RU2002122762A - SYSTEM AND METHOD FOR OPTIMIZING A FLOW OF A FLUID IN A GAS-LIFT OIL WELL - Google Patents

SYSTEM AND METHOD FOR OPTIMIZING A FLOW OF A FLUID IN A GAS-LIFT OIL WELL

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Publication number
RU2002122762A
RU2002122762A RU2002122762/03A RU2002122762A RU2002122762A RU 2002122762 A RU2002122762 A RU 2002122762A RU 2002122762/03 A RU2002122762/03 A RU 2002122762/03A RU 2002122762 A RU2002122762 A RU 2002122762A RU 2002122762 A RU2002122762 A RU 2002122762A
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RU
Russia
Prior art keywords
fluid
production pipe
flow regime
downhole
flow
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RU2002122762/03A
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Russian (ru)
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RU2256067C2 (en
Inventor
Роберт Рекс БЕРНЕТТ (US)
Роберт Рекс БЕРНЕТТ
Фредерик Гордон мл. КАРЛ (US)
Фредерик Гордон Мл. КАРЛ
Вилль м Маунтджой СЕВЕДЖ (US)
Вилльям Маунтджой Севедж
Харолд Дж. ВАЙНГАР (US)
Харолд Дж. Вайнгар
Original Assignee
Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL)
Шелл Интернэшнл Рисерч Маатсхаппий Б.В.
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Publication of RU2002122762A publication Critical patent/RU2002122762A/en
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Publication of RU2256067C2 publication Critical patent/RU2256067C2/en

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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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/003—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings with electrically conducting or insulating means
    • 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
    • E21B34/066—Valve arrangements for boreholes or wells in wells electrically actuated
    • 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
    • E21B34/16—Control means therefor being outside the borehole
    • 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
    • E21B43/121—Lifting well fluids
    • E21B43/122—Gas lift
    • E21B43/123—Gas lift valves
    • 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
    • E21B43/14—Obtaining from a multiple-zone well
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/10—Locating fluid leaks, intrusions or movements
    • E21B47/107—Locating fluid leaks, intrusions or movements using acoustic means
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
    • 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
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/22—Fuzzy logic, artificial intelligence, neural networks or the like

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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)
  • Remote Sensing (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Pipeline Systems (AREA)
  • Earth Drilling (AREA)
  • Flow Control (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Measuring Volume Flow (AREA)

Abstract

A controllable gas-lift well having controllable gas-lift valves and sensors for detecting flow regime is provided. The well uses the tubing and casing to communicate with and power the controllable valve from the surface. Ferromagnetic chokes at the surface and downhole electrically isolate the tubing from the casing. A high band-width, adaptable spread spectrum communication system is used to communicate between the controllable valve and the surface. Sensors, such as pressure, temperature, and acoustic sensors, may be provided downhole to more accurately assess downhole conditions and in particular, flow regime. Operating conditions, such as gas injection rate, back pressure on tubing and position of downhole controllable valves are varied depending on flow regime, downhole conditions, oil production, gas usage and availability, to optimize production. An Artificial Neural Network (ANN) is trained to detect Taylor flow regime using downhole acoustic sensors, plus other sensors as desired. The detection and control system and method thereof is useful in many applications involving multi-phase flow in a conduit.

Claims (18)

