CN206377019U - Low-leakage, anti-scaling and sand-blocking oil well pump plunger without traveling valve - Google Patents
Low-leakage, anti-scaling and sand-blocking oil well pump plunger without traveling valve Download PDFInfo
- Publication number
- CN206377019U CN206377019U CN201621408637.5U CN201621408637U CN206377019U CN 206377019 U CN206377019 U CN 206377019U CN 201621408637 U CN201621408637 U CN 201621408637U CN 206377019 U CN206377019 U CN 206377019U
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- Prior art keywords
- plunger
- oil
- pump
- sand
- antiscale
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- 239000003129 oil well Substances 0.000 title abstract description 28
- 239000004576 sand Substances 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 230000008602 contraction Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 40
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000001976 improved effect Effects 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 3
- 239000010779 crude oil Substances 0.000 abstract 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000009096 changqing Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a plunger of an oil well pump without a traveling valve, which has low leakage, scale prevention and sand blocking, and comprises a plunger and a plunger center connecting rod sleeved in the plunger, wherein the front end of the plunger center connecting rod is connected with a hemispherical valve ball, and the inner side of the front end of the plunger is provided with a hemispherical valve seat matched with the hemispherical valve ball; the rear end of the plunger center connecting rod extends out of the plunger, and the tail end of the plunger center connecting rod is provided with a plunger centering block. The utility model discloses on the basis that does not change the original production system structure of mechanical production well, can effectively stop because of the oil-well pump trouble that sand card, dirt card caused, improve crude oil output. After the novel traveling valve-free low-leakage, anti-scaling and sand-blocking oil well pump plunger is predicted to be popularized and applied, on one hand, the well repair operation frequency caused by pump faults can be greatly reduced, the well repair cost is saved, and the service life of the oil well pump is prolonged; on the other hand, the normal production of the oil well is ensured, and the yield of crude oil is improved; has important practical significance for the low-cost and high-efficiency development of oil fields.
Description
【Technical field】
The utility model is related to one kind without the mistake of travelling valve low drain, antiscale, sand card oil pump plunger piston.
【Background technology】
Changqing oilfields are due to the " three-lows " characteristic of itself " hypotonic ", " low pressure " and " low abundance ", on a large scale using hyposmosis
Oil reservoir development pattern, main to use oil pumper sucker rod pump mechanical oil recovery artificial lifting way because its well yield is relatively low, oil well pump is
The key link of computer collecting system operation, is the unique channel that in-place oil is given rise to ground, number of applications is huge.With long celebrating oil
Exemplified by field, by the end of the year 2015, oil well drives a well more than 4.9 ten thousand mouths, wherein the oil well recovered the oil using rod pumping pump is up to more than 4.8 ten thousand
Mouthful.
In oil well production process, with the mechanical movement of oil pumper, oil pump plunger piston is driven to occur daily in pump barrel
Thousands of reciprocating motions, ground is continually lifted to by oil stream, as oil field development enters sub-sand grain in the middle part of middle and later periods, stratum
And landwaste can enter between oil pumping barrel and plunger with oil stream, sand card be caused when serious, water incompatible oil well in stratum occurs
Dirt card.Before pump is not stuck also completely, the relative motion of plunger and pump barrel can cause plunger surface and pump barrel inner surface scratch wound,
Substantial amounts of scuffing declines pump efficiency, results even in oil well pump and thoroughly fails.The frequent failure of oil well pump causes workover treatment to work
Amount is significantly increased with cost, has a strong impact on normal production.Simultaneously because there is gap between pump barrel and plunger, leakage, shadow are caused
Ring crude output.Driven a well 4.9 ten thousand mouthfuls according to oil well, there is sand card, the well of dirt card and account for the 1/10 of total well number, average individual well because of pump therefore
Hinder 1 times/year of well workover, 1.4 ten thousand yuan of single operation funds are estimated, be averaged 4 days/time of well workover off-time, year workover cost about
68600000 yuan, stop the well time year 1.96 ten thousand days, lose 2.94 ten thousand tons of crude output.
