CN107829713A - Oil recovery volume control device and oil extraction device - Google Patents
Oil recovery volume control device and oil extraction device Download PDFInfo
- Publication number
- CN107829713A CN107829713A CN201711323439.8A CN201711323439A CN107829713A CN 107829713 A CN107829713 A CN 107829713A CN 201711323439 A CN201711323439 A CN 201711323439A CN 107829713 A CN107829713 A CN 107829713A
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- China
- Prior art keywords
- runner
- control device
- oil
- volume control
- oil recovery
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- 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
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
Abstract
The present invention relates to oil and gas exploration technology field, is related to oil recovery volume control device and oil extraction device；Oil recovery includes central tube with volume control device, flow controlling unit and the sleeve for being set in center pipe outer wall, when fluid is entered in controller from inlet, then runner and fluid passage selection device are passed through, finally discharged from liquid outlet, stratum liquid/gas is broadly divided into oil or water/gas, the viscosity of water is small, density is big, and then inertia is big, the density of gas is small, speed is big, and the viscosity of oil is big, density is small, and then inertia is small, therefore when stratum liquid/gas enter it is fashionable, different runners can be selected, so as to which different additional drags can be produced, realize flow control action, control the effect of the steady oil of water/gas；Oil extraction device includes sand control screen and oil recovery volume control device, and oil extraction device has above-mentioned advantage compared with prior art.
Description
Technical field
The present invention relates to oil and gas exploration technology field, in particular to oil recovery volume control device and adopts
Oily device.
Background technology
During oil exploitation, with the exploitation of oil, well water/gas rate can be gradually increasing, it will usually be utilized
Flow control tool control formation fluid flows into the speed of pit shaft, to meet the needs of production.The flow applied in the prior art
The main perforation type flow control tool of control instrument, screw type flow control tool and mixed type flow control tool.
Aperture-type flow control tool is to realize the control to formation fluid according to several eyelets being reserved on instrument
System.The pre-designed physical dimension of eyelet, formation fluid is set to produce additional choke pressure drop when flowing through by the throttling action of eyelet.
So as to reach control into the purpose of wellbore fluid flow.Screw type flow controller makes to produce by the frictional resistance of helical duct
Raw parasitic pressure drop.Mixed type flow control tool is the collective effect by eyelet and helical duct, produces choke pressure drop, so as to
Have the function that to control flow.
But above-mentioned three kinds of flow controllers are worked by the passage pre-set, once instrument enters well, lead to
Road is at conducting state, so as to be controlled according to the change of the content of formation fluid or the oil reservoir physical state of reservoir
Formation fluid flows into the speed of pit shaft.Further, since aperture-type control instrument is needed very small, the spiral for the eyelet design that throttles
Type controller passage is complicated, when carrying solid impurity (such as formation particle) in fluid, easily blocks.
Therefore it provides a kind of can control the oil recovery flow control that fluid enters pit shaft speed according to the characteristic of formation fluid
Device and oil extraction device processed turn into those skilled in the art's important technological problems to be solved.
The content of the invention
The first object of the present invention is to provide a kind of oil recovery volume control device, entered with alleviating fluid in the prior art
Enter pit shaft speed can not automatic adjusument technical problem.
One kind oil recovery volume control device provided by the invention, including central tube, flow controlling unit and it is set in institute
State the sleeve of center pipe outer wall；
The center pipe outer wall is offered into circulation road, it is described enter circulation road on offer for setting the flow to control
The mounting groove of unit；
The flow controlling unit for controlling flow includes upper cover plate and controller, the upper cover plate and the control
Device connects；
The controller includes controller body, inlet, runner, fluid passage selection device and liquid outlet；
The liquid outlet is located at the center of the controller body, and the controller body is set successively from edge to center
It is equipped with the inlet, the runner, the fluid passage selection device and the liquid outlet.
Further, the inlet, the runner, the fluid passage selection device and liquid outlet are both with respect to the controller
Body central point is in array distribution, and is in " vortex " formula structure.
Further, the runner includes feed liquor runner, nearly runner, middle runner, remote runner and current limiter；
The feed liquor runner is located on the outside of the fluid passage selection device, nearly runner, the middle runner and the remote runner
It is respectively positioned between the fluid passage selection device two-by-two, the current limiter is located on the inside of the fluid passage selection device.
