CN204283822U - A kind of without compression tube oil-well pump - Google Patents
A kind of without compression tube oil-well pump Download PDFInfo
- Publication number
- CN204283822U CN204283822U CN201420638846.3U CN201420638846U CN204283822U CN 204283822 U CN204283822 U CN 204283822U CN 201420638846 U CN201420638846 U CN 201420638846U CN 204283822 U CN204283822 U CN 204283822U
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- China
- Prior art keywords
- seal sleeve
- oil
- internal spiral
- valve group
- pump
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a kind of without compression tube oil-well pump, and the inner seal sleeve upper end sliding fit inside of this pump has internal spiral strong opening valve group; Between inner seal sleeve and outer seal sleeve, form annular housing lower end be provided with transition joint assembly; The outer seal sleeve of upper connection lower end is provided with liquid outlet opening assembly; Multifunctional fixing valve group is connected with in pump barrel lower contact lower end.The utility model for hanging at darker pump, oil well pump submergence too low time oil pipe in excessive the occurred compression loss difficult problem of head of liquid, take internal spiral strong opening valve group top seal measure, create condition for optimizing and improve oil well pump pumping efficiency; The well-flushing that Multifunctional fixing valve group of the present utility model has concurrently, oil recovery, draining " three-in-one " function, be the renewal that oil well pump design is from now on produced, simplify oil well operation flow process, significantly save field produces cost and provide new thinking.
Description
Technical field
The utility model belongs to extracting device of oil technical field, is specifically related to a kind of without compression tube oil-well pump.
Background technique
With regard to China's field produces present situation, the oil well pump majority that pumping unit uses is bobbin formula, and traditional tube oil-well pump is all without any barrier propterty, can not meet the needs produced at present well, affect oil recovery efficiency.Although the various oil well pumps with safeguard function occurred in recent years make the function of conventional oil well pump be improved, such as, the unshielded property drawback of opening wide completely for conventional tube oil-well pump pump barrel top in a kind of tube type long-acting composite oil well pump disclosed in CN201120068164 is carried out certain perfect, but, still can not solve the other problems that well wellbore occurred in the later stage.Such as, after reservoir energy dies down, between well fluid level too low formation oil pipe and annular space, the pressure difference excessive oil pump plunger piston unlatching period is long, and the excessive suction effect having seriously undermined oil well pump of compression loss in suction chamber, what have even occurs gas lock.Design for traditional oil well pump is not enough, has also once occurred various protection instrument and has served certain protective action, but the technical advantage of protection instrument and oil well pump design and still do not carry out rationally effectively combining.
Model utility content
The technical problem that the utility model solves is to provide a kind of without compression tube oil-well pump, the problem solved is: when in oil pipe, head of liquid is excessive, solve plunger oiling valve and open the complicated problem of delayed occurred compression loss problem and well-flushing, oil recovery, draining program, further for optimizing and improve oil well pump pumping efficiency and simplifying job step, reduce cost of production and create conditions.
For solving above-mentioned technical problem, the technical solution of the utility model is:
A kind of without compression tube oil-well pump, comprise pump barrel, be arranged at the plunger of pump barrel inside, be arranged at the plunger pull bar of its upper end; Described pump barrel upper end is provided with inner seal sleeve, and inner seal sleeve upper end sliding fit inside has internal spiral strong opening valve group; The upper end connecting with pumping rod of described internal spiral strong opening valve group 5, lower end connects plunger pull bar; At least one oil outlet is provided with between the upper end of described inner seal sleeve and internal spiral strong opening valve group; Be arranged with outer seal sleeve outside described inner seal sleeve, between inner seal sleeve and outer seal sleeve, form annular housing, the lower end of cavity is provided with transition joint assembly; The inside, upper end of described outer seal sleeve is provided with middle cover, and the cavity upper end between middle cover and outer seal sleeve is provided with upper connection, and the outer seal sleeve of upper connection lower end is provided with liquid outlet opening assembly; Described pump barrel lower end is provided with pump barrel lower contact; Described pump barrel lower contact lower end is connected with Multifunctional fixing valve group, and described Multifunctional fixing valve group is connected with chimney filter and other pipe fittings of oil well by standing valve joint.
