GB/T 21267-2024 Petroleum and natural gas industries — Procedures for testing casing and tubing connections
1 Scope
This document specifies tests to perform in order to determine the galling tendency, sealing performance and structural integrity of casing and tubing connections. This document is applicable to the evaluation tests of casing and tubing connections.
Note: “Casing” and “tubing” apply to the service application and not to the diameter of the pipe.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
API RP 5C5:2017 Procedures for testing casing and tubing connections
3 Terms and definitions
For the purposes of this document, the terms and definitions given in API RP 5C5:2017 and the following apply.
3.1
near-yield loading effects
cyclic growth of plastic strain range in a cyclically softening material at stresses below the material yield strength
3.2
nominal connection performance envelope
the manufacturer’s claimed connection performance envelope that is based on the pipe’s specified geometrical and material attributes
4 Supplements to API RP 5C5:2017
4.1 General
This document is a supplement to API RPI 5C5:2017 and specifies other requirements in addition to the requirements of API RPI 5C5:2017.
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Supplements to API RP 5C5:2017
