CN105221120B - Oil well flows into controller - Google Patents
Oil well flows into controller Download PDFInfo
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- CN105221120B CN105221120B CN201410252818.2A CN201410252818A CN105221120B CN 105221120 B CN105221120 B CN 105221120B CN 201410252818 A CN201410252818 A CN 201410252818A CN 105221120 B CN105221120 B CN 105221120B
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- flows
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- oil well
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- 239000003129 oil well Substances 0.000 title claims abstract description 38
- 239000012530 fluid Substances 0.000 claims abstract description 98
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 230000015572 biosynthetic process Effects 0.000 claims description 21
- 230000008676 import Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000001869 rapid Effects 0.000 description 1
Abstract
It includes tube body, fluid channel and outlet that the oil well of the present invention, which flows into controller,.Fluid channel includes at least two unhurried current channel units and at least two fluidic channel units, wherein, the gentle circulation road unit of fluidic channel unit is arranged alternately along the extending direction of fluid channel, and the circulation area of fluidic channel unit is less than the circulation area of unhurried current channel unit.When the kinetic energy of oil is converted into pressure energy, energy loss is less.And the kinetic energy of water, when being converted into pressure energy, energy loss is more.Therefore, the control outlet capacity that the oil well flows into controller can be effectively improved.
Description
Technical field
The present invention relates to a kind of oil wells to flow into controller.
Background technology
It usually requires to flow into the inflow velocity that controller controls formation fluid by oil well in oil extraction system, to meet life
Production needs.It is that helical duct type flows into controller, nozzle type flows into control that the more oil well of application, which flows into controller, in the prior art
Device processed and mixed type flow into controller.For example, helical duct type inflow controller is pre-designed by making formation fluid flow through
Helical duct or bending channel, frictional resistance effect under generate parasitic pressure drop, to control the flow velocity of formation fluid.But
Be, above-mentioned oil well flow into controller it is stronger to the control ability of water when, it is also relatively strong to the control ability of oil, cause its to control water effect
It is poor.
Therefore, how to solve the problems, such as that the control water effect of oil well inflow controller is poor, be those skilled in the art's needs
The technical issues of solution.
Invention content
In view of the above-mentioned problems, the present invention proposes a kind of oil well inflow controller, can effectively improve to formation fluid
In water control ability.
The oil well of the present invention flow into controller include tube body, the fluid channel that is arranged on the outside of the tube body, and make institute
State the outlet that fluid channel is connected to the inner space of the tube body.The fluid channel includes that at least two unhurried current channels are single
Member and at least two fluidic channel units, wherein the fluidic channel unit and the unhurried current channel unit are logical along the fluid
The extending direction in road is arranged alternately, and the circulation area of the fluidic channel unit is less than the circulation of the unhurried current channel unit
Area.
In one embodiment, the water in formation fluid forms turbulent jet in the fluid channel and oil forms laminar flow
Jet stream.
In one embodiment, along multiple fluid channels that are circumferentially with of the tube body, and each fluid channel edge
The tube body it is axially extending.
In one embodiment, it is arranged on the tube body for making formation fluid be flowed into from the import of the fluid channel
Pipe sleeve.
In one embodiment, the cross-sectional shape of each fluidic channel unit is circle, and cross-sectional diameter is 2mm-
4mm。
In one embodiment, the length of channel unit of flowing slowly is 9-12 times of aperture of fluidic channel unit.
In one embodiment, respectively the width of unhurried current channel unit is 15mm-35mm.
In one embodiment, the outlet is the through-hole through the tube body and a diameter of 8mm-10mm, and is located at
The outlet side of fluid channel.
In one embodiment, unhurried current channel unit is set in the entrance of each fluid channel, is arranged in exit
Fluidic channel unit.
In one embodiment, the Fluid Volume in incoming fluid channel is 85L/h-1600L/h.
In one embodiment, the viscosity of the oil stream in incoming fluid channel is 10cp-500cp.
In one embodiment, Reynolds number when water flows in fluidic channel unit is less than 18000 more than 2000, and
Reynolds number when oil flows in fluidic channel unit is less than 2000 more than 200.
In one embodiment, the pipe sleeve includes two collar portions being connected to each other, two of which collar portion
Free end is bonded on the outer surface of the tube body.
