EP1279795A1 - Lufthebeventil mit variabler Öffnung für hohen Durchsatz, ausgerüstet mit einer auswechselbaren Energiequelle sowie Anwendungsverfahren - Google Patents

Lufthebeventil mit variabler Öffnung für hohen Durchsatz, ausgerüstet mit einer auswechselbaren Energiequelle sowie Anwendungsverfahren Download PDF

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Publication number
EP1279795A1
EP1279795A1 EP02079411A EP02079411A EP1279795A1 EP 1279795 A1 EP1279795 A1 EP 1279795A1 EP 02079411 A EP02079411 A EP 02079411A EP 02079411 A EP02079411 A EP 02079411A EP 1279795 A1 EP1279795 A1 EP 1279795A1
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EP
European Patent Office
Prior art keywords
valve
gas lift
variable orifice
lift valve
hydraulic
Prior art date
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.)
Granted
Application number
EP02079411A
Other languages
English (en)
French (fr)
Other versions
EP1279795B1 (de
Inventor
Ronald E. Pringle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger Technology Corp
Original Assignee
Camco International Inc
Schlumberger Technology Corp
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Camco International Inc, Schlumberger Technology Corp filed Critical Camco International Inc
Priority claimed from EP97936508A external-priority patent/EP0918918B1/de
Publication of EP1279795A1 publication Critical patent/EP1279795A1/de
Application granted granted Critical
Publication of EP1279795B1 publication Critical patent/EP1279795B1/de
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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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/066—Valve arrangements for boreholes or wells in wells electrically actuated
    • 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
    • E21B43/121—Lifting well fluids
    • E21B43/122—Gas lift
    • E21B43/123—Gas lift valves