Effectively to solve high frequency workover treatment caused by sand card, dirt card, crude output is improved, normal production requirement is ensured,
It is badly in need of the oil pump plunger piston that a kind of new antiscale of research and development, sand card and low drain are lost, alleviates above contradiction.
【Utility model content】
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art to lose, prevent without travelling valve low drain there is provided one kind
Dirt, sand card oil pump plunger piston, the oil pump plunger piston have bar oil recovery conventional tube oil pumping pump plunger shaft primarily directed to current domestic commonly use
Plug in occurring thousands of reciprocal operations daily, because sand card and dirt card cause oil well pump to fail in pump barrel, and low jig frequency bar
Part lower plunger and pump barrel gap leakage it is big influence crude output the problem of.
To reach above-mentioned purpose, the utility model is achieved using following technical scheme：
One kind is without the mistake of travelling valve low drain, antiscale, sand card oil pump plunger piston, including plunger, and the post being sheathed in plunger
Center rod is filled in, the front end connection hemisphere valve ball of plunger center rod, the leading inside setting of plunger is engaged with hemisphere valve ball
Hemisphere valve seat；Plunger is stretched out in the rear end of plunger center rod, and end sets plunger wiper block.
The utility model, which is further improved, to be：
Plunger seal ring is arranged on the outside of plunger.
At least one pressure guide hole is opened up on the plunger sidewall for being set with plunger seal ring.
Offered on the shaft at the side of plunger wiper block and the rear portion of plunger center rod for improving liquid entrance
The guiding gutter of flow velocity during plunger.
The rear end connection top connection of plunger wiper block.
Plunger seal ring is made up of high intensity carbon fiber material, during plunger up stroke, and plunger seal ring is in expansion
State；During down stroke, plunger seal ring is in contraction state.
Compared with prior art, the utility model has the advantages that：
The utility model on the basis of the original operation system structure of machine-pumped oil well is not changed, can effectively prevent because sand card,
The oil pumping failure of pump that dirt card is caused, improves crude output.It is expected that new without the mistake of travelling valve low drain, antiscale, sand card oil pump plunger piston
After popularization and application, the workover treatment frequency caused by failure of pump on the one hand can be substantially reduced, workover cost, extension oil pumping is saved
Pump service life；On the other hand ensured that oil well is normally produced, improved crude output；Have to the exploitation of oil field low-cost high-efficiency
Important realistic meaning.
The preferred novel high-strength carbon fiber material of the utility model, manufactures and designs plunger seal ring complexed metal oil pumping pump plunger shaft
Plug, is in using the pressure official post oil pump plunger piston sealing ring produced in up-down stroke pump barrel and shunk or expansion state, solve to take out
In pit shaft sand card, dirt card and hydraulic slip occur for oil pump between plunger and pump barrel in running the problem of.Meanwhile, design is solid
Fixed pattern semisphere valve ball valve seat, effectively solves oil well pump air-lock problem.So as to reach the effectively reduction workover treatment frequency, pump is improved
Effect, reduces workover treatment expense, improves the purpose of yield.
【Brief description of the drawings】
Fig. 1 is overall structure diagram of the present utility model.
Wherein：1- hemisphere valve balls；2- hemisphere valve seats；3- plunger center rods；4- plungers；5- plunger seal rings；6- plungers
Wiper block；7- guiding gutters；8- top connections.
