CN207129851U - 半潜式钻井平台防喷器组起吊用导向工具 - Google Patents
半潜式钻井平台防喷器组起吊用导向工具 Download PDFInfo
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Cited By (1)
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CN110952943A (zh) * | 2019-11-25 | 2020-04-03 | 中国海洋石油集团有限公司 | 一种井控用导向装置及其使用方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN110952943A (zh) * | 2019-11-25 | 2020-04-03 | 中国海洋石油集团有限公司 | 一种井控用导向装置及其使用方法 |
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Effective date of registration: 20210107 Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee after: BAOJI OILFIELD MACHINERY Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co.,Ltd. Address before: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee before: Baoji Oilfield Machinery Co.,Ltd. |
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TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20210718 |
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CF01 | Termination of patent right due to non-payment of annual fee |