CN206592107U - Down-hole oil production elastic expansion plunger - Google Patents
Down-hole oil production elastic expansion plunger Download PDFInfo
- Publication number
- CN206592107U CN206592107U CN201720274930.5U CN201720274930U CN206592107U CN 206592107 U CN206592107 U CN 206592107U CN 201720274930 U CN201720274930 U CN 201720274930U CN 206592107 U CN206592107 U CN 206592107U
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- China
- Prior art keywords
- pole
- center
- expansion post
- sleeve body
- expansion
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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.)
- Expired - Fee Related
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000012856 packing Methods 0.000 claims abstract description 18
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 238000000605 extraction Methods 0.000 claims abstract description 5
- 238000000338 in vitro Methods 0.000 claims description 2
- 239000004576 sand Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 30
- 239000012530 fluid Substances 0.000 description 7
- 239000010779 crude oil Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 239000003129 oil well Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000002583 cell-derived microparticle Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A kind of down-hole oil production elastic expansion plunger, including lower centralizer body, sleeve body, slide expansion post patch, elastic packing rubber packing, expansion post fork clip hoop, center-pole, upper centralizer body, center-pole outer wall is socketed with lower centralizer body successively from bottom to up, sleeve body, expansion post fork clip hoop, upper centralizer body, center-pole top is provided with sucker rod screw thread, for connecting with pumping rod lower end screw thread, center-pole lower end is used for connecting with pumping rod top screw thread provided with sucker rod external screw thread, a cavity is formed between sleeve body and center-pole, interval is provided with some grooves on sleeve body excircle, elastic packing rubber packing is provided with groove, it is external that slip expansion post patch is enclosed on sliding sleeve, and slip expansion post patch upper end is placed in the annular groove that expansion post fork clip hoop is formed with sleeve body, lower end is placed in the annular groove of sleeve body lower stage terrace, upper centralizer body and lower centralizer body are multiple edge body, open cross v notch v and carry out oil extraction in expansion post fork clip hoop upper end.The utility model is simple in construction, is easy to safeguard；It is cheap, prevent sand card.
Description
Technical field
The utility model belongs to oil extraction in oil field technical field, more particularly to a kind of down-hole oil production elastic expansion plunger.
Background technology
The current demand both at home and abroad to crude oil is increasing, and crude oil yield is constantly reduced.In order to improve crude oil
Yield, it is necessary to the depth of deepened well, while being continually changing with geographical environment and hole condition, cause heavy oil wells, containing sand drain, contain
Wax well is continuously increased, and the quality and oil recovery quantity on oil recovery cause very big influence, while reducing the use longevity of oil tool
Life is especially bigger on conventional plunger oil-well pump influence.Because crude oil is too high containing sand, content of wax composition, holddown is frequently resulted in
Phenomenon is frequently occurred, and pump plunger and barrel serious wear, well workover number of times is also continuously increased.
With continuing to develop for new science and technology art, it is desirable to oil production equipment instrument and device towards low cost, efficiently, simplify, just
In installation, maintenance, the multi-functional aspect development of a pump.
At present, traditional downhole oil extraction device all uses oil well pump, and oil well pump includes ectosome pump barrel, itself plunger and oil pipe
The parts such as joint, maintenance need to dismount whole oil well pump when changing, and ectosome pump barrel be risen out, installation and maintenance are cumbersome, and difficulty is big, increase
Plus operating cost；The relatively long not radial-telescopic of its own plunger, it is impossible to adapt to different size of sand grains, make sand grains collection
Middle alluvial is in ttom of pipe, frequent kelly；And manufacturing process complexity, body weight, function are single.In order to solve this problem in industry,
Special protection setting is all added, this not only adds cost for oil production, also increases labor intensity and workload.
Utility model content
The purpose of this utility model is to provide a kind of down-hole oil production elastic expansion plunger, solve oil field containing sand, gassiness,
The special crude oil production, easy to maintenance, sands-proof check, the simple function for the conventional pumps of changing over such as height is viscous.
