CN109209846A - A kind of super―heavy oil sand-preventing pump - Google Patents
A kind of super―heavy oil sand-preventing pump Download PDFInfo
- Publication number
- CN109209846A CN109209846A CN201811044410.0A CN201811044410A CN109209846A CN 109209846 A CN109209846 A CN 109209846A CN 201811044410 A CN201811044410 A CN 201811044410A CN 109209846 A CN109209846 A CN 109209846A
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- Prior art keywords
- pump barrel
- sand
- pump
- super
- oil
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/12—Valves; Arrangement of valves arranged in or on pistons
- F04B53/125—Reciprocating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Abstract
The present invention relates to a kind of super―heavy oil sand-preventing pumps.Super―heavy oil sand-preventing pump includes the outer tube assembly vertically extended and its interior pump barrel component being disposed with, pump barrel component is equipped with the extraneous oil inlet passage being connected to its inner cavity, the plunger assembly for being equipped with reciprocating action along the vertical direction in pump barrel component to pump by pump barrel component inner cavity, the oil inlet valve arrangement for controlling pump barrel component inner cavity on-off is equipped between pump barrel component and plunger assembly, oil inlet valve arrangement includes the seal valve seat being arranged on pump barrel component, and the sealed valve core that opposite can be slidably arranged on plunger assembly along the vertical direction being used cooperatively with seal valve seat.The structure that the lower travelling valve that the present invention changes oil well pump in the prior art needs to open by the variation of pressure in pump barrel or upper plug designs, so that the uplink of crude oil does not need to overcome the gravity of travelling valve ball in lower travelling valve, it is more suitable for the exploitation of viscous crude.
Description
Technical field
The present invention relates to a kind of super―heavy oil sand-preventing pumps.
Background technique
Currently, the exploitation of domestic viscous crude or high-viscosity oil relies primarily on suction pump and is exploited, and in the recovery process of viscous crude
In, it is desirable that suction pump can not only carry out the extraction of viscous crude, it is also necessary to inject steam to stratum for the later period and provide convenience.In addition,
Since viscous crude phenomenon containing sand is generally existing, when carrying out the exploitation of sand-containing heavy oil using general suction pump, sand is easy to be stuck in column
Between plug and pump barrel, less serious case causes pulling for pump barrel and plunger, and severe one directly occurs sand card phenomenon and suction pump is made to stop working.
Moreover, because viscosity of thickened oil is higher, the viscosity resistance that viscous crude applies plunger when plunger carries out down stroke is larger, hampers plunger
Carry out the efficiency of down stroke.How to solve the problems, such as that above three problem is put in face of researcher.
Authorization Notice No. is that the Chinese utility model of CN2547906Y discloses a kind of movable barrel type super―heavy oil sand control oil pumping
Pump, above-mentioned oil well pump include assembly for plunger, the standing valve for being mounted on assembly for plunger upper end, pump barrel, are mounted on pump barrel upper end
Travelling valve, upper sand sediment pipe, lower sand sediment pipe, strut and plunger bridge-type are fixed in bracket, upper sand sediment pipe and lower sand sediment pipe and its
Form sand setting channel between the fixed bracket of the pump barrel and plunger bridge-type in portion, the setting in sand setting channel is so that gravel in oil liquid can be with
It is discharged via sand setting channel, avoids holddown and sand plug phenomenon.In oil pumping process, the pump barrel of oil well pump is under the drive of sucker rod
Uplink, the oil inlet space between travelling valve and standing valve increases at this time, and the pressure in oil inlet space reduces in pump barrel, due to trip
Dynamic valve upper end pressure is big, and lower end pressure is small, and travelling valve is in close state；But standing valve upper end pressure is small, lower end
Pressure is big, and standing valve is in the open state, and crude oil enters the oil inlet space in pump barrel via standing valve at this time.When pump barrel exists
Under the drive of sucker rod when downlink, the oil inlet reduced space in pump barrel at this time, the pressure in oil inlet space increases in pump barrel, swims at this time
Dynamic valve is opened, and standing valve is closed, thus by the crude oil in pump barrel via in travelling valve indentation oil pipe.
