CN206158669U - Entry control valve flows - Google Patents
Entry control valve flows Download PDFInfo
- Publication number
- CN206158669U CN206158669U CN201621211821.0U CN201621211821U CN206158669U CN 206158669 U CN206158669 U CN 206158669U CN 201621211821 U CN201621211821 U CN 201621211821U CN 206158669 U CN206158669 U CN 206158669U
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- valve
- valve body
- hole
- valve element
- case
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Abstract
The utility model discloses an entry control valve flows is become by disk seat, time valve body, case, last valve body set. The disk seat is installed on production pipe line, and inside the opening of disk seat has the shoulder hole, during the valve body is embedded into the shoulder hole of disk seat down, inject axial position through the boss, inside the opening of lower valve body has the taper hole, going up valve body upper portion and opening the round hole, the curved surface hole is opened to the lower part, goes up the valve body and twists on the disk seat with threaded connection's mode, the case is arranged in by the taper hole of lower valve body and within the space that upward the curved surface hole of valve body constitutes, the case is the entity by the runner constituted under the conical surface, case top -surface camber and the case under the case, the slope of the conical surface is greater than the slope of the taper hole of valve body under the case, and the runner is the rectangular groove of equipartition conical surface lower extreme under the case under the case. The utility model relates to an entry control valve flows can be according to the runner space size of fluidic kind in the oil gas layer and composition self regulating valve, the inflow of increase oil, and the inflow of control water gentleness, prevent the water layer and the gas -bearing formation pierces through to control the output and the quality of oil effectively.
Description
Technical field
The present invention relates to horizontal well reservoir harvests field, more particularly to one kind can well control fluid in oil-gas Layer
Mixture is flowed into the inflow control valve of production flow line.
Background technology
Horizontal well refers to that hole angle reaches or close 90 °, and well depth creeps into the well of certain length along horizontal direction.It is general next
Say, horizontal well is applied to thin oil-gas Layer or fractured reservoirs, it is therefore intended that the bare area of increase oil-gas Layer.Producing
Cheng Zhong, due to the flowage friction drag effects of fluid, along on the flow direction of horizontal well, oil-gas Layer and production pipe in horizontal line
On pressure reduction constantly change, so result in speed of production at upstream end and downstream inconsistent.In order that whole production flow line
On speed of production it is uniform, production pipe in horizontal line the inflow control valves of many static state can be arranged to control oil-gas Layer in oil,
The gentle inflow of water.Early stage is produced in horizontal well, static inflow control valve has good operating characteristic, but with production
Carry out, the species and composition of fluid can change in oil-gas Layer, at this moment static inflow control valve can not be to heterogeneity
Oil, water is gentle and its mixture makes a distinction, it is impossible to which water and gas are occurring to hinder or delay when water layer or gas blanket are penetrated
Flow into, inflow control valve it cannot be guaranteed that according to design mode there is optimal inflow control characteristic, can so affect oil product
Yield and quality.
The content of the invention
The purpose of the present invention be for horizontal well produce oil during occur oil quality it is poor, yield poorly the problems such as,
A kind of inflow control valve that can be automatically obtained control water control gas is provided.
The technical solution adopted in the present invention is：A kind of inflow control valve, the valve by be threadedly coupled or expanded joint in the way of
On production flow line, the height of valve can change, arrangement of the valve on production flow line with the thickness of production flow line difference
Can adjust according to the different of production status.A kind of inflow control valve of present invention control is by valve seat, lower valve body, valve element, upper valve body
Composition.Valve seat is arranged on production flow line, and shoulder hole is provided with inside valve seat；Lower valve body is embedded in the shoulder hole of valve seat, passes through
Boss limits axial location, and taper hole is provided with inside lower valve body；Circular hole is opened on upper valve body top, bottom open surface hole, and upper valve body is with spiral shell
The mode of stricture of vagina connection is screwed on valve seat；Valve element be placed in the space that is made up of the taper hole of lower valve body and the curved hole of upper valve body it
It is interior.
Valve element is the entity being made up of the conical surface, valve element top-surface camber and valve element lower flow channel under valve element.
Valve element top-surface camber is relative with the curved hole of upper valve body to constitute curved surface runner；The taper hole phase of the conical surface and lower valve body under valve element
The slope of the conical surface is greater than the slope of the taper hole of valve body under to constituting tapered runner, and valve element, and valve element lower flow channel is to be distributed on
The strip grooves of conical surface lower end under valve element, when the conical surface is fitted with the taper hole inside lower valve body under valve element, because there is valve element lower flow channel, stream
Enter valve will not choke-out, still have fluid flow into production flow line in.