Further, the inlet passes through the feed liquor runner and the nearly runner, the middle runner and the remote stream
Road is connected, and the width of the feed liquor runner is gradually reduced inward by opening.
Further, the nearly runner, the middle runner and the remote runner are circular arc type, the circular arc size phase of three
Together, and its exit and the current limiter are tangent.
Further, the inlet for receiving stratum liquid/gas is " horn mouth " shape.
Further, the fluid passage selection device is in crescent, fluid passage selection device and the controller wherein at inlet
Body is connected；
Be provided with radial flow path and lateral channel on the fluid passage selection device being connected with the controller body, it is described enter
Liquid stream road passes through the lateral channel and the current limiter by the radial flow path and the remote flow passage, the nearly runner
Connection.
Further, it is described enter circulation road on be provided with rectification passage for rectified action；
The rectification passage is located at the installation front of the slot.
Further, the sleeve and the central tube are detachably connected, and are sealed by sealing ring.
The second object of the present invention is to provide a kind of oil extraction device, with alleviate fluid in the prior art enter pit shaft speed without
The technical problem of method automatic adjusument.
A kind of oil extraction device provided by the invention, including sand control screen and the oil recovery volume control device；
The sand control screen is connected with the oil recovery with volume control device.
Beneficial effect：
One kind oil recovery volume control device provided by the invention, including central tube, flow controlling unit and be set in
The sleeve of heart pipe outer wall, central tube and sleeve coordinate, and center pipe outer wall is offered into circulation road, enter circulation road be in central tube and
Between sleeve, while enter on circulation road the mounting groove offered for setting flow controlling unit, in use, liquid/gas from
Enter circulation road entrance, then flow to mounting groove direction, flowed into through flow controlling unit in central tube, specifically, being used for controlling stream
The flow controlling unit of amount includes upper cover plate and controller, and upper cover plate is connected with controller, so as to be formed for flow control
Runner, flow controlling unit is set to play flow control action, specifically, controller includes controller body, inlet, stream
Road, fluid passage selection device and liquid outlet, liquid outlet are located at the center of controller body, controller body from edge to center successively
Be provided with inlet, runner, fluid passage selection device and liquid outlet, wherein runner includes a variety of different subflow roads, when liquid/gas from
Inlet is entered in controller, then by runner and fluid passage selection device, is finally discharged from liquid outlet, specifically, formation fluid
Body/gas is broadly divided into oil or water/gas, and the viscosity of water is small, and density is big, and then inertia is big, and the density of gas is small, and speed is big, and oily
Viscosity it is big, density is small, and then inertia is small, thus when stratum liquid/gas enter it is fashionable, liquid can according to fluid passage selection device select not
Same runner, so as to produce different additional drags, flow control action is realized, that is, controls the effect of the steady oil of water/gas.
A kind of oil extraction device provided by the invention, including sand control screen and oil recovery volume control device；Sand control screen is with adopting
Oil is connected with volume control device, and oil extraction device has above-mentioned advantage compared with prior art, no longer superfluous herein to chat.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is oil recovery volume control device structural representation provided in an embodiment of the present invention；
Fig. 2 is the structural representation of oil recovery volume control device inside center pipe provided in an embodiment of the present invention；
Fig. 3 is the oblique view of flow controlling unit in oil recovery volume control device provided in an embodiment of the present invention；
Fig. 4 is a kind of embodiment party of flow controlling unit in oil recovery volume control device provided in an embodiment of the present invention
Formula；
Fig. 5 is another implementation of flow controlling unit in oil recovery volume control device provided in an embodiment of the present invention
Mode.
Icon：100- central tubes；101- enters circulation road；102- mounting grooves；103- rectification passages；200- flow controls
Unit processed；201- upper cover plates；202- controllers；2021- controller bodies；203- inlets；204- runners；2041-
Feed liquor runner；The nearly runners of 2042-；Runner in 2043-；The remote runners of 2044-；2045- current limiters；2046- radial flow paths；
2047- lateral channels；205- fluid passage selection devices；206- liquid outlets；300- sleeves；400- sealing rings.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
The present invention is described in further detail below by specific examples of the implementation and with reference to accompanying drawing.
Fig. 1 is oil recovery volume control device structural representation provided in an embodiment of the present invention；Fig. 2 is the embodiment of the present invention
The structural representation of the oil recovery volume control device inside center pipe of offer；Fig. 3 uses for provided in an embodiment of the present invention recover the oil
The oblique view of flow controlling unit in volume control device；Fig. 4 is oil recovery flow control dress provided in an embodiment of the present invention
Put the structural representation of middle flow controlling unit；Fig. 5 is that oil recovery provided in an embodiment of the present invention is flowed with volume control device
Measure the another embodiment of control unit.
