CN203655164U - 一种套管开窗钻头 - Google Patents
一种套管开窗钻头 Download PDFInfo
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- CN203655164U CN203655164U CN201320675327.XU CN201320675327U CN203655164U CN 203655164 U CN203655164 U CN 203655164U CN 201320675327 U CN201320675327 U CN 201320675327U CN 203655164 U CN203655164 U CN 203655164U
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- Prior art keywords
- bit
- windowing
- bit body
- drill body
- casing pipe
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CN201320675327.XU CN203655164U (zh) | 2013-10-29 | 2013-10-29 | 一种套管开窗钻头 |
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CN201320675327.XU CN203655164U (zh) | 2013-10-29 | 2013-10-29 | 一种套管开窗钻头 |
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CN203655164U true CN203655164U (zh) | 2014-06-18 |
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CN201320675327.XU Expired - Fee Related CN203655164U (zh) | 2013-10-29 | 2013-10-29 | 一种套管开窗钻头 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112355333A (zh) * | 2020-10-20 | 2021-02-12 | 科益展智能装备有限公司广州分公司 | 一种刀具及其刀头结构 |
CN115078129A (zh) * | 2022-08-16 | 2022-09-20 | 成都理工大学 | 一种孔底剪切仪及岩土体抗剪强度测试方法 |
CN115165617A (zh) * | 2022-09-08 | 2022-10-11 | 深圳市勘察研究院有限公司 | 自钻式孔底旋压剪切仪 |
-
2013
- 2013-10-29 CN CN201320675327.XU patent/CN203655164U/zh not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112355333A (zh) * | 2020-10-20 | 2021-02-12 | 科益展智能装备有限公司广州分公司 | 一种刀具及其刀头结构 |
CN112355333B (zh) * | 2020-10-20 | 2023-08-08 | 科益展智能装备有限公司 | 一种刀具及其刀头结构 |
CN115078129A (zh) * | 2022-08-16 | 2022-09-20 | 成都理工大学 | 一种孔底剪切仪及岩土体抗剪强度测试方法 |
CN115078129B (zh) * | 2022-08-16 | 2022-11-11 | 成都理工大学 | 一种孔底剪切仪及岩土体抗剪强度测试方法 |
CN115165617A (zh) * | 2022-09-08 | 2022-10-11 | 深圳市勘察研究院有限公司 | 自钻式孔底旋压剪切仪 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20151208 Address after: 100728 No. 22 North Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: Sinopec Corp. Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: Drilling Research Institute of Zhongyuan Petroleum Engineering Co., Ltd. Sinopec |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20171029 |