Definitions

  • the present invention relates to subsurface well completion equipment and, more particularly, to an apparatus for lifting hydrocarbons from subterranean formations with gas at high production rates. Additionally, embodiments of independent and detachable actuators are disclosed.
  • the present invention is a gas lift valve for use in a subterranean well, comprising: a valve body with a longitudinal bore therethrough for sealable insertion in a mandrel; a variable orifice valve in the body for controlling fluid flow into the body; and, an actuating means connected to the variable orifice valve.
  • the actuating means may further include at least one pressure transducer communicating with the hydraulic circuitry, and transmitting collected data to the control panel.
  • the actuating means may further include a mechanical position holder.
  • the actuating means may be selectively installed and retrievably detached from the gas lift valve.
  • the present invention may be a method of using a gas lift valve in a subterranean well, comprising: installing a first mandrel and a second mandrel in a well production string that are in operational communication; retrievably installing a variable orifice gas lift valve in a first mandrel; installing a controllable actuating means in a second mandrel; and, controlling the variable orifice gas lift valve by surface manipulation of a control panel that communicates with the actuating means.
  • the method of installing the variable orifice gas lift valve and the actuating means may be by wireline intervention.
  • the method of installing the variable orifice gas lift valve and the actuating means may be by coiled tubing intervention.
  • the present invention may be a gas lift valve for variably introducing injection gas into a subterranean well, comprising: a valve body with a longitudinal bore therethrough for sealable insertion in a mandrel; a variable orifice valve in the body for controlling flow of injection gas into the body; and, a moveable hydraulic piston connected to the variable orifice valve and in communication with a source of pressurized fluid; whereby the amount of injection gas introduced into the well through the variable orifice valve is controlled by varying the amount of pressurized fluid being applied to the moveable hydraulic piston.
  • the source of pressurized fluid may be external to the gas lift valve and may be transmitted to the gas lift valve through a control line connected between the gas lift valve and the external source of pressurized fluid.
  • the external source of pressurized fluid may be located at the earth's surface.
  • the source of pressurized fluid may be an on-board hydraulic system including: a hydraulic pump located in a downhole housing and in fluid communication with a fluid reservoir; an electric motor connected to and driving the hydraulic pump upon receipt of a signal from a control panel; and, hydraulic circuitry in fluid communication with the hydraulic pump and the hydraulic piston.
  • the gas lift valve may further include an electrical conduit connecting the control panel to the gas lift valve for providing a signal to the electric motor.
  • the hydraulic system may further include a solenoid valve located in the downhole housing and connected to the electrical conduit, the solenoid valve directing the pressurized fluid from the hydraulic system through the hydraulic circuitry to the hydraulic piston.
  • the gas lift valve may further include at least one pressure transducer in fluid communication with the hydraulic circuitry and connected to the electrical conduit for providing a pressure reading to the control panel.
  • variable orifice valve may be stopped at intermediate positions between a full open and a full closed position to adjust the flow of injection gas therethrough, the variable orifice valve being held in the intermediate positions by the position holder.
  • the hydraulic system may further include a movable volume compensator piston for displacing a volume of fluid that is utilized as the hydraulic system operates.
  • the variable orifice valve may further include a carbide stem and seat.
  • the mandrel may be provided with at least one injection gas port through which injection gas flows when the variable orifice valve is open.
  • the gas lift valve may further include an upper and lower one-way check valve located on opposite sides of the variable orifice valve to prevent any fluid flow from the well into the gas lift valve.
  • the gas lift valve may further include latch means for adapting the variable orifice valve to be remotely deployed and retrieved.
  • the variable orifice valve may be remotely deployed and retrieved by utilization of coiled tubing.
  • the variable orifice valve may be remotely deployed and retrieved by utilization of wireline.
  • the gas lift valve may further include a valve connection collet.
  • the present invention may be a gas lift valve for variably introducing injection gas into a subterranean well, comprising: a valve body with a longitudinal bore therethrough for sealable insertion in a mandrel; a hydraulic control line connected to the gas lift valve for providing a supply of pressurized fluid thereto; a variable orifice valve in the body for controlling flow of injection gas into the body; a spring biasing the variable orifice valve in a full closed position; a moveable hydraulic piston connected to the variable orifice valve; and, an actuating piston located in a downhole housing, connected to the moveable hydraulic piston and in communication with the control line; whereby the amount of injection gas introduced into the well through the variable orifice valve is controlled by varying the amount of pressurized fluid being applied to the actuating piston.
  • control line may be connected to a source of pressurized fluid located at the earth's surface.
  • gas lift valve may further include a mechanical position holder to mechanically assure that the variable orifice valve remains in its desired position if conditions in the gas lift valve change during use.
  • variable orifice valve may be stopped at intermediate positions between a full open and a full closed position to adjust the flow of injection gas therethrough, the variable orifice valve being held in the intermediate positions by the position holder.
  • variable orifice valve may further include a carbide stem and seat.
  • the mandrel may be provided with at least one injection gas port through which injection gas flows when the variable orifice valve is open.
  • the gas lift valve may further include an upper and lower one-way check valve located on opposite sides of the variable orifice valve to prevent any fluid flow from the well into the gas lift valve.
