WO2008004875A1 - Method for flow control and autonomous valve or flow control device - Google Patents
Method for flow control and autonomous valve or flow control device Download PDFInfo
- Publication number
- WO2008004875A1 WO2008004875A1 PCT/NO2007/000204 NO2007000204W WO2008004875A1 WO 2008004875 A1 WO2008004875 A1 WO 2008004875A1 NO 2007000204 W NO2007000204 W NO 2007000204W WO 2008004875 A1 WO2008004875 A1 WO 2008004875A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disc
- flow
- control device
- fluid
- oil
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 claims abstract description 24
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/32—Preventing gas- or water-coning phenomena, i.e. the formation of a conical column of gas or water around wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
- F16K15/023—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0146—Control of flow without auxiliary power the in-line sensing element being a piston or float without flexible member or spring
Definitions
- the present invention relates to method for self-adjusting (autonomously adjusting) the flow of a fluid through a valve or flow control device, and a self adjusting valve or flow control device, in particular useful in a production pipe for producing oil and/or gas from a well in an oil and/or gas reservoir, which production pipe includes a lower drainage pipe preferably being divided into at least two sections each including one or more inflow control devices which communicates the geological production formation with the flow space of the drainage pipe.
- WO-A-9208875 describes a horizontal production pipe comprising a plurality of production sections connected by mixing chambers having a larger internal diameter than the production sections.
- the production sections comprise an external slotted liner which can be considered as performing a filtering action.
- the sequence of sections of different diameter creates flow turbulence and prevent the running of work- over tools.
- an inflow control device which is self adjusting or autonomous and can easily be fitted in the wall of a production pipe and which therefore provide for the use of work-over tools.
- the device is designed to "distinguish" between the oil and/or gas and/or water and is able to control the flow or inflow of oil or gas, depending on which of these fluids such flow control is required.
- the device is robust, can withstand large forces and high temperatures, prevents draw dawns (differential pressure) needs no energy supply, can withstand sand production, is reliable, but is still simple and very cheap.
- the method according to invention is characterized in that the fluid flows through an inlet or aperture thereby forming a flow path through the control device passing by a movable disc or body which is designed to move freely relative to the opening of the inlet and thereby reduce or increase the flow-through area by exploiting the Bernoulli effect and any stagnation pressure created over the disc, whereby the control device, depending on the composition of the fluid and its properties, autonomously adjusts the flow of the fluid based on a pre-estimated flow design, as defined in the characterizing portion of claim 1.
- the self-adjusting valve or control device of the invention is characterized in that the control device is a separate or integral part of the fluid flow control arrangement, including a disc or freely movable controlling body being provided in a recess of the pipe wall or being provided in a separate housing body in the wall, the disc or controlling body facing the outlet of an aperture or hole in the centre of the recess or housing body and being held in place in the recess or housing body by means of a holder device or arrangement, thereby forming a flow path where the fluid enters the control device through the central aperture or inlet flowing towards and along the disc or body and out of the recess or housing, as defined in the characterizing portion of the independent claim 4.
- Fig. 1 shows a schematic view of a production pipe with a control device according to the present invention
- Fig. 2 a shows, in larger scale, a cross section of the control device according to the invention, b) shows the same device in a top view.
- Fig. 3 is a diagram showing the flow volume through a control device according to the invention vs. the differential pressure in comparison with a fixed inflow device
- Fig. 4 shows the device shown in Fig. 2, but with the indication of different pressure zones influencing the design of the device for different applications.
- Fig. 5 shows a principal sketch of another embodiment of the control device according to the invention.
- Fig. 6 shows a principal sketch of a third embodiment of the control device according to the invention
- Fig. 7 shows a principal sketch of a fourth embodiment of the control device according to the invention.
- Fig. 8 shows a principal sketch of a fifth embodiment of the invention where the control device is an integral part of a flow arrangement.
- Fig. 1 shows, as stated above, a section of a production pipe 1 in which a prototype of a control device 2 according to the invention is provided.
- the control device 2 is preferably of circular, relatively flat shape and may be provided with external threads 3 (see Fig. 2) to be screwed into a circular hole with corresponding internal threads in the pipe.
- the device 2 may be adapted to the thickness of the pipe and fit within its outer and inner periphery.
- Fig. 2 a) and b) shows the control device 2 in larger scale.
