CN206988079U - A kind of fluid pressure type oil well pump - Google Patents
A kind of fluid pressure type oil well pump Download PDFInfo
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- CN206988079U CN206988079U CN201720651810.2U CN201720651810U CN206988079U CN 206988079 U CN206988079 U CN 206988079U CN 201720651810 U CN201720651810 U CN 201720651810U CN 206988079 U CN206988079 U CN 206988079U
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Abstract
The utility model belongs to coal bed gas well without bar mining equipment technical field, and in particular to a kind of fluid pressure type oil well pump.A kind of fluid pressure type oil well pump, including outer barrel and inner cylinder, the outer barrel is made up of oil pipe top connection, outer tube, lower contact, fixed cover, standing valve and fixed shield joint, described oil pipe top connection is threadedly coupled by outer tube with lower contact, the fixed cover of threaded connection below lower contact, the fixed shield joint of fixed cover lower section threaded connection；Described inner cylinder is made up of two channel joint, fluid cylinder outer tube, connection variable buckle and pump barrel, described two channel joint threaded connection fluid cylinder outer tube, fluid cylinder outer tube is threadedly coupled by connecting variable buckle with pump barrel, pump barrel is threadedly coupled with the lower contact of outer barrel, variable buckle connection-peg is set below described two channel joint, fluid cylinder is set below variable buckle connection-peg, fluid cylinder is connected by piston with connecting rod, connecting rod sets assembly for plunger through connection variable buckle, connecting rod lower section.This oil well pump realizes that oil pump plunger piston moves back and forth the purpose of extraction well liquid in pump barrel by hydraulic drive.
Description
Technical field
The utility model belongs to coal bed gas well without bar mining equipment technical field, and in particular to a kind of fluid pressure type oil well pump.
Background technology
At present, coal bed gas water pumping gas production operation is based on tubing pump (oil pumper-sucker rod-tubing pump), screw pump (
Face driver-sucker rod-screw pump) supplemented by, its underground pumpage should not be adjusted.The sucker rod of tubing pump is up and down and spiral shell
Sucker rod rotary motion eccentric wear in high angle hole of bar pump is serious, causes pump detection period shorter；Complicated well type is not suitable for, such as
Directional well, horizontal well.Its major defect is：Sucker rod and oil pipe friction, cause rod tube to damage.
The content of the invention
The purpose of this utility model is that this is taken out for a kind of fluid pressure type oil well pump of problems of the prior art offer
Oil pump overcome using oil pumper connecting with pumping rod drive oil pumping pump part move back and forth existing for sucker rod and oil pipe friction, partially
The shortcomings that rubbing, this oil well pump realize that oil pump plunger piston moves back and forth the purpose of extraction well liquid in pump barrel by hydraulic drive.
The technical solution of the utility model is：
A kind of fluid pressure type oil well pump, including outer barrel and inner cylinder, the outer barrel is by oil pipe top connection, outer tube, lower contact, fixation
Cover and fixed shield joint composition, described oil pipe top connection are threadedly coupled by outer tube with lower contact, and square thread connects under lower contact
Connect fixed cover, the fixed shield joint of fixed cover lower section threaded connection；Described inner cylinder is become by two channel joint, fluid cylinder outer tube, connection
Button and pump barrel composition, described two channel joint threaded connection fluid cylinder outer tube, fluid cylinder outer tube is by connecting variable buckle and pump barrel screw thread
Connection, pump barrel are threadedly coupled with the lower contact of outer barrel, and variable buckle connection-peg, variable buckle connection-peg are set below described two channel joint
Lower section sets fluid cylinder, and fluid cylinder is connected by piston with connecting rod, and connecting rod sets plunger total through connection variable buckle, connecting rod lower section
Into.
Specifically, described variable buckle connection-peg is connected through a screw thread two channel joint, variable buckle connection-peg insertion fluid cylinder, variable buckle
Sealing ring is set between connection-peg and two channel joint and fluid cylinder.
Specifically, described piston is coordinated by sealing ring and fluid cylinder sealing, piston will be divided into two up and down inside fluid cylinder
Space.
Specifically, being provided with inlet opening on described fluid cylinder, inlet opening connects with two feed pathways of two channel joint.
Specifically, described two channel joint upper end is provided with center flowing hole, center flowing hole is inclined to set, center
Its lower end of flowing hole is connected with two channel joint bottom either side outer wall, but the lower surface of center flowing hole and two channel joint
It is disconnected, there are connection flow channels from top to bottom on the outside of two channel joint Upper passage.
Specifically, it is provided with one-way cock in the assembly for plunger stated.
Specifically, unidirectional standing valve is set in described fixed cover.
The beneficial effects of the utility model are：Overcome and drive oil pumping pump part back and forth to transport using oil pumper connecting with pumping rod
The shortcomings that moving existing sucker rod and oil pipe friction, rubbing partially, this oil well pump realizes oil pump plunger piston in pump barrel by hydraulic drive
It is interior to move back and forth the purpose for extracting well liquid.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Structural representation when Fig. 2 is fluid pressure type oil well pump mining work described in the utility model.
