CN209385322U - A kind of viscous crude dispensing point adopts eccentric oil well pump - Google Patents
A kind of viscous crude dispensing point adopts eccentric oil well pump Download PDFInfo
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- CN209385322U CN209385322U CN201821466120.0U CN201821466120U CN209385322U CN 209385322 U CN209385322 U CN 209385322U CN 201821466120 U CN201821466120 U CN 201821466120U CN 209385322 U CN209385322 U CN 209385322U
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Abstract
The utility model relates to a kind of viscous crude dispensings point to adopt eccentric oil well pump.Viscous crude dispensing point adopts eccentric oil well pump, including the pump housing, the pump body is equipped with plunger assembly, it includes gas injection stroke and oil recovery stroke that the viscous crude dispensing point, which adopts eccentric oil well pump, oil recovery stroke includes upstroke and down stroke, in gas injection stroke procedure, gas injection channel is formed between plunger assembly and the pump housing, the pump housing is equipped with upper gas injection port and lower gas injection port；During upstroke, upper oil suction chamber and lower oil suction chamber are formed between plunger assembly and the pump housing；During down stroke, upper oil suction chamber enters oil pipe through upper oil recovery chamber and produces, and lower oil suction chamber enters oil pipe through lower oil recovery chamber and produces.Layered gas-injection, separate zone production can be achieved, avoid interlayer interference, improve oil recovery efficiency.
Description
Technical field
The utility model belongs to technical field of oil production engineering, and in particular to a kind of viscous crude dispensing point adopts eccentric oil well pump.
Background technique
Global viscous crude resource reserve is huge, accounts for about 70% or more of global residual petroleum resource.China's viscous crude is resourceful,
Development degree is low, and viscous crude accounting in the following oil production rate will significantly improve.Steam soak is the routine side for developing heavy crude reservoir
Formula, heavy oil development enters after the high period handles up at present, and steam always enters the top oil reservoir for having formed channel, and bottom oil layer is dynamic
Very low with degree, oil reservoir interlayer is particularly thorny.
Heavy crude reservoir layered gas-injection improves oil reservoir by depositing steam, the steam injection amount of each pay zone unit of optimization design
Steam entry profile improves reservoir crude oil development degree to the maximum extent, it has also become improves the key technology of heavy crude reservoir development degree.
Viscous crude dispensing equipment is to improve the important determinant of Development of Viscous Crude Oil degree.
Has the oil equipment of such viscous crude dispensing in the prior art, such as the reality of Chinese patent notification number CN203626781U
With disclosing a kind of viscous crude separated injection and combined recovery bias feedback pump in new patent specification, including top connection, upper pump barrel, fuel-displaced connect
Head, outer cylinder, upper plug, delivery valve, valve union, eccentric inlet valve, inlet valve, central tube, eccentric joint, lower pump barrel, lower contact,
Lower plunger, top connection upper end are connect with gas injection tube column, and lower end is connect with upper pump barrel, and upper pump barrel outer wall is equipped with upper layer injecting hole,
Inner wall is equipped with lower layer's gas injection slot, and upper pump barrel lower end is connect with outer cylinder, and outer cylinder is connect with eccentric joint, and eccentric joint connection is eccentric
Inlet valve and lower pump barrel, lower pump barrel lower end are connect with lower contact, and lower contact is connect with gas injection tube column.The viscous crude separated injection and combined recovery is eccentric
Feedback pump implements layer steam injection after G.I.H, adjusts rod string position, distinguishes steam injection to upper and lower oil reservoir, in oil pumping pumping
It draws in production process, upper and lower oil reservoir is exploited simultaneously.Realization heavy crude heat extraction steam-stimulated well is above mentioned or transferred using sucker rod
More round layer steam injections and oil pumping.But the viscous crude separated injection and combined recovery bias feedback pump is upper and lower oil commingling, be easy to cause interlayer dry
It disturbs, leads to the fuel-displaced difficulty of low pressure layer, to affect the production efficiency of viscous crude.
Utility model content
The purpose of this utility model is to provide a kind of bias can be adopted with layered gas-injection and the viscous crude of separate zone production dispensing point
Oil well pump.
