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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Care should be exercised to prevent setting casing down on bottom or otherwise placing it in compression because of the danger of buckling, particularly in that part of the well where hole enlargement has occurred.
They should be retightened with tongs before? A copy of the initiating invoice must accompany each return. A steel tape calibrated in decimal feet millimeters to the nearest 0.
Used tubing should be classified according to loss of nominal wall thickness. Pipe should rest on supports properly spaced to prevent bending of the pipe or damage to the threads.
These percentages represent reductions in the body wall from the API speci? Care should be taken to prevent cha? The amount of wear increases with the length of time the casing is drilled through. It may be preferable in some? When lacking previous experience with any of the above measures, they should be used cautiously and on a limited scale until appraised for the particular operating conditions.
Work tubing and strings subjected to reciprocal tension stress often develop fatigue cracks at the root of the last engaged thread that could reduce tension values or propagate to joint failure during further use. No further reproduction is perm itted. Also on repeated makeup, the threads make up more each time and interference occurs.
Pipe should not be 5v1 higher than? Generally, API standards are reviewed and revised, reaf? The formulation and publication of API standards is not intended in any way to inhibit anyone from using any other practices.
Check spider slips to ensure they will not damage the tubing body. Galled appi due to dirt, careless stabbing, damaged threads, and poor or diluted thread compound. These inspection techniques are limited to location of cracks, pits, and other surface imperfections.
If the top side of the? Environmentally non-damaging thread compounds meeting API thread-compound performance requirements are available. In pumping wells, avoiding the use of casing pumps.
Tubing inspection and handling –
Class IV connections are intended for the most severe application, and Class I connections are intended for the least severe application. Performance properties should be based on a constant OD. These standards are not intended to obviate the need for applying sound engineering judgment regarding when and where these standards should be utilized.
Setting the casing aoi improper tension after cementing is one of the greatest contributing causes of such failures. The length of each piece of casing shall be measured prior to running. Use of power tongs is necessary to obtain consistent makeup torque. Hard areas or cracks may cause failure, especially when the casing is subjected to tool-joint battering.
It should not be expected that threaded connections shall gauge properly after being made up power tight, there- fore minor deviations from the specified tolerances should be accepted.
The torque values listed above are recommended for use in conjunction 51c close visual examination to be sure the shoulder closes and to avoid excessive bos swelling. When this is done, the mating coupling should be carefully inspected for damaged threads. Cracks have frequently resulted from striking the arc on casing.
Call toll-free oror fax to 5cc1 more. Questions concerning the interpretation of the content of this standard or com- ments and questions concerning the procedures under which this standard was developed should be directed in pr to the general manager of the Upstream Segment, American Petroleum Institute, L Street, N.
Use this section to list papers in OnePetro that a reader who wants to learn more should definitely read. Wear occurs inside the casing even though rubber protectors are applied to the drill pipe.
Continue the makeup, observing both the torque gauge and the approximately position of the aapi face with respect to the thread vanish point position. Hard areas or cracks may cause failure, especially when the casing is subjected to tool-joint battering.
Various nondestructive inspection services have been employed by users to ensure that the desired quality of tubing is being run. Load pipe with all couplings on the same end of the truck. In-service welds are called upon to withstand impact, pounding, vibration, and other severe service conditions to which casing is subjected.
When lacking previous experience with any of the above measures, these should be used cautiously and on a limited scale until appraised for the particular operating conditions.
API RP 5C – Care and Use of Casing and Tubing_百度文库
To prevent galling when making up connections in the? No provision of this recommended practice shall be cause for rejection of casing or tubing provided the threads are in accordance with the requirements of the latest edition of API Standard 5B. Damaged threads or threads that do not comply with the speci?
Table 3 contains makeup torque guidelines for nonupset, external upset, and integral joint tubing, based on 1 percent of the calculated joint pullout strength determined from the joint pullout strength formula for 8-round-thread casing in API Bulletin 5C3. The authorized user is perm itted to print one single copy for personal reference use only. The maximum torque should be not more than percent of the selected torque.
API RP 5C1 Review Torque Tables WI 2356.
If 5c11 makeup is such that the thread vanish point is buried two thread turns and 75 percent of the torque 4. Tongs should be examined for wear on hinge pins and hinge surfaces.
Before loading or unloading make sure that the thread protectors are tightly in place. After reconditioning, electrodes must be placed into the holding oven.