It is as Figure 1-Figure 5 a kind of oil recovery volume control device provided in an embodiment of the present invention, including central tube
100th, flow controlling unit 200 and it is set in the sleeve 300 of the outer wall of central tube 100；The outer wall of central tube 100 is offered into circulation road
101, enter on circulation road 101 mounting groove 102 offered for setting flow controlling unit 200；For controlling the flow of flow
Control unit 200 includes upper cover plate 201 and controller 202, and upper cover plate 201 is connected with controller 202；Controller 202 includes control
Device body 2021, inlet 203, runner 204, fluid passage selection device 205 and liquid outlet 206 processed；Liquid outlet 206 is located at controller sheet
At the center of body 2021, controller body 2021 is disposed with inlet 203, runner 204, fluid passage selection from edge to center
Device 205 and liquid outlet 206.
One kind oil recovery volume control device provided in an embodiment of the present invention, including central tube 100, flow controlling unit
200 and the sleeve 300 of the outer wall of central tube 100 is set in, central tube 100 coordinates with sleeve 300, and the outer wall of central tube 100 offers
Enter circulation road 101, enter circulation road 101 and be between central tube 100 and sleeve 300, while enter on circulation road 101 to offer and be used for
The mounting groove 102 of flow controlling unit 200 is set, in use, liquid/gas enters from circulation road 101 is entered, then flow direction installation
The direction of groove 102, flowed into through flow controlling unit 200 in central tube 100, specifically, the flow controlling unit for controlling flow
200 include upper cover plate 201 and controller 202, and upper cover plate 201 is connected with controller 202, so as to form the stream for flow control
Body passage, flow controlling unit 200 is set to play flow control action, specifically, controller 202 includes controller body
2021st, inlet 203, runner 204, fluid passage selection device 205 and liquid outlet 206, liquid outlet 206 are located at controller body 2021
At center, controller body 2021 is disposed with inlet 203, runner 204, the and of fluid passage selection device 205 from edge to center
Liquid outlet 206, its runner 204 includes a variety of different subflow roads 204, when liquid/gas enters controller from inlet 203
In 202, then by runner 204 and fluid passage selection device 205, finally discharged from liquid outlet 206, specifically, stratum liquid/gas
Oil or water/gas are broadly divided into, the viscosity of water is small, and density is big, and then inertia is big, and the density of gas is small, and speed is big, and the viscosity of oil
Greatly, density is small, and then inertia is small, therefore when stratum liquid/gas enters fashionable, liquid can select different runners 204, different stream
Road 204 can produce different additional drags, so as to realize flow control action, that is, control the effect of the steady oil of water/gas.
Upper cover plate 201 and controller 202 are an entirety during actual use, using friction welding (FW) mode, be welded as one it is whole
Body, the flow controlling unit 200 after welding, it is put into the mounting groove 102 on central tube 100, and uses Laser Welding or copper pricker
Weldering is fixed, it is ensured that the stabilization of flow controlling unit 200 in use, will not influence its work because pressure is excessive
State.
Wherein, the outlet coordinated with liquid outlet 206 is provided with the center of mounting groove 102, when flow controlling unit 200 is set
When at mounting groove 102, liquid outlet 206 is corresponding with outlet.
In the alternative of the present embodiment, inlet 203, runner 204, fluid passage selection device 205 and liquid outlet 206 are relative
It is in array distribution in the central point of controller body 2021, and is in " vortex " formula structure
Specifically, inlet 203, runner 204, fluid passage selection device 205 and liquid outlet 206 are both with respect to controller body
2021 central points are in array distribution, when liquid/gas enter controller 202 after, the pressure of controller 202 is tended to be flat
Weighing apparatus, avoids controller 202 because of the excessive damage for causing controller 202 of certain region stress, it is ensured that the long-term of controller 202 normally makes
With.
And when make it that liquid/gas is entered in controller 202, it can be advanced with cyclonic form, realize the effect of throttling.
