CN205135960U - Machinery double cassette rod -type oil -well pump - Google Patents
Machinery double cassette rod -type oil -well pump Download PDFInfo
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- CN205135960U CN205135960U CN201520864804.6U CN201520864804U CN205135960U CN 205135960 U CN205135960 U CN 205135960U CN 201520864804 U CN201520864804 U CN 201520864804U CN 205135960 U CN205135960 U CN 205135960U
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- pump barrel
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Abstract
The utility model provides a machinery double cassette rod -type oil -well pump. The utility model discloses a pump barrel assembly, plunger assembly, sealing device, plunger assembly are reciprocating motion along the pump barrel under the drive of sucker rod, the plunger assembly is located the pump barrel assembly, and the lower extreme of pump barrel assembly is installed machinery and is supported sealing device, ejector pin I, spring I are installed to the valve ball top of plunger assembly lower extreme plunger valve, spring I is located rights cover I, and spacing by the interior boss of rightting cover I, install in the uide bushing of pump barrel assembly upper end and keep off the sand device, ejector pin II, spring II are installed to the valve ball top of pump barrel assembly lower extreme standing valve, spring II is located rights cover II, and spacing by the interior boss of rightting cover II. The beneficial effects are that it is rational in infrastructure, be convenient for make, the sealed slider of sand is kept off and the sand card can be effectively prevented, closing device is forced in plunger valve, standing valve installation, helps the valve ball in time to close in the inclined shaft, improves the life of oil -well pump, reaches the purpose that improves the efficiency of gathering.
Description
Technical field
The utility model relates to a kind of downhole pump recovered the oil, and especially relates to a kind of mechanical double card rod-type pumping unit.
Background technique
Oil well pump is the capital equipment in oil pumping system, is carried out the pumping of liquid in oil well by the power of pumping unit, sucker rod transmission, and oil well pump is the critical component determining oil rig technical-economic index.
In conventional straight well recovers the oil, the general rod-type pumping unit that uses recovers the oil, and along with the continuous expansion application of inclined shaft technology, inclined shaft oil recovery technique is had higher requirement to rod-type pumping unit Lifting Technique.The rod-type pumping unit that conventional straight well uses in recovering the oil, traveling valve wherein, standing valve are by well hydraulic coupling and the GRAVITY CONTROL valve ball of valve ball self, the open and close of valve seat, are suitable for straight well and recover the oil.But in inclined shaft oil recovery process, because well bore is skewed, gravitational direction and the pit shaft direction of valve ball self are inconsistent, the partical gravity of valve ball on pit shaft direction is diminished, ball valve is closed can not as so fast in straight well, valve ball, valve seat are opened and are relatively lagged behind, and cause the efficiency of oil well pump to reduce, have a strong impact on the Liquid output of oil well.
Model utility content
In order to overcome valve ball that existing sucker rod pump exists in inclined shaft oil recovery process, valve seat opens delayed, and cause the efficiency of oil well pump to reduce, have a strong impact on the deficiency of oilwell produced fluid amount, the utility model provides a kind of mechanical double card rod-type pumping unit.
The utility model solves the technological scheme that its technical problem adopts: mechanical double card rod-type pumping unit comprises pump barrel assembly, plunger piston assembly, seal arrangement, and plunger piston assembly moves reciprocatingly along pump barrel under the driving of sucker rod; Plunger piston assembly is positioned at pump barrel assembly, and the lower end of pump barrel assembly is provided with mechanical support seal arrangement.
Push rod I, spring I are installed above the valve ball of plunger piston assembly lower end plunger valve; Spring I is positioned at supporting positive cover I, and spacing by the inner convex platform of supporting positive cover I.In the guide sleeve of pump barrel assembly upper end portion, sand-baffling device is installed; Above the valve ball of pump barrel assembly lower end standing valve, push rod II, spring II are installed; Spring II is positioned at supporting positive cover II, and spacing by the inner convex platform of supporting positive cover II.
The valve rod of plunger piston assembly, traveling valve, plunger, supporting positive cover I, plunger valve, bearing pipe close are from top to bottom fixedly connected sequentially; The upper end of valve rod is fixedly connected with sucker rod by joint.
The guide sleeve of pump barrel assembly, sand-baffling device, pump barrel upper connection, pump barrel, supporting positive cover II, standing valve, pump barrel lower contact are from top to bottom fixedly connected sequentially.Sand-baffling device comprises sand block seat and sand block slide block, and sand block seat is fixedly mounted between guide sleeve inner convex platform and pump barrel upper connection, is positioned at the valve stem slides of the sand block slide block above sand block seat along plunger piston assembly.