Described internal spiral strong opening valve group comprises internal spiral strong opening valve and opens pipe nipple by force; Described pipe nipple upper end of opening by force is connected with sucker rod lower end with locking nut by box cupling, and described internal spiral strong opening valve lower end is connected with plunger by plunger pull bar; It is inner that the described strip fixture block opened by force in pipe nipple outer rim is engaged in internal spiral strong opening valve.
Inside, described inner seal sleeve top is the conical surface, can with internal spiral strong opening valve closing seam.
Be snug sliding fit relation between described internal spiral strong opening valve and plunger pull bar.
Described Multifunctional fixing valve group comprises pressure ring, Multifunctional fixing valve group body, overcurrent cover, oil drainer cored screw, elastic force holding claw, valve ball and ball seat; Described pressure ring be threaded connection be arranged at Multifunctional fixing valve group body interior upper end port in, described overcurrent cover is sliding is assigned in pressure ring lower end, described oil drainer cored screw is horizontally set in the middle of the opening slot of overcurrent cover lower end, described elastic force holding claw is arranged at Multifunctional fixing valve group body interior, is held tightly by valve ball by the power of embracing of grabbing of elastic force holding claw; Described ball seat is arranged at standing valve upper end of joint, and the heart has endoporus wherein, and the center line of described endoporus aligns with the medial axis of valve ball.
Described transition joint assembly comprises transition joint, jackscrew and row's dirt ring; Described transition joint is arranged at the cavity bottom of inner seal sleeve and outer seal sleeve formation, and transition joint inside has multiple top wire hole, and multiple jackscrew engagement wherein; The dirty ring of described row is arranged on top inside transition joint.
Described liquid outlet opening assembly comprises spring, the liquid outlet opening that outer seal sleeve is arranged and lower spring end piston ring moving up and down.
Described opening by force between pipe nipple and internal spiral strong opening valve is connected with a joggle by straight line fixture block and large pitch inner spiral groove; The described outer rim opening by force pipe nipple is symmetrically distributed with 2 strip fixture blocks; The helical pitch of described internal spiral strong opening valve internal spiral is greater than the axial length of strip fixture block.
Multiple O type circle is provided with in the middle of described piston ring 33.
Useful benefit of the present utility model:
1., when head of liquid is excessive in oil pipe, solves plunger oiling valve and open delayed occurred compression loss problem;
2. after avoiding top to cut pressure, there is the problem of plunger upper part gas lock;
3. simplify complicated well-flushing, oil recovery, draining program, for oil field is cost-saving;
4. solve the production difficult problem in the oil recovery of various complex condition.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model, comprising transition joint assembly enlarged view and liquid outlet opening assembly enlarged view;
Fig. 2 is the structural representation of the utility model internal spiral strong opening valve group;
Fig. 3 is the sectional drawing of the utility model internal spiral strong opening valve;
Fig. 4 is the unfolded drawing of the utility model internal spiral strong opening valve internal spiral part;
Fig. 5 is the C direction view of the utility model internal spiral strong opening valve internal spiral part unfolded drawing;
Fig. 6 is the structural representation of the utility model Multifunctional fixing valve group;
In figure, 1-pump barrel, 2-plunger, 3-plunger pull bar, 4-inner seal sleeve, 5-internal spiral strong opening valve group, 6-sucker rod, 7-oil outlet, 8-outer seal sleeve, 9-transition joint assembly, 10-middle cover, 11-upper connection, 12-liquid outlet opening assembly, the lower contact of 13-pump barrel, 14-Multifunctional fixing valve group, 15-standing valve joint, 16-chimney filter, 17-internal spiral strong opening valve, 18-opens pipe nipple by force, 19-box cupling, 20-locking nut, 21-pressure ring, 22-standing valve group body, 23-overcurrent cover, 24-oil drainer cored screw, 25-elastic force holding claw, 26-valve ball, 27-ball seat, 28-transition joint, 29-jackscrew, 30-arranges dirty ring, 31-spring, 32-liquid outlet opening, 33-piston ring, 34-〇 type circle, 35-oil pipe.