- the device consists of first disc-shaped housing body 4 with an outer cylindrical segment 5 and inner cylindrical segment 6 and with a central hole or aperture 10, and a second disc-shaped holder body 7 with an outer cylindrical segment 8, as well as a preferably flat disc or freely movable body 9 provided in an open space 14 formed between the first 4 and second 7 disc-shaped housing and holder bodies.
- the body 9 may for particular applications and adjustments depart from the flat shape and have a partly conical or semicircular shape (for instance towards the aperture 10.)
- the cylindrical segment 8 of the second disc-shaped holder body 7 fits within and protrudes in the opposite direction of the outer cylindrical segment 5 of the first disc-shaped housing body 4 thereby forming a flow path as shown by the arrows 11, where the fluid enters the control device through the central hole or aperture (inlet) 10 and flows towards and radially along the disc 9 before flowing through the annular opening 12 formed between the cylindrical segments 8 and 6 and further out through the annular opening 13 formed between the cylindrical segments 8 and 5.
- the two disc-shaped housing and holder bodies 4, 7 are attached to one another by a screw connection, welding or other means (not further shown in the figures) at a connection area 15 as shown in Fig 2b).
- the present invention exploits the effect of Bernoulli teaching that the sum of static pressure, dynamic pressure and friction is constant along a flow line:
- the pressure difference over the disc 9 can be expressed as follows:
- K is mainly a function of the geometry and less dependent on the Reynolds number.
- the flow area will decrease when the differential pressure increases, such that the volume flow through the control device will not, or nearly not, increase when the pressure drop increases.
- Fig. 3 A comparison between a control device according to the present invention with movable disc and a control device with fixed flow-through opening is shown in Fig. 3, and as can be seen from the figure, the flow-through volume for the present invention is constant above a given differential pressure.
- the control device according to the invention may have two different applications: Using it as inflow control device to reduce inflow of water, or using it to reduce inflow of gas at gas break through situations.
- the different areas and pressure zones as shown in Fig. 4, will have impact on the efficiency and flow through properties of the device. Referring to Fig. 4, the different area/pressure zones may be divided into:
- - A 1 , P 1 is the inflow area and pressure respectively.
- the force (PrA 1 ) generated by this prssure will strive to open the control device (move the disc 9 upwards).
- - A 2 , P 2 is the area and pressure in the zone where the velocity will be largest and hence represents a dynamic pressure source. The resulting force of the dynamic pressure will strive to close the control device (move the disc downwards as the flow velocity increases).
- P 3 is the area and pressure at the outlet. This should be the same as the well pressure (inlet pressure).
- a 4i P 4 is the area and pressure (stagnation pressure) behind the disc.
- the stagnation pressure at position 16 (Fig. 2), creates the pressure and the force behind the disc. This will strive to close the control device (move the disc downwards). Fluids with different viscosities will provide different forces in each zone depending on the design of these zones.
- the design of the areas will be different for different applications, e.g. gas/oil or oil/water flow. Hence, for each application the areas needs to be carefully balanced and optimally designed taking into account the properties and physical conditions (viscosity, temperature, pressure etc.) for each design situation.
- Fig. 5 shows a principal sketch of another embodiment of the control device according to the invention, which is of a more simple design than the version shown in Fig. 2.
- the control device 2 consists, as with the version shown in Fig. 2, of a first disc-shaped housing body 4 with an outer cylindrical segment 5 and with a central hole or aperture 10, and a second disc-shaped holder body 17 attached to the segment 5 of the housing body 4, as well as a preferably flat disc 9 provided in an open space 14 formed between the first and second disc-shaped housing and holder bodies 4, 17.
- Fig. 6 shows a third embodiment according to the invention where the design is the same as with the example shown in Fig. 2, but where a spring element 18, in the form of a spiral or other suitable spring device, is provided on either side of the disc and connects the disc with the holder (J, 22), recess (21 ) or housing (4).
- the spring element 18 is used to balance and control the inflow area between the disc 9 and the inlet 10, or rather the surrounding edge or seat 19 of the inlet 10.
- the opening between the disc 9 and edge 19 will be larger or smaller, and with a suitable selected spring constant, depending on the inflow and pressure conditions at the selected place where the control device is provided, constant mass flow through the device may be obtained.
- Fig. 7 shows a fourth embodiment of the invention, where the design is the same as with the example in Fig. 6 above, but where the disc 9 is, on the side facing the inlet opening 10, provided with a thermally responsive device such as bi-metallic element 20.
- a thermally responsive device such as bi-metallic element 20.