Compared with the existing technology, it includes tube body that oil well of the invention, which flows into controller,.It is logical equipped with fluid in the outside of tube body
Road is equipped with the outlet for making fluid channel be connected to the inner space of tube body on tube body.Wherein, fluid channel includes extremely
Few two unhurried current channel units and at least two fluidic channel units.Unhurried current channel unit and fluidic channel unit are along fluid channel
Extending direction interval setting.And the circulation area of fluidic channel unit is less than the fluid area of unhurried current channel unit.In this way,
When formation fluid flows into unhurried current channel unit from fluidic channel unit, the kinetic energy of formation fluid can be converted to pressure energy.When oil
When kinetic energy is converted into pressure energy, energy loss is less.And the kinetic energy of water, when being converted into pressure energy, energy loss is more.Therefore, ground
When layer fluid flows in fluid channel, the control ability that fluid channel compares the control ability of water oil is strong, so as to have
Improve the control outlet capacity that the oil well flows into controller in effect ground.
Description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.In figure：
Fig. 1 is that the oil well of the present invention flows into the structural schematic diagram of controller；
Fig. 2 is that the oil well of the present invention flows into the front view of controller；
Fig. 3 is that the oil well of the present invention flows into the explosive view of controller.
In the accompanying drawings, identical component uses identical reference numeral.Attached drawing is not according to actual scaling.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings.
It includes tube body 1 that oil well provided by the invention, which flows into controller,.The outside of tube body 1 is provided with fluid channel 2.Such as figure
Shown in 1 and Fig. 2, in one embodiment, which includes that at least two unhurried current channel units 21 and at least two circulate
The fluidic channel unit 22 of the circulation area of at least below 9 times or more unhurried current channel units 21 of area.And fluidic channel unit
22 gentle circulation road units 21 are arranged alternately along the extending direction of fluid channel 2.
Local laminar fluid flow forms turbulent jet through fluidic channel unit 22 when formation fluid is largely water, and local
When layer fluid is mainly oil, laminar jet is formed.According to the size for entering the flow to be controlled, along the 360 ° circumferential of tube body 1
1-6 fluid channel 2 can be laid, and the flow controlled is bigger, required fluid channel is more.In one embodiment, each
The Fluid Volume in hour incoming fluid channel is 85L-1600L.In this way, water can effectively be made to be formed in fluidic channel unit 22
Turbulent jet, and oil is made to form laminar jet in fluidic channel unit 22, so as to further increase the control energy to water
Power.
When water flows into unhurried current channel unit 21 from fluidic channel unit 22, due to turbulence pulsation, it is single to be located at unhurried current channel
The water entrainment that fluid in member 21 can be flowed out from fluidic channel unit 22, to make the jet stream width of water extend, and then makes water
Part kinetic energy be converted into pressure energy quickly in shorter range, and with larger capacity loss.When water is postponed circulation road
When unit 21 flows into fluidic channel unit 22, the pressure energy of water is converted into kinetic energy.Therefore, when water flowing in fluid channel 2,
The conversion between multiple kinetic energy and pressure energy can be passed through, and along with larger energy loss.In this way, can effectively improve pair
The resistance of water.
When oil flows into unhurried current channel unit 21 from fluidic channel unit 22, due to laminar jet, oily jet stream width is simultaneously
It will not extend rapidly, and be to maintain certain speed and width continuation flow forward, so that the kinetic energy of oil is being converted to pressure
Smaller energy is lost during power energy.When oil postpone circulation road unit 21 flow into fluidic channel unit 22 when, oil there are still
Larger speed, to make pressure energy be converted to kinetic energy during lose smaller energy.Therefore, oil is in fluid channel 2
When flowing, although the conversion between multiple kinetic energy and pressure energy can be passed through, lost when being converted between kinetic energy and pressure energy
Energy it is smaller.In this way, the resistance to oil can be effectively reduced.
In addition, in order to enable water and oil preferably out of fluidic channel unit 22 jet stream and go out, be arranged fluidic channel unit
When 22, it is circle to make the cross-sectional shape of fluidic channel unit 22.That is the section shape perpendicular with the flow direction of formation fluid
Shape is circle.