Embodiment
In order to better understand the improvement that the utility model is made relative to prior art, below in conjunction with embodiment, the utility model is described in detail.
See by Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of without compression tube oil-well pump, comprise pump barrel 1, be arranged at the plunger 2 of pump barrel 1 inside, be arranged at the plunger pull bar 3 of plunger 2 upper end; Described pump barrel 1 upper end is provided with inner seal sleeve 4, and inner seal sleeve 4 upper end sliding fit inside has internal spiral strong opening valve group 5; The upper end connecting with pumping rod 6 of described internal spiral strong opening valve group 5, lower end connects plunger pull bar 3; 8 oil outlets 7 are provided with between the upper end of described inner seal sleeve 4 and internal spiral strong opening valve group 5; Be arranged with outer seal sleeve 8 outside described inner seal sleeve 4, between inner seal sleeve 7 and outer seal sleeve 8, form annular housing, the lower end of cavity is provided with transition joint assembly 9; The inside, upper end of described outer seal sleeve 8 is provided with middle cover 10, and the cavity upper end between middle cover 10 and outer seal sleeve 8 is provided with upper connection 11, and the outer seal sleeve 8 of upper connection 11 lower end is provided with liquid outlet opening assembly 12; Described pump barrel 1 lower end is provided with pump barrel lower contact 13; Described pump barrel lower contact 13 lower end is connected with Multifunctional fixing valve group 14, and described Multifunctional fixing valve group 14 is connected with chimney filter 16 and other pipe fittings of oil well by standing valve joint 15.
Described internal spiral strong opening valve group comprises internal spiral strong opening valve 17 and opens by force pipe nipple 18; Described pipe nipple 18 upper end of opening by force is connected with sucker rod 6 lower end with locking nut 20 by box cupling 19, and described internal spiral strong opening valve 17 lower end is connected with plunger 2 by plunger pull bar 3; It is inner that the described strip fixture block opened by force in pipe nipple 18 outer rim is engaged in internal spiral strong opening valve 17.
Inside, described inner seal sleeve 8 top is the conical surface, can with internal spiral strong opening valve 17 closing seam.
Be snug sliding fit relation between described internal spiral strong opening valve 17 and plunger pull bar 3.
Described Multifunctional fixing valve group comprises pressure ring 21, Multifunctional fixing valve group body 22, overcurrent cover 23, oil drainer cored screw 24, elastic force holding claw 25, valve ball 26 and ball seat 27; Described pressure ring 21 be threaded connection be arranged at Multifunctional fixing valve group body 22 inner upper end port in, described overcurrent cover 23 is sliding is assigned in pressure ring 21 lower end, described oil drainer cored screw 24 is horizontally set at overcurrent and overlaps in the middle of the opening slot of 23 lower ends, it is inner that described elastic force holding claw 25 is arranged at Multifunctional fixing valve group body 22, held tightly by valve ball 26 by the power of embracing of grabbing of elastic force holding claw 25; Described ball seat 27 is arranged at standing valve joint 15 upper end, and the heart has endoporus wherein, and the center line of described endoporus aligns with the medial axis of valve ball 26.
Described transition joint assembly 9 comprises transition joint 28, jackscrew 29 and arranges dirty ring 30; Described transition joint 28 is arranged at the cavity bottom of inner seal sleeve 4 and outer seal sleeve 8 formation, and transition joint inside has 3 top wire holes, and 3 jackscrews 29 engage wherein; Described row is dirty, and ring 30 is arranged on top inside transition joint 28.
Described liquid outlet opening assembly 12 comprises spring 31, liquid outlet opening 32 and the spring 31 lower end piston ring 33 moving up and down that outer seal sleeve 8 is arranged.