To achieve the above object, the utility model provides a kind of down-hole oil production elastic expansion plunger, it is characterised in that：Including
Lower centralizer body, sleeve body, slip expansion post patch, elastic packing rubber packing, expansion post fork clip hoop, center-pole, upper centralizer body,
Center-pole outer wall is socketed with lower centralizer body, sleeve body, expansion post fork clip hoop, upper centralizer body, center-pole top successively from bottom to up
Provided with sucker rod screw thread, for connecting with pumping rod lower end screw thread, center-pole lower end is used to connect provided with sucker rod external screw thread pumps
Bar top screw thread, forms interval on a cavity, sleeve body excircle and is provided with some grooves, groove between sleeve body and center-pole
Provided with elastic packing rubber packing, slide expansion post patch and be enclosed on sliding sleeve in vitro, and slip expansion post patch upper end is placed in expansion
In the annular groove of plunger clip and sleeve body formation, lower end is placed in the annular groove of sleeve body lower stage terrace, upper centralizer body and
Lower centralizer body is multiple edge body, and expansion post fork clip hoop upper end opens cross v notch v and carries out oil extraction.
Further, described slip expansion post patch is split-type structural, some along center-pole circle distribution.
Advantage of the present utility model：
1st, the utility model technology has been broken the stroke caused by former traditional oil pumping barrel length constraint and limited, during lifting
Can be using flow string as pump barrel, no length limitation；
2nd, complete machine structure is simple, is easy to safeguard；
3rd, the bodily form is small, lightweight, and maximum outside diameter is 62 millimeters of φ, and total length is only 400 millimeters, unheavy, with a hand just
Can easily it lift；
4th, installation, maintenance simple and convenient is put into, flow string need not be extracted when simply safeguarding, sucker rod is only extracted,
Ground is released without Residual oil in tubing string, the pollution to environment is reduced；
5th, it is cheap, it is possible to decrease cost for oil production, increase oil recovery factory's economic benefit；
6th, because sliding expansion post patch rich in expansive force elasticity, sand card can be prevented.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is expansion post fork clip hoop cruciate flower v notch v structural representation；
Fig. 3 is the utility model lifting operation schematic diagram；
Fig. 4 is that the utility model declines operation schematic diagram.
Embodiment
Reference picture 1, Fig. 2, the utility model include lower centralizer body 1, sleeve body 2, slide expansion post patch 3, elastic packing
Rubber packing 4, expansion post fork clip hoop 5, center-pole 6, upper centralizer body 7, center-pole outer wall are socketed with lower righting successively from bottom to up
Body, sleeve body, expansion post fork clip hoop, upper centralizer body, center-pole top are used for connecting with pumping rod lower end spiral shell provided with sucker rod screw thread
Line, center-pole lower end, which is machined with external screw thread, is used for connecting with pumping rod top internal thread, is formed between sleeve body and center-pole
Interval, which is provided with 3 sections of grooves, groove, on chamber, sleeve body excircle is provided with elastic packing rubber packing, slides expansion post patch set
It is external in sliding sleeve, and slip expansion post patch upper end is placed in expansion post fork clip hoop and in the annular groove of sleeve body formation, lower end is put
In in the annular groove of sleeve body lower stage terrace, upper centralizer body and lower centralizer body are multiple edge body, and expansion post fork clip hoop upper end opens ten
Word flower-shape breach 8.Described slip expansion post patch is split-type structural, along center-pole circle distribution 5.
Reference picture 3, when the utility model is used to recover the oil, oil pipe 11 is preset in well, requires, will pump according to DP technology
Bar 9 is connected with the utility model upper end, during oil recovery, the center-pole 6 being connected with the lower end of sucker rod 9 can as oil production process transmission
Part, it drives lower centralizer body 1 to play a crucial role.When the drive center-pole 6 of sucker rod 9 is lifted upwards, lower centralizer body 1 is driven and sliding
The lower surface of body 2 is tightly connected, and at this moment lower cavity space 10 produces the pressure of negative pressure in addition in oil well by standing valve in the post of oil pipe 11
Interior sealing valve ball 12 is opened, and OIH liquid is by sand-proof pipe 14, and the ball seat 13 through valve ball 12 enters tubing string cavity, taken out
The stroke distance of beam hanger lifting is longer, and the fluid sunk is more, if at this moment there has been fluid on present apparatus top, with oil pumping
The continuous back and forth movement of bar, the fluid in oil pipe is discharged on well in oil pipeline by well head.
