CN202926288U - 一种抽油井泄油器 - Google Patents
一种抽油井泄油器 Download PDFInfo
- Publication number
- CN202926288U CN202926288U CN 201220257145 CN201220257145U CN202926288U CN 202926288 U CN202926288 U CN 202926288U CN 201220257145 CN201220257145 CN 201220257145 CN 201220257145 U CN201220257145 U CN 201220257145U CN 202926288 U CN202926288 U CN 202926288U
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- Prior art keywords
- oil
- bleeder
- pumping well
- central tube
- friction sleeve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220257145 CN202926288U (zh) | 2012-06-01 | 2012-06-01 | 一种抽油井泄油器 |
Applications Claiming Priority (1)
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CN 201220257145 CN202926288U (zh) | 2012-06-01 | 2012-06-01 | 一种抽油井泄油器 |
Publications (1)
Publication Number | Publication Date |
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CN202926288U true CN202926288U (zh) | 2013-05-08 |
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CN 201220257145 Expired - Lifetime CN202926288U (zh) | 2012-06-01 | 2012-06-01 | 一种抽油井泄油器 |
Country Status (1)
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CN (1) | CN202926288U (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104863544A (zh) * | 2015-06-03 | 2015-08-26 | 东营市创新石油技术开发有限公司 | 一种旋转泄油器 |
-
2012
- 2012-06-01 CN CN 201220257145 patent/CN202926288U/zh not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104863544A (zh) * | 2015-06-03 | 2015-08-26 | 东营市创新石油技术开发有限公司 | 一种旋转泄油器 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: JILIN GUOTAI PETROLEUM DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: SONGYUAN GUOTAI PETROLEUM TECHNOLOGY SERVICE CO., LTD. Effective date: 20141223 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20141223 Address after: 138000 Jinghu District, Songyuan economic and Technological Development Zone, Jilin, Liuhe (317) Patentee after: Jilin Guotai Petroleum Development Co., Ltd. Address before: 138000 Jilin province Songyuan city road construction zone Ningjiang yadahong industrial Jilin Ruitai Patentee before: Songyuan Guotai Petroleum Technology Service Co., Ltd. |
|
CX01 | Expiry of patent term |
Granted publication date: 20130508 |
|
CX01 | Expiry of patent term |