CN207393447U - A kind of sand-preventing scale-preventing plunger oil-well pump - Google Patents
A kind of sand-preventing scale-preventing plunger oil-well pump Download PDFInfo
- Publication number
- CN207393447U CN207393447U CN201820257210.2U CN201820257210U CN207393447U CN 207393447 U CN207393447 U CN 207393447U CN 201820257210 U CN201820257210 U CN 201820257210U CN 207393447 U CN207393447 U CN 207393447U
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- CN
- China
- Prior art keywords
- plunger
- preventing
- sand
- oil
- pump barrel
- Prior art date
- 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
Links
- 239000003129 oil well Substances 0.000 title claims abstract description 44
- 238000004062 sedimentation Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 10
- 239000012535 impurity Substances 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 29
- 238000004519 manufacturing process Methods 0.000 description 13
- 239000004576 sand Substances 0.000 description 11
- 238000004140 cleaning Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000002156 adsorbate Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a kind of sand-preventing scale-preventing plunger oil-well pumps, and including pump barrel, plunger, inlet valve and delivery valve, the inlet valve is mounted on the lower end of the pump barrel, and the plunger bushing is mounted in the inside of the pump barrel, and the delivery valve is mounted on the plunger；Sedimentation annular groove is also circumferentially provided on the outer wall of the plunger, multiple functional rings are installed in the sedimentation annular groove, multiple functional rings are in gap setting, and the functional ring is used to coordinate to clear up fine silt, layer of scale with the inner wall of pump barrel.By setting functional ring in outer plunger surface so that effectively clear up the fine silt, the layer of scale that adsorb on pump barrel when plunger moves back and forth in pump barrel, effectively prevent objectionable impurities holddown, accordingly extend the pump detection and workover cycle.
Description
Technical field
The utility model belongs to technical field of petroleum extraction more particularly to a kind of sand-preventing scale-preventing plunger oil-well pump.
Background technology
Sucker rod pumping be one of traditional oil production method of world today's petroleum industry and so far in petroleum production engineering always
Prevailing artificial lift mode at home and abroad in the producing well in each oil field, has bar oil recovery technique occupation rate to be up to 80%
More than, the 75% of crude output is by there is bar mechanical oil production system output.With domestic and international exploration and development investment not
Disconnected to increase, " three take out " equipment needed for oil well also increases in proportion, and oil well pump product belongs to easily-consumed products in " three take out ", substantially
It is needed replacing using a production cycle, therefore the oil well pump product of domestic and international each annual demand in oil field is used in rising and
Gesture.With the passage of mining time, more than 60% has been enter into production phase middle and later periods in domestic and international each existing production well in oil field,
Oil well condition environment worse and worse, in oil well stratum oil-producing section occur in succession hypotonic low energy, High water cut, shake out, wax deposition, fouling
Phenomena such as, in addition pollution of artificial measures's (pressure break, acidifying, well-flushing) to stratum, certainly will generate extremely not mechanical oil production system
The influence of profit, ultimately resulting in the pump detection and workover cycle in mechanical oil production system is obviously shortened, and workover treatment cost accordingly increases.
According to incompletely statistics, Jilin Oil Field at home shakes out in about 80% production well, causes machine in various degree
Tool oil extraction system holddown, sand bury, eccentric wear breaks, and the abnormal accidents frequency such as bar substantially increases, and seriously constrain normal production production of recovering the oil
Amount, while operating cost is accordingly added again.Liaohe Oil Field Jinzhou oil recovery factory is steam soak block, answers High water cut, fouling, goes out
The influences such as sand, the pump detection and workover cycle is generally at 210 days or so.North China Oilfield is recovered the oil two factories, and extremely strong corrosivity is contained in oil well
Medium, pump upper valve pair service life just failed less than 90 days, and the pump detection and workover cycle is extremely short.In luling oil extraction in oil field area of the U.S.
Block, because stepping into later stage exploitation, the pump detection and workover cycle of more serious (the being mostly fine silt) block of sand production is only 180 days left sides
It is right.
Therefore, on conventional oil well pump application foundation, the oil well pump product adapted under different oil well conditions is developed, with
Sustained improvement oil well pump critical component (pump barrel, plunger, the selection of valve ball valve seat are with combining, valve bonnet structure optimization etc.) adaptability carries
It rises oil well pump product reliability, had become a top priority with meeting oil well condition (shake out, structure, corrosion etc.) individual demand.
