CN208330692U - Oil-well pump and oil pumping system - Google Patents
Oil-well pump and oil pumping system Download PDFInfo
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- CN208330692U CN208330692U CN201820639714.0U CN201820639714U CN208330692U CN 208330692 U CN208330692 U CN 208330692U CN 201820639714 U CN201820639714 U CN 201820639714U CN 208330692 U CN208330692 U CN 208330692U
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- pump barrel
- oil
- pump
- oil well
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- 239000003129 oil well Substances 0.000 title claims abstract description 87
- 238000005086 pumping Methods 0.000 title claims abstract description 28
- 239000000446 fuel Substances 0.000 claims description 22
- 230000005526 G1 to G0 transition Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 42
- 238000010586 diagram Methods 0.000 description 10
- 230000005484 gravity Effects 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- OFNHPGDEEMZPFG-UHFFFAOYSA-N phosphanylidynenickel Chemical compound [P].[Ni] OFNHPGDEEMZPFG-UHFFFAOYSA-N 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides an oil-well pump and oil pumping system, oil-well pump include that plunger and cover establish the pump barrel in the plunger outside, and the lower part of plunger is equipped with the inlet port, and the upper portion of plunger is equipped with the oil outlet, and the upper end of plunger links to each other with the sucker rod, and the plunger can reciprocate along the pump barrel under the drive of sucker rod, and when the plunger removed the lower extreme position, the oil outlet was located the top of pump barrel. The utility model discloses a when making the plunger remove lower extreme position, the oil outlet on the plunger still is located the top of pump barrel to guarantee that the silt that contains in the fluid that the oil outlet flows is difficult for falling into between plunger and the pump barrel, prevented the emergence of oil-well pump card pump phenomenon, improved production efficiency.
Description
Technical field
The utility model relates to oil exploitation technology more particularly to a kind of oil well pumps and oil pumping system.
Background technique
China can exploit petroleum resources and largely be imbedded in earth's surface 5000m hereinafter, belonging to deep-well, ultra-deep well operations scope,
The exploration and development of Deep Oil And Gas Exploration resource is the main path realizing oilfield Resources Strategy and taking over, greatly develops deep-well, ultra-deep
Well drilling technology is both the needs of exploration and development and the needs of active adaption drilling engineering technological service market competition.Oil pumping
Pump is also referred to as deep well pump, is deep-well, the capital equipment in ultradeep well oil pumping system, oil well pump can pass through pumping unit, sucker rod passes
The power passed carries out the pumping of liquid in oil well.
In the prior art, oil well pump generally comprises sucker rod, pump barrel, standing valve and plunger, and trip is wherein equipped in plunger
The outside of dynamic valve, plunger is equipped with pump barrel, and pump barrel length is generally far larger than the length of plunger.In oil pumping operation, plunger exists
It moves up and down under the drive of sucker rod along pump barrel.Travelling valve of the plunger when moving upwards in it is closed, oil-well pump bottom
Standing valve is opened, so that oil liquid enters in oil well pump；When travelling valve opening of the plunger when moving downward in it, oil well pump
The standing valve of bottom is closed, and oil liquid is discharged through the oil outlet of plunger upper part, to realize the exploitation of oil liquid.
But generally locating geological environment is severe in China oil field, deep-well, the salinity of ultradeep well oilfield and corrosion energy
Power is strong, be often accompanied by exploitation shake out and the case where fouling, especially shake out in the Carbonate Reservoir stratum of barefoot completion, oil
Mud and scale formation are more obvious, at this point, according to scheme in the prior art, since to be far longer than plunger long for its pump barrel length
Degree, for plunger in operation always situated in pump barrel, silt contained in the oil liquid of plunger extraction can be deposited on pump by gravity
Between cylinder and plunger, prolonged sedimentation easily causes the generation of holddown phenomenon, seriously affects mining progress.
Utility model content
In order to overcome the drawbacks described above under the prior art, the purpose of this utility model is to provide a kind of oil well pump and oil pumping
System, for its plunger of the oil well pump of the utility model when moving up and down along pump barrel, the oil outlet on plunger is always positioned at pump barrel
Top, so that silt contained in oil liquid is not easy to fall between plunger and pump barrel, it is therefore prevented that the hair of oil well pump holddown phenomenon
It is raw, improve production efficiency.
The utility model provides a kind of oil well pump, including plunger and the pump barrel being set on the outside of the plunger, the plunger
Lower part be equipped with fuel feed hole, the top of the plunger is equipped with oil outlet, and the upper end of the plunger is connected with sucker rod, the plunger
Can the pump barrel described in the drive lower edge of the sucker rod move up and down, and when the plunger is moved to lower limit position, it is described go out
Oilhole is located at the top of the pump barrel.
