CN202359204U - 一种油井采油管道的阳极保护防腐结构 - Google Patents
一种油井采油管道的阳极保护防腐结构 Download PDFInfo
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104632090A (zh) * | 2013-11-08 | 2015-05-20 | 中国石油天然气股份有限公司 | 一种防止井下铝合金-碳钢管柱腐蚀损坏的结构及方法 |
CN108979562A (zh) * | 2018-06-19 | 2018-12-11 | 门雨晴 | 一种油田用旋转油管及短接 |
CN112695329A (zh) * | 2020-11-12 | 2021-04-23 | 中国石油天然气股份有限公司 | 一种油井泵下长效阳极内防腐装置及其防腐方法 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104632090A (zh) * | 2013-11-08 | 2015-05-20 | 中国石油天然气股份有限公司 | 一种防止井下铝合金-碳钢管柱腐蚀损坏的结构及方法 |
CN104632090B (zh) * | 2013-11-08 | 2017-01-25 | 中国石油天然气股份有限公司 | 一种防止井下铝合金‑碳钢管柱腐蚀损坏的结构及方法 |
CN108979562A (zh) * | 2018-06-19 | 2018-12-11 | 门雨晴 | 一种油田用旋转油管及短接 |
CN108979562B (zh) * | 2018-06-19 | 2019-05-10 | 大庆市璞庆钻采设备制造有限公司 | 一种油田用旋转油管及短接 |
CN112695329A (zh) * | 2020-11-12 | 2021-04-23 | 中国石油天然气股份有限公司 | 一种油井泵下长效阳极内防腐装置及其防腐方法 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: Tianjin Branch of China Sea Prtroleum (China) Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: Tianjin Branch of China Sea Prtroleum (China) Co., Ltd. Patentee before: China National Offshore Oil Corporation |
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CP01 | Change in the name or title of a patent holder | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20191111 |
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CF01 | Termination of patent right due to non-payment of annual fee |