CN202148877U - 限压装置 - Google Patents
限压装置 Download PDFInfo
- Publication number
- CN202148877U CN202148877U CN201120248018U CN201120248018U CN202148877U CN 202148877 U CN202148877 U CN 202148877U CN 201120248018 U CN201120248018 U CN 201120248018U CN 201120248018 U CN201120248018 U CN 201120248018U CN 202148877 U CN202148877 U CN 202148877U
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- Prior art keywords
- hole
- switch valve
- pressure
- limiting device
- rupture disk
- 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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Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201120248018U CN202148877U (zh) | 2011-07-14 | 2011-07-14 | 限压装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201120248018U CN202148877U (zh) | 2011-07-14 | 2011-07-14 | 限压装置 |
Publications (1)
Publication Number | Publication Date |
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CN202148877U true CN202148877U (zh) | 2012-02-22 |
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ID=45589940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201120248018U Expired - Lifetime CN202148877U (zh) | 2011-07-14 | 2011-07-14 | 限压装置 |
Country Status (1)
Country | Link |
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CN (1) | CN202148877U (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102877805A (zh) * | 2011-07-14 | 2013-01-16 | 四川宏华石油设备有限公司 | 限压装置 |
CN113982512A (zh) * | 2021-10-26 | 2022-01-28 | 长江大学 | 一种螺杆钻具旁通阀的泄压方法及装置 |
-
2011
- 2011-07-14 CN CN201120248018U patent/CN202148877U/zh not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102877805A (zh) * | 2011-07-14 | 2013-01-16 | 四川宏华石油设备有限公司 | 限压装置 |
CN113982512A (zh) * | 2021-10-26 | 2022-01-28 | 长江大学 | 一种螺杆钻具旁通阀的泄压方法及装置 |
CN113982512B (zh) * | 2021-10-26 | 2024-05-07 | 长江大学 | 一种螺杆钻具旁通阀的泄压方法及装置 |
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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: HONGHUA OIL AND GAS ENGINEERING TECHNOLOGY SERVICE Free format text: FORMER OWNER: HONGHUA PETROLEUM EQUIPMENT CO., LTD., SICHUAN Effective date: 20141128 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 618300 DEYANG, SICHUAN PROVINCE TO: 610036 CHENGDU, SICHUAN PROVINCE |
|
TR01 | Transfer of patent right |
Effective date of registration: 20141128 Address after: 610036 No. 99 Yingbin Avenue information garden, Chengdu, Sichuan, Jinniu District Patentee after: Honghua oil & Gas Engineering Technology Service (Sichuan) Co., Ltd. Address before: 618300 Zhongshan Road, Guanghan, Sichuan Province, south of the two paragraph of the Patentee before: Honghua Petroleum Equipment Co., Ltd., Sichuan |
|
CP01 | Change in the name or title of a patent holder |
Address after: 610036 No. 99 Yingbin Avenue information garden, Chengdu, Sichuan, Jinniu District Patentee after: Honghua oil and Gas Engineering Technology Service Co., Ltd Address before: 610036 No. 99 Yingbin Avenue information garden, Chengdu, Sichuan, Jinniu District Patentee before: HONGHUA OIL & GAS ENGINEERING SERVICE SICHUAN Co.,Ltd. |
|
CP01 | Change in the name or title of a patent holder | ||
CX01 | Expiry of patent term |
Granted publication date: 20120222 |
|
CX01 | Expiry of patent term |