CN203702513U - Self-circulationhydraulic driveoil recovery pump - Google Patents
Self-circulationhydraulic driveoil recovery pump Download PDFInfo
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- CN203702513U CN203702513U CN201320701873.6U CN201320701873U CN203702513U CN 203702513 U CN203702513 U CN 203702513U CN 201320701873 U CN201320701873 U CN 201320701873U CN 203702513 U CN203702513 U CN 203702513U
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Abstract
The utility model relates to a self-circulation hydraulic drive oil recovery pump which comprises an oilwell sleeve pipe, a hydrodynamic liquid pipe, an oil recovery pump, a packer, a hydrodynamic liquid pump station and a hydrodynamic liquid recovery processing device. The self-circulation hydraulic drive oil recovery pump provided by the utility model adopts rodless oil recovery, self-circulation hydraulic drive and spring energy storage to achieve valve core linked reversing, so as to enable the upper and the lower cavities of the oil recovery pump to breathe and recovery oil in a reciprocating manner, therefore, the technical defect that a traditional oil recovery way is only suitable for vertical oilwell oil recovery can be overcome, the self-circulation hydraulic drive oil recovery pump is suitable for underground oil recovery and cluster oil recovery to all non perpendicular oilwells, and has the advantages of good universality, strong adaptability,small abrasion, long service life, energy conservation, electricity conservation and land conservation; raw oil recovered is taken as a hydrodynamic liquid and input into the hydrodynamic liquid pump station through the hydrodynamic liquid recovery processing device, so as to enable the raw oil to change into pressure liquid to drive the oil recovery pump to recover raw oil, therefore, the hydrodynamic liquid cost is lowered; maintenance to oil recovery pump is improved by back washing, large-scale maintenance equipment is not required, the maintenance time is short, labor using is less, and manual labor and physical resources are saved.
Description
Technical field
The utility model relates to the oil extraction pump using in a kind of oil recovery well, relates in particular to one and is suitable for the oil extraction pump, particularly this oil recovery pump structure that in horizontal well, inclined shaft, " S " type well, use, belongs to petroleum equipment design and manufacturing technology field.
Background technique
Existing oil extraction in oil field mode has two kinds conventionally, and one is that flowing well recovers the oil, and another kind is artificial oil recovery.Flowing well recovers the oil and utilizes high formation pressure that fluid is sprayed onto to ground certainly, belongs to high-yield well; Artificial oil recovery is modal to be had: 1, suspension beam type oil pumping unit mechanical oil recovery; 2, screw pump oil production; 3, electric submersible pumping.Mechanical oil recovery is only applicable to peupendicular hole, but in recent years along with oil field resource environment and geology and geomorphology impact, peupendicular hole can not meet the needs of oil field present situation, and therefore new well type constantly occurs, such as: horizontal well, inclined shaft, " S " type well etc.And conventional oil production method not can meet the oil recovery condition of new well type, wherein the oil recovery of suspension beam type oil pumping unit can cause sucker rod in horizontal well, inclined shaft and " S " type well, to occur serious eccentric wear phenomenon; Screw pump oil production, its stator life-span is short, inspection pump often, oil recovery efficiency is low; Electric submersible pumping can only be used for shallow well and recover the oil, and the operation cycle is short, linear electric motor can only be in the hot environment of underground 120oC one or two month of continuous operation.The operation cycle of these several oil production methods all maintains less than the maintain and replace that will stop production half a year, each maintenance cost is all up to 10～200,000 yuan, also need to utilize numerous major repair equipment that the oil pipe of upper km is extracted out to carry pump maintain and replace, the time spending is at least at ten more than Working day, not only impact is produced, and expends a large amount of manpowers, financial resources.Therefore find a kind of new oil production method, need with the oil recovery of adaptation level well, inclined shaft and " S " type well, become the task of top priority.
Summary of the invention
The purpose of this utility model is to provide a kind of self-loopa liquid to drive oil extraction pump, to meet the oil recovery needs of peupendicular hole, horizontal well, inclined shaft, " S " type well simultaneously.