Described opening by force between pipe nipple 18 and internal spiral strong opening valve 17 is connected with a joggle by straight line fixture block and large pitch inner spiral groove; The described outer rim opening by force pipe nipple 18 is symmetrically distributed with 2 strip fixture blocks; The helical pitch of described internal spiral strong opening valve 17 internal spiral is greater than the axial length of strip fixture block.
Multiple O type circle 34 is provided with in the middle of described piston ring 33.
This oil well pump, in actual production uses, pump barrel 1, inner seal sleeve 4, middle cover 10, outer seal sleeve 8, upper connection 11, pump barrel lower contact 13, transition joint 28, jackscrew 29, arranges as a whole of dirty ring 30, spring 31, is first module; Pressure ring 21, standing valve group body 22, overcurrent cover 23, earial drainage device cored screw 24, elastic force holding claw 25, valve ball 26, ball seat 27, as a whole of transition joint 28 are second unit; Plunger 2, plunger pull bar 3, internal spiral strong opening valve 17, opening as a whole of pipe nipple 18 by force, is Unit the 3rd, and sucker rod 6, box cupling 19, locking nut 20 and oil pipe 35 and chimney filter 16 coordinate as other materials to be installed and used.
When entering well installation, its order is:
(1). tail pipe and chimney filter 16 are entered well;
(2). second unit and first module are merged install as a whole after enter well;
(3). oil pipe 35 and upper connection 11 are connected into well (under enter to planned well fragment position).
It should be noted that, need first to carry out clean-out service before often entering well with plunger 2 after flow string (band pump) enters well, until pit shaft reach clean after enter down plunger 2 again and open and take out.In this case, first forward circulation clean-out service can be carried out.Hang because valve ball now 26 is grabbed to embrace by elastic force holding claw 25, flushing fluid can flow through smoothly via ball seat 27 endoporus and enter pit shaft and return out well head again, realizes well-flushing.After well-flushing completes, under enter Unit the 3rd that oil pump plunger piston 2(comprises sucker rod 6, box cupling 19, locknut 20 and be connected with them) and make it enter pump barrel 1.After oil pump plunger piston 2 enters pump barrel 1, first overlap the contact between 23 internal taper holes by guide shoe and overcurrent bottom plunger 2 a part of weight of sucker rod is passed to overcurrent to overlap 23, utilize its gravity to force overcurrent to overlap to push away for 23 times and valve ball 26 is departed from from elastic force holding claw 25 and falls into ball seat 27, recover the function of Multifunctional fixing valve of oil pump group 14.
When oil well pump work to the regular period need once again well-flushing time, tubing string can not be proposed and in oil pipe 35, directly inject flushing fluid carry out well-flushing.Flushing fluid enters after in outer seal sleeve 8, retreats make flushing fluid realize well-flushing from liquid outlet opening 32 discharge at effect lower piston ring 33 pressuring spring 31 of setting pressure; Note pressure stops back piston ring 33 to automatically reset, and recovers to recover the oil.
Second unit and Multifunctional fixing valve group 14 are for having well-flushing, oil recovery and draining three kinds of functions several functions unit concurrently, can meet above three kinds of operation needs, centre does not reintroduce tubing string simultaneously, also instead of traditional oil drainer simultaneously, installation is simplified more, reduces cost.
When normal oil recovery is produced, with 3 jackscrews 29 with between transition joint 28 for fit sealing coordinates.When well workover, with 3 longer jackscrews 29 by piston ring 33 jack-up row dirt, continue to install and use after cleaning maintenance.Should not often dismantle between outer seal sleeve 8 and transition joint 28.
When well-flushing terminates, valve ball 26 falls into ball seat 27, now namely recovers oil pumping function.Pumping unit drive sucker rod 6 up time, plunger 2, plunger pull bar 3, by force open pipe nipple 18, box cupling 19, locking nut 20 just thereupon entirety move up.Now, liquid will flow into the inner chamber of plunger 2 lower end pump barrel 1 after valve ball 26 jack-up; When sucker rod 6 is descending, above-mentioned namely thereupon descending, and valve ball 26 falls closed with ball seat 27.And so forth until liquid is drawn out of well head.