To achieve the above object, the viscous crude dispensing point of the utility model, which adopts the technical solution of eccentric oil well pump, is:
Technical solution 1, a kind of viscous crude dispensing point adopt eccentric oil well pump, including the pump housing, and the pump body is equipped with plunger group
Part, it includes gas injection stroke and oil recovery stroke that the viscous crude dispensing point, which adopts eccentric oil well pump, and oil recovery stroke includes upstroke and undershoot
Journey in gas injection stroke procedure, forms gas injection channel between plunger assembly and the pump housing, the pump housing is equipped with upper gas injection port and lower gas injection
Mouthful；During upstroke, upper oil suction chamber and lower oil suction chamber are formed between plunger assembly and the pump housing；During down stroke, upper oil inlet
Chamber enters oil pipe extraction through upper oil recovery chamber, and lower oil suction chamber enters oil pipe through lower oil recovery chamber and produces.
The utility model has the advantages that 6 ~ 7m of sucker rod is above mentioned before gas injection in use, connecting sucker rod with plunger assembly,
Steam adopts layer by gas injection channel upwards respectively and adopts a layer gas injection under, realizes layered gas-injection.When oil recovery, upstroke mistake
Cheng Zhong above adopts crude oil in layer and enters upper oil suction chamber, under adopt in layer crude oil enter lower oil suction chamber, it is enterprising during down stroke
The crude oil of oil pocket enters upper oil recovery chamber, and the crude oil in lower oil suction chamber enters lower oil suction chamber, and the crude oil adopted in layer above and below realizes layering
Exploitation, avoids interlayer interference, to improve oil recovery efficiency.
Technical solution 2 is further improved on the basis of technical solution 1, and the pump housing on the upside of the upper gas injection port is equipped with
Eccentric valve for entering for above adopting layer crude oil.Eccentric valve is convenient for the crude oil above adopted in layer to enter the pump housing.
Technical solution 3 is further improved on the basis of technical solution 2, and the pump housing on the upside of eccentric valve is equipped with upward-traveling valves
Valve seat, plunger assembly is equipped with the upward-traveling valves spool cooperated with upward-traveling valves valve base sealing, when upward-traveling valves seal, upper travelling
The annular space between plunger assembly and the pump housing between valve and eccentric valve is upper oil suction chamber.After upward-traveling valves spool and valve seat closure,
Upper oil suction chamber is formed between plunger assembly and the pump housing.
Technical solution 4 is further improved on the basis of technical solution 3, when upward-traveling valves are opened, on upward-traveling valves valve seat
Annular space between the plunger assembly and the pump housing of side is upper oil recovery chamber.Upper oil recovery chamber produces convenient for adopting layer crude oil by.
Technical solution 5 is further improved on the basis of technical solution 4, and the pump housing on the downside of upper gas injection port is equipped with downstream
Dynamic valve base, plunger assembly are equipped with the lower travelling valve spool cooperated with lower travelling valve valve base sealing.Setting upward-traveling valves are convenient for
The crude oil in layer is adopted under control enters pump housing opportunity.
Technical solution 6 is further improved, on the plunger assembly on the upside of lower travelling valve spool on the basis of technical solution 5
Equipped with inlet valve, when lower travelling valve is opened, under the annular space between plunger assembly and the pump housing between lower travelling valve and inlet valve is
Oil suction chamber.Lower oil suction chamber enters lower oil recovery chamber convenient for the crude oil in lower oil suction chamber.
Technical solution 7 is further improved on the basis of technical solution 6, when lower travelling valve closing, inlet valve are opened, into
Plunger assembly on the upside of oil valve is lower oil recovery chamber, and plunger assembly upper end, which is equipped with, enters the fuel-displaced of oil pipe for adopting layer crude oil under supplying
Slot.Oil groove is provided can enter oil pipe extraction convenient for the crude oil in lower oil recovery chamber.
Technical solution 8 is further improved, on the plunger assembly on the basis of 1 ~ 7 any technical solution of technical solution
Equipped with for preventing the inclined centering ring of plunger assembly.Centering ring is beneficial to prevent block component run-off the straight.
