CN202249947U - 井下安全阀 - Google Patents
井下安全阀 Download PDFInfo
- Publication number
- CN202249947U CN202249947U CN2011203100751U CN201120310075U CN202249947U CN 202249947 U CN202249947 U CN 202249947U CN 2011203100751 U CN2011203100751 U CN 2011203100751U CN 201120310075 U CN201120310075 U CN 201120310075U CN 202249947 U CN202249947 U CN 202249947U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- piston
- inner chamber
- valve seat
- Prior art date
- 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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- 238000007789 sealing Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011203100751U CN202249947U (zh) | 2011-08-24 | 2011-08-24 | 井下安全阀 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011203100751U CN202249947U (zh) | 2011-08-24 | 2011-08-24 | 井下安全阀 |
Publications (1)
Publication Number | Publication Date |
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CN202249947U true CN202249947U (zh) | 2012-05-30 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2011203100751U Expired - Lifetime CN202249947U (zh) | 2011-08-24 | 2011-08-24 | 井下安全阀 |
Country Status (1)
Country | Link |
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CN (1) | CN202249947U (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103821477A (zh) * | 2014-03-17 | 2014-05-28 | 中国石油大学(华东) | 自平衡井下安全阀 |
CN107466336A (zh) * | 2015-04-15 | 2017-12-12 | 哈利伯顿能源服务公司 | 井下工具的远程液压控制 |
-
2011
- 2011-08-24 CN CN2011203100751U patent/CN202249947U/zh not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103821477A (zh) * | 2014-03-17 | 2014-05-28 | 中国石油大学(华东) | 自平衡井下安全阀 |
CN103821477B (zh) * | 2014-03-17 | 2016-04-13 | 中国石油大学(华东) | 自平衡井下安全阀 |
CN107466336A (zh) * | 2015-04-15 | 2017-12-12 | 哈利伯顿能源服务公司 | 井下工具的远程液压控制 |
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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: WHEEL STAND GRAND PETROLEUM TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING GRAND OILFIELD TECHNOLOGY CO.,LTD. Effective date: 20130701 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100102 CHAOYANG, BEIJING TO: 841600 BAYINGOLIN MONGOL AUTONOMOUS PREFECTURE, XINJIANG UYGUR AUTONOMOUS REGION |
|
TR01 | Transfer of patent right |
Effective date of registration: 20130701 Address after: 841600, the Xinjiang Uygur Autonomous Region County, Luntai law inspection area 2, building 2, Room 102, Lining rental housing Patentee after: Luntai Greatest Oil Technology Co., Ltd. Address before: 100102, No. 2608, 22 floor, building 601, Wangjing garden, Beijing, Chaoyang District Patentee before: Beijing Grand Oilfield Technology Co., Ltd. |
|
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: He Zhigang Inventor before: He Zhigang Inventor before: Liu Jianhua Inventor before: Lao Chunyu Inventor before: Xu Kaifang |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HE ZHIGANG LIU JIANHUA LAO CHUNYU XU KAIFANG TO: HE ZHIGANG |
|
ASS | Succession or assignment of patent right |
Owner name: XINJIANG GRAND PETROLEUM TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WHEEL STAND GRAND PETROLEUM TECHNOLOGY CO., LTD. Effective date: 20140928 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 841600 BAYINGOLIN MONGOL AUTONOMOUS PREFECTURE, XINJIANG UYGUR AUTONOMOUS REGION TO: 841000 BAYINGOLIN MONGOL AUTONOMOUS PREFECTURE, XINJIANG UYGUR AUTONOMOUS REGION |
|
TR01 | Transfer of patent right |
Effective date of registration: 20140928 Address after: 841000, the Xinjiang Uygur Autonomous Region Bazhou Korla economic and Technological Development Zone Development Avenue incubator center building, room 402 Patentee after: XINJIANG GRAND OILFIELD TECHNOLOGY CO., LTD. Address before: 841600, the Xinjiang Uygur Autonomous Region County, Luntai law inspection area 2, building 2, Room 102, Lining rental housing Patentee before: Luntai Greatest Oil Technology Co., Ltd. |
|
DD01 | Delivery of document by public notice | ||
DD01 | Delivery of document by public notice |
Addressee: XINJIANG GRAND OILFIELD TECHNOLOGY CO., LTD. Document name: Notification of Passing Examination on Formalities |
|
CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
CX01 | Expiry of patent term |