When being full of liquid in oil pipe on pump 35, the pressure that fluid column gravity is formed will act on oil pump plunger piston 2 all the time.When oil pump plunger piston 2 is descending, it is delayed that head of liquid can make plunger 2 oiling valve open, and weakens and suck effect.
When plunger 2 is descending, internal spiral strong opening valve 17 is closing seam between the inner tilted conical surface of inner seal sleeve 8, stop the pressure that in oil pipe 35, fluid column causes plunger 2 oiling valve, make it opening without under compressive state, increase intake, also can avoid the gas lock that oil well pump occurs in lower submergence situation.It is snug sliding fit between plunger pull bar 3 and internal spiral strong opening valve 17.Open by force between pipe nipple 18 and internal spiral strong opening valve 17 is straight line fixture block and the intermeshing relation of large pitch spiral chute.In the outer rim opening by force pipe nipple 18, be symmetrically distributed with 2 strip fixture blocks.In internal spiral strong opening valve 17, the helical pitch of internal spiral is slightly larger than the axial length of strip fixture block, come downwards at plunger 2 and open by force pipe nipple 18 and enter in the process of internal spiral strong opening valve 17 internal helicoid groove completely, produce between the helix inclined trough surface of strip fixture block and internal spiral strong opening valve 17 internal helicoid groove force power (blocking the axial Action of Gravity Field that carries soon behind helix inclined-plane to the rotary thrust that internal spiral strong opening valve 17 produces) that internal spiral strong opening valve 17 can be made to rotate certain angle after stop;
When sucker rod 6 drives plunger 2 to do upstroke, internal spiral strong opening valve 17 will upwards be forced by the strip fixture block opened by force on pipe nipple 18 to put forward certain distance, internal spiral strong opening valve 17 is made to produce of short duration separation with inner seal sleeve 4, then automatic fall-back is to original position (after internal spiral strong opening valve 17 is carried certain distance, inner large pitch screw inclined plane can make its rapid landing to original position to strip fixture block).In the process, oil pipe 35 inner plunger more than 2 pressure attains equilibrium everywhere, unlikelyly makes internal spiral strong opening valve group about 5 two ends mineralization pressures difference or occurs plunger 2 top gas lock.
Content of the present utility model is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading the utility model specification to any equivalence that technical solutions of the utility model are taked, is claim of the present utility model and contains.
Claims (9)
1. without a compression tube oil-well pump, it is characterized in that: comprise pump barrel (1), be arranged at the plunger (2) that pump barrel (1) is inner, be arranged at the plunger pull bar (3) of plunger (2) upper end; Described pump barrel (1) upper end is provided with inner seal sleeve (4), and inner seal sleeve (4) upper end sliding fit inside has internal spiral strong opening valve group (5); The upper end connecting with pumping rod (6) of described internal spiral strong opening valve group (5), lower end connects plunger pull bar (3); At least one oil outlet (7) is provided with between the upper end of described inner seal sleeve (4) and internal spiral strong opening valve group (5); Described inner seal sleeve (4) outside is arranged with outer seal sleeve (8), and between inner seal sleeve (7) and outer seal sleeve (8), form annular housing, the lower end of cavity is provided with transition joint assembly (9); The inside, upper end of described outer seal sleeve (8) is provided with middle cover (10), cavity upper end between middle cover (10) and outer seal sleeve (8) is provided with upper connection (11), and the outer seal sleeve (8) of upper connection (11) lower end is provided with liquid outlet opening assembly (12); Described pump barrel (1) lower end is provided with pump barrel lower contact (13); Described pump barrel lower contact (13) lower end is connected with Multifunctional fixing valve group (14), and described Multifunctional fixing valve group (14) is connected with chimney filter (16) and other pipe fittings of oil well by standing valve joint (15).
