CN103075125B - 一种压力平衡装置 - Google Patents
一种压力平衡装置 Download PDFInfo
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- CN103075125B CN103075125B CN201110326603.7A CN201110326603A CN103075125B CN 103075125 B CN103075125 B CN 103075125B CN 201110326603 A CN201110326603 A CN 201110326603A CN 103075125 B CN103075125 B CN 103075125B
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CN201110326603.7A CN103075125B (zh) | 2011-10-25 | 2011-10-25 | 一种压力平衡装置 |
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CN201110326603.7A CN103075125B (zh) | 2011-10-25 | 2011-10-25 | 一种压力平衡装置 |
Publications (2)
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CN103075125A CN103075125A (zh) | 2013-05-01 |
CN103075125B true CN103075125B (zh) | 2015-06-17 |
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CN201110326603.7A Active CN103075125B (zh) | 2011-10-25 | 2011-10-25 | 一种压力平衡装置 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104373107B (zh) * | 2014-10-24 | 2017-01-25 | 武汉海王机电工程技术公司 | 石油测井仪器压力平衡推靠套筒装置 |
CN110195575A (zh) * | 2019-05-05 | 2019-09-03 | 天津凯雷油田技术有限公司 | 一种液压控制可多次开关地层防污染阀 |
CN110159222B (zh) * | 2019-06-03 | 2021-10-15 | 李洪敏 | 封隔器、采油系统、采油泵及采油方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941190A (en) * | 1974-11-18 | 1976-03-02 | Lynes, Inc. | Well control apparatus |
US4532989A (en) * | 1981-07-01 | 1985-08-06 | Otis Engineering Corp. | Valved plug for packer |
CN2559781Y (zh) * | 2002-07-18 | 2003-07-09 | 阜新市石油工具厂 | 平衡压力封隔器 |
CN2675854Y (zh) * | 2004-02-06 | 2005-02-02 | 中国石化胜利油田有限公司采油工艺研究院 | 双向油层保护器 |
CN202300301U (zh) * | 2011-10-25 | 2012-07-04 | 中国石油化工股份有限公司 | 一种压力平衡装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8517114B2 (en) * | 2010-02-26 | 2013-08-27 | Baker Hughes Incorporated | Mechanical lock with pressure balanced floating piston |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941190A (en) * | 1974-11-18 | 1976-03-02 | Lynes, Inc. | Well control apparatus |
US4532989A (en) * | 1981-07-01 | 1985-08-06 | Otis Engineering Corp. | Valved plug for packer |
CN2559781Y (zh) * | 2002-07-18 | 2003-07-09 | 阜新市石油工具厂 | 平衡压力封隔器 |
CN2675854Y (zh) * | 2004-02-06 | 2005-02-02 | 中国石化胜利油田有限公司采油工艺研究院 | 双向油层保护器 |
CN202300301U (zh) * | 2011-10-25 | 2012-07-04 | 中国石油化工股份有限公司 | 一种压力平衡装置 |
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CN103075125A (zh) | 2013-05-01 |
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Effective date of registration: 20220705 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: Sinopec Jingwei Co.,Ltd. Patentee after: Geological measurement and Control Technology Research Institute of Sinopec Jingwei Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: Drilling Technology Research Institute of Sinopec Shengli Petroleum Administration Bureau |
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CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Wu Baizhi Inventor after: Hou Shugang Inventor after: Gao Liping Inventor after: Liu Qinglong Inventor after: Chen Wei Inventor after: Wang Yifeng Inventor after: Sun Feng Inventor after: Cheng Guoqiang Inventor before: Gao Liping Inventor before: Liu Qinglong Inventor before: Chen Wei Inventor before: Wang Yifeng Inventor before: Sun Feng Inventor before: Cheng Guoqiang |