Therefore, for above deficiency, the utility model is badly in need of providing a kind of sand-preventing scale-preventing plunger oil-well pump.
Utility model content
The purpose of this utility model is to provide a kind of sand-preventing scale-preventing plunger oil-well pump, to be directed to the characteristic of sand well,
Extend the pump detection and workover cycle to greatest extent.
The utility model provides following proposal：
A kind of sand-preventing scale-preventing plunger oil-well pump, including pump barrel, plunger, inlet valve and delivery valve, the inlet valve is mounted on
The lower end of the pump barrel, the plunger bushing are mounted in the inside of the pump barrel, and the delivery valve is mounted on the plunger；The column
Also be circumferentially provided with sedimentation annular groove on the outer wall of plug, multiple functional rings be installed in the sedimentation annular groove, for in pump barrel
Wall coordinates to clear up fine silt, layer of scale.
A kind of sand-preventing scale-preventing plunger oil-well pump as described above, further preferably, multiple functional rings are set in gap
It puts.
A kind of sand-preventing scale-preventing plunger oil-well pump as described above, further preferably, between adjacent two functional ring
The width in gap is more than or equal to the width of single only described functional ring.
A kind of sand-preventing scale-preventing plunger oil-well pump as described above, further preferably, in the functional ring and the pump barrel
The both ends of wall contact surface are right angle.
A kind of sand-preventing scale-preventing plunger oil-well pump as described above, further preferably, the functional ring selects nylon material
It is made.
A kind of sand-preventing scale-preventing plunger oil-well pump as described above, further preferably, the delivery valve include the first travelling
Valve and the second travelling valve, first travelling valve and second travelling valve are separately positioned on the both ends of the plunger, and described
The structure of one travelling valve is identical with the described second travelling valve arrangement.
A kind of sand-preventing scale-preventing plunger oil-well pump as described above, further preferably, the plunger is interior with the pump barrel
Wall clearance fit.
A kind of sand-preventing scale-preventing plunger oil-well pump as described above, further preferably, the functional ring and the pump barrel
Inner wall is interference fitted.
The utility model discloses a kind of sand-preventing scale-preventing plunger oil-well pump, including pump barrel, plunger, inlet valve and delivery valve,
The inlet valve is mounted on the lower end of the pump barrel, and the plunger bushing is mounted in the inside of the pump barrel, and the delivery valve is mounted on
On the plunger；Sedimentation annular groove is also circumferentially provided on the outer wall of the plunger, multiple functions are installed in the sedimentation annular groove
Ring, multiple functional rings are in gap setting, for coordinating to clear up fine silt, layer of scale with the inner wall of pump barrel.By in column
Outer surface sets functional ring so that when plunger moves back and forth in pump barrel by fine silt of the absorption on pump barrel, layer of scale into
The effective cleaning of row, effectively prevents objectionable impurities holddown, accordingly extends the pump detection and workover cycle.
Description of the drawings
Fig. 1 is a kind of switch plunger structure diagram of sand-preventing scale-preventing plunger oil-well pump in the utility model.
Reference sign：
1- plungers, 2- sedimentation annular grooves, 3- functional rings.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected scope.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
As shown in Figure 1, present embodiment discloses a kind of sand-preventing scale-preventing plunger 1 for oil well pump, including pump barrel, plunger 1,
Inlet valve and delivery valve, inlet valve are mounted on the lower end of pump barrel, and plunger 1 is sleeved on the inside of pump barrel, and delivery valve is mounted on plunger 1
On；On the outer wall of plunger 1 also be circumferentially provided with sedimentation annular groove 2, it is described sedimentation annular groove 2 in multiple functional rings 3 are installed, for
The inner wall of pump barrel coordinates to clear up fine silt, layer of scale.Further, multiple functional rings 3 are in gap setting, for storing
Fine silt, layer of scale.In the present embodiment, by setting functional ring 3 in 1 outer surface of plunger so that plunger 1 is back and forth transported in pump barrel
The fine silt, the layer of scale that adsorb on pump barrel are effectively cleared up when dynamic；And the gap between functional ring 3 can then store
The sundries such as fine silt, the dirty piece cleared up by functional ring 3；Objectionable impurities holddown is effectively prevented, accordingly extends pump detection and workover week
Phase.