  • the gas lift valve may further include latch means for adapting the variable orifice valve to be remotely deployed and retrieved.
  • the variable orifice valve may be remotely deployed and retrieved by utilization of coiled tubing.
  • the variable orifice valve may be remotely deployed and retrieved by utilization of wireline.
  • the gas lift valve may further include a valve connection collet.
  • the present invention may be a gas lift valve for variably introducing injection gas into a subterranean well, comprising: a valve body with a longitudinal bore therethrough for sealable insertion in a mandrel; a valve-open and a valve-closed hydraulic control line connected to the gas lift valve for providing dual supplies of pressurized fluid thereto; a variable orifice valve in the body for controlling flow of injection gas into the body; and, a moveable hydraulic piston connected to the variable orifice valve and in fluid communication with the valve-open and valve-closed hydraulic control lines; whereby the variable orifice valve is opened by applying pressure to the hydraulic piston through the valve-open control line and bleeding off pressure from the valve-closed control line; the variable orifice valve is closed by applying pressure to the hydraulic piston through the valve-closed control line and bleeding off pressure from the valve-open control line; and, the amount of injection gas introduced into the well through the variable orifice valve is controlled by varying the amount of pressurized fluid being applied to and bled off
  • control lines may be connected to a source of pressurized fluid located at the earth's surface.
  • gas lift valve may further include a mechanical position holder to mechanically assure that the variable orifice valve remains in its desired position if conditions in the gas lift valve change during use.
  • variable orifice valve may be stopped at intermediate positions between a full open and a full closed position to adjust the flow of injection gas therethrough, the variable orifice valve being held in the intermediate positions by the position holder.
  • the variable orifice valve may further include a carbide stem and seat.
  • the mandrel may be provided with at least one injection gas port through which injection gas flows when the variable orifice valve is open.
  • the gas lift valve may further include an upper and lower one-way check valve located on opposite sides of the variable orifice valve to prevent any fluid flow from the well into the gas lift valve.
  • the gas lift valve may further include latch means for adapting the variable orifice valve to be remotely deployed and retrieved.
  • the variable orifice valve may be remotely deployed and retrieved by utilization of coiled tubing.
  • variable orifice valve may be remotely deployed and retrieved by utilization of wireline.
  • the gas lift valve may further including a valve connection collet.
  • the gas lift valve may further include a fluid displacement port for use during the bleeding off of pressurized fluid from the hydraulic piston.
  • the gas lift valve may further include a valve-open and a valve-closed conduit for routing pressurized fluid from the valve-open and valve-closed control lines to the hydraulic piston.
  • the gas lift valve may further include an electrical conduit connecting a control panel at the earth's surface to the gas lift valve for communicating collected data to the control panel.
  • the gas lift valve may further include a valve-open pressure transducer and to a valve-closed pressure transducer, the valve-open pressure transducer being connected to the electrical conduit and in fluid communication wit the valve-open conduit, the valve-closed pressure transducer being connected to the electrical conduit and in fluid communication with the valve-closed conduit, the pressure transducers providing pressure readings to the control panel via the electrical conduit.
  • the gas lift valve may further include an upstream pressure transducer connected to the electrical conduit and a downstream pressure transducer connected to the electrical conduit, the upstream and downstream pressure transducers being located within the gas lift valve to measure a pressure drop across the variable orifice valve, the pressure drop measurement being reported to the control panel through the electrical conduit.
  • the present invention may be a gas lift valve for variably introducing injection gas into a subterranean well, comprising: a valve body with a longitudinal bore therethrough for sealable insertion in a mandrel; a hydraulic control line connected to the gas lift valve for providing a supply of pressurized fluid thereto; a variable orifice valve in the body for controlling flow of injection gas into the body; a nitrogen coil chamber providing a pressurized nitrogen charge through a pneumatic conduit for biasing the variable orifice valve in a full closed position; and, a moveable hydraulic piston connected to the variable orifice valve and in fluid communication with the hydraulic control line and the pneumatic conduit; whereby the variable orifice valve is opened by applying hydraulic pressure to the hydraulic piston through the hydraulic control line to overcome the pneumatic pressure in the pneumatic conduit; the variable orifice valve is closed by bleeding off pressure from the hydraulic control line to enable the pneumatic pressure in the nitrogen coil chamber to closed the variable orifice valve; and, the amount of injection gas introduced into the well through the variable or
  • the hydraulic control line may be connected to a source of pressurized fluid located at the earth's surface.
  • the gas lift valve may further include a mechanical position holder to mechanically assure that the variable orifice valve remains in its desired position if conditions in the gas lift valve change during use.
  • the variable orifice valve may be stopped at intermediate positions between a full open and a full closed position to adjust the flow of injection gas therethrough, the variable orifice valve being held in the intermediate positions by the position holder.
  • the variable orifice valve may further include a carbide stem and seat.
  • the mandrel may be provided with at least one injection gas port through which injection gas flows when the variable orifice valve is open.
  • the gas lift valve may further include an upper and lower one-way check valve located on opposite sides of the variable orifice valve to prevent any fluid flow from the well into the gas lift valve.
  • the gas lift valve may further include latch means for adapting the variable orifice valve to be remotely deployed and retrieved.