Further, according to the output condition of domestic oil well, the pore size of fluidic channel unit 22 can be set as 2mm-
4mm, to ensure that water can form turbulent jet after by fluidic channel unit 22, and oil is after by fluidic channel unit 22
Form laminar jet.Reynolds number of the water in fluidic channel unit 22 when flowing is less than 18000 more than 2000, with more preferable landform
At turbulent jet.And Reynolds number of the oil in fluidic channel unit 22 when flowing is less than 2000 more than 200, preferably to be formed
Laminar jet.In one embodiment, it can be analyzed as follows into the flow regime of the fluid of fluid channel：
In hydrodynamics, using Reynolds number as the foundation for differentiating pattern of flow, the fluidised form of fluid is divided into laminar flow and turbulent flow
Two kinds, the critical Reynolds number Re from laminar flow to Transitional And Turbulent Flow is about 2000.The calculation formula of Reynolds number：
Re=ρ vd/ μ,
Wherein, ρ is the density by fluid, and v is the movement velocity by fluid, and μ is the dynamic viscosity by fluid, d
To pass through the equivalent diameter in the channel of fluid.
Using above formula, it can calculate and analyze, when the viscosity of fluid is between 10cp-500cp, into single fluid channel
2 fluid flow is in 2~40m3When between/d, it is ensured that the oil stream into fluid channel 2 is laminar flow, and flow is turbulent flow.
The horizontal well yield of oil field at home single port is about 10~50m3Between/d, oily viscosity is mostly between 10cp-500cp.Therefore,
The production liquid situation of oil field at home can ensure that it is laminar flow to enter oil well to flow into the oil stream of controller substantially, and flow is rapids
Stream.When oily well yield is excessive, the multiple oil wells of tripping in can be used and flow into controller, to be lowered into single fluid channel 2
Fluid flow, laminar flow when reaching oil, the purpose of turbulent flow when crossing water.
In one embodiment, the specific size in the aperture of fluidic channel unit 22 can calculate according to the following formula：
In order to make water keep turbulent flow in fluidic channel unit 22, then the reynolds number Re of water should be greater than 2000.That is,
Re=4 ρwQ/(πdμw) ＞ 2000；
In order to make oil keep laminar flow in fluidic channel unit 22, then oily reynolds number Re should be less than 2000.That is,
Re=4 ρoQ/(πdμo) ＜ 2000；
To show that the aperture of fluidic channel unit 22 should be,
ρoQ/(500πμo) ＜ d ＜ ρwQ/(500πμw)。
Wherein, ρwFor the density of water, Q is the flow in the unit interval of formation fluid, and d is the hole of fluidic channel unit 22
Diameter, μwFor the viscosity of water, ρoFor the density of oil, μoFor the viscosity of oil.
As can be seen from the above equation, the size in the aperture of fluidic channel unit 22 is that the ground in controller is flowed by inflow oil well
The flow of layer fluid, what water, the viscosity of oil and density codetermined.It, can after the flow of formation fluid, viscosity and density determine
To determine the preferred aperture of fluidic channel unit 22.
Preferably, the extending direction of fluid channel 2 is consistent with the extending direction of tube body 1, and is set along the circumferential direction of tube body 1
Set multiple fluid channels 2.The Fluid Volume that oil well flows into controller is flowed into this way, can increase, can also effectively be increased to water
Control ability.
In one embodiment, fluid channel 2 is convexed to form by the setting in the outside of tube body 1.It is set in the outside of tube body 1
Have it is multiple in an axial direction and the protrusion of circumferentially staggered setting, form mesh shape.It is unhurried current by each rectangular grid that protrusion surrounds
Channel unit 21.Protrusion in the axial direction along tube body 1 between adjacent two unhurried current channel units 21 opens up through-hole, and formation is penetrated
Circulation road unit 22.So set, it is simple in structure, facilitate arrangement.Further, when fluidic channel unit 22 is set, make jet stream
The extending direction of channel unit 22 is also consistent with the axis direction of tube body 1, further to increase the control ability to water.
Preferably, unhurried current channel unit 21 is set in the entrance of each fluid channel 2, and in the exit of fluid channel 2
Fluidic channel unit 22 is set.In this way, easily layer fluid incoming fluid channel 2, and formation fluid can be increased and flow into pipe
The flow velocity of the inner space of body 1, to increase the Fluid Volume for flowing into oil well and flowing into controller.
