Find the most up-to-date version of API RP 5C1 at Engineering API RP 5C1 specifies color-coding to indicate thickness. The color coding should consist of a paint band of the appropriate color approximately. TORQUE TABLE REVIEW 8 RD THREAD CASING Group Discussions Options: Reinstate Min. & Max. Torque Values with References to section Remove.

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Thread galling of gall-prone materials martensitic chromium steels, 9 Cr and 13 Cr occurs during movement—stabbing or pulling and makeup or breakout. Collar-type tubing elevators are adequate for API nonbeveled couplings; however, slip-type elevators are recommended when running tubing with beveled couplings, special clearance couplings, and integral joint tubing.

API RP 5C – Care and Use of Casing and Tubing_百度文库

Name As It Appears on Card: The spider must be level. When thorough metallurgical analysis reveals some facet of pipe quality to be involved in the failure, the results of the study should be reported to the API of? Pipe with pits may not be used under some corrosive conditions but may perform satisfactorily where corrosion is not a factor.

In addition to the body, the tubing upset and threads often require inspection, typically by magnetic powder and use of thread gauges. Do not jump tubing out of the coupling. A steel tape calibrated in decimal feet millimeters to the nearest 0. If spinning line is used, it should pull close 55c1 the coupling. The purpose of the welds is to make attachments or to prevent joints from unscrewing. Thread protectors must be installed properly and rough handling avoided.

Performance properties should be based on a constant OD. When rolling pipe, on the rack, keep pipe parallel and do not allow pipe to gather momentum or to strike the ends. It is recommended that the makeup target be based on position, not torque. The procedure should be reversed for disassembly. Threads and lubricant must be clean.



API RP 5C1 Archives – Production Technology

The tongs selected should be capable of attaining high torques [50, ft-lb 67, N? Improper joint makeup at mill. The acceptability of reconditioned threads should always be con- firmed by gauging and inspection in accordance with API Specification 51.

The brush or utensil used in applying thread compound should be kept free of foreign matter, and the compound should never be thinned.

API RP 5C1 Recommended Practice for Care and Use of Casing and Tubing

Clean protectors should be placed on the tubing before it is laid down. The inside of tubing can be protected with special liners, coatings, or inhibitors. A fast thread lead at the area of last thread engagement of round threads would indicate that the threads became stretched when pulled at loads exceeding the yield strength of the connection.

The outside shoulder is not sealing surface; serves as a stop only. Therefore, field weldability shall not be of primary consideration in the selection of steel for the manufacture of casing.

Tonging too high on casing, especially on breaking out. Stands of tubing sizes 1. Tubing should be handled at all times on racks or on wooden or metal surfaces free of rocks, sand, or dirt other than normal drilling mud.

Wear occurs inside the casing even though rubber protectors are applied to the drill pipe. Thread compounds described in the latest edition of API Bulletin 5A2 should not be used on rotary shouldered connections.

Load pipe with all couplings on the same end of the truck. To prevent galling when making connections in the?

This gives a bending effect that tends to gall the threads. If other values are chosen, the minimum torque should be not less than 75 percent of the value selected.

Wear occurs inside casing and liners by rotation and movement of the drill string while drilling. The measurement should be made from the outermost face of the coupling or box to the position on the externally threaded end where the coupling or the box stops when the joint is made up power tight.


Do not unload pipe by dropping. Pipe should not be stacked higher than? Used tubing frequently requires inspection. It is not, however, within the scope of this recommended practice to provide detailed suggestions for corrosion control under speci?

Increased axial tension stress due to higher torque values could be excessive for sul? However, there is no standard method for calculating perfor- mance properties of used casing and tubing. Service induced defects considered to be representative of defects associated with used pipe inspection are as follows: In this manner, ends are welded without either striking or breaking the arc at the ends. When rolling down skids, roll pipe parallel to the stack and do not allow pipe to gather momentum or to strike the ends, because even with thread protectors in place there is danger of damaging the threads.

There are several types of tubing inspection methods that may be beneficial. If external corrosion is evident, it must also be taken into account. To accomplish this, ductile welds free from cracks and brittle or hard spots are desired. If external corrosion is evident, it must also be taken into account.

Tubing inspection and handling

Since corrosion may result from many causes and in? The second pass should be laid on very quickly after cleaning the?

These include all electrodes with the AWS classi?

The type of metal loss may influence the application of used casing and tubing. Joints should be made up tight, approximately two turns beyond the hand-tight position, with care being taken not to gall the threads.

The color coding should consist of a paint band of the appropriate color approximately 2 inches wide around the body of the pipe approximately 1 foot from the box end.

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