In addition, the Chinese utility model that Authorization Notice No. is CN204941874U discloses a kind of offset suction pump, it should
Suction pump includes upper pump barrel, eccentric valve and lower pump barrel, and guiding movement is equipped with hollow upper plug from top to bottom in upper pump barrel, on
The upper end of plunger is connected with upward-traveling valves, and the lower end of upper plug is connected with lower travelling valve, inlet valve and along the vertical direction in turn
Guiding movement is assemblied in the lower plunger in lower pump barrel.When upper and lower plunger uplink, the crude oil on the outside of oil well pump successively passes through eccentric valve
On oil inlet, the fuel feed hole on inlet valve, lower travelling valve enter in the hollow cavity of upper plug, during this at upward-traveling valves
In closed state, lower travelling valve is in the open state；When upper and lower plunger downlink, upward-traveling valves are opened, and lower travelling valve is closed, this
When crude oil in the hollow cavity of upper plug enter in oil pipe through upward-traveling valves, that is, complete an oil pumping and recycle.
It can be seen that downstream during pumping from above-mentioned movable barrel type super―heavy oil sand-proof oil-well pump and offset suction pump
The opening of dynamic valve (standing valve) is required to be realized using the variation of pressure in pump barrel perhaps upper plug when pump barrel or upper prop
When pressure change in plug is smaller, lower travelling valve (standing valve) is easy to there is a phenomenon where cannot sufficiently open, at this time crude oil
Uplink need to overcome the gravity of travelling valve ball in lower travelling valve (standing valve), this can reduce oil well pump or suction pump
Pump efficiency influences the production efficiency in oil field.Especially thickened oil recovery when, since viscous crude itself has very big viscous force, viscous crude
It is more powerful to exploit the draft needed, when lower travelling valve (standing valve) cannot work well, it will influence opening for oil field
Adopt efficiency.
Summary of the invention
The purpose of the present invention is to provide a kind of super―heavy oil sand-preventing pump, oil well pump when for solving extraction in the prior art
The gravity for needing to overcome standing valve increases the technical issues of crude oil uplink is born.
To achieve the above object, super―heavy oil sand-preventing pump of the invention adopts the following technical scheme that:
Super―heavy oil sand-preventing pump includes the outer tube assembly vertically extended and its interior pump barrel component being disposed with, pump barrel component
It is equipped with the extraneous oil inlet passage being connected to its inner cavity, reciprocating action along the vertical direction is equipped in pump barrel component to pass through pump barrel group
The plunger assembly of part inner cavity oil pumping is equipped with the oil inlet for controlling pump barrel component inner cavity on-off between pump barrel component and plunger assembly
Valve arrangement, oil inlet valve arrangement include the seal valve seat being arranged on pump barrel component, and with seal valve seat be used cooperatively along upper
Lower direction opposite can be slidably arranged in the sealed valve core on plunger assembly, and sealed valve core, which has, to be contacted with plunger assembly by reciprocal
The spool frictional contact surface that the plunger assembly of movement is moved back and forth by rubbing action power drive.
Beneficial effects of the present invention: the setting of sealed valve core and seal valve seat changes prior art middle and lower reaches and moves valve
Structure design, when plunger assembly uplink under the drive of sucker rod, sealed valve core is acted in the sliding friction with plunger assembly
Under with plunger assembly uplink, sealed valve core is separated with seal valve seat at this time, thus achieve the purpose that open sealing valve；Work as plunger
Component under the drive of sucker rod when downlink, sealed valve core under the sliding friction effect with plunger assembly with plunger assembly under
Row, sealed valve core is in contact with seal valve seat at this time, to achieve the purpose that close sealing valve.Above-mentioned sealed valve core and sealing valve
The structure design of seat also changes prior art middle and lower reaches and moves valve needs by the variation ability of pressure in pump barrel or upper plug
The case where opening, avoids since the smaller lower travelling valve of pressure change can not be normally-open, influences the feelings of production efficiency of oilfields
Condition, and the uplink of crude oil does not need to overcome the gravity of travelling valve ball in lower travelling valve, super―heavy oil of the invention yet
Sand-preventing pump is more suitable for the case where thickened oil recovery.