【Embodiment】
The utility model is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1, the utility model includes plunger 4, Yi Jitao without the mistake of travelling valve low drain, antiscale, sand card oil pump plunger piston
Plunger center rod 3 in plunger 4, the front end connection hemisphere valve ball 1 of plunger center rod 3, the leading inside of plunger 4 is set
The hemisphere valve seat 2 being engaged with hemisphere valve ball 1 is put, the outside of plunger 4 is arranged plunger seal ring 5, and is set with plunger seal ring 5
At least one pressure guide hole is opened up on the side wall of plunger 4；Plunger 4 is stretched out in the rear end of plunger center rod 3, and end sets plunger righting
Offered on the shaft at block 6, the side of plunger wiper block 6 and the rear portion of plunger center rod 3 and enter post for improving liquid
The guiding gutter 7 of flow velocity during plug, the rear end connection top connection 8 of plunger wiper block 6.
The utility model mainly solves oil well pump and occurs sand card, dirt in running between plunger and pump barrel in pit shaft
The problem of wastage is big under the conditions of card and low jig frequency, has bar oil recovery conventional tube oil pumping pump plunger shaft primarily directed to current domestic commonly use
Plug in occurring thousands of reciprocal operations daily, because sand card and dirt card cause oil well pump frequently to be repaiied caused by failing in pump barrel
Well, and the problem of plunger under the conditions of compared with low jig frequency and pump barrel gap leaking loss influence crude output.The utility model uses one
Novel semi ball valve ball valve seat, and Novel oil well pump plunger seal ring combination metal plunger are planted, and coordinates conventional tube oil well pump
Pump barrel, the pressure official post oil pump plunger piston sealing ring produced in pump barrel, which is in, to be shunk or expands using oil well pump in the process of running
The state of opening, so that solve oil well pump occurs asking for sand card, dirt card and leakage in pit shaft between plunger and pump barrel in running
Topic.Reduction failure of pump is reached, extends oil well pump service life, the purpose that oil well is normally produced is ensured.
Plunger seal ring, is made of a kind of novel high-strength carbon fiber material, with wear-resisting, pliability is strong, rub system
The low characteristic of number.More traditional oil pump plunger piston wearability is greatly enhanced.The more original travelling valve ball valve seat of novel semi ball valve ball valve seat,
It is advantageous that novel semi ball valve ball valve seat design structure is more stable, be not in that traditional oil pump plunger piston moves about in operation
Valve valve ball valve bonnet frequently hits the shelf life of the valve ball valve bonnet breakage caused and fracture, effectively extension valve ball valve bonnet.Plunger is adopted
Designed with the long pump barrel of short-plunger, reduce plunger and pump barrel contact area, effectively reduced sand card column plug, pump barrel and plunger, shape is sanded
Depart from the phenomenons such as pump barrel into plunger during larger stroke.The design of semisphere valve ball valve seat is thoroughly solved using the operation of strong open/close machinery
Oil well pump air-lock problem, improves pumping efficiency of oil pump.With reference to flow regime of the liquid in pit shaft, liquid is used when entering plunger
The design of novel guide groove carries out water conservancy diversion, improves flow velocity, reduces liquid flowing resistance.
Plunger seal ring is mainly made of a kind of high intensity carbon fiber material, with wear-resisting, pliability is strong, coefficient of friction
Low characteristic.Plunger seal ring set is on metal oil pump plunger piston, supporting fixed semisphere valve and valve seat.Plunger up stroke process
In, plunger seal ring is in expansion state, effectively reduction leakage.In down stroke, plunger seal ring is in contraction state, reduces post
While filling in friction in down stroke, it is to avoid dirt, sand etc. between foreign body retention pump plunger, pump barrel cause holddown in pit shaft.