The sealing drum lower end of mechanical support seal arrangement is fixedly connected with SEALING FITTING, and sealing drum upper end is fixedly connected with pump barrel box cupling.The packed-piston of mechanical support seal arrangement, lock-on connection, support mandrel are from top to bottom fixedly connected sequentially, and packed-piston upper end is fixedly connected with the pump barrel lower contact of pump barrel assembly.Packed-piston is arranged in sealing drum, below lock-on connection and SEALING FITTING inner convex platform, be provided with sealing copper sheathing between support mandrel outer lug boss.The sealing outer conical surface of copper sheathing lower end and the circular cone inner hole of SEALING FITTING.
The beneficial effects of the utility model are, rational in infrastructure, are convenient to manufacture, sand block sealing slide block can effectively prevent sand card, and forced closed device installed by plunger valve, standing valve, contributes to valve ball and close in time in inclined shaft, improve the working life of oil well pump, reach the object improving harvest efficiency.
Accompanying drawing explanation
Fig. 1 is the utility model machinery double card rod-type pumping unit superstructure schematic diagram.
Fig. 2 is the utility model machinery double card rod-type pumping unit substructure schematic diagram.
In figure: 1. joint, 2. valve rod, 3. guide sleeve, 4. sand block slide block, 5. sand block seat, 6. pump barrel upper connection, 7. valve bonnet, 8. traveling valve, 9. valve seat, 10. pump barrel, 11. plungers, 12. supporting positive covers I, 13. spring I, 14. push rod I, 15. plunger valves, 16. bearing pipe closes, 17. spring II, 18. supporting positive covers II, 19. push rod II, 20. valve bonnets, 21. standing valves, 22. valve seats, 23. pump barrel lower contacts, 24. pump barrel box cuplings, 25. packed-pistons, 26. sealing drums, 27. lock-on connections, 28. SEALING FITTING, 29. sealing copper sheathings, 30. support mandrel.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.But those skilled in the art should know, the invention is not restricted to listed embodiment, as long as spirit according to the invention, all should be included in protection scope of the present invention.
See accompanying drawing 1-2.The utility model machinery double card rod-type pumping unit comprises pump barrel assembly, plunger piston assembly, seal arrangement, and plunger piston assembly is positioned at pump barrel assembly, and the lower end of pump barrel assembly is provided with mechanical support seal arrangement; Plunger piston assembly moves reciprocatingly along pump barrel under the driving of sucker rod.
The valve rod 2 of plunger piston assembly, traveling valve 8, plunger 11, supporting positive cover I 12, plunger valve 15, bearing pipe close 16 are from top to bottom fixedly connected sequentially; The upper end of valve rod 2 is fixedly connected with sucker rod by joint 1.Valve bonnet 7 upper end of traveling valve 8 is fixedly connected with valve rod 2, and lower end is fixedly connected with plunger 11, and the valve seat 9 of traveling valve 8 is fixedly mounted on valve bonnet 7 inner convex platform and plunger 11 upper end.Push rod I 14, spring I 13 are installed above the valve ball of plunger piston assembly lower end plunger valve 15; Spring I 13 is positioned at supporting positive cover I 12, and spacing by the inner convex platform of supporting positive cover I 12.
The guide sleeve 3 of pump barrel assembly, sand-baffling device, pump barrel upper connection 6, pump barrel 10, supporting positive cover II 18, standing valve 21, pump barrel lower contact 23 are from top to bottom fixedly connected sequentially.In the guide sleeve of pump barrel assembly upper end portion, sand-baffling device is installed, sand-baffling device comprises sand block seat 5 and sand block slide block 4, sand block seat 5 is fixedly mounted between guide sleeve 3 inner convex platform and pump barrel upper connection 6, the sand block slide block 4 be positioned at above sand block seat 5 can along the valve stem slides of plunger piston assembly, prevent the grains of sand in well liquid from entering in pump barrel, effectively prevent sand card.The valve seat 22 of pump barrel assembly lower end standing valve 21 is arranged between valve bonnet 20 inner convex platform and pump barrel lower contact 23, is provided with push rod II 19, spring II 17 above the valve ball of standing valve 21; Spring II 17 is positioned at supporting positive cover II 18, and spacing by the inner convex platform of supporting positive cover II 18.
The forced closed device be made up of spring II and push rod installed by the plunger valve 15 of plunger piston assembly and the standing valve 21 of pump barrel assembly above valve ball, valve ball is had and closes feature rapidly, at inclined shaft, gas lock or when containing sand, contribute to valve ball to close in time, improve the working life of oil well pump.
Sealing drum 26 lower end of mechanical support seal arrangement is fixedly connected with SEALING FITTING 28, and upper end is fixedly connected with pump barrel box cupling 24.The packed-piston 25 of mechanical support seal arrangement, lock-on connection 27, support mandrel 30 are from top to bottom fixedly connected sequentially, and packed-piston 25 upper end is fixedly connected with the pump barrel lower contact 23 of pump barrel assembly; Packed-piston 25 is arranged in sealing drum 26, below lock-on connection 27 and SEALING FITTING 28 inner convex platform, be provided with between support mandrel 30 outer lug boss and seal copper sheathing 29, the sealing copper sheathing 29 lower end cylindrical circle of position conical surface, the circular cone inner hole of its conical surface and SEALING FITTING 28, realizes radial seal.
The utility model adopts mechanical double card sucker rod pump structure, and forced closed device in piston valve, standing valve are installed, ensures that in inclined shaft valve ball falls closedown after rise in time, improves pump efficiency, is applicable to High angle well recovery and produces; Guide sleeve seals slide block built with sand block, can prevent sand card, gas lock when down stroke, improves the working life of oil well pump; On carry rod string and the pump housing can be proposed oil pipe, meet into liner oil pipe and testing requirement, realize the object improving harvest efficiency.
It should be noted that above-described embodiment is example and unrestricted the present invention, those skilled in the art can design a lot of alternate embodiment and not depart from the right of this patent.
Claims (6)
1. a mechanical double card rod-type pumping unit, comprises pump barrel assembly, plunger piston assembly, seal arrangement, and plunger piston assembly moves reciprocatingly along pump barrel under the driving of sucker rod, it is characterized in that:
Described plunger piston assembly is positioned at pump barrel assembly, and the lower end of pump barrel assembly is provided with mechanical support seal arrangement;
Push rod I (14), spring I (13) are installed above the valve ball of described plunger piston assembly lower end plunger valve (15); Described spring I (13) is positioned at supporting positive cover I (12), and spacing by the inner convex platform of supporting positive cover I (12);
In the guide sleeve (3) of described pump barrel assembly upper end portion, sand-baffling device is installed; Push rod II (19), spring II (17) are installed above the valve ball of described pump barrel assembly lower end standing valve (21); Described spring II (17) is positioned at supporting positive cover II (18), and spacing by the inner convex platform of supporting positive cover II (18).
2. mechanical double card rod-type pumping unit according to claim 1, is characterized in that: the valve rod (2) of described plunger piston assembly, traveling valve (8), plunger (11), supporting positive cover I (12), plunger valve (15), bearing pipe close (16) are from top to bottom fixedly connected sequentially; The upper end of described valve rod (2) is fixedly connected with sucker rod by joint (1).
3. mechanical double card rod-type pumping unit according to claim 1, is characterized in that: the guide sleeve (3) of described pump barrel assembly, sand-baffling device, pump barrel upper connection (6), pump barrel (10), supporting positive cover II (18), standing valve (21), pump barrel lower contact (23) are from top to bottom fixedly connected sequentially.
4. mechanical double card rod-type pumping unit according to claim 3, it is characterized in that: described sand-baffling device comprises sand block seat (5) and sand block slide block (4), described sand block seat (5) is fixedly mounted between guide sleeve (3) inner convex platform and pump barrel upper connection (6), and the sand block slide block (4) being positioned at sand block seat (5) top slides along the valve rod (2) of described plunger piston assembly.
5. mechanical double card rod-type pumping unit according to claim 1, is characterized in that: sealing drum (26) lower end of described mechanical support seal arrangement is fixedly connected with SEALING FITTING (28), and sealing drum (26) upper end is fixedly connected with pump barrel box cupling (24);
The packed-piston (25) of described mechanical support seal arrangement, lock-on connection (27), support mandrel (30) are from top to bottom fixedly connected sequentially, and packed-piston (25) upper end is fixedly connected with the pump barrel lower contact (23) of described pump barrel assembly;
Described packed-piston (25) is arranged in sealing drum (26), described lock-on connection (27) below and SEALING FITTING (28) inner convex platform, is provided with between support mandrel (30) outer lug boss and seals copper sheathing (29).
6. mechanical double card rod-type pumping unit according to claim 5, is characterized in that: the described outer conical surface of sealing copper sheathing (29) lower end and the circular cone inner hole of described SEALING FITTING (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864804.6U CN205135960U (en) | 2015-11-03 | 2015-11-03 | Machinery double cassette rod -type oil -well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864804.6U CN205135960U (en) | 2015-11-03 | 2015-11-03 | Machinery double cassette rod -type oil -well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135960U true CN205135960U (en) | 2016-04-06 |
Family
ID=55621759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520864804.6U Active CN205135960U (en) | 2015-11-03 | 2015-11-03 | Machinery double cassette rod -type oil -well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135960U (en) |
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2015
- 2015-11-03 CN CN201520864804.6U patent/CN205135960U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201103 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee after: BOHAI PETROLEUM EQUIPMENT (TIANJIN) NEW CENTURY MACHINERY MANUFACTURING Co.,Ltd. Address before: 300280 Dagang Road, Dagang oil field, Tianjin, Tianjin Patentee before: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee before: BOHAI PETROLEUM EQUIPMENT (TIANJIN) NEW CENTURY MACHINERY MANUFACTURING Co.,Ltd. |
|
| TR01 | Transfer of patent right |