<\/p>\n\n

The slip-contact region of the \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 body provides another useful coMParison point. New cuts or gouges that appeared during \u0631\u0641\u0639 \u0627\u0644\u0633\u0627\u0642<\/strong> should be distinguished from pre-existing surface \u0627\u0644\u062a\u0622\u0643\u0644.<\/p>\n\n

IADC’s tripping guidance similarly emphasizes the condition of tong jaws, tong dies, \u0627\u0644\u0631\u0627\u0641\u0639\u0629s, and slips before and during a trip, reflecting the direct relationship between equipment condition and the surfaces being handled.<\/p>\n\n

These checks are not a substitute for formal \u0627\u0644\u062d\u0641\u0631 stem inspection. A \u062d\u0641\u0627\u0631\u0629 \u0627\u0644\u062d\u0641\u0631-floor observation can identify a condition that needs attention, but it should not create an arbitrary acceptance limit. Continued service depends on the applicable inspection program, \u0627\u0644\u062d\u0641\u0631 requirements, and qualified evaluation.<\/p>\n\n