1 oil pipe top connection, 2 outer tubes, 3 two channel joints, 4 variable buckle connection-pegs, 5 fluid cylinders, 6 pistons,
7 fluid cylinder outer tubes, 8 connection variable buckles, 9 connecting rods, 10 pump barrels, 11 assembly for plunger, 12 lower contacts,
13 fix cover, 14 unidirectional standing valves, 15 fixation shield joints.
Embodiment
It is as shown in Figure 1 a kind of structural representation of fluid pressure type oil well pump, it includes outer barrel and inner cylinder.The outer barrel is by oil
Pipe top connection 1, outer tube 2, lower contact 12, fixed cover 13, fixed shield joint 15 form, and described oil pipe top connection 1 passes through outer tube
It is threadedly coupled, the fixed cover 13 of the lower section of lower contact 12 threaded connection, is set in described fixed cover 13 unidirectional fixed with lower contact 12
Valve 14, the fixed shield joint 15 of the fixed lower section of cover 13 threaded connection；Described inner cylinder is by two channel joint 3, fluid cylinder outer tube 7, connection
Variable buckle 8 and pump barrel 10 form, described two channel joint 3 threaded connection fluid cylinder outer tube 7, fluid cylinder outer tube 7 by connect variable buckle 8 with
Pump barrel 10 is threadedly coupled, and pump barrel 10 is threadedly coupled with the lower contact 12 of outer barrel, and the described lower section of two channel joint 3 sets variable buckle
Connection-peg 4, the lower section of variable buckle connection-peg 4 set fluid cylinder 5, and described variable buckle connection-peg 4 is connected through a screw thread two channel joint 3, becomes
Detain connection-peg 3 and insert fluid cylinder 5, sealing ring is set between variable buckle connection-peg 4 and two channel joint 3 and fluid cylinder 5.Described piston 6
Coordinated by sealing ring and the sealing of fluid cylinder 5, piston 6 will be divided into two spaces up and down inside fluid cylinder 5, be set on described fluid cylinder 5
There is inlet opening, inlet opening connects with two feed pathways of two channel joint 3.Fluid cylinder 5 is connected by piston 6 with connecting rod 9, even
Extension bar 9 sets assembly for plunger 11, check valve is provided with described assembly for plunger 11 through connection variable buckle 8, the lower section of connecting rod 9
Door.
The described upper end of two channel joint 3 is provided with center flowing hole, and center flowing hole is inclined to set, center flowing hole
Its lower end is connected with the bottom either side outer wall of two channel joint 3, but the lower surface of center flowing hole and two channel joint 3 is not
Connection, there are connection flow channels from top to bottom on the outside of the Upper passage of two channel joint 3.
Structural representation during a kind of fluid pressure type oil well pump mining work is illustrated in figure 2, with reference to Fig. 2 to the utility model
Be described below in detail：
When going into the well, after lower end of the present utility model fixation shield joint 15 is connected into outfit such as screen casing, tail pipe class first,
Then the connected pipes of upper end oil pipe top connection 1, under this oil well pump, to desired depth, inlet B will be set on ground, transferred afterwards
Center oil pipe, insertion completion sealed connection after center oil pipe lower end is transferred to two channel joint 3, inlet A is set on ground.
When injecting liquid from the A channel of center oil pipe, liquid is entered outside fluid cylinder 5 by 301 passages of two channel joint 3
In annular space b between pipe and fluid cylinder 5, enter the liquid separated by piston by the inlet opening 501 of the lower end of fluid cylinder 5 again afterwards
Cylinder lower space d, it is ultimately applied to the lower end plane of piston 6.The upper end applanation of piston 6 is the pressure of well depth fluid column, works as work
Fill in 6 lower end plane pressures greatly to a certain degree when, piston 6 will be promoted to run up, it is finally real by the effect of connecting rod 9
Existing upstroke of the oil pump plunger piston in pump barrel.
In 11 upward motion process of assembly for plunger, one-way cock is because the pressure of upper end is closed, by the f of oil well pump space
Fluid power drain into space a by 1001 outages of pump barrel upper end；Simultaneously because space g increases, pressure reduces, stratum hydraulic coupling
Unidirectional standing valve 14 will be opened, space h formation fluid enters space g by unidirectional standing valve 14.
Piston 6 is moved to after top, is stopped from A channel fluid injection, at this moment, the upper surface and lower surface of piston 6 are pressurized
Power is the pressure of fluid column, but the upper surface area of piston 6 is more than lower surface area, so since, piston 6 will move downward, lead to
Cross the effect promotion assembly for plunger 11 of connecting rod 9 and move downward and (accelerate to move downward speed if necessary, liquid can be injected from channel B
Body supercharging is realized).During assembly for plunger 11 moves downward, space g reduces, and pressure increase, unidirectional standing valve 14 is closed, plunger
One-way cock in assembly 11 is opened, and liquid enters space f in the g of space.
