CN205135427U - 非重叠复合结构pdc钻头 - Google Patents
非重叠复合结构pdc钻头 Download PDFInfo
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108798525A (zh) * | 2018-06-12 | 2018-11-13 | 中国五冶集团有限公司 | 叠层工作的单牙轮钻头 |
CN110145242A (zh) * | 2018-02-11 | 2019-08-20 | 中石化石油工程技术服务有限公司 | 一种带有锥形辅助切削齿pdc钻头 |
CN111980587A (zh) * | 2020-07-24 | 2020-11-24 | 四川川庆石油钻采科技有限公司 | 一种用于水平井的防震钻头及其制造方法 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110145242A (zh) * | 2018-02-11 | 2019-08-20 | 中石化石油工程技术服务有限公司 | 一种带有锥形辅助切削齿pdc钻头 |
CN108798525A (zh) * | 2018-06-12 | 2018-11-13 | 中国五冶集团有限公司 | 叠层工作的单牙轮钻头 |
CN111980587A (zh) * | 2020-07-24 | 2020-11-24 | 四川川庆石油钻采科技有限公司 | 一种用于水平井的防震钻头及其制造方法 |
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C14 | Grant of patent or utility model | ||
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Effective date of registration: 20200924 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee after: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. Address before: 300280 Tianjin Dagang oil field, Grand Port, Tianjin Patentee before: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee before: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. |
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