In addition, if the length of unhurried current channel unit 21 is long (along the axial size of tube body 1), oil can be caused in jet stream
When generate diverging, to increase to oil throttle resistance.And the length for the channel unit 21 that flows slowly is too short, and water can be caused in jet stream
Diverging also not yet in effect just flows into next Jetstream fluid unit, to reduce the throttle resistance to water.Therefore, make unhurried current channel
The length of unit 21 is 15mm-25mm.That is, the length of unhurried current channel unit 21 is about the hole of fluidic channel unit 22
9-12 times of diameter.In addition, being arranged in this way, oil well easy to install and use flows into controller.
Further, the width of unhurried current channel unit 21 is 15mm-35mm (along the circumferential size of tube body 1).In this way, ground
Layer fluid circulation road unit 21 of postponing flows into fluidic channel unit 22, and while flow out from fluidic channel unit 22 can generate obviously
Jet stream, to further increase oil well flow into controller control outlet capacity.
It further includes pipe sleeve 3 that the oil well, which flows into controller,.Pipe sleeve 3 is set in the outside of tube body 1, for stopping formation fluid,
To prevent formation fluid from being flowed into from other positions of fluid channel 2.As shown in Figures 2 and 3, in one embodiment, pipe sleeve 3
It is divided into two collar portions.One end of one of collar portion is equipped with external screw thread, and the other end is equipped with and protrudes from its inner surface
Protrusion.One end of another collar portion is equipped with internal thread, and the other end is equipped with the protrusion and sealing ring for protruding from inner surface.When
When collar portion is set on tube body 1, the protrusion of two collar portions is abutted with the protrusion on tube body 1, to consolidate pipe sleeve 3
It is scheduled on tube body 1.And the outer surface palette of the sealing ring on collar portion and tube body 1 is set, to prevent stratum from flowing
Body is overflowed from the contact jaw of tube body 1 and pipe sleeve 3.So set, it is simple in structure, facilitate and pipe sleeve 3 is fixed on tube body 1.In addition,
When protrusion on collar portion is abutted with the protrusion on tube body 1, it should ensure that formation fluid can successfully be flowed from fluid channel 2
Enter to outlet 4.
The oil well fluid control further includes outlet 4.Outlet 4 be through tube body 1 through-hole, a diameter of 8-10mm,
And positioned at the outlet side of fluid channel 2.After formation fluid is flowed out from fluid channel 2, tube body 1 is flowed by outlet 4
Inner space in.In addition, being additionally provided with oil nozzle in outlet 4.In one embodiment, spiral shell is opened up in the surrounding of outlet 4
Line also opens up screw thread in the outer wall of oil nozzle, and oil nozzle is spun on by screw thread on tube body 1.In this way, before can be according to Oil Field completion
Reservoir electrical measurement result combination finishing drilling data and oil reservoir data oil nozzle is adjusted, to facilitate adjust flow into tube body 1 in
Formation fluid amount.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited in texts
Disclosed in specific embodiment, but include all technical solutions fallen within the scope of the appended claims.
Claims (11)
1. a kind of oil well flows into controller, including tube body, the fluid channel that is arranged on the outside of the tube body, and make the fluid
The outlet through the tube body that channel is connected to the inner space of the tube body；
The fluid channel includes at least two unhurried current channel units and at least two fluidic channel units, wherein the jet stream
Channel unit and the unhurried current channel unit are arranged alternately along the extending direction of the fluid channel, and the fluidic channel list
The circulation area of member is less than the circulation area of the unhurried current channel unit；
Each fluidic channel unit of the fluid channel is oppositely arranged；
Water in formation fluid forms turbulent jet in the fluid channel and oil forms laminar jet；
Wherein, the Fluid Volume that each hour flows into the fluid channel is 85L-1600L；
The length of the unhurried current channel unit is 15mm-25mm.
2. oil well according to claim 1 flows into controller, which is characterized in that be circumferentially with multiple streams along the tube body
Body channel, and each fluid channel is along the axially extending of the tube body.
3. oil well according to claim 1 or 2 flows into controller, which is characterized in that be arranged on the tube body for making
The pipe sleeve that formation fluid is flowed into from the import of the fluid channel.
4. oil well according to claim 1 or 2 flows into controller, which is characterized in that the cross section of each fluidic channel unit
Shape is circle, and cross-sectional diameter is 2mm-4mm.
5. oil well according to claim 1 or 2 flows into controller, which is characterized in that the length for the channel unit that flows slowly is to penetrate
9-12 times of the aperture of circulation road unit.
