CN2693987Y - Oil pump with soft sealing plunger - Google Patents
Oil pump with soft sealing plunger Download PDFInfo
- Publication number
- CN2693987Y CN2693987Y CN 03266187 CN03266187U CN2693987Y CN 2693987 Y CN2693987 Y CN 2693987Y CN 03266187 CN03266187 CN 03266187 CN 03266187 U CN03266187 U CN 03266187U CN 2693987 Y CN2693987 Y CN 2693987Y
- Authority
- CN
- China
- Prior art keywords
- plunger
- pump
- pump barrel
- oil
- packing element
- 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 - Fee Related
Links
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a soft-sealing plunger-piston oil pump applied in oilfield reservoir engineering, mainly suitable to thick oil mining wells and production wells adopting polyaromatics to drive oil. Because of the large viscosity or long-term injection of polyaromatics, the crude oil tends to adhere on the inner wall of the pump barrel of the oil pump; in mining, conventional oil pumps meet large up-down stroke resistance, the descending especially difficult with low pumping efficiency. The utility model processes the plunger piston of the oil pump with rubber and enlarges the interval between the plunger piston and the pump barrel. Meanwhile, when running up, the rubber plunger piston can also squeeze off adhesion on the inner wall of the pump barrel; the application to thick oil wells and production wells injecting polyaromatics has a nice respond. The soft-sealing plunger-piston oil pump has a larger interval between the pump barrel and the soft-sealing plunger piston than conventional plunger piston oil pumps; therefore, the processing quality requirements for the inner wall of the pump barrel is relatively lower, and the utility model can be well used for repaired pumps or poor quality pumps.
Description
Technical field:
The utility model relates to the soft sealing plunger oil well pump that a kind of petroleum production engineering is used, and this pump mainly is applicable to the thickened oil recovery well and has adopted the oil recovery well of polymer displacement of reservoir oil, belongs to the petroleum machinery field.
Background technique:
At present, domestic part oil field or block viscosity of crude are big, main output viscous crude, or because long-term injection of polymer, polymer and derivative thereof are more in the oil well, these materials such as barium sulphate, barium carbouate, silica etc. are all than thickness, on the pump barrel inwall attached to oil well pump, when conventional oil well pump was exploited, the up-down stroke resistance was bigger easily, especially descending difficulty, pump efficiency is low.
In order to address the above problem, the plunger of conventional oil well pump has been carried out new design, formed following technological scheme.
Summary of the invention:
The utility model adopts rubber to process the plunger of oil well pump, has enlarged the gap of plunger and pump barrel simultaneously, in addition, can also squeeze the attachment of removing on the pump barrel inwall when rubber plunger is up, and is good in thick oil well and polymer injection oil recovery well effect.
The utility model adopts following technological scheme: a kind of soft sealing plunger oil well pump is by pump barrel; plunger constitutes; plunger places in the pump barrel; leave the gap between pump barrel and plunger; standing valve is equipped with in the pump barrel bottom; plunger is by last valve bonnet; last protecting jacket; bushing pipe; following box cupling; traveling valve in plunger closed cage and the plunger; valve is sat and the plunger lower contact connects and composes from top to bottom successively; it is characterized in that perforate on the bushing pipe of plunger; on the outer wall of bushing pipe tapping; install packing element additional; the sulfuration of packing element two ends hangs up at packing element; packing element is hung and is linked to each other with following box cupling with the last protecting jacket of plunger respectively, installs seal ring additional in bushing pipe tapping packing element extension and bushing pipe joint up and down.
Above-mentioned soft sealing plunger oil well pump, the last valve bonnet of its plunger upper part is threaded on the sucker rod by sucker rod.Gap between pump barrel and soft sealing plunger is big than the conventional plunger oil well pump, usually at 1 ~ 1.5 millimeter, therefore adds man-hour, and is relatively low to the inwall quality requirement of pump barrel, can be used to repair pump and overproof pump preferably.
