CN201180636Y - Numerical control reciprocating type oil-submersible motor driven oil pump - Google Patents
Numerical control reciprocating type oil-submersible motor driven oil pump Download PDFInfo
- Publication number
- CN201180636Y CN201180636Y CNU2008200104867U CN200820010486U CN201180636Y CN 201180636 Y CN201180636 Y CN 201180636Y CN U2008200104867 U CNU2008200104867 U CN U2008200104867U CN 200820010486 U CN200820010486 U CN 200820010486U CN 201180636 Y CN201180636 Y CN 201180636Y
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- pump
- oil
- movable
- plunger piston
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- Electromagnetic Pumps, Or The Like (AREA)
Abstract
The utility model relates to an oil-well pump driven by a numerical control reciprocating type submersible motor, which consists of a joint hoop, an upper fixed valve, a lower fixed valve, a big fixed plunger piston, a small fixed plunger piston, a movable pump barrel, a pump shell, a rotor mandrel, a stator upper-contact and a stator. The upper end of the stator is connected with the stator upper-contact through screw threads; the stator upper-contact is connected with the lower end of the pump shell through screw threads; the upper end of the pump shell is connected with an upper joint hoop; the rotor mandrel is arranged in the pump shell and the stator; the upper end of the rotor mandrel is connected with the movable pump barrel through screw threads; the small fixed plunger piston and the big fixed plunger piston which are connected up and down are arranged inside the movable pump barrel; the lower fixed valve and the upper fixed valve are respectively arranged inside the big fixed plunger piston and a joint hoop chamber. The numerical control reciprocating type oil-well pump has reasonable design, novel structure and reliable operation; the oil-well pump is in a suction state when the movable pump barrel moves upwards instead of an oil-discharge state, thereby facilitating the protection of the magnetic material of a rotor of the submersible motor from being influenced by high-loading alternating overburden, prolonging the service life of the motor, and ensuring the normal production of an oil-well.
Description
Technical field:
The utility model relates to a kind of downhole hardware that is used for oil well production, belongs to oil recovery machiner device class.
Background technique:
Oil well pump is the important downhole hardware of oil well production, use the oil well pump of maximum beam pumping units except that routine, chain type oil pump driving at the scene at present, the centrifugal submersible electric pump that some Oilfield using is driven by oil-submersible motor, these each tool pluses and minuses of oil well pump oil recovery mode of production.Along with the development of oil field development and oil recovery machiner technology, released a kind of numerically controlled reciprocating submersible pump (seeing Chinese invention patent ZL2004100504315) in recent years.This kind submersible electric pump is the numerically controlled reciprocating structure, form by power plant, oil well pump and balance screen casing, the online random adjustment parameter of energy, save pumping unit and sucker rod, its oil well pump structure shows as with the oil immersion line motor mover supporting, when plunger is up, the standing valve at top is opened, be in the oil extraction state, its shortcoming is that oil-submersible motor mover magnetic material bears high load alternation ballast for a long time, influences oil-submersible motor working life.
The model utility content:
The purpose of this utility model is to provide a kind of oil-submersible motor mover magnetic material that can make not to be subjected to time alternation ballast, thus the oil well pump that the numerically controlled reciprocating oil-submersible motor that oil-submersible motor working life was not damaged, was prolonged to the protection magnetic material drives.
The utility model is to realize like this.This kind oil well pump is made up of box cupling, upper and lower standing valve, large and small non-movable piston, movable pump barrel, pump case, mover mandrel, stator upper connection and stator, the stator upper end is with the stator upper connection that has been threaded, the stator upper connection is connected with the pump case lower end with screw thread, and the pump case upper end is connected with last box cupling; Be provided with the mover mandrel in pump case and the stator, mover mandrel upper end is connected with movable pump barrel with screw thread, be provided with the little non-movable piston and the big non-movable piston that are connected up and down in the movable pump barrel, be respectively equipped with down standing valve and last standing valve in big non-movable piston and the box cupling chamber.During use, the box cupling on this oil well pump top is connected with the oil well oil conduit post, stator is connected with ground control unit by cable.During work, power by the ground control unit preset sequence, make stator produce moving magnetic field, stator field and mover magnetic field produce electromagnetic actuation force, drive the upper and lower motion of mover, and mover mandrel and movable pump barrel join, and dock with plunger piston assembly, thereby realize moving back and forth, crude oil is lifted to ground by oil pipe through movable pump barrel and plunger piston assembly routing motion by given speed and program.When the movable pump barrel of oil well pump is up, the space of movable pump barrel top and fixedly small plunger formation increases, produce negative pressure, at this moment, following standing valve lifts, last standing valve is closed, the crude oil in the pit shaft through pump case lower hole, movable pump barrel lower hole, down standing valve and seat the gap, fix big plunger and fixedly between small plunger the hole enter its space, finish the suction condition of oil well pump; When the movable pump barrel of oil well pump was descending, the space of movable pump barrel top and fixedly small plunger formation reduced, and pressure increases, at this moment, following standing valve is closed, and last standing valve is opened, crude oil is squeezed into standing valve top, goes up standing valve when descending and closes when finishing, and finishes a suction cycle.