In oil recovery field application, 1 upper end of plunger is connected with sucker rod, and sucker rod and pumping unit pass through polished rod and polished rod eye
Docking is connected, and pump barrel is fixed or setting on oil pipe column.It during work, moves up and down by pumping unit burner, realizes oil pick-up tube
Plunger 1 is driven to do reciprocating linear movement in pump barrel.During upstroke, the lower pump chamber increase below plunger 1, pressure reduces,
Negative pressure is formed, inlet valve is opened under upper and lower differential pressure action, and crude oil enters lower chambers in pit shaft, and simultaneously, delivery valve is at it
It is closed under upper and lower differential pressure action, the crude oil in upper pump chamber above plunger 1 is discharged to ground along oil pipe endoporus.Similarly, under oil pick-up tube
During stroke, plunger 1 compresses the crude oil between inlet valve and delivery valve, and inlet valve is closed, and delivery valve is opened, lower pump chamber crude oil
Into upper pump chamber, oil is rushed into oil pipe column.Therefore, pumping by sucker rod drives plunger 1 to make in pump barrel
It moves back and forth, so in cycles, repeats to cycle, realize the effect of mechanical oil recovery production.In above process, pump
During bar upstroke, the dirty sand adsorbate of 3 scraping pump barrel upper inside wall of functional ring realizes the function of clearing up pump barrel inner surface；Oil pumping
During bar down stroke, the dirty sand adsorbate in 3 scraping pump barrel lower inner wall of functional ring clears up pump barrel inner surface, remains plunger 1
Sealing effect between pump barrel stablizes pump efficiency.Meanwhile the dirty sand adsorbate chipped away is scraped for 1 upper and lower stroke of plunger,
Dirty sand holddown problem in gap trenches between automatic storage functional ring 3, will be effectively prevented, disclosure satisfy that containing dirty sand medium
Oil machinery recover the oil, so as to extend the pump detection and workover cycle of oil well.
As shown in Figure 1, in a kind of 1 oil well pump of sand-preventing scale-preventing plunger disclosed in the present embodiment, the functional ring 3 is selected
Nylon material is made；Further, the both ends of functional ring 3 and pump barrel inner wall contact surface are right angle.In the present embodiment, functional ring
3 are used for by wiping fine silt and layer of scale on pump barrel inner wall with the inner wall reciprocating friction of pump barrel, and stiff materials are made at this time
Functional ring 3 be easy to cause the abrasion of pump barrel inner wall, and excessively soft material can not play cleaning action, therefore, this reality
Example is applied using nylon material, the advantages of nylon is most prominent be wearability higher than other all high molecular materials, than cotton wearability
It is 10 times high, it is 20 times higher than wool；When being stretched to 3-6%, elastic recovery rate is up to 100%；Be amenable to foldings up to ten thousand time scratch without
Fracture, for that can play its material property well herein, can achieve the purpose that cleaning, while also not destroy oil well pump sheet
Body structure.And right angle is set then by increasing the acuity increase cleaning effect of structure, and absorption is removed in pump barrel using wedge angle
Obstinate layer of scale on inner wall, reaches better cleaning effect.
As shown in Figure 1, in a kind of 1 oil well pump of sand-preventing scale-preventing plunger disclosed in the present embodiment, adjacent two functional ring 3 it
Between the width in gap be more than or equal to the width of single functional ring 3.The reciprocating motion of plunger 1, functional ring 3 also clear up pump barrel simultaneously
Inner wall, during this, the fine silt and layer of scale of cleaning are stored in the gap between functional ring 3, due to accumulating over a long period, clearly
The objectionable impurities of reason is more, it is necessary to larger parking space, for this purpose, in the present embodiment, gap between adjacent two functional ring 3
Width is more than or equal to the width of single functional ring 3, for storing the impurity of pump barrel inner wall in the time between overhauls(TBO).
As shown in Figure 1, in a kind of 1 oil well pump of sand-preventing scale-preventing plunger disclosed in the present embodiment, delivery valve includes first
Travelling valve and the second travelling valve, the first travelling valve and the second travelling valve are separately positioned on the both ends of plunger 1, the knot of the first travelling valve
Structure is identical with the second travelling valve arrangement.