6. oil well according to claim 1 or 2 flows into controller, which is characterized in that respectively the width of unhurried current channel unit is
15mm-35mm。
7. oil well according to claim 1 or 2 flows into controller, which is characterized in that the outlet diameter is 8mm-
The through-hole of 10mm, and positioned at the outlet side of fluid channel.
8. oil well according to claim 1 or 2 flows into controller, which is characterized in that in the import of each fluid channel
Fluidic channel unit is arranged in exit in setting unhurried current channel unit in place's.
9. oil well according to claim 1 or 2 flows into controller, which is characterized in that oil in incoming fluid channel it is viscous
Degree is 10cp-500cp.
10. oil well according to claim 1 or 2 flows into controller, which is characterized in that water flows in fluidic channel unit
When Reynolds number more than 2000 and be less than 18000, and oil in fluidic channel unit flow when Reynolds number be less than more than 200
2000。
11. oil well according to claim 3 flows into controller, which is characterized in that the pipe sleeve is connected to each other including two
Collar portion, the free end of two of which collar portion is bonded on the outer surface of the tube body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410252818.2A CN105221120B (en) | 2014-06-09 | 2014-06-09 | Oil well flows into controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410252818.2A CN105221120B (en) | 2014-06-09 | 2014-06-09 | Oil well flows into controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105221120A CN105221120A (en) | 2016-01-06 |
| CN105221120B true CN105221120B (en) | 2018-08-21 |
Family
ID=54990344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410252818.2A Active CN105221120B (en) | 2014-06-09 | 2014-06-09 | Oil well flows into controller |
Country Status (1)
| Country | Link |
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| CN (1) | CN105221120B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2158359C2 (en) * | 1997-03-04 | 2000-10-27 | Аминев Марат Хуснуллович | Wellhead pressure controller |
| RU2008110087A (en) * | 2005-08-15 | 2009-09-27 | Веллдайнэмикс, Инк. (Us) | REGULATION OF A FLUID FLOW IN A WELL BY A MODULATION OF A PULSE DURATION |
| GB201004787D0 (en) * | 2007-10-12 | 2010-05-05 | Baker Hughes Inc | Flow restriction device |
| CN202325448U (en) * | 2011-11-09 | 2012-07-11 | 王长波 | Multifunctional flow controller |
| CN102667056A (en) * | 2009-12-22 | 2012-09-12 | 贝克休斯公司 | Downhole-adjustable flow control device for controlling flow of a fluid into a wellbore |
| CN102753784A (en) * | 2010-02-04 | 2012-10-24 | 哈利伯顿能源服务公司 | Method and apparatus for autonomous downhole fluid selection with pathway dependent resistance system |
| CN204098880U (en) * | 2014-06-09 | 2015-01-14 | 中国石油化工股份有限公司 | Oil well ramp metering device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050199298A1 (en) * | 2004-03-10 | 2005-09-15 | Fisher Controls International, Llc | Contiguously formed valve cage with a multidirectional fluid path |
| US7409999B2 (en) * | 2004-07-30 | 2008-08-12 | Baker Hughes Incorporated | Downhole inflow control device with shut-off feature |
-
2014
- 2014-06-09 CN CN201410252818.2A patent/CN105221120B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2158359C2 (en) * | 1997-03-04 | 2000-10-27 | Аминев Марат Хуснуллович | Wellhead pressure controller |
| RU2008110087A (en) * | 2005-08-15 | 2009-09-27 | Веллдайнэмикс, Инк. (Us) | REGULATION OF A FLUID FLOW IN A WELL BY A MODULATION OF A PULSE DURATION |
| GB201004787D0 (en) * | 2007-10-12 | 2010-05-05 | Baker Hughes Inc | Flow restriction device |
| CN102667056A (en) * | 2009-12-22 | 2012-09-12 | 贝克休斯公司 | Downhole-adjustable flow control device for controlling flow of a fluid into a wellbore |
| CN102753784A (en) * | 2010-02-04 | 2012-10-24 | 哈利伯顿能源服务公司 | Method and apparatus for autonomous downhole fluid selection with pathway dependent resistance system |
| CN202325448U (en) * | 2011-11-09 | 2012-07-11 | 王长波 | Multifunctional flow controller |
| CN204098880U (en) * | 2014-06-09 | 2015-01-14 | 中国石油化工股份有限公司 | Oil well ramp metering device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105221120A (en) | 2016-01-06 |
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