Reference picture 4, when sucker rod 9 is descending promotes center-pole 6 also descending therewith, due to sliding Expansion sealing plunger piece 3
In the presence of elastic packing rubber packing 4 and produce be radially expanded and the inner tubal wall of oil pipe 11 produce be fitted close and slip rub
Wipe, sealing function is difficult to follow lower centralizer body DL synchronization, so as to promote the lower surface of sleeve body 2 and the lower lower end emaciated face of centralizer body 1
From so as to generate clearance space, the axial groove of lower centralizer body loses sealing, in the descending pressure extrusion of lower centralizer body 1
Under, standing valve valve ball 12 falls to sealing, and the axial groove that the fluid that original is stored in lower cavity space 10 passes through lower centralizer body 1 is arranged
In the annular space for entering sleeve body 2 and center-pole 6, and during constantly descending, the fluid of annular space is again via expansion post
The open top of fork clip hoop 5 by the upper axial groove of centralizer body 7 enter upper cavity space 15, the change lifted afterwards with stroke, again
Fluid is lifted toward well head as in figure 1 and drawn, so lifts and draws repeatedly, most fluid is discharged into ground oil pipeline via well head at last,
Reach the purpose for production of recovering the oil.
Claims (2)
1. a kind of down-hole oil production elastic expansion plunger, it is characterised in that：Including lower centralizer body, sleeve body, slide expansion post patch,
Elastic packing rubber packing, expansion post fork clip hoop, center-pole, upper centralizer body, center-pole outer wall are socketed with down successively from bottom to up
Centralizer body, sleeve body, expansion post fork clip hoop, upper centralizer body, center-pole top are provided with sucker rod screw thread, under connecting with pumping rod
Screw thread is held, center-pole lower end is used for connecting with pumping rod top screw thread, shape between sleeve body and center-pole provided with sucker rod external screw thread
Into a cavity, on sleeve body excircle, interval, which is provided with some grooves, groove, is provided with elastic packing rubber packing, slides expansion post
Patch is enclosed on sliding sleeve in vitro, and slip expansion post patch upper end is placed in the annular groove that expansion post fork clip hoop is formed with sleeve body,
Lower end is placed in the annular groove of sleeve body lower stage terrace, and upper centralizer body and lower centralizer body are on multiple edge body, expansion post fork clip hoop
Open cross v notch v and carry out oil extraction in end.
2. down-hole oil production elastic expansion plunger according to claim 1, it is characterised in that：Described slip expansion post patch
It is some along center-pole circle distribution for split-type structural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720274930.5U CN206592107U (en) | 2017-03-21 | 2017-03-21 | Down-hole oil production elastic expansion plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720274930.5U CN206592107U (en) | 2017-03-21 | 2017-03-21 | Down-hole oil production elastic expansion plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206592107U true CN206592107U (en) | 2017-10-27 |
Family
ID=60123617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720274930.5U Expired - Fee Related CN206592107U (en) | 2017-03-21 | 2017-03-21 | Down-hole oil production elastic expansion plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206592107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578496A (en) * | 2019-09-19 | 2019-12-17 | 梅小军 | low-friction well head oil pumping device |
-
2017
- 2017-03-21 CN CN201720274930.5U patent/CN206592107U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578496A (en) * | 2019-09-19 | 2019-12-17 | 梅小军 | low-friction well head oil pumping device |
| CN110578496B (en) * | 2019-09-19 | 2021-12-31 | 山东创新石油技术有限公司 | Low-friction well head oil pumping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190107 Address after: 131300 Linjiang Street 157, Daan City, Baicheng City, Jilin Province Patentee after: Daan Hongyuan Pipe Industry Co Ltd Address before: 131399 No. 157 Nenjiang North Street, Da'an City, Baicheng City, Jilin Province Patentee before: Da'an City Guangyuan petroleum Fittings Co. Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 Termination date: 20190321 |