Mandrel type casing pipe hanger load testing method

Abstract

Provided is a mandrel type casing pipe hanger load testing method. The method includes the following steps that S1, a mandrel type casing pipe hanger is placed in a high-low temperature box and connected with a testing device gas pipeline; S2, a room-temperature load test is carried out, and the minimum rated load and the maximum rated load of the mandrel type casing pipe hanger are tested under the room temperature condition correspondingly through a first testing end and a second testing end; and S3, a load internal-pressure temperature test is carried out, and the pressure keeping conditionof the mandrel type casing pipe hanger is tested corresponding through the first testing end and the second testing end under the low-temperature, room-temperature and high-temperature conditions. Bymeans of the method, the load test of the mandrel type casing pipe hanger is effectively completed, and performance qualification test requirements for mandrel type hangers of the first group of thePR2 level in the appendix F.2.19 of ISO 10423:2009 are met.

Description

technical field [0001] The invention relates to a load testing method of a mandrel type casing hanger. Background technique [0002] The mandrel casing hanger is an indispensable key component inside the oil wellhead device. Its main function is to carry the payload of the casing and isolate its annular pressure for sealing. Its safety and reliability must meet the bearing capacity of the maximum payload of the bushing. The diameter of the stress-bearing area of ​​the bearing part must be calculated through effective design. The material selection and process route must meet the design requirements. The process control strictly implements the standards. Once it fails, it cannot Guarantee the effectiveness of its design and the safety and reliability of users. [0003] The mandrel type casing hanger is a common device for wellhead oil production equipment. It has various specifications and models, and the safety and reliability of design and use are very important. With the...

AI Technical Summary

Problems solved by technology

Its safety and reliability must meet the bearing capacity of the maximum payload of the bushing. The diameter of the stress-bearing area of ​​the bearing part must be calculated through effective design. The material selection and process route must meet the design requirements. The process control strictly implements the standards. Once it fails, it cannot Guarantee the effectiveness of its design and the safety and reliability of users

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