In the alternative of the present embodiment, runner 204 includes feed liquor runner 2041, nearly runner 2042, middle runner 2043, remote
Runner 2044 and current limiter 2045；Feed liquor runner 2041 is located at the outside of fluid passage selection device 205, nearly runner 2042, middle runner 2043
And remote runner 2044 is respectively positioned between fluid passage selection device 205 two-by-two, current limiter 2045 is located at the inner side of fluid passage selection device 205.
Specifically, runner 204 includes feed liquor runner 2041, nearly runner 2042, middle runner 2043, remote runner 2044 and current limliting
Device 2045, after formation fluid enters, flowed into inwards along feed liquor runner 2041, when flowing to first and flow to selector, root
The size of each flow of runner 204 is selected according to the physical characteristic of stratum liquid/gas, so as to which a part of liquid passes through nearly runner 2042
Flow inwards, another part continues through feed liquor runner 2041 and flows to second fluid passage selection device 205, is selected by second
Afterwards, inwardly flowed by middle runner 2043 and remote runner 2044 respectively, until being discharged from liquid outlet 206.
Because stratum liquid/gas is broadly divided into oil or water/gas, the viscosity of water is small, and density is big, and then inertia is big, gas
Density is small, and speed is big, and the viscosity of oil is big, and density is small, and then inertia is small.Therefore when stratum liquid/gas is oily, liquid can select
Nearly runner 2042 is selected, nearly runner 2042 is shorter, therefore it is smaller to prolong journey frictional resistance；And when stratum liquid/gas is water/gas, liquid meeting
Select remote runner 2044, remote runner 2044 is longer, prolongs that journey frictional resistance is larger, fluid passage selection device 205 can according to the stratum liquid of entrance/
The rate containing water/gas of gas distributes the uninterrupted of each runner 204, so produce it is different prolong journey frictional resistance, final result is
It is larger to the resistance of water/gas, it is smaller to the resistance of oil.
Wherein, flow control tool is adaptive flow control device, and it, can be with base area due to the design feature of itself
The resistance of the property adjust automatically convection body of layer production liquid, realizes flow control action, that is, controls the steady oil effect of water/gas.Work as formation fluid
When body/gas rate containing water/gas is higher, controller 202 produces a higher parasitic pressure drop to stratum liquid/gas, that is, produces
One high-drag, so as to realize flow control action, that is, control water/gas effect.Opposite, when stratum liquid/gas rate containing water/gas
During reduction, the relatively low parasitic pressure drop of generation of the controller 202 to stratum liquid/gas, i.e. convection body resistance is low, i.e., steady oil is made
With.
In the alternative of the present embodiment, inlet 203 passes through feed liquor runner 2041 and nearly runner 2042, middle runner 2043
Connected with remote runner 2044, and the width of feed liquor runner 2041 is gradually reduced inward by opening.
Specifically, the outside of feed liquor runner 2041 forms for circular arc line and with the tangent tangent line of its circular arc line, feed liquor runner
2041 are connected with nearly runner 2042, middle runner 2043 and remote runner 2044.
Also, the width of feed liquor runner 2041 is gradually reduced inward by opening, liquid/gas passes through feed liquor runner 2041
Afterwards, the flow velocity of fluid is improved, avoids debris from being deposited in feed liquor runner 2041.
Wherein, entrance, the entrance of middle runner 2043 and the remote runner 2044 of feed liquor runner 2041 and nearly runner 2042
Entrance it is tangent.
In the alternative of the present embodiment, nearly runner 2042, middle runner 2043 and remote runner 2044 are circular arc type, three
Circular arc size it is identical, and its exit and current limiter 2045 are tangent.
Specifically, nearly runner 2042, middle runner 2043 and remote runner 2044 are circular arc type, the circular arc size phase of three
Together, and three's entrance is with the different circular arcs that feed liquor runner 2041 is same circle, and exit and current limiter 2045 are tangent, fluid
Whirlpool can be formed in current limiter 2045 after nearly runner 2042, middle runner 2043 and remote runner 2044, in current limiter 2045
Do not stop to internal rotation, so as to improve throttle resistance.
In the alternative of the present embodiment, the inlet 203 for receiving stratum liquid/gas is " horn mouth " shape.
It is in " horn mouth " shape that inlet 203, which is set, improves the entrance of fluid.
In the alternative of the present embodiment, fluid passage selection device 205 is in crescent, the wherein fluid passage selection at inlet 203
Device 205 is connected with controller body 2021；Radial flow path is provided with the fluid passage selection device 205 being connected with controller body 2021
2046 and lateral channel 2047, feed liquor runner 2041 connected by radial flow path 2046 with remote runner 2044, nearly runner 2042 is logical
Lateral channel 2047 is crossed to connect with current limiter 2045.