For the further improvement of above-mentioned super―heavy oil sand-preventing pump, the upper end of the sealed valve core is fixedly connected with bushing,
The bushing, which has, to be contacted to be moved back and forth by rubbing action power drive by the plunger assembly of reciprocating action with plunger assembly
Bushing frictional contact surface.Due to the sliding friction effect between bushing and plunger assembly, rubbing when increasing sealed valve core uplink
Power is wiped, sealed valve core is moved synchronously with plunger assembly immediately in plunger assembly uplink.
For the further improvement of above-mentioned super―heavy oil sand-preventing pump, sliding sleeve is equipped with supporting positive cover on the bushing.Supporting positive cover
Setting so that plunger assembly during upstream or downstream always be in oil well pump center position, avoid plunger assembly hair
The case where raw off center.
For the further improvement of above-mentioned super―heavy oil sand-preventing pump, the outer tube assembly includes bridge-type connector, the bridge-type
Central through hole, oil inlet side opening and gravel through-hole are disposed on connector, the plunger assembly includes lower plunger, and the lower plunger exists
Bridge-type connector can be passed freely through when upstream or downstream by the central through hole, the oil inlet side opening is connected with central through hole
Logical, the oil inlet side opening constitutes the extraneous oil inlet passage of pump barrel component.The arrangement of central through hole increases the stroke of lower plunger, makes
It must descend plunger that can pass through bridge-type connector and reach below bridge-type connector, oil inlet side opening is connected to central through hole so that crude oil can be with
Enter central through hole on the outside of super―heavy oil sand-preventing pump via oil inlet side opening.
For the further improvement of above-mentioned super―heavy oil sand-preventing pump, the outer tube assembly further includes upper sand sediment pipe and lower sand setting
Pipe, the upper sand sediment pipe and lower sand sediment pipe are attached directly or indirectly through the external tapping of bridge-type connector, the pump barrel group
Part includes upper pump barrel and lower pump barrel, and the upper pump barrel and lower pump barrel are connected directly or indirectly through the inner joint of bridge-type connector
It connects, forms the sand setting channel that can settle gravel, the gravel between the upper sand sediment pipe and upper pump barrel, lower sand sediment pipe and lower pump barrel
Upper sand sediment pipe is connected by through-hole with the sand setting channel in lower sand sediment pipe.The setting in sand setting channel is so that gravel in crude oil can be with
It is voluntarily settled via sand setting channel, achievees the purpose that eliminate gravel in crude oil.
For the further improvement of above-mentioned super―heavy oil sand-preventing pump, the lower end of the lower pump barrel is connected with pump barrel silk plug.Pump
The inner cavity of lower pump barrel and sand setting channel are isolated by the setting of cylinder silk plug, avoid the gravel to sink through sand setting channel via lower pump
The case where cylinder is again introduced into oil inlet passage.
For the further improvement of above-mentioned super―heavy oil sand-preventing pump, the lower end of the lower sand sediment pipe is connected with sand setting silk plug.
The setting of sand setting silk plug, which with underground presses in sand setting channel, to be isolated, and the influence to oil well pump is pressed with reducing underground, and
So that lower sand sediment pipe has collecting action, the gravel being gathered in lower sand sediment pipe is above mentioned in oil well pump to ground for the setting of sand setting silk plug
Behind face, it can be discharged by backing out sand setting silk plug.
For the further improvement of above-mentioned super―heavy oil sand-preventing pump, connect between the upper pump barrel and the inner joint of bridge-type connector
It is connected to inlet valve pipe, the sealed valve core, bushing and supporting positive cover are arranged in the inner chambers of inlet valve pipe.Due to sealing valve
Core, bushing and supporting positive cover are added, and upper pump barrel internal diameter corresponding with above-mentioned component is also required to be adjusted, and inlet valve pipe is set
Set avoid directly be adjusted on upper pump barrel caused by processing difficulties.
