New makeup method for API connections
- Exxon Co. (US)
- Exxon Production Research Co. (US)
A method of connection makeup was developed to provide a leak-free seal up to rated working pressure and tension for API 8-round casing and tubing threads. For many years, industry has used various torque-only and torque-turn techniques to make up these threads. Current industry needs and regulatory test requirements are raising the pressure-sealing needs and tensile-load requirements for drilling and production tubulars. This method, torque-position, accounts for variances in thread tolerances, coupling coating or plating, and thread compound. Advanced finite-element computer modeling helps to establish key makeup parameters. This paper discusses the problems with current makeup methods and evaluates the new method, including its field application for casing and tubing.
- OSTI ID:
- 6405397
- Journal Information:
- SPE (Society of Petroleum Engineers) Drilling Engineering; (USA), Vol. 3; ISSN 0885-9744
- Country of Publication:
- United States
- Language:
- English
Similar Records
Results of Performance Tests Performed on the John Watts WW Casing Connection on 7" Pipe
Makeup torques for API-type round thread casing connections with non-API weights, grades, and coupling diameters
Related Subjects
03 NATURAL GAS
42 ENGINEERING
NATURAL GAS WELLS
WELL COMPLETION
OIL WELLS
WELL CASINGS
SEALING MATERIALS
LEAK TESTING
PRESSURE GRADIENTS
TUBES
WELL DRILLING
DRILLING
MATERIALS
TESTING
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing
420205 - Engineering- Transport & Storage Facilities- (1980-)