  • the variable orifice valve may be remotely deployed and retrieved by utilization of coiled tubing.
  • the variable orifice valve may be remotely deployed and retrieved by utilization of wireline.
  • the gas lift valve may further include a valve connection collet.
  • the present invention may be a gas lift valve for variably introducing injection gas into a subterranean well, comprising: a first mandrel connected to a second mandrel, the first and second mandrel being installed in a well production string; a valve means having a variable orifice for controlling flow of injection gas into the well, the valve means being installed in the first mandrel; an actuating means for controlling the valve means, the actuating means being installed in the second mandrel, in communication with and controllable from a control panel, and connected to the valve means by a first and second hydraulic control line.
  • valve means and the actuating means may be remotely deployed within and retrieved from their respective mandrels.
  • valve means and actuating means may be remotely deployed and retrieved by utilization of coiled tubing.
  • valve means and actuating means may be remotely deployed and retrieved by utilization of wireline.
  • the terms “upper” and “lower,” “up hole” and “downhole,” and “upwardly” and “downwardly” are relative terms to indicate position and direction of movement in easily recognized terms. Usually, these terms are relative to a line drawn from an upmost position at the surface to a point at the center of the earth, and would be appropriate for use in relatively straight, vertical wellbores. However, when the wellbore is highly deviated, such as from about 60 degrees from vertical, or horizontal, these terms do not make sense and therefore should not be taken as limitations. These terms are only used for ease of understanding as an indication of what the position or movement would be if taken within a vertical wellbore.
  • FIGS 1A-1C together show a semidiagrammatic cross section of a gas lift valve 8 shown in the closed position, used in a subterranean well (not shown), illustrating: a valve body 10 with a longitudinal bore 12 for sealable insertion in a side pocket mandrel 14, a variable orifice valve 16 in the body 10 which alternately permits, prohibits, or throttles fluid flow (represented by item 18 ⁇ see Figure 7) into said body through injection gas ports 13 in the mandrel 14, and an actuating means, shown generally by numeral 20 which is electro-hydraulically operated using a hydraulic pump 22 located in a downhole housing 24, an electric motor 26 connected to and driving the hydraulic pump 22 upon receipt of a signal through an electrical conduit 23 connected to a control panel (not shown) located at the earth's surface.
  • variable orifice valve 16 may include a carbide stem and seat 17.
  • the gas lift valve 8 may also be provided with one-way check valves 29 to prevent any fluid flow from the well conduit into the gas lift valve 8.
  • the gas lift valve 8 may also be provided with a latch 27 so the valve may be remotely installed and/or retrieved by well known wireline or coiled tubing intervention methods.
  • this embodiment of the present invention may also be provided with a valve connection collet 11, the structure and operation of which are well known to those of ordinary skill in the art.
  • FIGS 3A-3C together disclose another embodiment of a semidiagrammatic cross section of a gas lift valve 8 shown in the closed position, used in a subterranean well (not shown), illustrating: a valve body 10 with a longitudinal bore 12 for sealable insertion in a side pocket mandrel 14, a variable orifice valve 16 in the body 10 which alternately permits, prohibits, or throttles fluid flow (represented by item 18 ⁇ see Figure 11) into said body through injection gas ports 13 in the mandrel 14, and an actuating means shown generally by numeral 48 that is hydraulically operated. Further illustrated: hydraulic conduits 50 and 51 that route pressurized hydraulic fluid directly to a moveable piston 32, which is operatively connected to the variable orifice valve 16.
  • a fluid displacement control port 49 may also be provided for use during the bleeding off of the conduits 50 and 51, in a manner well known to those of ordinary skill in the art.
  • the variable orifice valve 16 may include a carbide stem and seat 17.
  • the gas lift valve 8 may also be provided with one-way check valves 29 to prevent any fluid flow from the well conduit into the gas lift valve 8.
  • the gas lift valve 8 may also be provided with a latch 27 so the valve may be remotely installed and/or retrieved by well known wireline or coiled tubing intervention methods.
  • this embodiment of the present invention may also be provided with a valve connection collet 11, the structure and operation of which are well known to those of ordinary skill in the art.
  • variable orifice valve 16 may be stopped at intermediate positions between open and closed to adjust the flow of lift or injection gas 31 therethrough, and is held in place by a position holder 33 which is configured to mechanically assure that the actuating means 52 remains in the position where set by the operator if conditions in the hydraulic system change slightly in use.
  • Closing the variable orifice valve 16 is accomplished by bleeding off the pressure from the control line 54, which causes the pneumatic pressure in the nitrogen coil chamber 56 to close the valve because it is higher than the hydraulic pressure in the hydraulic conduit 54.
  • An annulus port 53 may also be provided through the wall of the mandrel 14 through which pressure may be discharged to the annulus during operation.
  • valve mechanism generically known as a poppet valve to those skilled in the art of valve mechanics. It can, however, be appreciated that several well known valve mechanisms may obviously be employed and still be within the scope and spirit of the present invention. Rotating balls or plugs, butterfly valves, rising stem gates, and flappers are several other generic valve mechanisms which may obviously be employed to accomplish the same function in the same manner.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Fluid-Driven Valves (AREA)
EP02079411A 1996-08-15 1997-08-15 Lufthebeventil mit variabler Öffnung für hohen Durchsatz, ausgerüstet mit einer auswechselbaren Energiequelle sowie Anwendungsverfahren Expired - Lifetime EP1279795B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2396596P 1996-08-15 1996-08-15
US23965P 1996-08-15
EP97936508A EP0918918B1 (de) 1996-08-15 1997-08-15 LUFTHEBEVENTIL MIT VARIABLER öFFNUNG FüR HOHEN DURCHSATZ, AUSGERüSTET MIT EINER AUSWECHSELBAREN ENERGIEQUELLE UND ANWENDUNGSVERFAHREN