Oil well pump as described above, optionally, the outside of the pump barrel are also arranged with outer tube, the pump barrel and the outer tube
Between be formed with annular gap.
Oil well pump as described above is optionally equipped with centralizer, the two sides point of the centralizer in the annular gap
It is not connected on the lateral surface of the pump barrel and the medial surface of the outer tube, the centralizer is equipped with through-hole, and the through-hole is used
It is located at the annular gap of the annular gap and lower section above the centralizer in connection.
Oil well pump as described above, optionally, the upper surface of the centralizer tilt down, and inclined direction is towards described outer
Pipe side.
Oil well pump as described above is optionally additionally provided with valve cover, institute between the upper end of the plunger and the sucker rod
It states oil outlet to be provided on the side wall of the valve cover, the fuel feed hole is arranged on the lower end surface of the plunger.
Oil well pump as described above, optionally, the lower end of the pump barrel are equipped with extension tube, when the plunger is moved to lower pole
When extreme position, the lower end of the plunger is located in the extension tube.
Oil well pump as described above is optionally additionally provided with pump barrel box cupling, the pump between the pump barrel and the extension tube
The upper end of cylinder box cupling is arranged in the annular gap, and the inside of the lateral surface of the upper end of the pump barrel box cupling and the outer tube
Face is fixedly connected, and medial surface and the pump barrel of the upper end of the pump barrel box cupling abut against；The lower end of the pump barrel box cupling and institute
Extension tube is stated to be fixedly connected.
Oil well pump as described above is optionally equipped with travelling valve, the travelling valve and the plunger in the plunger
It is fixedly linked, standing valve is equipped in the extension tube, the standing valve is fixedly linked with the extension tube.
Oil well pump as described above, optionally, the travelling valve include two, are separately positioned on the top of the plunger
The lower part and；The standing valve also includes two, and two standing valves are arranged at the lower part of the extension tube.
The utility model also provides a kind of oil pumping system, which is characterized in that including described in any item oil well pumps as above, institute
The upper end for stating oil well pump is connect with oil pipe, and the lower end of the oil well pump is connect with tail pipe.
Oil well pump and oil pumping system provided by the utility model, oil well pump include plunger and the pump that is set on the outside of plunger
Cylinder, the lower part of plunger are equipped with fuel feed hole, and the top of plunger is equipped with oil outlet, and the upper end of plunger is connected with sucker rod, and plunger can be
It is moved up and down under the drive of sucker rod along pump barrel, and when plunger is moved to lower limit position, oil outlet is located at the top of pump barrel.This
Oil outlet when utility model is by making plunger be moved to lower limit position on plunger is still located at the top of pump barrel, to guarantee
Silt contained in the oil liquid of oil outlet outflow is not easy to fall between plunger and pump barrel, it is therefore prevented that the hair of oil well pump holddown phenomenon
It is raw, improve production efficiency.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structure diagram for the oil well pump that an embodiment of the present invention provides；
Fig. 2 is the structure diagram for the oil well pump that another embodiment of the utility model provides；
Fig. 3 is the structure diagram for the oil well pump that the utility model another embodiment provides；
Fig. 4 is the structure diagram for the oil well pump that another embodiment of the utility model provides；
Fig. 5 is the structure diagram for the oil well pump that another embodiment of the utility model provides.
Appended drawing reference:
10- plunger；11- fuel feed hole；
12- oil outlet；13- travelling valve；
20- pump barrel；30- sucker rod；
40- valve cover；50- outer tube；
60- centralizer；61- through-hole；
70- extension tube；71- oil liquid import；
72- standing valve；80- pump barrel box cupling.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.In the absence of conflict, following implementation
Feature in example and embodiment can be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on the figure
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
It is connected directly, the mutual of connection inside two elements or two elements can also be can be indirectly connected through an intermediary
Interactively.For the ordinary skill in the art, it can understand that above-mentioned term is practical new at this as the case may be
Concrete meaning in type.
It should be noted that term " first ", " second " are only used for facilitating description different in the description of the present invention,
Component, be not understood to indicate or imply ordinal relation, relative importance or implicitly indicate indicated technical characteristic
Quantity." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one of the features.
China can exploit petroleum resources and largely be imbedded in earth's surface 5000m hereinafter, belonging to deep-well, ultra-deep well operations scope,
The exploration and development of Deep Oil And Gas Exploration resource is the main path realizing oilfield Resources Strategy and taking over, greatly develops deep-well, ultra-deep
Well drilling technology is both the needs of exploration and development and the needs of active adaption drilling engineering technological service market competition.Oil pumping
Pump is also referred to as deep well pump, is deep-well, the capital equipment in ultradeep well oil pumping system, oil well pump can pass through pumping unit, sucker rod passes
The power passed carries out the pumping of liquid in oil well.