For the further improvement of above-mentioned super―heavy oil sand-preventing pump, between the upper sand sediment pipe and the external tapping of bridge-type connector
It is connected with outer connecting pipe.When the cavity inside diameter of upper sand sediment pipe needs to change according to the actual situation, by increasing outer connection
The mode of pipe, which avoids, is directly being adjusted the case where causing the increase of upper sand sediment pipe difficulty of processing on upper sand sediment pipe, and connects outside
The increase of adapter tube avoid sand sediment pipe it is too long and the case where cause bending resistance and torsional strength to reduce.
For the further improvement of above-mentioned super―heavy oil sand-preventing pump, interior company is connected between the upper pump barrel and inlet valve pipe
Adapter tube.The cavity inside diameter that the setting of inner connection tube avoids pump barrel needs upper pump barrel difficulty of processing caused by adjustment increased
Situation.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment 1 of super―heavy oil sand-preventing pump of the invention；
Fig. 2 is the sectional view in Fig. 1 at A-A；
Fig. 3 is the sectional view in Fig. 1 at B-B；
Fig. 4 is the sectional view in Fig. 1 at C-C；
In figure: 1- top connection, 2- travelling valve, the upper sand sediment pipe of 3-, the upper pump barrel of 4-, 5- upper plug, 6- inner connection tube, 7- oil inlet connect
Head, plunger under 8-, 9- outer connecting pipe, 10- supporting positive cover, 11- inlet valve pipe, 12- bushing, 13- seal valve seat, 14- sealed valve core,
15- bridge-type connector, pump barrel under 16-, sand sediment pipe under 17-, 18- pump barrel silk plug, 19- sand setting silk plug, 20- central through hole, 21- gravel
Through-hole, 22- oil inlet side opening.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment 1 of super―heavy oil sand-preventing pump of the invention:
For convenient for the description to super―heavy oil sand-preventing pump in the present embodiment, using top connection side as top in the present embodiment, with heavy
Sand silk plug side is lower section.
As shown in Figs 1-4, super―heavy oil sand-preventing pump include the outer tube assembly being sequentially arranged from outside to inside, pump barrel component and
Plunger assembly.Outer tube assembly includes top connection 1, upper sand sediment pipe 3, outer connecting pipe 9, fixes with 9 lower end of outer connecting pipe from top to bottom
The bridge-type connector 15 of connection and the lower sand sediment pipe 17 for being connected to 15 lower end of bridge-type connector, it is heavy that the lower end of lower sand sediment pipe 17 is connected with
Sand silk plug 19.It should be noted that the external tapping of outer connecting pipe 9 and lower sand sediment pipe 17 with bridge-type connector 15 is attached.Pump barrel
Component includes upper pump barrel 4, inner connection tube 6, inlet valve pipe 11, bridge-type connector 15 and lower pump barrel 16, lower pump barrel 16 from top to bottom
Lower end be fixedly connected with pump barrel silk plug 18.It should be noted that inlet valve pipe 11 and lower pump barrel 16 are interior with bridge-type connector 15
Interface is attached.Plunger assembly be sequentially installed with from top to bottom travelling valve 2, plunger connector, upper plug 5, fuel inlet fitting 7 with
And lower plunger 8.It should be noted that upper plug 5 is hollow tubular, lower plunger 8 is solid rod-like.Travelling valve 2 includes travelling valve
Cover, travelling valve ball and travelling valve seat, travelling valve bonnet are equipped with oil outlet, and travelling valve ball is placed in travelling valve seat, travelling valve
As the up and down motion of lower plunger 8 pumps in travelling valve bonnet, lower plunger 8 is located inside inlet valve pipe 11 ball
Section slidable fit have bushing 12, supporting positive cover 10 is arranged on bushing 12.The lower end of bushing 12 is fixedly installed with sealed valve core
14, the link position of inlet valve pipe 11 and bridge-type connector 15 is embedded in the matching used seal valve seat 13 of sealed valve core 14, it is close
Envelope spool 14 and seal valve seat 13 collectively form oil inlet valve arrangement.It is connect it should be noted that the medial surface of bushing constitutes bushing friction
The medial surface of contacting surface, sealed valve core constitutes spool frictional contact surface.In lower 8 uplink of plunger, sealed valve core 14 is due to by under
The frictional force effect of 8 uplink of plunger is with lower 8 uplink of plunger, so that sealed valve core 14 and seal valve seat 13 separate, at this time
Oil inlet valve arrangement is opened；In lower 8 downlink of plunger, sealed valve core 14 due to by lower 8 downlink of plunger frictional force effect with
Lower 8 downlink of plunger, so that sealed valve core 14 and seal valve seat 13 contact, oil inlet valve arrangement is closed at this time.