The working principle of above-mentioned model utility is, when sucker rod drove the plunger down stroke, the standing valve of pump barrel bottom cut out, and the traveling valve in the plunger is opened, and the liquid in the pump barrel enters plunger; When sucker rod drove the plunger up stroke, the standing valve of pump barrel bottom was opened, and the traveling valve in the plunger cuts out, pressure acts on the glue bucket of plunger outer wall by perforate, packing element struts under pressure, forms sealing between plunger and pump barrel, and the liquid in the pit shaft is sucked and enters in the pump barrel.
Description of drawings:
The piston structure schematic representation of Fig. 1, soft sealing plunger oil well pump.
Among Fig. 1, last valve bonnet 1, upward protecting jacket 2, bushing pipe 3, packing element extension 4, packing element 5,12 times box cuplings 6 of perforate, plunger closed cage 7, traveling valve 8, valve seat 9, plunger lower contact 10.
Fig. 2, the upper and lower stroke work of soft sealing plunger oil well pump schematic representation.
Among Fig. 2, last valve bonnet 1, bushing pipe 3, sucker rod 11, pump barrel 13, perforate 12, plunger closed cage 7, traveling valve 8, standing valve 14, plunger 15.
Embodiment:
A kind of soft sealing plunger oil well pump is by pump barrel 13; plunger 15 constitutes; plunger 15 places in the pump barrel 13; 15 of pump barrel 13 and plungers leave the gap; standing valve 14 is equipped with in pump barrel 13 bottoms; plunger 15 is by last valve bonnet 1; last protecting jacket 2; bushing pipe 3; following box cupling 6; traveling valve 8 in plunger closed cage 7 and the plunger 15; valve seat 9 and plunger lower contact 10 connect and compose from top to bottom successively; it is characterized in that perforate 12 on the bushing pipe 3 of plunger 15; on the outer wall at bushing pipe perforate 12 places; install packing element 5 additional; the sulfuration of packing element 5 two ends is hung on 4 at packing element; packing element is hung 4 and is linked to each other with following box cupling 6 with the last protecting jacket 2 of plunger 15 respectively, and packing element extension 4 and bushing pipe 3 joints about at bushing pipe 3 perforates 12 places install seal ring additional.
The working principle of above-mentioned model utility is, when sucker rod 11 drove plungers 15 down strokes, the standing valve 14 of pump barrel 13 bottoms cut out, and the traveling valves 8 in the plunger 15 are opened, and the liquid in the pump barrel 13 enter plunger 15; When sucker rod 11 drives plunger 15 up strokes, the standing valve 14 of pump barrel 13 bottoms is opened, traveling valve 8 in the plunger 15 cuts out, pressure acts on the glue bucket 5 of plunger outer wall by perforate 12, packing element 5 struts under pressure, 12 of plunger 15 and pump barrels form sealing, and the liquid in the pit shaft is sucked and enters in the pump barrel 12.
Claims (2)
1; a kind of soft sealing plunger oil well pump is by pump barrel (13); plunger (15) constitutes; plunger (15) places in the pump barrel (13); leave the gap between pump barrel (13) and plunger (15); standing valve (14) is equipped with in pump barrel (13) bottom; plunger (15) is by last valve bonnet (1); last protecting jacket (2); bushing pipe (3); following box cupling (6); traveling valve (8) in plunger closed cage (7) and the plunger (15); valve is sat (9) and plunger lower contact (10) connects and composes from top to bottom successively; it is characterized in that going up perforate (12) at the bushing pipe (3) of plunger (15); on the outer wall that bushing pipe perforate (12) is located; install packing element (5) additional; the sulfuration of packing element (5) two ends is hung on (4) at packing element; packing element is hung (4) and is linked to each other with following box cupling (6) with the last protecting jacket (2) of plunger (15) respectively, and packing element extension (4) and bushing pipe (3) joint located up and down in bushing pipe (3) perforate (12) install seal ring additional.