In the prior art, oil well pump generally comprises sucker rod, pump barrel, standing valve and plunger, and trip is wherein equipped in plunger
The outside of dynamic valve, plunger is equipped with pump barrel, and pump barrel length is generally far larger than the length of plunger.In oil pumping operation, plunger exists
It moves up and down under the drive of sucker rod along pump barrel.Travelling valve of the plunger when moving upwards in it is closed, oil-well pump bottom
Standing valve is opened, so that oil liquid enters in oil well pump；When travelling valve opening of the plunger when moving downward in it, oil well pump
The standing valve of bottom is closed, and oil liquid is discharged through the oil outlet of plunger upper part, to realize the exploitation of oil liquid.
But generally locating geological environment is severe in China oil field, deep-well, the salinity of ultradeep well oilfield and corrosion energy
Power is strong, be often accompanied by exploitation shake out and the case where fouling, especially shake out in the Carbonate Reservoir stratum of barefoot completion, oil
Mud and scale formation are more obvious, at this point, according to scheme in the prior art, since to be far longer than plunger long for its pump barrel length
Degree, for plunger in operation always situated in pump barrel, silt contained in the oil liquid of plunger extraction can be deposited on pump by gravity
Between cylinder and plunger, prolonged sedimentation easily causes the generation of holddown phenomenon, seriously affects mining progress.
In order to overcome the drawbacks described above under the prior art, the purpose of this utility model is to provide a kind of oil well pump and oil pumping
System, for its plunger of the oil well pump of the utility model when moving up and down along pump barrel, the oil outlet on plunger is always positioned at pump barrel
Top, so that silt contained in oil liquid is not easy to fall between plunger and pump barrel, it is therefore prevented that the hair of oil well pump holddown phenomenon
It is raw, improve production efficiency.
It is described below in conjunction with the detailed content to the utility model of attached drawing, so that those skilled in the art can
The more detailed content for understanding the utility model.
Embodiment one
Fig. 1 is the structure diagram for the oil well pump that an embodiment of the present invention provides；Please refer to Fig. 1.The present embodiment provides
A kind of oil well pump, including plunger 10 and the pump barrel 20 being set on the outside of plunger 10, the lower part of plunger 10 is equipped with fuel feed hole 11, plunger
10 top is equipped with oil outlet 12, and the upper end of plunger 10 is connected with sucker rod 30, and plunger 10 can be in the drive lower edge of sucker rod 30
Pump barrel 20 moves up and down, and when plunger 10 is moved to lower limit position, oil outlet 12 is located at the top of pump barrel 20.
Specifically, the plunger 10 and pump barrel 20 in the present embodiment are whole cylindrical, the inside of plunger 10 is hollow form, shape
At the channel that fuel feeding liquid stream is moved, the lower end of plunger 10 is equipped with fuel feed hole 11, and upper end is equipped with oil outlet 12, fuel feed hole 11 and oil outlet
12 form a complete oil circuit with the channel connection inside plunger 10.Pump barrel 20 is whole also cylindrical, and pump barrel 20 is hollow
Cylinder, plunger 10 are arranged in the cavity in pump barrel 20.
Plunger 10 can be moved up and down in oil well to complete Pumping action, and pump barrel 20 is fixedly installed relative to oil well, specifically
, the upper end of plunger 10 is fixedly connected with sucker rod 30, and sucker rod 30 is connect with mechanical equipments such as external pumping units, and machinery is set
It is standby to provide power for oil well pump, the power can be transferred on plunger 10 in the drive lower sucker rod 30 of mechanical equipment, to make
Plunger 10 can be moved up and down periodically along pump barrel 20, complete sucking and the discharging operation of oil liquid.
Further, valve cover 40 is additionally provided between the upper end of plunger 10 and sucker rod 30, oil outlet 12 is provided with valve
On the side wall of cover 40, fuel feed hole is arranged on the lower end surface of plunger 10.Valve cover 40 can also play the role of connection, be equivalent to
One connector is connected and fixed for will realize between plunger 10 and sucker rod 30, and specific fixed form can be according to reality
It is selected, the present embodiment does not further limit this.