The central through hole 20 penetrated for lower plunger 8 is provided on bridge-type connector 15, the two sides of central through hole 20 are additionally provided with
Two arc gravel through-holes 21 are additionally provided with the oil inlet side opening 22 for oil liquid sucking central through hole 20, oil inlet side on bridge-type connector 15
Hole 22 constitutes the outside oil inlet passage of pump barrel component, gravel through-hole 21 and oil inlet side opening 22, gravel through-hole 21 and central through hole 20
Between be isolated from each other, without connection.
It should be noted that annular space, upper sand sediment pipe 3 between upper sand sediment pipe 3 and upper pump barrel 4 and between inner connection tube 6
The gravel through-hole 21 of annular space, bridge-type connector 15 between annular space, outer connecting pipe 9 and inlet valve pipe 11 and lower sand sediment pipe 17 it is interior
Chamber collectively forms sand setting channel.In upper pump barrel 4 move about valve bonnet on oil outlet, plunger connector inner cavity, upper plug 5 it is hollow in
Annular space, lower plunger 8 between chamber, the fuel feed hole of fuel inlet fitting 7, lower plunger 8 and inner connection tube 6 and the ring between inlet valve pipe 11
The oil inlet side opening 22 of the empty, central through hole 20 of bridge-type connector 15 and bridge-type connector 15 collectively forms oil inlet passage.
Above-mentioned super―heavy oil sand-preventing pump can be divided into two stages of upstroke and down stroke when in use.
The upstroke stage, travelling valve 2, plunger connector, upper plug 5, fuel inlet fitting 7, lower plunger 8 with sucker rod it is upward
Movement, at this time since lower plunger 8 moves upwards and there is cunning between bushing 12 and lower plunger 8, sealed valve core 14 and lower plunger
Dynamic friction effect, lower plunger 8 drive the sealed valve core 14 of bushing 12 and 12 lower end of bushing to move upwards, and oil inlet valve arrangement is in
Opening state, so that oil inlet passage is connected to the crude oil on the outside of super―heavy oil sand-preventing pump, due to the connection of oil inlet passage, oil inlet is logical
Drop of pressure in road, travelling valve 2 are in close state under the head of liquid effect in the oil pipe of upper end, at this time super―heavy oil
Oil liquid on the outside of sand-preventing pump enters in oil inlet passage, completes entire oil-absorbing process.
In the down stroke stage, travelling valve 2, plunger connector, upper plug 5, fuel inlet fitting 7 and lower plunger 8 are with sucker rod
It moves downward, sealed valve core 14 and seal valve seat 13 contact at this time, and oil inlet passage is closed, and due to the downlink of lower plunger 8, oil inlet is logical
Sealing space reduces in road, and oil inlet passage chamber pressure increases, and travelling valve 2 is in opening state due to the effect of pressure at this time
State, the oil liquid in the oil inlet passage on the upside of oil inlet valve arrangement are flowed into oil pipe via the oil outlet on travelling valve bonnet, are completed
The process of drain.
It should be noted that, due to the closing of travelling valve 2, above putting what plunger 8 needed to overcome during upstroke
Fluid column load is equal to the fluid column load of the normal conventional tubing pump with pump diameter.During down stroke, since travelling valve 2 is beaten
It opens, oil inlet valve arrangement is closed, and the upper surface of lower plunger 8 will receive downward hydraulic action, be conducive to lower plunger 8 and overcome downlink
Resistance.