- the conditions may rapidly change from a situation where only or mostly oil is produced to a situation where only or mostly gas is produced (gas breakt-hrough or gas coning). With for instance a pressure drop of 16 bar from 100 bar the temperature drop would correspond to approximately 20 0 C.
- the disc 9 will bend upwards or be moved upwards by the element 20 abutting the holder shaped body 7 and thereby narrowing the opening between the disc and the inlet 10 or fully closing said inlet.
- control device as shown in Figs. 1 and 2 and 4 - 7 are all related to solutions where the control device as such is a separate unit or device to be provided in conjunction with a fluid flow situation or arrangement such as the wall of a production pipe in connection with the production of oil and gas.
- the control device may, as shown in Fig. 8, be an integral part of the fluid flow arrangement, whereby the disc 9 may be provided in a recess 21 facing the outlet of an aperture or hole 10 of for instance a wall of a pipe 1 as shown in Fig. 1 in stead of being provided in a separate housing body 4.
- the disc may be held in place in the recess by means of a holder device such as inwardly protruding spikes, a circular ring 22 or the like being connected to the outer opening of the recess by means of screwing, welding or the like.
- a holder device such as inwardly protruding spikes, a circular ring 22 or the like being connected to the outer opening of the recess by means of screwing, welding or the like.
- the present invention as defined in the claims is not restricted to the application related to inflow of oil and/or gas from a well as described above or when injecting gas (natural gas, air or CO 2 ), steam or water into an oil and/or gas producing well.
- gas natural gas, air or CO 2
- the invention may be used in any processes or process related application where the flow of fluids with different gas and/or liquid compositions need to be controlled.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Pipe Accessories (AREA)
- Flow Control (AREA)
- Control Of Fluid Pressure (AREA)
- Cultivation Of Plants (AREA)
- Pipeline Systems (AREA)
- Accessories For Mixers (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Fats And Perfumes (AREA)
Abstract
Description
Claims
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/084,479 US8875797B2 (en) | 2006-07-07 | 2007-06-13 | Method for flow control and autonomous valve or flow control device |
CA2657209A CA2657209C (en) | 2006-07-07 | 2007-06-13 | Method for flow control and autonomous valve or flow control device |
MX2009000130A MX2009000130A (en) | 2006-07-07 | 2007-06-13 | Method for flow control and autonomous valve or flow control device. |
NO20110850A NO345916B1 (en) | 2006-07-07 | 2007-06-13 | Method for self-adjusting a fluid flow, self-adjusting flow control device and use thereof |
EA200900161A EA013497B1 (en) | 2006-07-07 | 2007-06-13 | Method for flow control and autonomous valve or flow control device |
EP07768930.5A EP2049766B1 (en) | 2006-07-07 | 2007-06-13 | Method for flow control and autonomous valve or flow control device |
AU2007270180A AU2007270180B2 (en) | 2006-07-07 | 2007-06-13 | Flow control device and method |
BRPI0714025-8A BRPI0714025B1 (en) | 2006-07-07 | 2007-06-13 | METHOD FOR AUTOMATICALLY ADJUSTING THE FLOW OF A FLUID THROUGH VALVE OR FLOW CONTROL DEVICE AND SELF ADJUSTABLE VALVE (AUTOMATIC) OR FLOW CONTROL DEVICE |
NZ574261A NZ574261A (en) | 2006-07-07 | 2007-06-13 | Flow control device that controls fluid flow using disc or body moved by Bernoulli effect |
CN2007800258685A CN101490360B (en) | 2006-07-07 | 2007-06-13 | Method for flow control and autonomous valve or flow control device |
AP2009004756A AP2536A (en) | 2006-07-07 | 2007-06-13 | Method for flow control and autonomous valve of flow control device |
NO20082074A NO331004B1 (en) | 2006-07-07 | 2008-05-02 | Flow control method and self-regulating valve or flow control device |