Pressurizeed by the alternating fluid injection of A, B chamber, realize that piston, the alternating of oil pump plunger piston are up, descending, final realize will
Shaft bottom liquid is pumped into space a, eventually through B chambers mining to ground.
Finally it should be noted that:Above example is only illustrating the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：Specific embodiment of the present utility model can still be modified or some technical characteristics are equally replaced
Change；Without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model
Among scope.
Claims (7)
1. a kind of fluid pressure type oil well pump, including outer barrel and inner cylinder, it is characterised in that the outer barrel is by oil pipe top connection (1), outer tube
(2), lower contact (12), fixed cover (13) and fixed shield joint (15) composition, described oil pipe top connection (1) is by outer tube with
Joint (12) is threadedly coupled, and threaded connection is fixed below lower contact (12) covers (13), threaded connection fixation below fixed cover (13)
Shield joint (15)；Described inner cylinder is made up of two channel joint (3), fluid cylinder outer tube (7), connection variable buckle (8) and pump barrel (10), institute
Two channel joint (3) the threaded connection fluid cylinder outer tube (7) stated, fluid cylinder outer tube (7) is by connecting variable buckle (8) and pump barrel (10) screw thread
Connection, pump barrel (10) are threadedly coupled with the lower contact (12) of outer barrel, and variable buckle connection-peg is set below described two channel joint (3)
(4) fluid cylinder (5), is set below variable buckle connection-peg (4), and fluid cylinder (5) is connected by piston (6) with connecting rod (9), connecting rod (9)
Through connection variable buckle (8), assembly for plunger (11) is set below connecting rod (9).
2. fluid pressure type oil well pump according to claim 1, it is characterised in that described variable buckle connection-peg (4) is connected by screw thread
Connect two channel joint (3), variable buckle connection-peg (3) insertion fluid cylinder (5), variable buckle connection-peg (4) and two channel joint (3) and fluid cylinder
(5) sealing ring is set between.
3. fluid pressure type oil well pump according to claim 1, it is characterised in that described piston (6) passes through sealing ring and fluid cylinder
(5) sealing coordinates, and piston (6) will be divided into two spaces up and down inside fluid cylinder (5).
4. fluid pressure type oil well pump according to claim 1, it is characterised in that be provided with inlet opening on described fluid cylinder (5), enter
Fluid apertures connects with two feed pathways of two channel joint (3).
5. fluid pressure type oil well pump according to claim 1, it is characterised in that described two channel joint (3) upper end is provided with
Center flowing hole, center flowing hole are inclined to set, its lower end of center flowing hole and two channel joint (3) bottom either side outer wall
Connect, but the lower surface of center flowing hole and two channel joint (3) is disconnected, outside two channel joint (3) Upper passage
There are connection flow channels from top to bottom side.
6. fluid pressure type oil well pump according to claim 1, it is characterised in that be provided with described assembly for plunger (11) unidirectional
Valve.
7. fluid pressure type oil well pump according to claim 1, it is characterised in that set in described fixed cover (13) unidirectional fixed
Valve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720651810.2U CN206988079U (en) | 2017-06-07 | 2017-06-07 | A kind of fluid pressure type oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720651810.2U CN206988079U (en) | 2017-06-07 | 2017-06-07 | A kind of fluid pressure type oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206988079U true CN206988079U (en) | 2018-02-09 |
Family
ID=61394988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720651810.2U Active CN206988079U (en) | 2017-06-07 | 2017-06-07 | A kind of fluid pressure type oil well pump |
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| CN (1) | CN206988079U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653710A (en) * | 2018-11-09 | 2019-04-19 | 大港油田集团有限责任公司 | A kind of hydraulic drive reciprocating pump |
| CN110159231A (en) * | 2019-07-10 | 2019-08-23 | 刘世江 | Oil well pump driving and Heating device for oil well |
| CN111927398A (en) * | 2019-05-13 | 2020-11-13 | 中国石油天然气股份有限公司 | Coal bed gas production system and gas production method |
-
2017
- 2017-06-07 CN CN201720651810.2U patent/CN206988079U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653710A (en) * | 2018-11-09 | 2019-04-19 | 大港油田集团有限责任公司 | A kind of hydraulic drive reciprocating pump |
| CN111927398A (en) * | 2019-05-13 | 2020-11-13 | 中国石油天然气股份有限公司 | Coal bed gas production system and gas production method |
| CN110159231A (en) * | 2019-07-10 | 2019-08-23 | 刘世江 | Oil well pump driving and Heating device for oil well |
| CN110159231B (en) * | 2019-07-10 | 2024-03-01 | 东光县远东石油设备有限公司 | Oil pump driving and oil well heating device |
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