Detailed description of the invention
Fig. 1 is that the viscous crude dispensing point of the utility model adopts first part's structural schematic diagram of eccentric oil well pump embodiment；
Fig. 2 is that the viscous crude dispensing point of the utility model adopts the second part structural schematic diagram of eccentric oil well pump embodiment；
The viscous crude dispensing point of Fig. 3 the utility model adopts the gas injection schematic diagram of eccentric oil well pump embodiment；
The viscous crude dispensing point of Fig. 4 the utility model adopts the oil recovery schematic diagram of eccentric oil well pump embodiment；
In attached drawing: 100- viscous crude dispensing point adopts distribution under the upper distributing valve of eccentric oil well pump, 200-, 300- packer, 400-
Valve, 500- ball seat, 1- top connection, the upper pump barrel of 2-, the top connection of 3- plunger, 4- pipe close, 5- plunger trombone slide, the first plunger of 6-, on 7-
Move about valve base, 8- upward-traveling valves spool, 9- plunger center tap, the second plunger of 10-, 11- bias valve bonnet, 12- eccentric valve valve ball,
Pump barrel under valve seat, 13- bias valve base joint, 14-, the first box cupling of 15-, 16- jointing, 17- oil inlet valve bonnet, 18- inlet valve,
The first outer tube of 19-, 20- liquid inlet joint, 21- third plunger, the second box cupling of 22-, 23- standing valve cover, 24- lower travelling valve outer cylinder,
25- clamping nut, 26- lower travelling valve spool, 27- lower travelling valve valve seat, 28- sealing pump barrel, 29- third box cupling, outside 30- second
Pipe, 31- centering ring, 32- lower contact, 33- oil inlet block up, adopt on A- and adopt layer under layer, B-.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
The viscous crude dispensing point of the utility model adopts the specific embodiment of eccentric oil well pump, as shown in Figs 1-4, including top connection
1, upper pump barrel 2, lower pump barrel 14, the first box cupling 15, the first outer tube 19, the second box cupling 22, lower travelling valve outer cylinder 24, third box cupling
29, the pump housing that the second outer tube 30, lower contact 32 form, the pump housing is interior to be arranged plunger assembly, and plunger assembly is followed successively by column from top to bottom
Beyond the Great Wall connector 3, the first plunger 6, the second plunger 10, jointing 16, oil inlet valve bonnet 17, liquid inlet joint 20, third plunger 21, into
Oil stifled 33.
1 upper end of top connection has an internal screw thread for connecting with oil pipe, and 1 lower end of top connection has to be connect with upper pump barrel 2
Internal screw thread.Upper 2 lower end of pump barrel is connect with eccentric 11 threaded upper ends of valve bonnet, and eccentric 11 lower end of valve bonnet and lower 14 threaded upper ends of pump barrel connect
It connects.Lower pump barrel 14 is connect with 15 threaded upper ends of the first box cupling, and 15 lower end of the first box cupling is connect with 19 upper end of the first outer tube, outside first
19 lower end of pipe is connect with 22 threaded upper ends of the second box cupling, and 22 lower end of the second box cupling is connect with 24 upper end of lower travelling valve outer cylinder.Downstream
Dynamic 24 lower end of valve outer cylinder is connect with 29 threaded upper ends of third box cupling, and 29 lower end of third box cupling and 30 threaded upper ends of the second outer tube connect
It connects, 30 lower end of the second outer tube is threadedly coupled with lower contact 32.There is gas injection channel, the side of eccentric valve bonnet 11 has on lower pump barrel 14
There is eccentric valve chamber, eccentric valve valve ball, valve seat 12 are installed in eccentric valve chamber, the lower thread of eccentric valve chamber is equipped with partially
Heart valve base joint 13.Pump body upper end is equipped with the first plunger 6, and 6 upper end of the first plunger is threadedly coupled with plunger top connection 3,
Plunger trombone slide 5 is installed, there is pipe in the upper end of annular space by screwed connection between plunger trombone slide 5 and the first plunger 6 in first plunger 6
Plug 4, has upward-traveling valves valve seat 7, upward-traveling valves valve by screwed connection between the plunger trombone slide 5 and the first plunger of 4 lower end of pipe close
Upward-traveling valves spool 8 is set on first plunger 6 of 7 lower ends of seat, upward-traveling valves spool 8 passes through cone and upward-traveling valves thereon
Valve seat 7 seals.First plunger, 6 lower end is connect with one end of plunger center tap 9, the other end of plunger center tap 9 and the second plunger
The connection of 10 upper ends, 10 lower end of the second plunger are connect with jointing 16, and 16 lower end of jointing is connected with oil inlet valve bonnet 17, oil inlet
Inlet valve 18 is installed inside valve bonnet, 17 lower thread of oil inlet valve bonnet is connected with liquid inlet joint 20, have in liquid inlet joint 20 into
Fluid apertures, inlet opening is the kidney slot being vertically arranged, and 20 lower end of liquid inlet joint is connected with third plunger 21, is located at standing valve cover
It is set with lower travelling valve spool 26 on the third plunger 21 of 23 lower parts, is cased on the third plunger 21 on 26 top of lower travelling valve spool
Pump barrel 28 is sealed, sealing 28 upper end screwed connection of pump barrel has the clamping nut 25 for compressing lower travelling valve spool 26.Lower travelling
Cone and the sealing of lower travelling valve valve seat 27 on valve core 26 cooperate.21 lower part of third plunger is set with for preventing lower travelling valve
The centering ring 31 that spool 26 glances off, the liquid of 32 lower part of lower contact enters lower travelling valve spool 26, lower travelling in order to prevent
The lower end of valve core 26 is equipped with oil inlet stifled 33.