To achieve these goals, the utility model Bian gets following technological scheme and implements: a kind of self-loopa liquid drives oil extraction pump, comprise oil well casing, power fluid pipe, oil extraction pump, packet and power fluid pumping plant and power fluid recycling and processing device, power fluid pipe is inserted in oil well casing; Pump case upper end in oil extraction pump is connected with the lower end of power fluid pipe, and it is inserted in down-hole and by packet and fixes, thereby forms the annular oil recovery passage between oil well casing and oil extraction pump and power fluid pipe; Oil extraction pump comprises a pump case, two pump barrels, a piston, two imbibition one-way valves, two fluid one-way valves and a reversing valve complement, and wherein reversing valve complement comprises again a valve body, a feed liquor spool and a fluid spool; Power fluid pumping plant feeds power fluid by power fluid pipe in oil extraction pump; Power fluid recycling and processing device, to power fluid pumping plant input power liquid, is characterized in that:
The two ends of described valve body connect respectively a pump barrel, be inserted in pump case, and formation are sealed and matched after formation entirety;
Described piston is the double-head piston of dumbbell-like shape, double-head piston external diameter difference Spielpassung is in the pump barrel at valve body two ends, and pump barrel is separated into epicoele and the cavity of resorption of oil extraction pump, piston rod in double-head piston coordinates with the interporal lacuna of valve body central part, and forms the upper and lower working room between the inner and the valve body two ends of double-head piston;
A described imbibition one-way valve and a fluid one-way valve are arranged in the epicoele of oil extraction pump, another imbibition one-way valve and another fluid one-way valve are arranged in the cavity of resorption of oil extraction pump, wherein the entrance of two imbibition one-way valves communicates with oil well respectively, outlet communicates with epicoele and cavity of resorption respectively, the entrance of fluid one-way valve communicates with epicoele and cavity of resorption respectively, outlet communicates with the annular oil recovery passage in oil well casing, makes thus epicoele and cavity of resorption form respiratory cavity;
Described feed liquor spool with fluid spool Spielpassung in valve body and the form that is parallel and is symmetrical in piston rod axis be arranged on the both sides of piston rod, and the upper and lower end of two spools is fixedly connected to form interlock entirety by spool push pedal respectively;
Described feed liquor spool is provided with two feed liquor paths, and fluid spool is provided with two fluid paths;
Between described spool push pedal and the inner of double-head piston, be respectively equipped with an energy storage spring;
The wall portion of described valve body is provided with two inlet openings and two liquid outlet openings;
On described valve body two inlet openings wherein one communicate with the feed liquor path on feed liquor spool and form the feed liquor runner of inlet opening to Huo Xia working room of upper working room, on valve body, wherein the Huo Shang working room of lower working room that communicates with the fluid path on fluid spool and form is to the fluid runner of liquid outlet opening for two liquid outlet openings, and an inlet opening and a liquid outlet opening are in addition stopped up by the entity part on feed liquor spool and fluid spool respectively;
Described fluid spool is provided with two circular grooves between two fluid paths, the sectional shape of circular groove can be arc can be also trapezoidal;
Described valve body is wherein provided with symmetry two through holes perpendicular to liquid valve wire mandrel in the position in a circular groove radial center cross section with respect to fluid spool, and the rear portion of through hole is tapped hole;
In described two through holes, be equipped with respectively a steel ball, the rear portion of steel ball is equipped with stage clip, the rear portion of stage clip screws in tapped hole by screw stage clip is implemented precompressed and steel ball is embedded in the circular groove on fluid spool, thereby formation feed liquor spool and fluid spool are with respect to the elasticity location of valve body;
The wall portion of described pump case is provided with a shaft orientation flowing channel and two and radially goes out fluid through-hole, the upper end-hole of shaft orientation flowing channel communicates with power fluid pipe, the lower end mouth of shaft orientation flowing channel communicates with two inlet openings on valve body, two radially go out fluid through-hole one end communicates with two liquid outlet openings on valve body respectively, and the other end communicates with the annular oil recovery passage in oil well casing;
Described power fluid recycling and processing device is connected with the annular oil recovery passage in oil well casing by pipeline, and by filter using the well liquid gathering out as power fluid input power pump station.
