CN2799906Y - 大流道长柱塞防砂抽油泵 - Google Patents
大流道长柱塞防砂抽油泵 Download PDFInfo
- Publication number
- CN2799906Y CN2799906Y CN 200520084535 CN200520084535U CN2799906Y CN 2799906 Y CN2799906 Y CN 2799906Y CN 200520084535 CN200520084535 CN 200520084535 CN 200520084535 U CN200520084535 U CN 200520084535U CN 2799906 Y CN2799906 Y CN 2799906Y
- Authority
- CN
- China
- Prior art keywords
- valve assembly
- long
- connecting head
- outlet valve
- gas
- 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
Links
- 239000003129 oil well Substances 0.000 title claims abstract description 14
- 230000002146 bilateral effect Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 abstract description 14
- 239000004576 sand Substances 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 230000004064 dysfunction Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 101100293261 Mus musculus Naa15 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520084535 CN2799906Y (zh) | 2005-06-27 | 2005-06-27 | 大流道长柱塞防砂抽油泵 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520084535 CN2799906Y (zh) | 2005-06-27 | 2005-06-27 | 大流道长柱塞防砂抽油泵 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2799906Y true CN2799906Y (zh) | 2006-07-26 |
Family
ID=36842404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200520084535 Expired - Lifetime CN2799906Y (zh) | 2005-06-27 | 2005-06-27 | 大流道长柱塞防砂抽油泵 |
Country Status (1)
Country | Link |
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CN (1) | CN2799906Y (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112065697A (zh) * | 2020-10-23 | 2020-12-11 | 山东威马泵业股份有限公司 | 一种双通道滑阀全程抽油泵及专用滑阀 |
-
2005
- 2005-06-27 CN CN 200520084535 patent/CN2799906Y/zh not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112065697A (zh) * | 2020-10-23 | 2020-12-11 | 山东威马泵业股份有限公司 | 一种双通道滑阀全程抽油泵及专用滑阀 |
CN112065697B (zh) * | 2020-10-23 | 2024-05-24 | 山东威马泵业股份有限公司 | 一种双通道滑阀全程抽油泵及专用滑阀 |
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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: SHANDONG WEIMA PUMPS MANUFACTURING CO., LTD. Free format text: FORMER OWNER: MA BAOZHONG Effective date: 20140512 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 271100 LAIWU, SHANDONG PROVINCE TO: 271199 LAIWU, SHANDONG PROVINCE |
|
TR01 | Transfer of patent right |
Effective date of registration: 20140512 Address after: 271199 intersection of Yuntai Mountain Road and Panlong River Street, Laiwu hi tech Zone, Shandong Patentee after: SHANDONG WEIMA PUMP MANUFACTURING CO., LTD. Address before: Zhangjiawa town 271100 Shandong province Laiwu City Levin District Shandong Weima pumps manufacturing Co. Patentee before: Ma Baozhong |
|
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Weima pumps manufacturing Co. Assignor: Ma Baozhong Contract record no.: 2010370000328 Denomination of utility model: Big flow channel and long plunger type sand-control oil well pump Granted publication date: 20060726 License type: Exclusive License Record date: 20100602 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
CX01 | Expiry of patent term |
Expiration termination date: 20150627 Granted publication date: 20060726 |
|
EXPY | Termination of patent right or utility model |