In addition, the travelling valve ball in travelling valve 2 can only move up and down in travelling valve bonnet, travelling valve ball can be hydraulic
Quick uplink and downlink are realized under power and the collective effect of gravity, avoid and valve opening and closing occur using other valves
The case where lagging behind sucker rod movement, therefore the super―heavy oil sand-preventing pump in the present embodiment is suitable for the case where inclined shaft is exploited.
Super―heavy oil sand-preventing pump in the present embodiment is also able to achieve to underground steam injection, is needed when oil well output is lower to underground
When steam injection, travelling valve 2, upper plug 5, fuel inlet fitting 7 and lower plunger 8 are above mentioned by sucker rod, until upper plug 5 is complete
Into in the oil pipe on upper 4 top of pump barrel, descends plunger 8 to be located in upper pump barrel 4 and inner connection tube 6 at this time, then filled into oil pipe
Enter steam, the steam being passed through is successively via between annular space, lower plunger 8 and the upper pump barrel 4 between oil pipe, oil pipe and upper plug 5
Annular space, bushing 12 between annular space, lower plunger 8 and inner connection tube 6 and the annular space between inlet valve pipe 11, in bridge-type connector 15
The oil inlet side opening 22 of heart through-hole 20 and bridge-type connector 15 is expelled on the outside of super―heavy oil sand-preventing pump, completes the injection of steam.When
Steam injection finishes when being pumped, and by transferring sucker rod, and then drives travelling valve 2, upper plug 5, fuel inlet fitting
7, then the decentralization of lower plunger 8 can be pumped by above mentioning sucker rod.
In other embodiments, the upper sand sediment pipe of above-mentioned super―heavy oil sand-preventing pump and outer connecting pipe can with integrated setting,
The upper end of upper sand sediment pipe is directly fixedly connected with top connection, and the lower end of upper sand sediment pipe is directly attached with bridge-type connector；Outer company
Adapter tube can be adjusted according to the actual situation for two or more, the quantity of outer connecting pipe；Upper pump barrel and inner connection tube can
To use integrated setting, pump barrel and inner connection tube are set as a root canal road；Pump barrel silk plug and lower pump barrel integrated setting, one
Change the barrel-like structure that the lower pump barrel of setting is sealed for one end；Sand setting silk plug and lower sand sediment pipe integrated setting, when needs take
When descending the gravel in sand sediment pipe out, by the way that lower sand sediment pipe is removed from bridge-type connector.
Claims (10)
1. super―heavy oil sand-preventing pump, including the outer tube assembly vertically extended and its interior pump barrel component being disposed with, pump barrel
Component is equipped with the extraneous oil inlet passage being connected to its inner cavity, and reciprocating action along the vertical direction is equipped in pump barrel component to pass through pump
The plunger assembly of cartridge module inner cavity oil pumping, is equipped between pump barrel component and plunger assembly for controlling pump barrel component inner cavity on-off
Oil inlet valve arrangement, it is characterised in that: oil inlet valve arrangement includes the seal valve seat being arranged on pump barrel component, and and seal valve seat
The sealed valve core that opposite can be slidably arranged on plunger assembly along the vertical direction being used cooperatively, sealed valve core have and plunger group
The spool frictional contact surface that part is contacted to be moved back and forth by the plunger assembly of reciprocating action by rubbing action power drive.
2. super―heavy oil sand-preventing pump according to claim 1, it is characterised in that: the upper end of the sealed valve core is fixedly connected
There is bushing, the bushing, which has, to be contacted with plunger assembly with reciprocal by rubbing action power drive by the plunger assembly of reciprocating action
Mobile bushing frictional contact surface.
3. super―heavy oil sand-preventing pump according to claim 2, it is characterised in that: sliding sleeve is equipped with righting on the bushing
Set.