The viscous crude dispensing point of the utility model adopts eccentric oil well pump 100 in use, with distributing valve 200, packer is closed
300, lower distributing valve 400 and ball seat 500 use, respectively to above adopt layer A and under adopt a layer B gas injection.Use the utility model gas injection
When, sucker rod is above mentioned, plunger top connection 3, plunger trombone slide 5, the second plunger 10, third plunger 21, oil inlet stifled 33 are with sucker rod
It moves upwardly together, above mentions to 6~7m, form big steam injection channel in entire pump barrel.Start gas injection, steam from top to bottom from
Annular space that oil pipe, upper pump barrel 2 and the first plunger 6 and the second plunger 10 surround, lower pump barrel 14 enter first layer, due to lower pump
Big duct is provided on cylinder 14, steam sufficiently can inject first layer from the duct on lower pump barrel 14, that is, realize the note to first layer
Vapour, at this time due to steam pressure effect in pump barrel, eccentric valve is closed.Another aspect steam, which enters, forms big steam stream in pump barrel,
Big steam stream passes through the first outer tube 19, lower travelling valve outer cylinder 24, the second outer tube 30, lower contact 32, into after the oil pipe of tail portion, injection
The second layer, to realize the layer steam injection to two oil reservoirs.The first plunger 6 is transferred after steam injection to original position, adjustment is anti-
Punching is produced away from that can open pumping.
The utility model is divided into upstroke and two steps of down stroke when pumping.When the utility model carries out upstroke, column
Connector 3, plunger trombone slide 5, the first plunger 6, upward-traveling valves spool 8, plunger center tap 9, the second plunger 10, oil inlet valve bonnet beyond the Great Wall
17, third plunger 21 is moved upwards with rod string, and upward-traveling valves spool 8 is located on upward-traveling valves valve seat 7, at this time upstream
Dynamic valve is closed.Eccentric valve crude oil pump intake pressure effect under open, oil liquid from eccentric valve base joint 13, eccentric valve, upper pump barrel 2 with
Second plunger, 10 annular space enters pump chamber, completes the imbibition process of first layer.Valve due to head of liquid, in oil inlet valve bonnet 17
Ball seat is fallen on valve seat, and inlet valve is closed at this time, and due to lower travelling valve spool 26 as sealing pump barrel 28 moves upwards, downstream
Dynamic valve core 26 is separated with lower travelling valve valve seat 27, and lower travelling valve is opened at this time.Lower layer's oil liquid is from 32 inner cavity of lower contact, centering ring
31 and 30 annular space of the second outer tube, the second outer tube 30 and sealing 28 annular space of pump barrel, third box cupling 29 and sealing pump barrel 28
Liquid channel of crossing on annular space, lower travelling valve outer cylinder 24 and 21 annular space of third plunger, standing valve cover 23 enters lower layer's pump
Chamber completes the imbibition process of the second layer.When the utility model carries out down stroke, plunger top connection 3, plunger trombone slide 5, upward-traveling valves
Spool 8, plunger center tap 9, the second plunger 10, oil inlet valve bonnet 17, liquid inlet joint 20, third plunger 21 with rod string to
Lower movement, upward-traveling valves spool 8 and upward-traveling valves valve seat 7 disengage, and upward-traveling valves are opened at this time；And since head of liquid acts on,
Valve ball in eccentric valve is located on valve seat, and eccentric valve is closed.Oil liquid from open upward-traveling valves enter upward-traveling valves valve seat 7 with
5 annular space of plunger trombone slide, the first plunger 6 and 5 annular space of plunger trombone slide, pipe close 4 and 5 annular space of plunger trombone slide, plunger
Lead channel in top connection 3 and upper 2 annular space of pump barrel, plunger top connection 3 completes the drain of first layer subsequently into oil pipe
Process.Valve ball in oil inlet valve bonnet 17 is due to head of liquid effect and valve seat disengagement, and inlet valve is opened at this time；And due to lower travelling
Valve core 26 is moved downward with sealing pump barrel 28, and lower travelling valve spool 26 is located on lower travelling valve valve seat 27, at this time downstream
Dynamic valve is closed.Oil liquid enters in the second plunger 10 from open inlet valve, and then enters oil pipe, completes the drain of the second layer.And
And since the sealing of 20 lower end structure of liquid inlet joint is dead, the design of pressure differential structure is so that during down stroke, to third plunger 21
Downward hydraulic feedback power is generated, 21 downlink of third plunger is facilitated.