Useful contribution of the present utility model is:
1, without the lifting of bar oil well, self-loopa hydraulic drive, spring energy-storage is realized liquid inlet and outlet spool interlock commutation, thereby make the upper and lower chamber of oil extraction pump back and forth breathe oil recovery, the down-hole oil production and the cluster that are applicable to all kinds of non-perpendicular oil wells recover the oil, versatility is good, strong adaptability, and little, the long working life that weares and teares, energy-conservation, economize on electricity, save land;
2, by power fluid recycling and processing device using the well liquid gathering out as power fluid input power pump station, thereby make well liquid become power fluid drive oil extraction pump gather crude oil, saved power fluid cost;
3, oppositely pressurize by annular oil recovery passage, directly recoil promotes oil extraction pump and realizes maintenance, and without major repair equipment, and engineering time is short, recruitment is few, saves man power and material.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is K-K cross section sectional structure enlarged view in accompanying drawing 1.
In attached Fig. 1 and 2: 1 oil well casing, 2 packets, 3 and 10 imbibition one-way valves, 4 and 9 fluid one-way valves, 5 pump cases, 6 valve bodies, 7 piston rods, 8 upper pistons, 8 ' lower piston, 11 power fluid pipes, 12 and 12 ' pump barrel, 13 and 13 ' energy storage spring, 14 and 14 ' spool push pedal, 15 fluid spools, 16 feed liquor spools, 17 power fluid recycling and processing devices, 18 filters, 19 power fluid pumping plants, 20 and 20 ' screw, 21 and 21 ' stage clip, 22 and 22 ' steel ball, A1 and A2 inlet opening, P1 and P2 liquid outlet opening, the upper working room of a, working room under b, c epicoele, d cavity of resorption, e annular oil recovery passage, f shaft orientation flowing channel.
Embodiment
As shown in Figure 1, when the utility model work, power fluid recycling and processing device 17 is sent into power fluid pumping plant 19 after the well liquid part collecting in interior oil well casing 1 annular oil recovery passage e is filtered by filter 18, power fluid pumping plant 19 by power fluid through power fluid pipe 11, shaft orientation flowing channel f in pump case 5, inlet opening A1 in oil extraction pump reversing valve complement on valve body 6, a feed liquor path on feed liquor spool 16 is input in valve body 6 upper ends and the inner upper a of working room forming of upper piston 8, thereby in a of Shi Shang working room, be full of power fluid and force by upper piston 8, the double-head piston that lower piston 8 ' and piston rod 7 form is up, then make energy storage spring 13 ' the pressurized energy storage between spool push pedal 14 ' and lower piston 8 '.Meanwhile, liquid outlet opening P2 on fluid path, valve body 6 by the well liquid in valve body 6 lower ends and the inner lower b of working room forming of lower piston 8 ' on fluid spool 15, the fluid through-hole that goes out of pump case 5 wall portions flow in the annular oil recovery passage e in oil well casing 1, form thus the oil hydraulic circuit between the upper a of working room and the lower b of working room.Under the effect of this oil hydraulic circuit, the imbibition one-way valve 3 in pump barrel 12 ' cavity of resorption d is opened, and fluid one-way valve 4 is closed, and is constantly full of well liquid in cavity of resorption d; Imbibition one-way valve 10 in pump barrel 12 epicoele c is closed, and fluid one-way valve 9 is opened, and the well liquid in epicoele c is pressed in the annular oil recovery passage e in oil well casing 1.When double-head piston continues up, the further pressurized energy storage of energy storage spring 13 ' while being able to overcome the precompression that is embedded in steel ball 22 and 22 ' rear portion stage clip 21 in fluid spool 15 circular grooves and 21 ', steel ball 22 and 22 ' skids off from circular groove, thereby the elasticity location between feed liquor spool 16 and fluid spool 15 and valve body 6 is thrown off, and feed liquor spool 16 and fluid spool 15 are moved along the elastic recovery force direction of energy storage spring 13 ', straight only steel ball 22 and 22 ' slips in another circular groove, make feed liquor spool 16 and fluid spool 15 again elasticity be positioned at and on the another location of valve body 6, realize commutation, the inlet opening A2 of power fluid after commutation on valve body 6, another feed liquor path on feed liquor spool 16 and being input in the inner lower b of working room forming of valve body 6 lower ends and lower piston 8 ', thereby in the b of Shi Xia working room, be full of power fluid and force by upper piston 8, the double-head piston that lower piston 8 ' and piston rod 7 form is descending, energy storage spring 13 pressurized energy storage in the upper a of working room.Meanwhile, liquid outlet opening