CN204082055U - 一种用于石油钻机立管压力保护的系统 - Google Patents
一种用于石油钻机立管压力保护的系统 Download PDFInfo
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CN112177912A (zh) * | 2020-09-23 | 2021-01-05 | 中油国家油气钻井装备工程技术研究中心有限公司 | 一种高压泥浆泵的智能防喷系统及防喷方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN112177912A (zh) * | 2020-09-23 | 2021-01-05 | 中油国家油气钻井装备工程技术研究中心有限公司 | 一种高压泥浆泵的智能防喷系统及防喷方法 |
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Address after: 610599 No. 39, Baiyun Road, Xindu Industrial Development Zone, Sichuan, Chengdu, China Patentee after: ZHONGMAN ELECTRICAL ENGINEERING AND TECHNOLOGY Co.,Ltd. Patentee after: ZHONGMAN PETROLEUM AND NATURAL GAS GROUP CO.,LTD. Address before: 610599 No. 39, Baiyun Road, Xindu Industrial Development Zone, Sichuan, Chengdu, China Patentee before: ZHONGMAN ELECTRICAL ENGINEERING AND TECHNOLOGY Co.,Ltd. Patentee before: ZHONGMAN PETROLEUM AND NATURAL GAS GROUP Co.,Ltd. |
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CX01 | Expiry of patent term |
Granted publication date: 20150107 |
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CX01 | Expiry of patent term |