Claims (8)
1. a kind of viscous crude dispensing point adopts eccentric oil well pump, including the pump housing, the pump body is equipped with plunger assembly, the viscous crude point
It includes gas injection stroke and oil recovery stroke that note point, which adopts eccentric oil well pump, and oil recovery stroke includes upstroke and down stroke, it is characterised in that:
In gas injection stroke procedure, gas injection channel is formed between plunger assembly and the pump housing, the pump housing is equipped with upper gas injection port and lower gas injection port；On
In stroke procedure, upper oil suction chamber and lower oil suction chamber are formed between plunger assembly and the pump housing；During down stroke, upper oil suction chamber is through upper
Oil recovery chamber enters oil pipe extraction, and lower oil suction chamber enters oil pipe through lower oil recovery chamber and produces.
2. viscous crude dispensing point according to claim 1 adopts eccentric oil well pump, it is characterised in that: on the upside of the upper gas injection port
The pump housing is equipped with the eccentric valve for entering for above adopting layer crude oil.
3. viscous crude dispensing point according to claim 2 adopts eccentric oil well pump, it is characterised in that: the pump housing on the upside of eccentric valve is set
There is upward-traveling valves valve seat, plunger assembly is equipped with the upward-traveling valves spool cooperated with upward-traveling valves valve base sealing, and upward-traveling valves are close
Feng Shi, the annular space between plunger assembly and the pump housing between upward-traveling valves and eccentric valve are upper oil suction chamber.
4. viscous crude dispensing point according to claim 3 adopts eccentric oil well pump, it is characterised in that: when upward-traveling valves are opened, on
The annular space between plunger assembly and the pump housing on the upside of travelling valve base is upper oil recovery chamber.
5. viscous crude dispensing point according to claim 1 adopts eccentric oil well pump, it is characterised in that: the pump housing on the downside of upper gas injection port
It is equipped with lower travelling valve valve seat, plunger assembly is equipped with the lower travelling valve spool cooperated with lower travelling valve valve base sealing.
6. viscous crude dispensing point according to claim 5 adopts eccentric oil well pump, it is characterised in that: on the upside of lower travelling valve spool
Plunger assembly is equipped with inlet valve, when lower travelling valve is opened, between the plunger assembly and the pump housing between lower travelling valve and inlet valve
Annular space be lower oil suction chamber.
7. viscous crude dispensing point according to claim 6 adopts eccentric oil well pump, it is characterised in that: lower travelling valve closing and oil inlet
When valve is opened, the plunger assembly inner cavity on the upside of inlet valve is lower oil recovery chamber, and plunger assembly upper end is equipped with for adopting a layer crude oil under supplying
Go out oil groove into oil pipe.
8. described in any item viscous crude dispensings point adopt eccentric oil well pump according to claim 1 ~ 7, it is characterised in that: the plunger group
Part is equipped with for preventing the inclined centering ring of plunger assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821466120.0U CN209385322U (en) | 2018-09-07 | 2018-09-07 | A kind of viscous crude dispensing point adopts eccentric oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821466120.0U CN209385322U (en) | 2018-09-07 | 2018-09-07 | A kind of viscous crude dispensing point adopts eccentric oil well pump |
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| Publication Number | Publication Date |
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| CN209385322U true CN209385322U (en) | 2019-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821466120.0U Active CN209385322U (en) | 2018-09-07 | 2018-09-07 | A kind of viscous crude dispensing point adopts eccentric oil well pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550216A (en) * | 2020-04-29 | 2020-08-18 | 山东省寿光市六丰实业有限公司 | Injection-production integrated lifting device |
-
2018
- 2018-09-07 CN CN201821466120.0U patent/CN209385322U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550216A (en) * | 2020-04-29 | 2020-08-18 | 山东省寿光市六丰实业有限公司 | Injection-production integrated lifting device |
| CN111550216B (en) * | 2020-04-29 | 2021-12-21 | 山东省寿光市六丰实业有限公司 | Injection-production integrated lifting device |
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