P1 on another fluid path, the valve body 6 of well liquid in the upper a of working room being made up of valve body 6 upper ends and upper piston 8 the inners on fluid spool 14, the fluid through-hole that goes out of pump case 5 wall portions flow in the annular oil recovery passage e in oil well casing 1, form thus the oil hydraulic circuit between the lower b of working room and the upper a of working room.Under the effect of this oil hydraulic circuit, the imbibition one-way valve 10 in pump barrel 12 epicoele c is opened, and fluid one-way valve 9 is closed, and is constantly full of well liquid in epicoele c; Imbibition one-way valve 3 in pump barrel 12 ' cavity of resorption d is closed, and fluid one-way valve 4 is opened, and the well liquid in cavity of resorption d is pressed in the annular oil recovery passage e in oil well casing 1.When double-head piston continues descending, the further pressurized energy storage of energy storage spring 13 while being able to overcome the precompression that is embedded in steel ball 22 and 22 ' rear portion stage clip 21 in fluid spool 15 another circular grooves and 21 ', steel ball 22 and 22 ' skids off from another circular groove, thereby the elasticity location between feed liquor spool 16 and fluid spool 15 and valve body 6 is thrown off, and feed liquor spool 16 and fluid spool 15 are moved along the elastic recovery force direction of energy storage spring 13 ', straight only steel ball 22 and 22 ' slips in original circular groove, make feed liquor spool 16 and fluid spool 15 again elasticity be positioned at and on the origin-location of valve body 6, realize commutation again.Constantly back and forth, realize the uninterrupted oil recovery of oil extraction pump thus.
As shown in Figure 2, adjust the pretightening force of screw 20 and 20 ' to steel ball 22 and 22 ' rear portion stage clip 21 and 21 ', can realize power required while controlling feed liquor spool 16, fluid spool 15 commutation location.
When maintenance oil extraction pump, can, by the annular oil recovery passage e in oil well casing 1 and the radial hole (not shown) of pump case 5 bottoms, implement oppositely pressurization to pump case 5 bottoms, directly recoil promotes oil extraction pump, without dismantling again other component, take out quickly and easily maintenance thereby realize.
Claims (10)
1. self-loopa liquid drives an oil extraction pump, comprises oil well casing, power fluid pipe, oil extraction pump, packet and power fluid pumping plant and power fluid recycling and processing device, and power fluid pipe is inserted in oil well casing; Pump case upper end in oil extraction pump is connected with the lower end of power fluid pipe, and it is inserted in down-hole and by packet and fixes, thereby forms the annular oil recovery passage between oil well casing and oil extraction pump and power fluid pipe; Oil extraction pump comprises a pump case, two pump barrels, a piston, two oil sucting one-way valves, two oil outlet one-way valves and a reversing valve complement, and wherein reversing valve complement comprises again a valve body, a feed liquor spool and a fluid spool; Power fluid pumping plant feeds pressure liquid by power fluid pipe in oil extraction pump; Power fluid recycling and processing device, to power fluid pumping plant input power liquid, is characterized in that:
The two ends of described valve body connect respectively a pump barrel, be inserted in pump case, and formation are sealed and matched after formation entirety;
Described piston is the double-head piston of dumbbell-like shape, double-head piston external diameter difference Spielpassung is in the pump barrel at valve body two ends, and pump barrel is separated into epicoele and the cavity of resorption of oil extraction pump, piston rod in double-head piston coordinates with the interporal lacuna of valve body central part, and forms the upper and lower working room between the inner and the valve body two ends of double-head piston;
A described oil sucting one-way valve and an oil outlet one-way valve are arranged in the epicoele of oil extraction pump, another oil sucting one-way valve and another oil outlet one-way valve are arranged in the cavity of resorption of oil extraction pump, wherein the entrance of two oil sucting one-way valves communicates with oil well respectively, outlet communicates with epicoele and cavity of resorption respectively, the entrance of oil outlet one-way valve communicates with epicoele and cavity of resorption respectively, outlet communicates with the annular oil recovery passage in oil well casing, makes thus epicoele and cavity of resorption form respiratory cavity;
Described feed liquor spool with fluid spool Spielpassung in valve body and the form that is parallel and is symmetrical in piston rod axis be arranged on the both sides of piston rod, and the upper and lower end of two spools is fixedly connected to form interlock entirety by spool push pedal respectively.