Fluid passage selection device 205 is arranged to crescent, cooperatively forms curved channel with runner 204 so that fluid is in current limiter
Eddy flow is formed in 2045.
A part of liquid can prolong radial flow path 2046, flow into the remote runner 2044 of opposite side, and another part liquid flows to the
One when flow to selector, the size of each flow of runner 204 is selected according to the physical characteristic of stratum liquid/gas, so as to
A part of liquid is flowed inwards by nearly runner 2042, when flowing to lateral channel 2047, fluid can part from radial flow path 2046,
Into current limiter 2045.
Specifically, because stratum liquid/gas is broadly divided into oil or water/gas, the viscosity of water is small, and density is big, and then inertia
Greatly, the density of gas is small, and speed is big, and the viscosity of oil is big, and density is small, and then inertia is small.Therefore when stratum liquid/gas is oily,
Oil can select radial flow path 2046, nearly runner 2042, lateral channel 2047, and then prolong radial direction and flow into current limiter 2045, by
Prolong substantially in liquid and radially flow directly to liquid outlet 206, prolong that journey frictional resistance is smaller, thus it is small to the additional drag of oil；And work as formation fluid
When body/gas is water/gas, liquid can select remote runner 2044, and remote runner 2044 is longer, and it is larger to prolong journey frictional resistance, and flows through remote stream
Behind road 2044, water/gas can prolong tangent line and enter current limiter 2045, and whirlpool is formed in current limiter 2045, long flow path, and resistance is big.
It is therefore big to the additional drag of water/gas.Fluid passage selection device 205 can distribute each according to the rate containing water/gas of the stratum liquid/gas of entrance
The uninterrupted of individual runner 204, and then produce different additional drag, final result is larger to the resistance of water/gas, to oil
Resistance it is smaller.
Wherein, in actual production process, the angle of radial flow path 2046 and lateral channel 2047 can be according to liquid
Viscosity determines.
In the alternative of the present embodiment, enter on circulation road 101 the rectification passage 103 being provided with for rectified action；It is whole
Circulation road 103 is located at the front end of mounting groove 102.
Meanwhile enter on circulation road 101 to be additionally provided with rectification passage 103, wherein rectification passage 103 is used for rectification, and reduction is set
Standby concussion, it is ensured that fluid enters in flow controlling unit 200 in order.
Wherein, rectification passage 103 is located at the front end of mounting groove 102, i.e. fluid first passes through the rectification work of rectification passage 103
With in entrance flow controlling unit 200.
Specifically, rectification passage 103 is to be arranged on into the projection on circulation road 101.
For rectification passage 103 by convexing to form on central tube 100, rectification passage 103 plays rectified action, stratum liquid/gas
Body is after runner 204 is come in, and into the rectification passage 103 of regular array, after the rectification of rectified passage 103, enters inbound traffics
Control unit 200.
The projection of wherein formation rectification passage 103, which can be made, to be spaced, and can also be arranged to rib strip shaped, but need with
The axial direction of heart pipe 100 is consistent.
In the alternative of the present embodiment, sleeve 300 and central tube 100 are detachably connected, and close by sealing ring 400
Envelope.
Sleeve 300 and central tube 100 are detachably connected, and are convenient for changing repairing, and close by sealing ring 400 between the two
Envelope, ensure that fluid will not be revealed.
In summary, relative to the instrument that flow control is carried out only with outlet aperture, flow control proposed by the present invention
Instrument makes liquid, and add runner 204 prolongs journey frictional resistance and swirl velocity throttle resistance before outflow exports.Therefore liquid flows through
During this flow control tool, additional choke pressure drop is added.Due to the difference of the physical characteristic of liquid, place flow control work
The difference in the path walked in tool, therefore produce different choke pressure drops.The big liquid containing water/gas produces choke pressure drop and is much larger than oil-containing
Big.Therefore, flow control tool proposed by the invention, which has, meets the high frictional resistance of water/gas, meets the low frictional resistance of oil, voluntarily regulation oil
The function of water/gas resistance.
A kind of oil extraction device provided in an embodiment of the present invention, including sand control screen and oil recovery volume control device；Sand screen
Pipe is connected with oil recovery with volume control device.