Travelling valve 13 is equipped in plunger 10, travelling valve 13 is fixedly linked with plunger 10, and the quantity of travelling valve 13 is
Two, it is separately positioned on the upper and lower part of plunger 10, is arranged close to fuel feed hole 11 and oil outlet 12.In plunger 10 along pump barrel 20
When moving downward, travelling valve 13 will be opened by the effect of fluid pressure, so that oil liquid enters in plunger 10；In plunger 10 along pump
When cylinder 20 moves upwards, travelling valve 13 will be closed by the effect of fluid pressure, so that oil liquid is discharged from plunger 10.
The length of plunger 10 can be far longer than the length of pump barrel 20 in the present embodiment, with guarantee plunger 10 along pump barrel 20 to
Under when moving to extreme position, the oil outlet 12 on plunger 10 is still located at the top of pump barrel 20, to guarantee that oil outlet 12 flows
Oil liquid out is respectively positioned on outside pump barrel 20, even if silt contained in oil liquid sinks under gravity, most of mud
Sand can also sink to the outside of pump barrel 20, will not enter between plunger 10 and pump barrel 20, oil well pump is just not susceptible to card at work
Pump phenomenon reduces the maintenance frequency, improves production efficiency to extend using the time.
In an optional embodiment, the length of plunger 10 can be set as 10-12m, the length of pump barrel 20 is set
It is set to 1.2-1.5m, pump barrel 20 is set in the medium position of plunger 10, under the premise of meeting deep-well stroke 8m demand, ensure that
Oil outlet 12 on plunger 10 is located at the top of pump barrel 20 forever, avoids silt and falls between plunger 10 and pump barrel 20.
In the present embodiment, the nickel-base alloy of 10 surface spraying weld high rigidity of plunger, the anti-sand launder on inner and outer wall carries out nickel
Phosphorus plating increases wear-resisting, corrosion resistance.Travelling valve 13 is made of cemented carbide material, good combination property, hardness
Height, shock resistance are good.Pump barrel 20 is made of stainless steel material, and 20 inner wall of pump barrel uses chrome hardening process, increases pump
The resistance to corrosion of cylinder 20.Valve cover 40 selects high chromium rust free steel material to be made, prevent sand grains constantly wear valve bonnet inner wall and
Cause inner wall thinning, prevents well liquid corrosion fracture.
Oil well pump provided in this embodiment including plunger 10 and is set in the pump barrel 20 in the outside of plunger 10, under plunger 10
Portion is equipped with fuel feed hole 11, and the top of plunger 10 is equipped with oil outlet 12, and the upper end of plunger 10 is connected with sucker rod 30, and plunger 10 can be
It is moved up and down under the drive of sucker rod 30 along pump barrel 20, and when plunger 10 is moved to lower limit position, oil outlet 12 is located at pump barrel
20 top.Oil outlet 12 when the present embodiment is by making plunger 10 be moved to lower limit position on plunger 10 is still located at pump barrel
20 top, thus ensure that silt contained in the oil liquid of the outflow of oil outlet 12 is not easy to fall between plunger 10 and pump barrel 20,
The generation for preventing oil well pump holddown phenomenon, improves production efficiency.
Embodiment two
Fig. 2 is the structure diagram for the oil well pump that another embodiment of the utility model provides；Referring to figure 2..The present embodiment is
The further improvement that oil pumping pump configuration is carried out on the basis of the above embodiment 1, so that its need for being more in line with actual production
It wants, the present embodiment provides a kind of oil well pumps, and including plunger 10 and the pump barrel 20 being set on the outside of plunger 10, the lower part of plunger 10 is set
There is fuel feed hole 11, the top of plunger 10 is equipped with oil outlet 12, and the upper end of plunger 10 is connected with sucker rod 30, and plunger 10 can pump
It is moved up and down under the drive of bar 30 along pump barrel 20, and when plunger 10 is moved to lower limit position, oil outlet 12 is located at pump barrel 20
Top, the outside of pump barrel 20 are also arranged with outer tube 50, are formed with annular gap between pump barrel 20 and outer tube 50.
Specifically, the present embodiment due to the outside of pump barrel 20 be provided with outer tube 50, and the internal diameter of outer tube 50 slightly larger than pump
The outer diameter (specific value of the two can be configured according to actual needs) of cylinder 20, so that between outer tube 50 and pump barrel 20 just
An annular gap is constituted, which can be used for collecting silt contained in the oil liquid flowed out from oil outlet 12, prevent silt
The silt content in oil liquid is caused to improve the pollution of bottom oil liquid after sinking.Due to being provided with the annular gap, only need
Oil well pump is cleared up in timing, to ensure that fuel-displaced quality.
The outer tube 50 of the present embodiment is also used to connect external oil pipe, can specifically be made by the way of being threadedly coupled
The upper end of outer tube 50 is connected with the lower end of oil pipe.