4. super―heavy oil sand-preventing pump described in any one of -3 according to claim 1, it is characterised in that: the outer tube assembly packet
Bridge-type connector is included, central through hole, oil inlet side opening and gravel through-hole are disposed on the bridge-type connector, the plunger assembly includes
Lower plunger, the lower plunger can pass freely through bridge-type connector, the oil inlet in upstream or downstream by the central through hole
Side opening is connected with central through hole, and the oil inlet side opening constitutes the extraneous oil inlet passage of pump barrel component.
5. super―heavy oil sand-preventing pump according to claim 4, it is characterised in that: the outer tube assembly further includes upper sand sediment pipe
With lower sand sediment pipe, the upper sand sediment pipe and lower sand sediment pipe are attached directly or indirectly through the external tapping of bridge-type connector, institute
Stating pump barrel component includes upper pump barrel and lower pump barrel, and the upper pump barrel and lower pump barrel are directly or indirectly through the inscribed of bridge-type connector
Mouth is attached, and the sand setting channel that can settle gravel is formed between the upper sand sediment pipe and upper pump barrel, lower sand sediment pipe and lower pump barrel,
Upper sand sediment pipe is connected by the gravel through-hole with the sand setting channel in lower sand sediment pipe.
6. super―heavy oil sand-preventing pump according to claim 5, it is characterised in that: the lower end of the lower pump barrel is connected with pump barrel
Silk plug.
7. super―heavy oil sand-preventing pump according to claim 6, it is characterised in that: it is heavy that the lower end of the lower sand sediment pipe is connected with
Sand silk plug.
8. according to super―heavy oil sand-preventing pump described in claim 5 or 6 or 7, it is characterised in that: the upper pump barrel and bridge-type connector
Inner joint between be connected with inlet valve pipe, the inside that the sealed valve core, bushing and supporting positive cover are arranged in inlet valve pipe is empty
It is intracavitary.
9. super―heavy oil sand-preventing pump according to claim 8, it is characterised in that: the upper sand sediment pipe is outer with bridge-type connector
Outer connecting pipe is connected between interface.
10. super―heavy oil sand-preventing pump according to claim 9, it is characterised in that: between the upper pump barrel and inlet valve pipe
It is connected with inner connection tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044410.0A CN109209846B (en) | 2018-09-07 | 2018-09-07 | Super heavy oil sand control pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044410.0A CN109209846B (en) | 2018-09-07 | 2018-09-07 | Super heavy oil sand control pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109209846A true CN109209846A (en) | 2019-01-15 |
| CN109209846B CN109209846B (en) | 2020-10-09 |
Family
ID=64986582
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811044410.0A Active CN109209846B (en) | 2018-09-07 | 2018-09-07 | Super heavy oil sand control pump |
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|---|---|
| CN (1) | CN109209846B (en) |
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|---|---|---|---|---|
| CN2414220Y (en) * | 2000-04-08 | 2001-01-10 | 辽河石油勘探局曙光工程技术处 | Low-pressure high-efficiency oil pump |
| CN2417301Y (en) * | 2000-04-27 | 2001-01-31 | 辽河石油勘探局曙光工程技术处 | Rod type pump |
| RU2459115C2 (en) * | 2010-10-20 | 2012-08-20 | Открытое акционерное общество "Татарский научно-исследовательский и проектно-конструкторский институт нефтяного машиностроения" (ОАО "ТатНИИнефтемаш") | Rod pump unit |
| CN202468245U (en) * | 2012-03-02 | 2012-10-03 | 山东宝世达石油装备制造有限公司 | Sand-proof oil well pump |
| CN202991456U (en) * | 2012-12-10 | 2013-06-12 | 长葛市福侨机电有限公司 | Novel inclined shaft thick oil pump |
| US20160230517A1 (en) * | 2015-02-10 | 2016-08-11 | Warren WESSEL | Downhole pump flushing system and method of use |
| CN205533136U (en) * | 2016-04-21 | 2016-08-31 | 山东寿光市坤隆石油机械股份有限公司 | Keep off sand formula oil -well pump |
| CN205779594U (en) * | 2016-05-20 | 2016-12-07 | 中国石油化工股份有限公司 | Suction pump |
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| CN109209846B (en) | 2020-10-09 |
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