TN2009000001A TN2009000001A1 (en) | 2006-07-07 | 2009-01-05 | Method for flow control and autonomous valve or flow control device |
EC2009009075A ECSP099075A (en) | 2006-07-07 | 2009-01-16 | METHOD FOR FLOW CONTROL AND AUTONOMOUS VALVE OR DEVICE FOR FLOW CONTROL |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20063181 | 2006-07-07 | ||
NO20063181 | 2006-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008004875A1 true WO2008004875A1 (en) | 2008-01-10 |
Family
ID=38894772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO2007/000204 WO2008004875A1 (en) | 2006-07-07 | 2007-06-13 | Method for flow control and autonomous valve or flow control device |
Country Status (18)
Country | Link |
---|---|
US (1) | US8875797B2 (en) |
EP (1) | EP2049766B1 (en) |
CN (1) | CN101490360B (en) |
AP (1) | AP2536A (en) |
AU (1) | AU2007270180B2 (en) |
BR (1) | BRPI0714025B1 (en) |
CA (1) | CA2657209C (en) |
EA (1) | EA013497B1 (en) |
EC (1) | ECSP099075A (en) |
MX (1) | MX2009000130A (en) |
MY (1) | MY163991A (en) |
NO (2) | NO345916B1 (en) |
NZ (1) | NZ574261A (en) |
SA (1) | SA07280365B1 (en) |
TN (1) | TN2009000001A1 (en) |
UA (1) | UA94109C2 (en) |
WO (1) | WO2008004875A1 (en) |
ZA (1) | ZA200900844B (en) |
Cited By (34)
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WO2008143522A1 (en) * | 2007-05-23 | 2008-11-27 | Ior Technology As | Gas valve and production tubing with a gas valve |
NO20081360A (en) * | 2008-03-14 | 2009-06-02 | Statoil Asa | Device for attaching a valve to a tubular element |
NO20081078L (en) * | 2008-02-29 | 2009-08-31 | Statoilhydro Asa | Pipe element with self-regulating valves for controlling the flow of fluid into or out of the pipe element |
WO2009113870A2 (en) * | 2008-03-12 | 2009-09-17 | Statoilhydro Asa | System and method for controlling the flow of fluid in branched wells |
WO2009123472A2 (en) * | 2008-04-03 | 2009-10-08 | Statoilhydro Asa | System and method for recompletion of old wells |
WO2009136796A1 (en) * | 2008-05-07 | 2009-11-12 | Aadnoey Bernt Sigve | Flow controller device |
WO2010059062A1 (en) * | 2008-11-18 | 2010-05-27 | Statoil Asa | A method and apparatus for controlling the flow of fluid in oil and/or gas production |
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US10208547B2 (en) | 2013-03-21 | 2019-02-19 | Statoil Petroleum As | Increasing hydrocarbon recovery from reservoirs |
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EP3765707B1 (en) | 2018-03-12 | 2023-04-12 | Inflowcontrol AS | A flow control device and method |
EP4215718A1 (en) | 2018-03-12 | 2023-07-26 | Inflowcontrol AS | A flow control device and method |
CN111101908A (en) * | 2020-01-07 | 2020-05-05 | 中国海洋石油集团有限公司 | Automatic inflow control device and tubular column |
WO2022106156A1 (en) | 2020-11-17 | 2022-05-27 | Inflowcontrol As | A flow control device and method |
Also Published As
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NZ574261A (en) | 2012-03-30 |
EP2049766A4 (en) | 2010-07-28 |
NO331004B1 (en) | 2011-09-05 |
AU2007270180B2 (en) | 2012-03-15 |
CN101490360B (en) | 2013-01-30 |
EP2049766A1 (en) | 2009-04-22 |
SA07280365B1 (en) | 2012-05-16 |
AP2536A (en) | 2012-12-19 |
US20090218103A1 (en) | 2009-09-03 |
NO20110850A1 (en) | 2008-06-12 |
NO20082074L (en) | 2008-06-12 |
EA013497B1 (en) | 2010-04-30 |
CA2657209C (en) | 2013-12-17 |
NO345916B1 (en) | 2021-10-18 |
TN2009000001A1 (en) | 2010-08-19 |
CN101490360A (en) | 2009-07-22 |
BRPI0714025B1 (en) | 2017-12-05 |
MY163991A (en) | 2017-11-15 |
EP2049766B1 (en) | 2023-03-29 |
US8875797B2 (en) | 2014-11-04 |
AP2009004756A0 (en) | 2009-02-28 |
ZA200900844B (en) | 2009-12-30 |
CA2657209A1 (en) | 2008-01-10 |
MX2009000130A (en) | 2009-06-11 |
ECSP099075A (en) | 2009-02-27 |
AU2007270180A1 (en) | 2008-01-10 |
UA94109C2 (en) | 2011-04-11 |
BRPI0714025A2 (en) | 2012-12-18 |
EA200900161A1 (en) | 2009-06-30 |
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