A kind of oil extraction device provided in an embodiment of the present invention, including sand control screen and oil recovery volume control device；Sand screen
Pipe is connected with oil recovery with volume control device, and oil extraction device has above-mentioned advantage compared with prior art, no longer superfluous herein to chat.
One end inside thread of central tube 100 is connected with sand control screen base-tube, and sleeve 300 is connected and close with sand control screen overcoat
Envelope, forms circular passage so between sand control screen and base tube.Stratum liquid/gas is after sand control screen filters, into ring
Shape space, and then by entering circulation road 101 and rectification passage 103 on volume control device, it flow to flow controlling unit 200
Inlet 203, and then enter controller 202, finally realize flow control.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
- A kind of 1. oil recovery volume control device, it is characterised in that including：Central tube, flow controlling unit and it is set in described The sleeve of center pipe outer wall；The center pipe outer wall is offered into circulation road, it is described enter circulation road on offer for setting the flow controlling unit Mounting groove；The flow controlling unit for controlling flow includes upper cover plate and controller, and the upper cover plate connects with the controller Connect；The controller includes controller body, inlet, runner, fluid passage selection device and liquid outlet；The liquid outlet is located at the center of the controller body, and the controller body is disposed with from edge to center The inlet, the runner, the fluid passage selection device and the liquid outlet.
- 2. oil recovery volume control device according to claim 1, it is characterised in that the inlet, the runner, institute It is in array distribution that fluid passage selection device and liquid outlet, which are stated, both with respect to the controller body central point, and is in " vortex " formula structure.
- 3. oil recovery volume control device according to claim 1, it is characterised in that the runner include feed liquor runner, Nearly runner, middle runner, remote runner and current limiter；The feed liquor runner is located on the outside of the fluid passage selection device, the nearly runner, the middle runner and the remote equal position of runner Between the fluid passage selection device two-by-two, the current limiter is located on the inside of the fluid passage selection device.
- 4. oil recovery volume control device according to claim 3, it is characterised in that the inlet passes through the feed liquor Runner is connected with the nearly runner, the middle runner and the remote runner, and the width of the feed liquor runner by opening inward by It is decrescence small.
- 5. oil recovery volume control device according to claim 3, it is characterised in that nearly runner, the middle runner It is circular arc type with the remote runner, the circular arc size of three is identical, and its exit and the current limiter are tangent.
- 6. oil recovery volume control device according to claim 1, it is characterised in that for receiving stratum liquid/gas The inlet be " horn mouth " shape.
- 7. oil recovery volume control device according to claim 3, it is characterised in that the fluid passage selection device is in crescent moon Shape, the fluid passage selection device wherein at inlet are connected with the controller body；Be provided with radial flow path and lateral channel on the fluid passage selection device being connected with the controller body, it is described enter liquid stream Road is connected by the radial flow path and the remote flow passage, the nearly runner by the lateral channel and the current limiter It is logical.
- 8. oil recovery volume control device according to claim 1, it is characterised in that it is described enter circulation road on be provided with use In the rectification passage of rectified action；The rectification passage is located at the installation front of the slot.
- 9. according to the oil recovery volume control device described in claim any one of 1-8, it is characterised in that the sleeve and institute State central tube to be detachably connected, and sealed by sealing ring.
- 10. a kind of oil extraction device, it is characterised in that including the oil recovery flow described in sand control screen and claim any one of 1-9 Control device；The sand control screen is connected with the oil recovery with volume control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711323439.8A CN107829713A (en) | 2017-12-12 | 2017-12-12 | Oil recovery volume control device and oil extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711323439.8A CN107829713A (en) | 2017-12-12 | 2017-12-12 | Oil recovery volume control device and oil extraction device |
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| Publication Number | Publication Date |
|---|---|
| CN107829713A true CN107829713A (en) | 2018-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711323439.8A Pending CN107829713A (en) | 2017-12-12 | 2017-12-12 | Oil recovery volume control device and oil extraction device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678714A (en) * | 2018-06-28 | 2018-10-19 | 安东石油技术（集团）有限公司 | Water-control oil-increasing device, screen casing and tubing string |
| CN111119804A (en) * | 2018-10-31 | 2020-05-08 | 中国石油化工股份有限公司 | Fluid inflow control device |
| WO2023130895A1 (en) * | 2022-01-04 | 2023-07-13 | 中国石油天然气股份有限公司 | Flow controller for uniform producing of horizontal well, and application method |
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