Valve element is P1 in the lateral pressure of oily reservoir one, and pressure is P2 at curved surface runner, is P3 in the lateral pressure of pipeline one；Upper valve
Body top circular hole area is A1, and upper valve body is A2 with the annulus area that valve element is constituted, and valve element bottom area is A3, therefore is acted on
The Δ F that makes a concerted effort on valve element 2-3 can be expressed as：Δ F=P1 × A1+P2 × A2-P3 × A3.
, due to the difference of viscosity, flow resistance is just different when flowing through curved surface runner for different fluids, thus flow velocity is just not yet
Together.It can be seen from Bernoulli equation, pressure head, velocity head and level head sum are constant.
The speed that fluid flows through is faster, and pressure P2 is less at curved surface runner；Speed v for flowing through is slower, presses at curved surface runner
Power P2 is bigger.
Oily viscosity is high, and flowing velocity is slow, and pressure P2 when it flows through curved surface runner is big, and such valve element is just by as much as possible
Lower valve body side is pressed to, so as to allow more oil to flow through；Water viscosity is low, and flowing velocity is fast, pressure when it flows through in passage
P2 is little, and such valve element is just pressed to as much as possible upper valve body side, so as to the aquiform stool for allowing to flow through can be reduced；When the stream for flowing through
When body is gas, the viscosity of gas is lower, and faster, at this moment curved surface runner is intended to closure to flow velocity, and gas just hardly passes through.
When fluid is oil, the gentle mixture of water, valve element just can constitute taper hole and upper valve body of the adjust automatically in lower valve body according to it
The position in space that constituted of curved hole, so as to ensure that more oil streams enter production flow line, water is gentle, less flows into.
When valve element is contacted with lower valve body, i.e., valve element top-surface camber constituted curved surface runner relative with the curved hole of upper valve body is most
When big, the flowing space that valve element lower flow channel has should ensure that fluid is flowed completely through, and this is the foundation of lower flow channel size design,
The volume sum of outflow is more than the volume sum for flowing into.
The excellent results of the present invention are that inflow control valve can automatically be adjusted according to the species of fluid in oil-gas Layer and its composition
The flow channel space size of whole valve, increases the inflow of oil, controls the gentle inflow of water, prevents water layer and gas-bearing formation is penetrated, so as to
Efficiently control the yield and quality of oil product.
Description of the drawings
Fig. 1 shows the elevation cross-sectional view of the production flow line for being provided with a kind of inflow control valve of the invention；
Fig. 2 shows the left view profile of the production flow line for being provided with a kind of inflow control valve of the invention；
Fig. 3 shows a kind of structure chart of inflow control valve of the invention；
Fig. 4 a show a kind of valve core structure front view of inflow control valve of the invention；
Fig. 4 b show a kind of valve core structure top view of inflow control valve of the invention；
Fig. 4 c show a kind of valve core structure upward view of inflow control valve of the invention.
In figure, 1-production flow line, 2-valve, 2-1-valve seat, 2-2-lower valve body, 2-3-valve element, 2-4-upper valve body, 2-
The conical surface under 3-1-valve element, 2-3-2-valve element top-surface camber, 2-3-3-valve element lower flow channel.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings.
Fig. 1, Fig. 2 show the profile of the production flow line for being provided with a kind of inflow control valve of the invention.Wherein production pipe
Line 1 is provided with circular hole, and valve 2 is arranged on production flow line 1 in the way of threaded connection or expanded joint, and the height of valve 2 can be with production
The thickness of pipeline 1 is different and change, arrangement of the valve 2 on production flow line 1 can be adjusted according to the difference of production status.
Fig. 3 shows a kind of structure of inflow control valve of the invention.The control valve is by valve seat 2-1, lower valve body 2-2, valve element
2-3, upper valve body 2-4 are constituted.Valve seat 2-1 is arranged on production flow line 1, and shoulder hole is provided with inside it；Lower valve body 2-2 is embedded into valve
In the shoulder hole of seat 2-1, axial location is limited by boss, taper hole is provided with inside it；Upper valve body 2-4 opens circular hole, bottom in top
Open surface hole, is screwed in threadably on valve seat 2-1；Valve element 2-3 is placed in by the taper hole and upper valve body 2- of lower valve body 2-2
Within the space that 4 curved hole is constituted.
Fig. 4 a, Fig. 4 b and Fig. 4 c show a kind of valve core structure of inflow control valve of the invention.Valve element 2-3 is by the lower conical surface
2-3-1, the entity that top-surface camber 2-3-2 and lower flow channel 2-3-3 are constituted.
Valve element top-surface camber 2-3-2 is relative with the curved hole of upper valve body 2-4 to constitute curved surface runner；Under valve element conical surface 2-3-1 with
The relative slope for constituting conical surface 2-3-1 under tapered runner, and valve element of the taper hole of lower valve body 2-2 is greater than the taper hole of valve body 2-2
Slope.