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP97936508A Division EP0918918B1 (de) 1996-08-15 1997-08-15 LUFTHEBEVENTIL MIT VARIABLER öFFNUNG FüR HOHEN DURCHSATZ, AUSGERüSTET MIT EINER AUSWECHSELBAREN ENERGIEQUELLE UND ANWENDUNGSVERFAHREN
EP97936508.7 Division 1998-02-19

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Publication Number Publication Date
EP1279795A1 true EP1279795A1 (de) 2003-01-29
EP1279795B1 EP1279795B1 (de) 2008-05-14

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EP02079411A Expired - Lifetime EP1279795B1 (de) 1996-08-15 1997-08-15 Lufthebeventil mit variabler Öffnung für hohen Durchsatz, ausgerüstet mit einer auswechselbaren Energiequelle sowie Anwendungsverfahren

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8327941B2 (en) 2007-08-30 2012-12-11 Schlumberger Technology Corporation Flow control device and method for a downhole oil-water separator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8291979B2 (en) 2007-03-27 2012-10-23 Schlumberger Technology Corporation Controlling flows in a well
US8006757B2 (en) 2007-08-30 2011-08-30 Schlumberger Technology Corporation Flow control system and method for downhole oil-water processing
US20220220818A1 (en) 2021-01-14 2022-07-14 Halliburton Energy Services, Inc. Gauge sensor for downhole pressure/temperature monitoring of esp intake pressure and discharge temperature

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239082A (en) * 1979-03-23 1980-12-16 Camco, Incorporated Multiple flow valves and sidepocket mandrel
US5176164A (en) * 1989-12-27 1993-01-05 Otis Engineering Corporation Flow control valve system
GB2289296A (en) * 1994-05-11 1995-11-15 Camco Int Spoolable coiled tubing mandrel and gas lift valves
US5535767A (en) * 1995-03-14 1996-07-16 Halliburton Company Remotely actuated adjustable choke valve and method for using same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239082A (en) * 1979-03-23 1980-12-16 Camco, Incorporated Multiple flow valves and sidepocket mandrel
US5176164A (en) * 1989-12-27 1993-01-05 Otis Engineering Corporation Flow control valve system
GB2289296A (en) * 1994-05-11 1995-11-15 Camco Int Spoolable coiled tubing mandrel and gas lift valves
US5535767A (en) * 1995-03-14 1996-07-16 Halliburton Company Remotely actuated adjustable choke valve and method for using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8327941B2 (en) 2007-08-30 2012-12-11 Schlumberger Technology Corporation Flow control device and method for a downhole oil-water separator

Also Published As

Publication number Publication date
EP1279795B1 (de) 2008-05-14

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