1. Способ эксплуатации газлифтовой нефтяной скважины, содержащий следующие стадии: установка одного или нескольких датчиков непосредственно на производственной трубе (26) в нефтяной скважине; определение характеристики потока текучей среды в производственной трубе (26); передача указанной характеристики в поверхностный контроллер (34), применяя производственную трубу (26), отличающийся тем, что в качестве датчиков используют акустические датчики (51, 113) для определения акустической характеристики потока двухфазной текучей среды, режим течения двухфазной текучей среды определяют с применением поверхностного контроллера (34); и рабочие параметры нефтяной скважины (10) регулируют на основе определения указанного режима течения потока посредством поверхностного контроллера (34).1. A method of operating a gas-lift oil well, comprising the following steps: installing one or more sensors directly on a production pipe (26) in an oil well; determination of the characteristics of the fluid flow in the production pipe (26); transferring this characteristic to a surface controller (34) using a production pipe (26), characterized in that acoustic sensors (51, 113) are used as sensors to determine the acoustic characteristic of the two-phase fluid flow, the flow regime of the two-phase fluid is determined using the surface controller (34); and the operating parameters of the oil well (10) are adjusted based on the determination of the specified flow pattern by the surface controller (34). 2. Способ по п.1, в котором стадия управления содержит регулирование количества сжатого подъемного газа, нагнетаемого в нефтяную скважину (10).2. The method according to claim 1, in which the control stage comprises controlling the amount of compressed lifting gas injected into the oil well (10). 3. Способ по п.1, в котором стадия управления содержит регулирование количества сжатого газа, нагнетаемого в производственную трубу (26) через управляемый клапан (52) нисходящей скважины.3. The method according to claim 1, in which the control stage comprises controlling the amount of compressed gas injected into the production pipe (26) through a controlled valve (52) of the downhole. 4. Способ по п.1, в котором стадия определения характеристики потока содержит введение акустической характеристики в Искусственную Нейтральную Сеть.4. The method according to claim 1, wherein the step of determining the flow characteristics comprises introducing an acoustic characteristic into the Artificial Neutral Network. 5. Способ по п.1, в котором стадия управления содержит регулирование рабочих параметров для установления тэйлоровского режима потока.5. The method according to claim 1, in which the control stage comprises adjusting the operating parameters to establish a Taylor flow mode. 6. Способ по п.1, включающий определение дополнительных физических характеристик текучей среды.6. The method according to claim 1, comprising determining additional physical characteristics of the fluid. 7. Способ по п.6, включающий определение давления и температуры текучей среды в производственной трубе (26).7. The method according to claim 6, including determining the pressure and temperature of the fluid in the production pipe (26). 8. Способ по п.1, в котором используют производственную трубу, включающую ответвление трубы, проходящее от основной вертикальной нефтяной скважины.8. The method according to claim 1, in which a production pipe is used comprising a pipe branch extending from a main vertical oil well. 9. Способ по п.1, включающий стадию энергоснабжения акустического датчика, используя производственную трубу (26).9. The method according to claim 1, including the stage of power supply of the acoustic sensor using the production pipe (26). 10. Газлифтовая нефтяная скважина, содержащая производственную трубу (26) для транспортирования двухфазной текучей среды, содержащей нефть и подъемный газ, к поверхности, один или несколько датчиков (51, 113) нисходящей скважины, установленных непосредственно на производственной трубе (26) и предназначенных для определения физических параметров текучей среды, модем, оперативно связанный с производственной трубой (26) для получения данных от датчика и передачи данных по производственной трубе (26) на поверхность, поверхностный контроллер для получения указанных данных и определения режима потока текучей среды в производственной трубе (26) и дроссель (30) и/или управляемый клапан (52) нисходящей скважины для управления количеством подъемного газа, нагнетаемого в производственную трубу (26), отличающаяся тем, что дроссель (30) и/или клапан нисходящей скважины (52) управляются поверхностным контроллером (34) на основе определенного режима потока двухфазной текучей среды.10. A gas-lift oil well containing a production pipe (26) for transporting a two-phase fluid containing oil and lifting gas to the surface, one or more downstream sensors (51, 113) installed directly on the production pipe (26) and intended for determining the physical parameters of the fluid, a modem operatively connected to the production pipe (26) for receiving data from the sensor and transmitting data through the production pipe (26) to the surface, a surface controller for the floor the data and determine the flow regime of the fluid in the production pipe (26) and the throttle (30) and / or controlled valve (52) of the downhole to control the amount of lifting gas injected into the production pipe (26), characterized in that the throttle ( 30) and / or a downhole valve (52) are controlled by a surface controller (34) based on a specific two-phase fluid flow regime. 11. Скважина по п.10, в которой датчик содержит акустический датчик (51, 113).11. The well of claim 10, wherein the sensor comprises an acoustic sensor (51, 113). 12. Скважина по п.11, в которой компьютер, включающий модем, содержит Искусственную Нейтральную Сеть для определения режима потока текучей, среды на основе измерений акустического датчика (51, 113).12. The well of claim 11, in which the computer including the modem contains an Artificial Neutral Network for determining the flow regime of a fluid medium based on measurements of an acoustic sensor (51, 113). 13. Скважина по п.10, включающая в себя источник (34) энергии, соединенный с производственной трубой (26) для подачи энергии к датчику (51, 113).13. The well of claim 10, including a source of energy (34) connected to the production pipe (26) for supplying energy to the sensor (51, 113). 14. Способ управления потоком многофазной текучей среды в трубопроводе, содержащий следующие стадии: определение акустической характеристики потока текучей среды вдоль участка трубопровода; передача указанной характеристики в контроллер через трубопровод; определение режима потока текучей среды на указанном участке трубопровода на основе указанной характеристики, отличающийся тем, что указанная характеристика является акустической характеристикой многофазового потока текучей среды и количество, по меньшей мере, одной из текучих сред в трубопроводе регулируют на основе определенного режима потока текучей среды для установления требуемого режима потока.14. A method for controlling the flow of a multiphase fluid in a pipeline, comprising the steps of: determining the acoustic characteristics of a fluid flow along a portion of a pipeline; transferring the specified characteristic to the controller through the pipeline; determining a fluid flow regime in said pipeline section based on said characteristic, characterized in that said characteristic is an acoustic characteristic of a multiphase fluid flow, and the amount of at least one of the fluid in the pipeline is controlled based on a certain fluid flow regime to establish desired flow mode. 15. Способ по п.14, в котором трубопровод включает нефтяную скважину и многофазовую текучую среду, содержащую подъемный газ, нагнетаемый в скважину, и нефть.15. The method according to 14, in which the pipeline includes an oil well and a multiphase fluid containing lifting gas injected into the well, and oil. 16. Способ по п.14, в котором используют контроллер, включающий компьютер, имеющий Искусственную Нейтральную Сеть, предназначенную для определения режима потока текучей среды на основе характеристики.16. The method of claim 14, wherein a controller is used that includes a computer having an Artificial Neutral Network for determining a fluid flow mode based on a characteristic. 17. Способ по п.14, в котором требуемый режим потока текучей среды содержит тэйлоровский режим потока.17. The method of claim 14, wherein the desired fluid flow regime comprises a Taylor flow regime. 18. Способ по п.15, в котором требуемый режим потока содержит минимизацию количества подъемного газа и максимизацию количества добытой нефти.18. The method according to clause 15, in which the desired flow regime comprises minimizing the amount of lifting gas and maximizing the amount of oil produced.
RU2002122762/03A 2000-01-24 2001-01-22 Method for operating gas-lifting oil well, gas-lifting oil well and method for controlling flow of multi-phase flowing substance in gas-lift oil well RU2256067C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17799700P 2000-01-24 2000-01-24
US60/177,997 2000-01-24