Other structures in the present embodiment are identical as the structure in above-described embodiment, and details are not described herein.
Oil well pump provided in this embodiment including plunger 10 and is set in the pump barrel 20 in the outside of plunger 10, under plunger 10
Portion is equipped with fuel feed hole 11, and the top of plunger 10 is equipped with oil outlet 12, and the upper end of plunger 10 is connected with sucker rod 30, and plunger 10 can be
It is moved up and down under the drive of sucker rod 30 along pump barrel 20, and when plunger 10 is moved to lower limit position, oil outlet 12 is located at pump barrel
20 top.Oil outlet 12 when the present embodiment is by making plunger 10 be moved to lower limit position on plunger 10 is still located at pump barrel
20 top, thus ensure that silt contained in the oil liquid of the outflow of oil outlet 12 is not easy to fall between plunger 10 and pump barrel 20,
The generation for preventing oil well pump holddown phenomenon, improves production efficiency.The present embodiment is additionally provided with outer tube 50, pump barrel 20 and outer tube 50
Between be equipped with annular gap, the silt that sinks in the oil liquid so as to collect the outflow of oil outlet 12 guarantees fuel-displaced quality.
Embodiment three
Fig. 3 is the structure diagram for the oil well pump that the utility model another embodiment provides；Referring to figure 3..The present embodiment is
The further improvement that oil pumping pump configuration is carried out on the basis of above-described embodiment two, so that its need for being more in line with actual production
It wants, the present embodiment provides a kind of oil well pumps, and including plunger 10 and the pump barrel 20 being set on the outside of plunger 10, the lower part of plunger 10 is set
There is fuel feed hole 11, the top of plunger 10 is equipped with oil outlet 12, and the upper end of plunger 10 is connected with sucker rod 30, and plunger 10 can pump
It is moved up and down under the drive of bar 30 along pump barrel 20, and when plunger 10 is moved to lower limit position, oil outlet 12 is located at pump barrel 20
Top, the outside of pump barrel 20 are also arranged with outer tube 50, form annular gap between pump barrel 20 and outer tube 50, are equipped in annular gap
Centralizer 60, the two sides of centralizer 60 are connected to respectively on the lateral surface of pump barrel 20 and the medial surface of outer tube 50, centralizer 60
It is equipped with through-hole 61, through-hole 61 is used to be connected to the annular gap of the annular gap and lower section that are located at 60 top of centralizer.
Further, the upper surface of the centralizer 60 tilts down, and inclined direction is towards 50 side of outer tube.
Specifically, centralizer 60 is supported on the lateral surface of pump barrel 20 in the present embodiment, quantity can be it is multiple, it is multiple
Centralizer 60 is uniformly distributed along the outer peripheral surface of pump barrel 20, to provide pump barrel 20 circumferential support force, prevents it from glancing off.Or
Person also can according to need and multiple rows of centralizer 60 be arranged along 20 length direction of pump barrel, and specific set-up mode can basis
It is actual to be selected.
The through-hole 61 for being connected thereto surface and lower surface is equipped in centralizer 60, which smoothly sinks to for silt
In annular gap between pump barrel 20 and outer tube 50；Further, the upper surface of centralizer 60 can be arranged towards outer tube 50
One inclined-plane being sloped downwardly enables silt preferably to fall into the annular gap to guide the sinking path of silt.
Other structures in the present embodiment are identical as the structure in above-described embodiment, and details are not described herein.
Oil well pump provided in this embodiment including plunger 10 and is set in the pump barrel 20 in the outside of plunger 10, under plunger 10
Portion is equipped with fuel feed hole 11, and the top of plunger 10 is equipped with oil outlet 12, and the upper end of plunger 10 is connected with sucker rod 30, and plunger 10 can be
It is moved up and down under the drive of sucker rod 30 along pump barrel 20, and when plunger 10 is moved to lower limit position, oil outlet 12 is located at pump barrel
20 top.Oil outlet 12 when the present embodiment is by making plunger 10 be moved to lower limit position on plunger 10 is still located at pump barrel
20 top, thus ensure that silt contained in the oil liquid of the outflow of oil outlet 12 is not easy to fall between plunger 10 and pump barrel 20,
The generation for preventing oil well pump holddown phenomenon, improves production efficiency.The present embodiment is additionally provided with outer tube 50, pump barrel 20 and outer tube 50
Between be equipped with annular gap, the silt that sinks in the oil liquid so as to collect the outflow of oil outlet 12 guarantees fuel-displaced quality.This
Embodiment is additionally provided with centralizer 60 in annular gap, to provide pump barrel 20 circumferential support force, prevents it from glancing off.