As shown in Figure 1, in a kind of 1 oil well pump of sand-preventing scale-preventing plunger disclosed in the present embodiment, plunger 1 is interior with pump barrel
Wall clearance fit, functional ring 3 and the inner wall of pump barrel are interference fitted.In the present embodiment, the length of the sedimentation annular groove 2 residing for functional ring 3
Degree is longer, is equivalent to the 60-90% of 1 entire length of plunger, is used to implement cleaning effect, while plunger 1 and pump barrel is avoided to forge iron
It wears, plunger 1 and pump barrel are gap-matched in the present embodiment, and functional ring 3 and pump barrel are using interference fit.
Compared with prior art, a kind of sand-preventing scale-preventing plunger oil-well pump disclosed in the utility model has below beneficial to effect
Fruit:
1st, in the utility model, by setting functional ring 3 so that can exist when plunger 1 moves back and forth in pump barrel to absorption
Fine silt and layer of scale on pump barrel inner wall are effectively cleared up, and avoid impurity hardened on pump barrel, cause mechanical oil recovery system
System holddown, sand bury, eccentric wear breaks the abnormal accidents such as bar, extension pump detection and workover cycle；
2nd, in the utility model, gap is provided between adjacent two functional ring 3, for store cleared up by functional ring 3 it is thin
The sundries such as flour sand, dirty piece effectively maintain pump barrel and the cleaning of 1 sealing pair of plunger, lubrication good working order.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from this practicality newly
The scope of each embodiment technical solution of type.
Claims (8)
1. a kind of sand-preventing scale-preventing plunger oil-well pump, which is characterized in that including pump barrel, plunger, inlet valve and delivery valve, the oil inlet
Valve is mounted on the lower end of the pump barrel, and the plunger bushing is mounted in the inside of the pump barrel, and the delivery valve is mounted on the plunger
On；Sedimentation annular groove is also circumferentially provided on the outer wall of the plunger, multiple functional rings, the work(are installed in the sedimentation annular groove
Energy ring is used to coordinate to clear up fine silt, layer of scale with the inner wall of pump barrel.
2. a kind of sand-preventing scale-preventing plunger oil-well pump according to claim 1, which is characterized in that between multiple functional rings are in
Gap is set.
3. a kind of sand-preventing scale-preventing plunger oil-well pump according to claim 2, which is characterized in that adjacent two functional ring it
Between the width in gap be more than or equal to the width of single only described functional ring.
4. a kind of sand-preventing scale-preventing plunger oil-well pump according to claim 1 or 2, which is characterized in that the functional ring and institute
The both ends for stating pump barrel inner wall contact surface are right angle.
5. a kind of sand-preventing scale-preventing plunger oil-well pump according to claim 1 or 2, which is characterized in that the functional ring is selected
Nylon material is made.
6. a kind of sand-preventing scale-preventing plunger oil-well pump according to claim 1 or 2, which is characterized in that the delivery valve includes
First travelling valve and the second travelling valve, first travelling valve and second travelling valve are separately positioned on the two of the plunger
End, the structure of first travelling valve are identical with the described second travelling valve arrangement.
7. a kind of sand-preventing scale-preventing plunger oil-well pump according to claim 1 or 2, which is characterized in that the plunger with it is described
The inner wall clearance fit of pump barrel.
8. a kind of sand-preventing scale-preventing plunger oil-well pump according to claim 7, which is characterized in that the functional ring and the pump
The inner wall interference fit of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820257210.2U CN207393447U (en) | 2018-02-13 | 2018-02-13 | A kind of sand-preventing scale-preventing plunger oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820257210.2U CN207393447U (en) | 2018-02-13 | 2018-02-13 | A kind of sand-preventing scale-preventing plunger oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393447U true CN207393447U (en) | 2018-05-22 |
Family
ID=62324401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820257210.2U Expired - Fee Related CN207393447U (en) | 2018-02-13 | 2018-02-13 | A kind of sand-preventing scale-preventing plunger oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393447U (en) |
-
2018
- 2018-02-13 CN CN201820257210.2U patent/CN207393447U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tiu Yingze Inventor before: Yun Yingjie |
|
| 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: 20180522 |