The utility model is reasonable in design; novel structure; reliable operation; the movable pump barrel of this kind oil well pump is in suction condition when up; rather than be in the oil extraction state; thereby help protecting the magnetic material of oil-submersible motor mover not influenced by high load alternation ballast, can prolong motor working life and oil well ordinary production.
Description of drawings:
Accompanying drawing is a general structure schematic representation of the present utility model.
Embodiment:
As shown in the figure, the utility model is by box cupling 1, last standing valve 2, little non-movable piston 3, big non-movable piston 4, following standing valve 5, movable pump barrel 6, pump case 7, mover mandrel 8, stator upper connection 9 and stator 10 are formed, its relation of assembling is as follows: stator 10 upper ends are with the stator upper connection 9 that has been threaded, stator upper connection 9 is connected with pump case 7 lower ends with screw thread, pump case 7 upper ends are connected with last box cupling 1, be provided with mover mandrel 8 in pump case 7 and the stator, mover mandrel 8 upper ends are connected with movable pump barrel 6 with screw thread, be provided with the little non-movable piston 3 and the big non-movable piston 4 that are connected up and down in the movable pump barrel 6, be respectively equipped with down standing valve 5 and last standing valve 2 in big non-movable piston 4 and box cupling 1 chamber.Wherein, stator 10 is made up of housing and a plurality of electromagnetic coils that set within it, and is existing finished parts, and its upper end is connected with ground control unit by cable.Movable pump barrel 6 lower end diameter are less and be provided with the internal thread that is complementary with mover mandrel 3, and upper end and little non-movable piston 3 constitute sealing.Little non-movable piston 3 is made one with the big non-movable piston 4 of its below, is evenly equipped with oil outlet on the transition conical surface sidewall therebetween, and big non-movable piston 4 lower sides are provided with oil inlet hole, and the lower end is provided with seat and puts down standing valve 5 and use valve seat.Pump case 7 is provided with the screen casing of eyelet for the bottom.
Claims (1)
1, the oil well pump that a kind of numerically controlled reciprocating oil-submersible motor drives, by box cupling (1), last standing valve (2), little non-movable piston (3), big non-movable piston (4), following standing valve (5), movable pump barrel (6), pump case (7), mover mandrel (8), stator upper connection (9) and stator (10) are formed, its sign is: stator (10) upper end is with the stator upper connection (9) that has been threaded, stator upper connection (9) is connected with pump case (7) lower end with screw thread, pump case (7) upper end is connected with last box cupling (1), be provided with mover mandrel (8) in pump case (7) and the stator, mover mandrel (8) upper end is connected with movable pump barrel (6) with screw thread, be provided with the little non-movable piston (3) and the big non-movable piston (4) that are connected up and down in the movable pump barrel (6), be respectively equipped with down standing valve (5) and last standing valve (2) in big non-movable piston (4) and box cupling (1) chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200104867U CN201180636Y (en) | 2008-01-25 | 2008-01-25 | Numerical control reciprocating type oil-submersible motor driven oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200104867U CN201180636Y (en) | 2008-01-25 | 2008-01-25 | Numerical control reciprocating type oil-submersible motor driven oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180636Y true CN201180636Y (en) | 2009-01-14 |
Family
ID=40250137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200104867U Expired - Fee Related CN201180636Y (en) | 2008-01-25 | 2008-01-25 | Numerical control reciprocating type oil-submersible motor driven oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180636Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865055A (en) * | 2012-11-06 | 2013-01-09 | 陈天为 | Underground linear pumping unit |
| CN104632139A (en) * | 2013-11-13 | 2015-05-20 | 中国石油天然气股份有限公司 | Rodless oil extraction device driven by underground permanent magnet linear motor |
| WO2015096085A1 (en) * | 2013-12-26 | 2015-07-02 | 深圳市大族激光科技股份有限公司 | Oil-submersible linear motor oil extraction system |
| CN110318991A (en) * | 2019-07-23 | 2019-10-11 | 西安诺基石油技术有限公司 | A kind of fine and close oil production pump |
| US11466548B2 (en) | 2020-06-05 | 2022-10-11 | Saudi Arabian Oil Company | Downhole linear pump system |
-
2008
- 2008-01-25 CN CNU2008200104867U patent/CN201180636Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865055A (en) * | 2012-11-06 | 2013-01-09 | 陈天为 | Underground linear pumping unit |
| CN104632139A (en) * | 2013-11-13 | 2015-05-20 | 中国石油天然气股份有限公司 | Rodless oil extraction device driven by underground permanent magnet linear motor |
| WO2015096085A1 (en) * | 2013-12-26 | 2015-07-02 | 深圳市大族激光科技股份有限公司 | Oil-submersible linear motor oil extraction system |
| CN110318991A (en) * | 2019-07-23 | 2019-10-11 | 西安诺基石油技术有限公司 | A kind of fine and close oil production pump |
| CN110318991B (en) * | 2019-07-23 | 2023-12-19 | 西安诺基石油技术有限公司 | Compact oil production pump |
| US11466548B2 (en) | 2020-06-05 | 2022-10-11 | Saudi Arabian Oil Company | Downhole linear pump system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20150125 |
|
| EXPY | Termination of patent right or utility model |