Example IV
Fig. 4 is the structure diagram for the oil well pump that another embodiment of the utility model provides；Referring to figure 4..The present embodiment is
The further improvement that oil pumping pump configuration is carried out on the basis of above-described embodiment three, so that its need for being more in line with actual production
It wants, the present embodiment provides a kind of oil well pumps, and including plunger 10 and the pump barrel 20 being set on the outside of plunger 10, the lower part of plunger 10 is set
There is fuel feed hole 11, the top of plunger 10 is equipped with oil outlet 12, and the upper end of plunger 10 is connected with sucker rod 30, and plunger 10 can pump
It is moved up and down under the drive of bar 30 along pump barrel 20, and when plunger 10 is moved to lower limit position, oil outlet 12 is located at pump barrel 20
Top, the outside of pump barrel 20 are also arranged with outer tube 50, and annular gap is formed between pump barrel 20 and outer tube 50, is set in annular gap
There is centralizer 60, the two sides of centralizer 60 are connected to respectively on the lateral surface of pump barrel 20 and the medial surface of outer tube 50, centralizer
60 are equipped with through-hole 61, and through-hole 61 is used to be connected to the annular gap of the annular gap and lower section that are located at 60 top of centralizer.Pump barrel
20 lower end is equipped with extension tube 70, and the lower end surface of extension tube 70 is equipped with oil liquid import 71, when plunger 10 is moved to limit inferior position
When setting, the lower end of plunger 10 is located in extension tube 70.
Further, standing valve 72 is equipped in extension tube 70, standing valve 72 is fixedly linked with extension tube 70.Fixation is all
The quantity of that 72 is two, and two standing valves 72 are arranged at the lower part of extension tube 70.
Specifically, improving the service life of plunger 10, the present embodiment is in pump barrel 20 to be protected accordingly to plunger 10
Lower end be arranged extension tube 70, the length of extension tube 70 answers long enough, when so that plunger 10 being moved to lower limit position, plunger 10
Lower end be still located in extension tube 70, with to plunger 10 formed protect.
Standing valve 72 is equipped in extension tube 70, travelling valve 13 cooperates in standing valve 72 and plunger 10, co- controlling
Flowing of the oil liquid in oil well pump.Specifically, when plunger 10 is moved upwards along pump barrel 20, standing valve 72 opened, it is all to move about
That 13 is closed, and external oil liquid enters in extension tube 70 through oil liquid import 71 and standing valve 72；Plunger 10 along pump barrel 20 to
When lower movement, standing valve 72 is closed, travelling valve 13 is opened, and the oil liquid in extension tube 70 enters in plunger 10.
To prevent contained quantity of sand and mud in external oil liquid from increasing and polluting the internal structure of oil well pump suddenly, set in the present embodiment
Two standing valves 72 up and down are set.
The extension tube 70 of the present embodiment is also used to connect external tail pipe, can specifically be made by the way of being threadedly coupled
The lower end for obtaining extension tube 70 is connected with the upper end of tail pipe.The lower end of tail pipe can also connect sand-proof pipe, with reduce greasy filth sand scale into
Enter in oil well pump.
Other structures in the present embodiment are identical as the structure in above-described embodiment, and details are not described herein.
Oil well pump provided in this embodiment including plunger 10 and is set in the pump barrel 20 in the outside of plunger 10, under plunger 10
Portion is equipped with fuel feed hole 11, and the top of plunger 10 is equipped with oil outlet 12, and the upper end of plunger 10 is connected with sucker rod 30, and plunger 10 can be
It is moved up and down under the drive of sucker rod 30 along pump barrel 20, and when plunger 10 is moved to lower limit position, oil outlet 12 is located at pump barrel
20 top.Oil outlet 12 when the present embodiment is by making plunger 10 be moved to lower limit position on plunger 10 is still located at pump barrel
20 top, thus ensure that silt contained in the oil liquid of the outflow of oil outlet 12 is not easy to fall between plunger 10 and pump barrel 20,
The generation for preventing oil well pump holddown phenomenon, improves production efficiency.The present embodiment is additionally provided with outer tube 50, pump barrel 20 and outer tube 50
Between be equipped with annular gap, the silt that sinks in the oil liquid so as to collect the outflow of oil outlet 12 guarantees fuel-displaced quality；?
It is additionally provided with centralizer 60 in annular gap, to provide pump barrel 20 circumferential support force, prevents it from glancing off.Under pump barrel 20
End is connected with extension tube 70, to be protected accordingly to plunger 10, prolongs its service life.