2, a kind of soft sealing plunger oil well pump as claimed in claim 1 is characterized in that leaving the gap between pump barrel (13) and plunger, and its gap size is at 1 to 1.5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03266187 CN2693987Y (en) | 2003-06-27 | 2003-06-27 | Oil pump with soft sealing plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03266187 CN2693987Y (en) | 2003-06-27 | 2003-06-27 | Oil pump with soft sealing plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2693987Y true CN2693987Y (en) | 2005-04-20 |
Family
ID=34755532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03266187 Expired - Fee Related CN2693987Y (en) | 2003-06-27 | 2003-06-27 | Oil pump with soft sealing plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2693987Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649828B (en) * | 2009-08-19 | 2011-03-23 | 杨永利 | Advanced ceramic pipe type defueling pump |
| CN110700796A (en) * | 2019-09-17 | 2020-01-17 | 大庆市汇成科技开发有限公司 | Intelligent carbon fiber continuous flexible sucker rod long-stroke large-pump deep pumping oil production system |
-
2003
- 2003-06-27 CN CN 03266187 patent/CN2693987Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649828B (en) * | 2009-08-19 | 2011-03-23 | 杨永利 | Advanced ceramic pipe type defueling pump |
| CN110700796A (en) * | 2019-09-17 | 2020-01-17 | 大庆市汇成科技开发有限公司 | Intelligent carbon fiber continuous flexible sucker rod long-stroke large-pump deep pumping oil production system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2467875C (en) | Method and apparatus using traction seal fluid displacement device for pumping wells | |
| CN2693987Y (en) | Oil pump with soft sealing plunger | |
| CN201184171Y (en) | Bias-wearing-proof pumping unit | |
| CN103015938A (en) | Intelligent hydraulic wellhead sealer | |
| CN2282058Y (en) | Hydraulic back-off sub | |
| CN206376845U (en) | A kind of steam drives producing well lifting arm tubing string | |
| CN2295062Y (en) | Oil-pump well oil-adding pump | |
| CN2854066Y (en) | Pressure non-return gate gurgle valve | |
| CN2711956Y (en) | Hydraulic conveyer for cable | |
| CN2851643Y (en) | Sand setting primary pipe column pump | |
| CN2866900Y (en) | Efficient energy-saving rod oil-well pump | |
| CN2797618Y (en) | Wellhead sealing device for single crank, double-stroke and flexible rope type oil sucking system | |
| CN2804433Y (en) | Soft sealed telescopiform, anti-eccentric grinding high viscosity oil pump | |
| CN2849231Y (en) | Oil lubricating anti offset wear roofbolt | |
| CN220134166U (en) | Underground dynamic sealing device of long-stroke pumping unit | |
| CN2572035Y (en) | Three-cylinder single action plunger pump | |
| CN2758522Y (en) | Boosting pump for hydraulic starting thick oil | |
| CN2693991Y (en) | Large path thick oil pump | |
| CN101550813B (en) | Low-level seal assembly in wellhead | |
| CN2815625Y (en) | Polish rod sealer sealing member detaching device | |
| CN201531397U (en) | Movable cylinder high-efficiency tubular oil pump | |
| CN1896516A (en) | Efficient reversed beam-pumping unit | |
| RU2433304C1 (en) | Well sucker-rod pump | |
| CN2677662Y (en) | Pumping hydraulic sand washing apparatus | |
| CN2615329Y (en) | Pumping well head apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: XINSHIJI MACHINERY MANUFACTURING CO., LTD., DAGANG OIL FIELD GROUP Owner name: CNPC BOHAI PETROLEUM EQUIPMENT MANUFACTURING CO., Free format text: FORMER OWNER: DAGANG OIL FIELD GROUP CO., LTD. Effective date: 20100906 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300280 MINISTRY OF SCIENCE AND TECHNOLOGY DEVELOPMENT, DAGANG OILFIELD GROUP CO., LTD., DAGANG DISTRICT, TIANJIN CITY TO: 300280 CHUANGANG ROAD, DAGANG OILFIELD, DAGANG DISTRICT, TIANJIN CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100906 Address after: 300280 Tianjin City, Grand Port Dagang Oilfield Sichuan Road Patentee after: CNPC Bohai Equipment Manufacturing Co., Ltd. Address before: 300280 science and technology development department, Dagang Oilfield Group Company, Tianjin, Grand Port Co-patentee before: Xinshiji Machinery Building Co., Ltd., Dagang Oil Field Group Patentee before: Dagang Oil Field Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050420 Termination date: 20120627 |