Valve element 2-3 is P1 in the lateral pressure of oily reservoir one, and pressure is P2 at curved surface runner, is P3 in the lateral pressure of pipeline one；
It is A2 that circular holes area in upper valve body 2-4 tops is the annulus area that A1, upper valve body 2-4 and valve element 2-3 are constituted, valve element 2-3 bottoms
Area is A3, thus act on valve element 2-3 make a concerted effort Δ F can be expressed as：Δ F=P1 × A1+P2 × A2-P3 × A3.
, due to the difference of viscosity, flow resistance is just different when flowing through curved surface runner for different fluids, thus flow velocity is just not yet
Together.It can be seen from Bernoulli equation, pressure head, velocity head and level head sum are constant.
The speed that fluid flows through is faster, and pressure P2 is less at curved surface runner, and the speed for flowing through is slower, pressure at curved surface runner
P2 is bigger.
Oily viscosity is high, and flowing velocity is slow, and pressure P2 when it flows through curved surface runner is big, and such valve element 2-3 is just by as far as possible
Lower valve body 2-2 side is pressed to more, so as to allow more oil to flow through；Water viscosity is low, and flowing velocity is fast, when it flows through in passage
Pressure P2 it is little, such valve element 2-3 is just pressed to as much as possible upper valve body 2-4 sides, so as to the aquiform stool for allowing to flow through can subtract
It is few；When the fluid for flowing through is gas, the viscosity of gas is lower, and faster, at this moment curved surface runner is intended to closure to flow velocity, and gas is just
Hardly pass through.When fluid is oil, the gentle mixture of water, valve element 2-3 just can constitute adjust automatically in lower valve according to it
The position in the space that the taper hole of body 2-2 and the curved hole of upper valve body 2-4 are constituted, so as to ensure that more oil streams enter production pipe
Line, water is gentle, less flows into.
When valve element 2-3 is contacted with lower valve body 2-2, i.e. valve element top-surface camber 2-3-2 institute's structures relative with the curved hole of upper valve body 2-4
Into curved surface runner it is maximum when, the flowing space that valve element lower flow channel 2-3-3 has should ensure that fluid is flowed completely through.
The above and accompanying drawing are limited only to illustrate and illustrate technical scheme, this
Invention scope is defined by claims.
Claims (3)
1. a kind of inflow control valve, it is characterised in that：It is made up of valve seat, lower valve body, valve element, upper valve body, valve seat is arranged on production
On pipeline, shoulder hole is provided with inside valve seat；Lower valve body is embedded in the shoulder hole of valve seat, and by boss axial location is limited, under
Valve inner is provided with taper hole；Circular hole is opened on upper valve body top, and bottom open surface hole, upper valve body is screwed in threadably valve seat
On；Valve element is placed within the space being made up of the taper hole of lower valve body and the curved hole of upper valve body.
2. a kind of inflow control valve according to claim 1, it is characterised in that：Valve element is by the conical surface, valve element under valve element
The entity that curved surface and valve element lower flow channel are constituted, valve element top-surface camber is relative with the curved hole of upper valve body to constitute curved surface runner；Valve element
The lower conical surface slope for constituting the conical surface under tapered runner, and valve element relative with the taper hole of lower valve body is greater than the oblique of the taper hole of valve body
Rate, valve element lower flow channel is the strip grooves for being distributed on conical surface lower end under valve element.
3. a kind of inflow control valve according to claim 1, it is characterised in that：The curved hole of valve element top-surface camber and upper valve body
During the curved surface runner maximum for being constituted relatively, the flowing space that valve element lower flow channel has should ensure that fluid is flowed completely through, stream
The volume sum for going out is more than the volume sum for flowing into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211821.0U CN206158669U (en) | 2016-11-10 | 2016-11-10 | Entry control valve flows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211821.0U CN206158669U (en) | 2016-11-10 | 2016-11-10 | Entry control valve flows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206158669U true CN206158669U (en) | 2017-05-10 |
Family
ID=58658323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621211821.0U Withdrawn - After Issue CN206158669U (en) | 2016-11-10 | 2016-11-10 | Entry control valve flows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206158669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401526A (en) * | 2016-11-10 | 2017-02-15 | 北京化工大学 | Flow-in control valve |
-
2016
- 2016-11-10 CN CN201621211821.0U patent/CN206158669U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401526A (en) * | 2016-11-10 | 2017-02-15 | 北京化工大学 | Flow-in control valve |
| CN106401526B (en) * | 2016-11-10 | 2019-05-07 | 北京化工大学 | A kind of inflow control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170510 Effective date of abandoning: 20190507 |
|
| AV01 | Patent right actively abandoned |