Experimental Study on Sealing Failure Mechanism of Injection-Production String in Underground Gas Storage under Cyclic Loading
In order to clarify the impact of cyclic loading on the mechanical properties and sealing performance of threaded connections on pipe string under the injection-production conditions of gas storage and the airtight threaded connections suitable for the actual working conditions can be preferred, the...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/5206149 |
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| author | Jian-Jun Wang Xiao-Feng Sui Shan-Po Jia Zhong-Zhi Hua Si-Yao Wang |
| author_facet | Jian-Jun Wang Xiao-Feng Sui Shan-Po Jia Zhong-Zhi Hua Si-Yao Wang |
| author_sort | Jian-Jun Wang |
| collection | DOAJ |
| description | In order to clarify the impact of cyclic loading on the mechanical properties and sealing performance of threaded connections on pipe string under the injection-production conditions of gas storage and the airtight threaded connections suitable for the actual working conditions can be preferred, the sealing failure of injection and production tubular strings of several domestic gas storages was investigated comprehensively. It was found that the airtight threaded connections with different performance may leak during the service of tubular strings. Existing standards and testing methods have limitations, which are not fully applicable to the working environment of gas storage wells and the production mode of forced injection-production and cannot reflect the operation characteristics of multiround injection and production. Based on the stress analysis of the tubular string during injection and production, a full-scale simulation testing of 30 cycles of gas seal cycle under alternating load was proposed. The cyclic loading test results of two P110·13Cr tubing in domestic gas storage showed that after 30 cycles of cyclic loading, the yield strength, internal pressure strength, collapse strength, and compressive bearing capacity of tubing were all decreased; the compression efficiency of the joints should be fully considered when selecting the gas-sealed thread. |
| format | Article |
| id | doaj-art-1b0a20e70fae4e1fa914cdcb65de4e32 |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-1b0a20e70fae4e1fa914cdcb65de4e322025-08-20T03:54:24ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/5206149Experimental Study on Sealing Failure Mechanism of Injection-Production String in Underground Gas Storage under Cyclic LoadingJian-Jun Wang0Xiao-Feng Sui1Shan-Po Jia2Zhong-Zhi Hua3Si-Yao Wang4CNPC Tubular Goods Research InstituteCollege of Civil Engineering & ArchitectureInstiute of Unconventional Oil & GasCNPC First Gas Production Plant Changqing Oilfield Co.Tianjin Underground Gas Storage CompanyIn order to clarify the impact of cyclic loading on the mechanical properties and sealing performance of threaded connections on pipe string under the injection-production conditions of gas storage and the airtight threaded connections suitable for the actual working conditions can be preferred, the sealing failure of injection and production tubular strings of several domestic gas storages was investigated comprehensively. It was found that the airtight threaded connections with different performance may leak during the service of tubular strings. Existing standards and testing methods have limitations, which are not fully applicable to the working environment of gas storage wells and the production mode of forced injection-production and cannot reflect the operation characteristics of multiround injection and production. Based on the stress analysis of the tubular string during injection and production, a full-scale simulation testing of 30 cycles of gas seal cycle under alternating load was proposed. The cyclic loading test results of two P110·13Cr tubing in domestic gas storage showed that after 30 cycles of cyclic loading, the yield strength, internal pressure strength, collapse strength, and compressive bearing capacity of tubing were all decreased; the compression efficiency of the joints should be fully considered when selecting the gas-sealed thread.http://dx.doi.org/10.1155/2022/5206149 |
| spellingShingle | Jian-Jun Wang Xiao-Feng Sui Shan-Po Jia Zhong-Zhi Hua Si-Yao Wang Experimental Study on Sealing Failure Mechanism of Injection-Production String in Underground Gas Storage under Cyclic Loading Advances in Materials Science and Engineering |
| title | Experimental Study on Sealing Failure Mechanism of Injection-Production String in Underground Gas Storage under Cyclic Loading |
| title_full | Experimental Study on Sealing Failure Mechanism of Injection-Production String in Underground Gas Storage under Cyclic Loading |
| title_fullStr | Experimental Study on Sealing Failure Mechanism of Injection-Production String in Underground Gas Storage under Cyclic Loading |
| title_full_unstemmed | Experimental Study on Sealing Failure Mechanism of Injection-Production String in Underground Gas Storage under Cyclic Loading |
| title_short | Experimental Study on Sealing Failure Mechanism of Injection-Production String in Underground Gas Storage under Cyclic Loading |
| title_sort | experimental study on sealing failure mechanism of injection production string in underground gas storage under cyclic loading |
| url | http://dx.doi.org/10.1155/2022/5206149 |
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