CN208310732U - 一种液压驱动高度可调式套管头 - Google Patents
一种液压驱动高度可调式套管头 Download PDFInfo
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- CN208310732U CN208310732U CN201820932696.5U CN201820932696U CN208310732U CN 208310732 U CN208310732 U CN 208310732U CN 201820932696 U CN201820932696 U CN 201820932696U CN 208310732 U CN208310732 U CN 208310732U
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- Prior art keywords
- casing
- casing head
- inner cylinder
- outer circle
- lock sleeve
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Application Number | Priority Date | Filing Date | Title |
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CN201820932696.5U CN208310732U (zh) | 2018-06-15 | 2018-06-15 | 一种液压驱动高度可调式套管头 |
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CN201820932696.5U CN208310732U (zh) | 2018-06-15 | 2018-06-15 | 一种液压驱动高度可调式套管头 |
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CN208310732U true CN208310732U (zh) | 2019-01-01 |
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CN201820932696.5U Expired - Fee Related CN208310732U (zh) | 2018-06-15 | 2018-06-15 | 一种液压驱动高度可调式套管头 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109944565A (zh) * | 2019-04-02 | 2019-06-28 | 宝鸡石油机械有限责任公司 | 一种海洋干式井口装置 |
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2018
- 2018-06-15 CN CN201820932696.5U patent/CN208310732U/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109944565A (zh) * | 2019-04-02 | 2019-06-28 | 宝鸡石油机械有限责任公司 | 一种海洋干式井口装置 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201224 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. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 Termination date: 20210615 |
|
CF01 | Termination of patent right due to non-payment of annual fee |