CN205936496U - 一种抽油杆井口刮油装置 - Google Patents
一种抽油杆井口刮油装置 Download PDFInfo
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Cited By (1)
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CN108331554A (zh) * | 2018-02-12 | 2018-07-27 | 新疆石油管理局有限公司准东勘探开发分公司 | 可变通径的抽油杆井口刮油蜡装置 |
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CN108331554A (zh) * | 2018-02-12 | 2018-07-27 | 新疆石油管理局有限公司准东勘探开发分公司 | 可变通径的抽油杆井口刮油蜡装置 |
CN108331554B (zh) * | 2018-02-12 | 2024-04-26 | 中国石油天然气集团有限公司 | 可变通径的抽油杆井口刮油蜡装置 |
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Inventor after: Jiang Lingfei Inventor after: Guo Qingqun Inventor after: Ma Yongzhong Inventor after: Liu Chengwei Inventor after: Wen Yunfei Inventor after: Qiang Haiping Inventor after: Jin Li Inventor after: You Dongqing Inventor after: Sun Yumin Inventor after: Yu Dongsheng Inventor before: Jiang Lingfei Inventor before: Guo Qingqun Inventor before: Ma Yongzhong Inventor before: Liu Chengwei Inventor before: Wen Yunfei Inventor before: Qiang Haiping Inventor before: Jin Li Inventor before: You Dongqing Inventor before: Sun Yumin Inventor before: Yu Dongsheng |