Embodiment five
Fig. 5 is the structure diagram for the oil well pump that another embodiment of the utility model provides；Referring to figure 5..The present embodiment is
The further improvement that oil pumping pump configuration is carried out on the basis of above-described embodiment four, so that its need for being more in line with actual production
It wants, the present embodiment provides a kind of oil well pumps, and including plunger 10 and the pump barrel 20 being set on the outside of plunger 10, the lower part of plunger 10 is set
There is fuel feed hole 11, the top of plunger 10 is equipped with oil outlet 12, and the upper end of plunger 10 is connected with sucker rod 30, and plunger 10 can pump
It is moved up and down under the drive of bar 30 along pump barrel 20, and when plunger 10 is moved to lower limit position, oil outlet 12 is located at pump barrel 20
Top, the outside of pump barrel 20 are also arranged with outer tube 50, and annular gap is formed between pump barrel 20 and outer tube 50, is set in annular gap
There is centralizer 60, the two sides of centralizer 60 are connected to respectively on the lateral surface of pump barrel 20 and the medial surface of outer tube 50, centralizer
60 are equipped with through-hole 61, and through-hole 61 is used to be connected to the annular gap of the annular gap and lower section that are located at 60 top of centralizer.Pump barrel
20 lower end is equipped with extension tube 70, and the lower end surface of extension tube 70 is equipped with oil liquid import 71, when plunger 10 is moved to limit inferior position
When setting, the lower end of plunger 10 is located in extension tube 70.Pump barrel box cupling 80, pump barrel box cupling are additionally provided between pump barrel 20 and extension tube 70
80 upper end is arranged in annular gap, and the lateral surface of the upper end of pump barrel box cupling 80 is fixedly connected with the medial surface of outer tube 50,
The medial surface of the upper end of pump barrel box cupling 80 is abutted against with pump barrel 20；The lower end of pump barrel box cupling 80 is fixedly connected with extension tube 70.
Specifically, in the present embodiment between pump barrel box cupling 80 and pump barrel 20 and extension tube 70 to be fixedly connected with mode optional
It is threadedly coupled.Pump barrel box cupling 80 is arranged in the lower end of annular gap, ring is served as in the upper surface that can use pump barrel box cupling 80
The bottom surface in shape gap, it is also possible to prevent falling off for pump barrel box cupling 80.Pump barrel box cupling 80 is whole in hollow cylindric,
Surfaces externally and internally is equipped with helicitic texture, and the lower part of pump barrel box cupling 80 is arranged in the screw thread of inner surface, for fixed with extension tube 70
Connection；The top of pump barrel box cupling 80 is arranged in the screw thread of outer surface, for being fixedly connected with the medial surface of outer tube 50.In this way, prolonging
All load is on outer tube 50 for the gravity of long tube 70, so as to effectively prevent pump barrel 20 prolonged in 70 gravity of extension tube
The deformation that effect is lower and occurs, further decreases the risk of holddown.
Other structures in the present embodiment are identical as the structure in above-described embodiment, and details are not described herein.
Oil well pump provided in this embodiment including plunger 10 and is set in the pump barrel 20 in the outside of plunger 10, under plunger 10
Portion is equipped with fuel feed hole 11, and the top of plunger 10 is equipped with oil outlet 12, and the upper end of plunger 10 is connected with sucker rod 30, and plunger 10 can be
It is moved up and down under the drive of sucker rod 30 along pump barrel 20, and when plunger 10 is moved to lower limit position, oil outlet 12 is located at pump barrel
20 top.Oil outlet 12 when the present embodiment makes plunger 10 be moved to lower limit position on plunger 10 is still positioned at pump barrel 20
Top prevents to ensure that silt contained in the oil liquid of the outflow of oil outlet 12 is not easy to fall between plunger 10 and pump barrel 20
The generation of oil well pump holddown phenomenon, improves production efficiency.The present embodiment is additionally provided with outer tube 50, between pump barrel 20 and outer tube 50
Equipped with annular gap, the silt to sink in the oil liquid so as to collect the outflow of oil outlet 12 guarantees fuel-displaced quality；In annular
It is additionally provided with centralizer 60 in gap, to provide pump barrel 20 circumferential support force, prevents it from glancing off.The lower end of pump barrel 20 connects
It is connected to extension tube 70, to be protected accordingly to plunger 10, is prolonged its service life.Pump barrel 20 passes through pump barrel box cupling 80 and prolongs
Long tube 70 is connected, and the upper end of pump barrel box cupling 80 is arranged in annular gap, and the lateral surface and outer tube of the upper end of pump barrel box cupling 80
50 medial surface is fixedly connected, and medial surface and the pump barrel 20 of the upper end of pump barrel box cupling 80 abut against；The lower end of pump barrel box cupling 80 with
Extension tube 70 is fixedly connected, so that all load is on outer tube 50 for the gravity of extension tube 70, so as to effectively prevent pump barrel
20 deformations occurred under the action of 70 gravity long-time of extension tube, further decrease the risk of holddown.