2. as claimed in claim 1 without compression tube oil-well pump, it is characterized in that: described internal spiral strong opening valve group comprises internal spiral strong opening valve (17) and opens by force pipe nipple (18); Described pipe nipple (18) upper end of opening by force is connected with sucker rod (6) lower end with locking nut (20) by box cupling (19), and described internal spiral strong opening valve (17) lower end is connected with plunger (2) by plunger pull bar (3); It is inner that the described strip fixture block opened by force in pipe nipple (18) outer rim is engaged in internal spiral strong opening valve (17).
3. as claimed in claim 1 without compression tube oil-well pump, it is characterized in that: inside, described inner seal sleeve (8) top is the conical surface, can with internal spiral strong opening valve (17) closing seam.
4., as nothing compression tube oil-well pump according to claim 1 or claim 2, it is characterized in that: be snug sliding fit relation between described internal spiral strong opening valve (17) and plunger pull bar (3).
5. as claimed in claim 1 without compression tube oil-well pump, it is characterized in that: described Multifunctional fixing valve group comprises pressure ring (21), Multifunctional fixing valve group body (22), overcurrent cover (23), oil drainer cored screw (24), elastic force holding claw (25), valve ball (26) and ball seat (27); Described pressure ring (21) be threaded connection be arranged at Multifunctional fixing valve group body (22) inner upper end port in, described overcurrent cover (23) is sliding is assigned in pressure ring (21) lower end, described oil drainer cored screw (24) is horizontally set in the middle of the opening slot of overcurrent cover (23) lower end, it is inner that described elastic force holding claw (25) is arranged at Multifunctional fixing valve group body (22), held tightly by valve ball (26) by the power of embracing of grabbing of elastic force holding claw (25); Described ball seat (27) is arranged at standing valve joint (15) upper end, and the heart has endoporus wherein, and the center line of described endoporus aligns with the medial axis of valve ball (26).
6. as claimed in claim 1 without compression tube oil-well pump, it is characterized in that: described transition joint assembly (9) comprises transition joint (28), jackscrew (29) and the dirty ring of row (30); Described transition joint (28) is arranged at the cavity bottom that inner seal sleeve (4) and outer seal sleeve (8) are formed, and transition joint inside has multiple top wire hole, and multiple jackscrew (29) engagement wherein; The dirty ring of described row (30) is arranged on top, transition joint (28) inner side.
7. as claimed in claim 1 without compression tube oil-well pump, it is characterized in that: described liquid outlet opening assembly (12) comprises spring (31), the liquid outlet opening (32) of the upper setting of outer seal sleeve (8) and spring (31) lower end piston ring moving up and down (33).
8. as claimed in claim 2 without compression tube oil-well pump, it is characterized in that: described opening by force between pipe nipple (18) and internal spiral strong opening valve (17) is connected with a joggle by straight line fixture block and large pitch inner spiral groove; The described outer rim opening by force pipe nipple (18) is symmetrically distributed with 2 strip fixture blocks; The helical pitch of described internal spiral strong opening valve (17) internal spiral is greater than the axial length of strip fixture block.
9. as claimed in claim 7 without compression tube oil-well pump, it is characterized in that: in the middle of described piston ring (33), be provided with multiple O type circle (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420638846.3U CN204283822U (en) | 2014-10-31 | 2014-10-31 | A kind of without compression tube oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420638846.3U CN204283822U (en) | 2014-10-31 | 2014-10-31 | A kind of without compression tube oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283822U true CN204283822U (en) | 2015-04-22 |
Family
ID=52866987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420638846.3U Withdrawn - After Issue CN204283822U (en) | 2014-10-31 | 2014-10-31 | A kind of without compression tube oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373329A (en) * | 2014-10-31 | 2015-02-25 | 俞洧 | Tube type oil well pump without compression cylinder |
-
2014
- 2014-10-31 CN CN201420638846.3U patent/CN204283822U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373329A (en) * | 2014-10-31 | 2015-02-25 | 俞洧 | Tube type oil well pump without compression cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20160413 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |