Testing device for identifying sealing performance of nonmetal sealing member and method thereof

Abstract

The invention discloses a testing device for identifying sealing performance of a nonmetal sealing member and a method thereof. The testing device comprises a device body which is internally providedwith a chamber with an opening in bottom of the device body. The bottom of the device body is provided with a bottom cover which is closely connected with the device body. The chamber is internally provided with a filling member with a gap to the inner wall of the device body. The gap between the inner wall of the device body and the sidewall of the filling member is provided with a to-be-tested nonmetal sealing member. The top of the device body is provided with a liquid injection inlet which is communicated with the chamber. The bottom cover is provided with a detecting hole for detecting whether leakage occurs. The testing device further comprises the components of a plurality of pressurizing pipes for introducing gas, a depressurizing pipe, a heating device, a temperature measuring device and a pressure measuring device. The testing device and the method thereof satisfy a requirement for a device test according to an ISO 10423:2009 appendix F.1.13.5.3 standard and furthermore can be applied to device tests of a petroleum equipment well head and a production tree.

Description

technical field [0001] The invention relates to the field of design verification in the petroleum equipment industry, in particular to a test device and method for evaluating the sealing performance of non-metallic seals. Background technique [0002] In the petroleum equipment industry, Type seals (S seals) are able to work under high pressure with a large squeeze gap and are used in a variety of oil and gas industries. [0003] S-seal is an important non-metallic seal for opening and closing fluid in wellhead assembly and Christmas tree equipment. There are various product models and specifications, and its safety and reliability are very important. Once the S-seal fails, it will cause oil (gas) well drilling or production to stop. Generate huge economic losses and safety accidents, and will cause major environmental pollution. With the increasing demand and export of domestic oil wellhead assembly and Christmas tree equipment, users at home and abroad have continuously...

AI Technical Summary

Problems solved by technology

[0005] Among the domestic petroleum equipment enterprises, the US Diamond Oil Drilling and Production System Engineering (Shanghai) Co., Ltd. started relatively early. Its company established a performance appraisal laboratory in 2008 when it was preparing to enter the global supply chain of Shell and Total. Before 2008, the performance test was commissioned by the British Moore Laboratory to conduct the test, which was very expensive. Later, with the help of Shell engineers, it established its own laboratory based on the experience of the British Moore Laboratory, and began to independently innovate and design its own product performance test. Programs and procedures, but due to technical blockade by foreign companies, the experimental software has not been very satisfactory

[0006] With the development of domestic oil companies, they are going abroad one after another, but the product performance appraisal test has always been a bottleneck problem. Although they have established their own simple laboratory, the performance test plan and test procedures are still very weak, and some companies even directly follow the Standard clauses require testing that results in failure of a product that was originally designed to meet the requirements

Some domestic companies also learn from the experience of the US Diamond Oil Drilling and Production System Engineering (Shanghai) Co., Ltd. laboratory, but they are still not mature enough in terms of test plans and testing procedures. When preparing to enter the supply chain audit of foreign oil companies, they will always be discovered Many problems, resulting in failure to pass the supplier chain audit

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