2. a kind of self-loopa liquid as claimed in claim 1 drives oil extraction pump, it is characterized in that described feed liquor spool is provided with two feed liquor paths, and fluid spool is provided with two fluid paths.
3. a kind of self-loopa liquid as claimed in claim 1 drives oil extraction pump, it is characterized in that being respectively equipped with between described spool push pedal and the inner of double-head piston an energy storage spring.
4. a kind of self-loopa liquid as claimed in claim 1 drives oil extraction pump, it is characterized in that the wall portion of valve body is provided with two inlet openings and two liquid outlet openings.
5. a kind of self-loopa liquid as described in claim 1,2,4 any one drives oil extraction pump, it is characterized in that on described valve body two inlet openings wherein one communicate with the feed liquor path on feed liquor spool and form the feed liquor runner of inlet opening to Huo Xia working room of upper working room, on valve body, wherein the Huo Shang working room of lower working room that communicates with the fluid path on fluid spool and form is to the fluid runner of liquid outlet opening for two liquid outlet openings, and an inlet opening and a liquid outlet opening are in addition stopped up by the entity part on feed liquor spool and fluid spool respectively.
6. a kind of self-loopa liquid as claimed in claim 1 or 2 drives oil extraction pump, it is characterized in that described fluid spool is provided with two circular grooves between two fluid paths, and the sectional shape of circular groove is arc.
7. a kind of self-loopa liquid as claimed in claim 6 drives oil extraction pump, it is characterized in that described valve body is wherein provided with symmetry two through holes perpendicular to liquid valve wire mandrel in the position in a circular groove radial center cross section with respect to fluid spool, and the rear portion of through hole is tapped hole.
8. a kind of self-loopa liquid as claimed in claim 7 drives oil extraction pump, it is characterized in that being equipped with respectively a steel ball in described two through holes, the rear portion of steel ball is equipped with stage clip, the rear portion of stage clip screws in tapped hole by bolt stage clip is implemented precompressed and steel ball is embedded in the circular groove on fluid spool, thereby formation feed liquor spool and fluid spool are with respect to the elasticity location of valve body.
9. a kind of self-loopa liquid as described in claim 1 or 4 drives oil extraction pump, the wall portion that it is characterized in that described pump case is provided with a shaft orientation flowing channel and two and radially goes out fluid through-hole, the upper end-hole of shaft orientation flowing channel communicates with power fluid pipe, the lower end mouth of shaft orientation flowing channel communicates with two inlet openings on valve body, two radially go out fluid through-hole one end communicates with two liquid outlet openings on valve body respectively, and the other end communicates with the annular oil recovery passage in oil well casing.
10. a kind of self-loopa liquid as claimed in claim 1 drives oil extraction pump, it is characterized in that described power fluid recycling and processing device is connected with the annular oil recovery passage in oil well casing by pipeline, and by filter using the crude oil gathering out as power fluid input power pump station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701873.6U CN203702513U (en) | 2013-11-08 | 2013-11-08 | Self-circulationhydraulic driveoil recovery pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701873.6U CN203702513U (en) | 2013-11-08 | 2013-11-08 | Self-circulationhydraulic driveoil recovery pump |
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| Publication Number | Publication Date |
|---|---|
| CN203702513U true CN203702513U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320701873.6U Expired - Fee Related CN203702513U (en) | 2013-11-08 | 2013-11-08 | Self-circulationhydraulic driveoil recovery pump |
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| Country | Link |
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| CN (1) | CN203702513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632591A (en) * | 2013-11-08 | 2015-05-20 | 陈中明 | Self-circulation liquid drive oil extraction pump and oil extraction control system |
-
2013
- 2013-11-08 CN CN201320701873.6U patent/CN203702513U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632591A (en) * | 2013-11-08 | 2015-05-20 | 陈中明 | Self-circulation liquid drive oil extraction pump and oil extraction control system |
| CN104632591B (en) * | 2013-11-08 | 2016-06-08 | 陈中明 | A kind of self-loopa liquid drives oil extraction pump and oil extraction control system |
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Legal Events
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| 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: 20140709 Termination date: 20141108 |
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| EXPY | Termination of patent right or utility model |