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RU2002122762A true RU2002122762A (en) 2004-01-27
RU2256067C2 RU2256067C2 (en) 2005-07-10

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EP (1) EP1250513B1 (en)
AT (1) ATE292742T1 (en)
AU (1) AU767417B2 (en)
BR (1) BR0107821B1 (en)
DE (1) DE60109894T2 (en)
MX (1) MXPA02007176A (en)
NO (1) NO330977B1 (en)
OA (1) OA12141A (en)
RU (1) RU2256067C2 (en)
WO (1) WO2001055553A1 (en)

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BR0107821B1 (en) 2010-09-08
NO20023501L (en) 2002-09-13
OA12141A (en) 2006-05-05
NO20023501D0 (en) 2002-07-23
WO2001055553A1 (en) 2001-08-02
NO330977B1 (en) 2011-08-29
EP1250513A1 (en) 2002-10-23
BR0107821A (en) 2004-07-06
RU2256067C2 (en) 2005-07-10
DE60109894D1 (en) 2005-05-12
AU3733701A (en) 2001-08-07
AU767417B2 (en) 2003-11-06
ATE292742T1 (en) 2005-04-15
DE60109894T2 (en) 2006-03-23
MXPA02007176A (en) 2003-01-28
EP1250513B1 (en) 2005-04-06

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