Embodiment six
The present embodiment also provides a kind of oil pumping system, including oil well pump described in any embodiment as above, the oil well pump
Upper end is connect with oil pipe, and lower end is connect with tail pipe, to realize the circulation of oil liquid.
Oil pumping system provided in this embodiment, oil well pump include plunger and the pump barrel that is set on the outside of plunger, plunger
Lower part is equipped with fuel feed hole, and the top of plunger is equipped with oil outlet, and the upper end of plunger is connected with sucker rod, and plunger can be in the band of sucker rod
It is moved up and down under dynamic along pump barrel, and when plunger is moved to lower limit position, oil outlet is located at the top of pump barrel.The present embodiment passes through
Oil outlet when plunger being made to be moved to lower limit position on plunger is still located at the top of pump barrel, to ensure that oil outlet flows out
Oil liquid contained in silt be not easy to fall between plunger and pump barrel, it is therefore prevented that the generation of oil well pump holddown phenomenon improves life
Produce efficiency.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of oil well pump, which is characterized in that including plunger and the pump barrel being set on the outside of the plunger, the lower part of the plunger
Equipped with fuel feed hole, the top of the plunger is equipped with oil outlet, and the upper end of the plunger is connected with sucker rod, and the plunger can be in institute
It states pump barrel described in the drive lower edge of sucker rod to move up and down, and when the plunger is moved to lower limit position, the fuel-displaced hole location
In the top of the pump barrel.
2. oil well pump according to claim 1, which is characterized in that the outside of the pump barrel is also arranged with outer tube, the pump
Annular gap is formed between cylinder and the outer tube.
3. oil well pump according to claim 2, which is characterized in that be equipped with centralizer, the righting in the annular gap
The two sides of device are connected to respectively on the lateral surface of the pump barrel and the medial surface of the outer tube, and the centralizer is equipped with logical
Hole, the through-hole are used to be connected to the annular gap of the annular gap and lower section that are located above the centralizer.
4. oil well pump according to claim 3, which is characterized in that the upper surface of the centralizer tilts down, inclination side
To towards the outer tube side.
5. oil well pump according to claim 4, which is characterized in that also set between the upper end of the plunger and the sucker rod
There is valve cover, the oil outlet is provided on the side wall of the valve cover, and the lower end surface of the plunger is arranged in the fuel feed hole
On.
6. the oil well pump according to any one of claim 2-5, which is characterized in that the lower end of the pump barrel, which is equipped with, to be extended
Pipe, when the plunger is moved to lower limit position, the lower end of the plunger is located in the extension tube.
7. oil well pump according to claim 6, which is characterized in that be additionally provided with pump barrel between the pump barrel and the extension tube
The upper end of box cupling, the pump barrel box cupling is arranged in the annular gap, and the lateral surface of the upper end of the pump barrel box cupling and institute
The medial surface for stating outer tube is fixedly connected, and medial surface and the pump barrel of the upper end of the pump barrel box cupling abut against；The pump barrel connects
The lower end of hoop is fixedly connected with the extension tube.
8. oil well pump according to claim 6, which is characterized in that be equipped with travelling valve in the plunger, the travelling is all
You are fixedly linked with the plunger, and standing valve, the standing valve and the extension tube stationary phase are equipped in the extension tube
Even.
9. oil well pump according to claim 8, which is characterized in that the travelling valve includes two, is separately positioned on institute
State the upper and lower part of plunger；The standing valve also includes two, and two standing valves are arranged at the extension tube
Lower part.
10. a kind of oil pumping system, which is characterized in that including oil well pump as claimed in any one of claims 1-9 wherein, the oil pumping
The upper end of pump is connect with oil pipe, and the lower end of the oil well pump is connect with tail pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639714.0U CN208330692U (en) | 2018-05-02 | 2018-05-02 | Oil-well pump and oil pumping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639714.0U CN208330692U (en) | 2018-05-02 | 2018-05-02 | Oil-well pump and oil pumping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330692U true CN208330692U (en) | 2019-01-04 |
Family
ID=64779526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820639714.0U Active CN208330692U (en) | 2018-05-02 | 2018-05-02 | Oil-well pump and oil pumping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330692U (en) |
-
2018
- 2018-05-02 CN CN201820639714.0U patent/CN208330692U/en active Active
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