Drillstring Inspection Standard
Once printed this specification becomes an uncontrolled copy of the online version.
Make and Break
Revision Number: 0
Effectivity Date: 10 June 2016
Rev Date Description Change Note
0 10/06/16 First online publication
Scope and Objective
This procedure covers the requirements for make and break of new drill pipe, HWDP, collars or other large
volume string components where the service has not been provided by the manufacturer or where large quan-
tities of components have been repaired. Make and break performed by manufacturers on new equipment is
covered under NS-1™ Sub spec 142.
Make and break is a process performed in order to cold work thread flanks, sealing and secondary shoulders
which provides a hardened surface resistant to galling.
Make and break should be performed prior to sending the equipment to the rig site where the process
will be time consuming and expensive.
Procedure
1. Make-up torque for API connections shall be as per API RP7G for the appropriate grade, connection
type and dimensions.
2. Make-up torque for API connections with non API OD/ID combinations shall be as per NS-3™ or other
customer approved source, e.g. manufacturer’s data sheet.
3. Make-up torque for proprietary connections shall be as per the manufacturer’s data sheet.
4. The thread compound friction factor shall be determined and the target make-up torque adjusted as
required.
e.g. 30000 ft-lbs MUT with a friction factor of 1.1
Actual MUT to be applied is 30000 x 1.1 = 33000 ft lbs.
5. The torque unit shall have evidence of calibration within the previous 12 months.
6. The torque unit should have paper or electronic recording capability. Where the unit does not have
recording capability, the make-up shall be independently witnessed and final torque recorded (inde-
pendent does not imply 3rd party but shall be independent of the torqueing operation personnel).
7. The serial number shall be recorded for both joints for each pin and box combination.
8. Remove protectors, clean connections of any contaminants and visually inspect for damage on the
threads and shoulders which may cause interference during make-up. Damaged connections shall be
rejected.
Photocopying or reproducing this page in any way constitutes as an infringement of the license
agreement for the continued supply of the NS-2™ Service
Drillstring Inspection Standard
Once printed this specification becomes an uncontrolled copy of the online version.
9. The approved thread make-up compound shall be applied evenly to threads and shoulders on both pin
and box connections.
10. Pin and box connections shall be made up hand tight taking care to avoid cross threading or damage
to threads and shoulders.
11. The hand tight assembled components shall be placed in the make or break unit and secured by jaws
in the headstock. The jaws shall be set back at least 1 inch (25.4 mm) from sealing shoulders.
12. The make-up and break out of the tool joints, whether performed in progressive stages or in a single
operation, shall achieve a final torque of 100% of the make-up torque required.
13. Deviation from nominal MUT shall not exceed ±5%.
14. After completing make-up and break out operations, pin and box connections shall be separated and
visually inspected for thread and seal damage. Fresh thread compound shall be applied.
15. Each pin and box tool joint shall be stamped “BI” to identify that the make and break operation has
been performed.
16. Any excessively raised tong cuts shall be smoothed off with a grinder. Care shall be exercised to remove
only raised metal and to ensure that all ground areas are properly contoured.
17. Torque records shall be retained by the provider for each joint/connection made up for 12 months or
in accordance with the company operating procedure, whichever is longer.
Photocopying or reproducing this page in any way constitutes as an infringement of the license
agreement for the continued supply of the NS-2™ Service