Operation principle of the present utility model：
Be conventional tube oil pump sleeve with the pump barrel of the supporting application of the utility model plunger, when going into the well plunger top connection with
Rod string connecting rod passes through screwed connection；When plunger down stroke, semisphere valve is opened, and pump liquid within the cartridge is by plunger 4, plunger center
Connecting rod annular space is discharged into oil pipe through guiding gutter (red arrow direction), now pump cylinder pressure and pressure balance (plunger in oil pipe
Sealing ring internal and external pressure balance), plunger seal ring is in contraction state, there is space between sealing ring and pump barrel inwall, reduces
While plunger friction in down stroke, it is to avoid dirt, sand etc. between foreign body retention pump plunger, pump barrel cause holddown in pit shaft；
In pump plunger up stroke, semisphere valve is closed, and now because plunger oils under the effect of liquid in pipe pressure, makes plunger
Sealing ring internal pressure is significantly increased, and is caused plunger seal ring to be expanded under the effect of pilot pore pressure force, is made plunger seal ring tightly
It is attached on pump barrel inwall, wastage is significantly reduced in the oil well pump course of work；Because scraping is acted between plunger seal ring and pump barrel,
It can effectively prevent pump barrel inwall from occurring scale formation, and its upper end liquid is lifted to ground.
Above content is only explanation technological thought of the present utility model, it is impossible to limit protection model of the present utility model with this
Enclose, it is every according to the utility model proposes technological thought, any change done on the basis of technical scheme each falls within this reality
Within protection domain with new claims.
Claims (6)
1. one kind is without the mistake of travelling valve low drain, antiscale, sand card oil pump plunger piston, it is characterised in that including plunger (4), and be arranged
In the plunger center rod (3) in plunger (4), the front end of plunger center rod (3) is connected before hemisphere valve ball (1), plunger (4)
End inner side sets the hemisphere valve seat (2) being engaged with hemisphere valve ball (1)；Plunger (4) is stretched out in the rear end of plunger center rod (3),
And end sets plunger wiper block (6).
2. it is according to claim 1 without the mistake of travelling valve low drain, antiscale, sand card oil pump plunger piston, it is characterised in that plunger
(4) plunger seal ring (5) is arranged on the outside of.
3. it is according to claim 1 without the mistake of travelling valve low drain, antiscale, sand card oil pump plunger piston, it is characterised in that suit post
At least one pressure guide hole is opened up on plunger (4) side wall of plug sealing ring (5).
4. it is according to claim 1 without the mistake of travelling valve low drain, antiscale, sand card oil pump plunger piston, it is characterised in that plunger is helped
Offered on the shaft at the side of positive block (6) and the rear portion of plunger center rod (3) for improving liquid into during plunger
The guiding gutter (7) of flow velocity.
5. it is according to claim 1 without the mistake of travelling valve low drain, antiscale, sand card oil pump plunger piston, it is characterised in that plunger is helped
The rear end connection top connection (8) of positive block (6).
6. it is according to claim 1 without the mistake of travelling valve low drain, antiscale, sand card oil pump plunger piston, it is characterised in that plunger is close
Seal ring (5) is made up of high intensity carbon fiber material, during plunger (4) up stroke, and plunger seal ring (5) is in expansion state；
During down stroke, plunger seal ring (5) is in contraction state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621408637.5U CN206377019U (en) | 2016-12-20 | 2016-12-20 | Low-leakage, anti-scaling and sand-blocking oil well pump plunger without traveling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621408637.5U CN206377019U (en) | 2016-12-20 | 2016-12-20 | Low-leakage, anti-scaling and sand-blocking oil well pump plunger without traveling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206377019U true CN206377019U (en) | 2017-08-04 |
Family
ID=59408001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621408637.5U Active CN206377019U (en) | 2016-12-20 | 2016-12-20 | Low-leakage, anti-scaling and sand-blocking oil well pump plunger without traveling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206377019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111625757A (en) * | 2020-06-09 | 2020-09-04 | 承德石油高等专科学校 | Algorithm for predicting single-well yield of digital oil field |
-
2016
- 2016-12-20 CN CN201621408637.5U patent/CN206377019U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111625757A (en) * | 2020-06-09 | 2020-09-04 | 承德石油高等专科学校 | Algorithm for predicting single-well yield of digital oil field |
| CN111625757B (en) * | 2020-06-09 | 2024-03-01 | 承德石油高等专科学校 | Algorithm for predicting single well yield of digital oil field |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |