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NO20064638L - Gass-styrt pumpe for hydrokarbonbronner. - Google Patents

Gass-styrt pumpe for hydrokarbonbronner.

Info

Publication number
NO20064638L
NO20064638L NO20064638A NO20064638A NO20064638L NO 20064638 L NO20064638 L NO 20064638L NO 20064638 A NO20064638 A NO 20064638A NO 20064638 A NO20064638 A NO 20064638A NO 20064638 L NO20064638 L NO 20064638L
Authority
NO
Norway
Prior art keywords
chamber
well
gas
valve assembly
controlled pump
Prior art date
Application number
NO20064638A
Other languages
English (en)
Other versions
NO338873B1 (no
Inventor
William F Howard
Darren J Wiltse
William C Lane
Original Assignee
Weatherford Lamb
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.)
Filing date
Publication date
Application filed by Weatherford Lamb filed Critical Weatherford Lamb
Publication of NO20064638L publication Critical patent/NO20064638L/no
Publication of NO338873B1 publication Critical patent/NO338873B1/no

Links

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
    • 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
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • E21B43/129—Adaptations of down-hole pump systems powered by fluid supplied from 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
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E21B43/2406—Steam assisted gravity drainage [SAGD]
    • 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
    • E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
    • E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
    • F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped
    • F04F1/08—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped specially adapted for raising liquids from great depths, e.g. in wells

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

Det tilveiebringes et apparat og fremgangsmåter for å øke produksjonen fra en brønn (105). I én utførelse innbefatter en brønnpumpe (100) til bruk i en brønn (105) et kammer (170) for akkumulasjon av for-masjonsfluider og en ventilsammenstilling (150) for fylling og utlufting av gass til og fra kammeret (170). I en annen utførelse innbefatter en gassdrevet pumpe (100) for transport av brønnfluider i en brønn (105) et kammer (170) for akkumulasjon av brønnfluider, hvor kammeret (170) står i fluidforbindelse med et produksjonsrør (135) og en på overflaten installert ventilsammenstilling (150) står i fluidforbindelse med kammeret (170), og hvor ventilsammenstillingen (150) er tilpasset for å regulere gasstrømmen til eller fra kammeret (170). I en annen utførelse omfatter ventilsammenstillingen (150) en utskiftbar reguleringsventil (150) anbrakt i et hus (255).
NO20064638A 2005-10-12 2006-10-11 Gassdrevet pumpe for hydrokarbonbrønner NO338873B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/248,443 US7445049B2 (en) 2002-01-22 2005-10-12 Gas operated pump for hydrocarbon wells

Publications (2)

Publication Number Publication Date
NO20064638L true NO20064638L (no) 2007-04-13
NO338873B1 NO338873B1 (no) 2016-10-31

Family

ID=37491415

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20064638A NO338873B1 (no) 2005-10-12 2006-10-11 Gassdrevet pumpe for hydrokarbonbrønner

Country Status (4)

Country Link
US (1) US7445049B2 (no)
CA (1) CA2563136C (no)
GB (1) GB2431182B (no)
NO (1) NO338873B1 (no)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8760657B2 (en) * 2001-04-11 2014-06-24 Gas Sensing Technology Corp In-situ detection and analysis of methane in coal bed methane formations with spectrometers
US9109429B2 (en) 2002-12-08 2015-08-18 Baker Hughes Incorporated Engineered powder compact composite material
US9101978B2 (en) 2002-12-08 2015-08-11 Baker Hughes Incorporated Nanomatrix powder metal compact
US9079246B2 (en) 2009-12-08 2015-07-14 Baker Hughes Incorporated Method of making a nanomatrix powder metal compact
US8403037B2 (en) 2009-12-08 2013-03-26 Baker Hughes Incorporated Dissolvable tool and method
US8327931B2 (en) 2009-12-08 2012-12-11 Baker Hughes Incorporated Multi-component disappearing tripping ball and method for making the same
US9682425B2 (en) 2009-12-08 2017-06-20 Baker Hughes Incorporated Coated metallic powder and method of making the same
CA2600795C (en) * 2005-03-14 2016-10-25 Well Dog, Inc. Determination of coal bed natural gas production factors and a system to determine same
US20090038806A1 (en) * 2007-08-10 2009-02-12 Eog Resources, Inc. Accumulation and recycling of captured gas in recovery of subterranean fluids
US7748443B2 (en) 2008-05-08 2010-07-06 William C. Quinlan Dual packer for a horizontal well
US7793727B2 (en) * 2008-09-03 2010-09-14 Baker Hughes Incorporated Low rate gas injection system
US8794307B2 (en) 2008-09-22 2014-08-05 Schlumberger Technology Corporation Wellsite surface equipment systems
WO2010124303A2 (en) * 2009-04-24 2010-10-28 Completion Technology Ltd. Processes and systems for treating oil and gas wells
US9227243B2 (en) 2009-12-08 2016-01-05 Baker Hughes Incorporated Method of making a powder metal compact
US9243475B2 (en) 2009-12-08 2016-01-26 Baker Hughes Incorporated Extruded powder metal compact
US8528633B2 (en) 2009-12-08 2013-09-10 Baker Hughes Incorporated Dissolvable tool and method
US9127515B2 (en) 2010-10-27 2015-09-08 Baker Hughes Incorporated Nanomatrix carbon composite
US8573295B2 (en) 2010-11-16 2013-11-05 Baker Hughes Incorporated Plug and method of unplugging a seat
US8425651B2 (en) 2010-07-30 2013-04-23 Baker Hughes Incorporated Nanomatrix metal composite
US10240419B2 (en) 2009-12-08 2019-03-26 Baker Hughes, A Ge Company, Llc Downhole flow inhibition tool and method of unplugging a seat
US8512009B2 (en) * 2010-01-11 2013-08-20 Baker Hughes Incorporated Steam driven pump for SAGD system
US8657014B2 (en) * 2010-03-04 2014-02-25 Harbison-Fischer, Inc. Artificial lift system and method for well
US8424610B2 (en) 2010-03-05 2013-04-23 Baker Hughes Incorporated Flow control arrangement and method
US8776884B2 (en) 2010-08-09 2014-07-15 Baker Hughes Incorporated Formation treatment system and method
US9090955B2 (en) 2010-10-27 2015-07-28 Baker Hughes Incorporated Nanomatrix powder metal composite
US8631876B2 (en) 2011-04-28 2014-01-21 Baker Hughes Incorporated Method of making and using a functionally gradient composite tool
US9080098B2 (en) 2011-04-28 2015-07-14 Baker Hughes Incorporated Functionally gradient composite article
US9139928B2 (en) 2011-06-17 2015-09-22 Baker Hughes Incorporated Corrodible downhole article and method of removing the article from downhole environment
US9707739B2 (en) 2011-07-22 2017-07-18 Baker Hughes Incorporated Intermetallic metallic composite, method of manufacture thereof and articles comprising the same
US8783365B2 (en) 2011-07-28 2014-07-22 Baker Hughes Incorporated Selective hydraulic fracturing tool and method thereof
US9833838B2 (en) 2011-07-29 2017-12-05 Baker Hughes, A Ge Company, Llc Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle
US9643250B2 (en) 2011-07-29 2017-05-09 Baker Hughes Incorporated Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle
US9057242B2 (en) 2011-08-05 2015-06-16 Baker Hughes Incorporated Method of controlling corrosion rate in downhole article, and downhole article having controlled corrosion rate
US9033055B2 (en) 2011-08-17 2015-05-19 Baker Hughes Incorporated Selectively degradable passage restriction and method
US9856547B2 (en) 2011-08-30 2018-01-02 Bakers Hughes, A Ge Company, Llc Nanostructured powder metal compact
US9090956B2 (en) 2011-08-30 2015-07-28 Baker Hughes Incorporated Aluminum alloy powder metal compact
US9109269B2 (en) 2011-08-30 2015-08-18 Baker Hughes Incorporated Magnesium alloy powder metal compact
US9643144B2 (en) 2011-09-02 2017-05-09 Baker Hughes Incorporated Method to generate and disperse nanostructures in a composite material
US9187990B2 (en) 2011-09-03 2015-11-17 Baker Hughes Incorporated Method of using a degradable shaped charge and perforating gun system
US9133695B2 (en) 2011-09-03 2015-09-15 Baker Hughes Incorporated Degradable shaped charge and perforating gun system
US9347119B2 (en) 2011-09-03 2016-05-24 Baker Hughes Incorporated Degradable high shock impedance material
US9284812B2 (en) 2011-11-21 2016-03-15 Baker Hughes Incorporated System for increasing swelling efficiency
US9010416B2 (en) 2012-01-25 2015-04-21 Baker Hughes Incorporated Tubular anchoring system and a seat for use in the same
US9068428B2 (en) 2012-02-13 2015-06-30 Baker Hughes Incorporated Selectively corrodible downhole article and method of use
US9605508B2 (en) 2012-05-08 2017-03-28 Baker Hughes Incorporated Disintegrable and conformable metallic seal, and method of making the same
US10533406B2 (en) 2013-03-14 2020-01-14 Schlumberger Technology Corporation Systems and methods for pairing system pumps with fluid flow in a fracturing structure
US9534604B2 (en) * 2013-03-14 2017-01-03 Schlumberger Technology Corporation System and method of controlling manifold fluid flow
US9869164B2 (en) 2013-08-05 2018-01-16 Exxonmobil Upstream Research Company Inclined wellbore optimization for artificial lift applications
US9816339B2 (en) 2013-09-03 2017-11-14 Baker Hughes, A Ge Company, Llc Plug reception assembly and method of reducing restriction in a borehole
FR3011874B1 (fr) * 2013-10-14 2015-11-06 Total Sa Installation de production d’hydrocarbures, procede de production et procede de mise a niveau
US10689740B2 (en) 2014-04-18 2020-06-23 Terves, LLCq Galvanically-active in situ formed particles for controlled rate dissolving tools
US11167343B2 (en) 2014-02-21 2021-11-09 Terves, Llc Galvanically-active in situ formed particles for controlled rate dissolving tools
US10150713B2 (en) 2014-02-21 2018-12-11 Terves, Inc. Fluid activated disintegrating metal system
US9869161B2 (en) 2014-09-22 2018-01-16 General Electric Company Gas vent system and methods of operating the same
US10472946B2 (en) * 2014-09-23 2019-11-12 Weatherford Technology Holdings, Llc Smarter slug flow conditioning and control
GB2533847B (en) * 2014-11-06 2017-04-05 Logined Bv Local layer geometry engine with work zone generated from buffer defined relative to a wellbore trajectory
US9910026B2 (en) 2015-01-21 2018-03-06 Baker Hughes, A Ge Company, Llc High temperature tracers for downhole detection of produced water
US10378303B2 (en) 2015-03-05 2019-08-13 Baker Hughes, A Ge Company, Llc Downhole tool and method of forming the same
US10221637B2 (en) 2015-08-11 2019-03-05 Baker Hughes, A Ge Company, Llc Methods of manufacturing dissolvable tools via liquid-solid state molding
US10016810B2 (en) 2015-12-14 2018-07-10 Baker Hughes, A Ge Company, Llc Methods of manufacturing degradable tools using a galvanic carrier and tools manufactured thereof
US10907450B2 (en) * 2015-12-15 2021-02-02 General Electric Company Surface pressure controlled gas vent system for horizontal wells
US11486243B2 (en) * 2016-08-04 2022-11-01 Baker Hughes Esp, Inc. ESP gas slug avoidance system
US10865635B2 (en) * 2017-03-14 2020-12-15 Baker Hughes Oilfield Operations, Llc Method of controlling a gas vent system for horizontal wells
CA3012511A1 (en) 2017-07-27 2019-01-27 Terves Inc. Degradable metal matrix composite
CN108386167A (zh) * 2018-02-01 2018-08-10 中国石油天然气集团有限公司 水平井排水采气完井管柱及生产方法
CA3106970A1 (en) * 2020-01-29 2021-07-29 Graco Minnesota Inc. Multi-well chemical injection manifold and system
US11566502B2 (en) 2021-06-10 2023-01-31 Weatherford Technology Holdings, Llc Gas lift system

Family Cites Families (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2336683A (en) * 1940-06-25 1943-12-14 Nat Supply Co Gas lift pump
US2923357A (en) * 1958-06-09 1960-02-02 Camco Inc Dual completion well installation
US3334690A (en) * 1964-06-01 1967-08-08 Udell Inc Method and apparatus for installing and removing gas lift valves in a well
US3833060A (en) * 1973-07-11 1974-09-03 Union Oil Co Well completion and pumping system
US3873238A (en) * 1973-09-19 1975-03-25 Johnnie A Elfarr Method and apparatus for flowing crude oil from a well
US3889748A (en) * 1974-01-28 1975-06-17 Perry Bass Inc Apparatus for installing and removing flow control devices from a mandrel having one or more pockets
US3894814A (en) * 1974-06-04 1975-07-15 Thomas H Morgan Artificial lift for oil wells
US3941510A (en) * 1974-08-09 1976-03-02 Morgan Thomas H Artificial lift for oil wells
US3894583A (en) * 1974-08-09 1975-07-15 Thomas H Morgan Artificial lift for oil wells
US4239082A (en) * 1979-03-23 1980-12-16 Camco, Incorporated Multiple flow valves and sidepocket mandrel
CA1130201A (en) * 1979-07-10 1982-08-24 Esso Resources Canada Limited Method for continuously producing viscous hydrocarbons by gravity drainage while injecting heated fluids
US4390061A (en) * 1980-12-31 1983-06-28 Charles Short Apparatus for production of liquid from wells
US4534414A (en) * 1982-11-10 1985-08-13 Camco, Incorporated Hydraulic control fluid communication nipple
US4727936A (en) * 1983-02-28 1988-03-01 Q.E.D. Environmental Systems, Inc. Recovery and control system for leachate collection
US4667736A (en) * 1985-05-24 1987-05-26 Otis Engineering Corporation Surface controlled subsurface safety valve
US4791990A (en) * 1986-05-27 1988-12-20 Mahmood Amani Liquid removal method system and apparatus for hydrocarbon producing
US4901798A (en) * 1986-05-27 1990-02-20 Mahmood Amani Apparatus and method for removal of accumulated liquids in hydrocarbon producing wells
US5058670A (en) * 1989-05-15 1991-10-22 Crawford Douglas W Oriented valve and latch for side pocket mandrel
US5006046A (en) * 1989-09-22 1991-04-09 Buckman William G Method and apparatus for pumping liquid from a well using wellbore pressurized gas
US5215146A (en) * 1991-08-29 1993-06-01 Mobil Oil Corporation Method for reducing startup time during a steam assisted gravity drainage process in parallel horizontal wells
EP0539040A3 (en) * 1991-10-21 1993-07-21 Halliburton Company Downhole casing valve
US5211242A (en) * 1991-10-21 1993-05-18 Amoco Corporation Apparatus and method for unloading production-inhibiting liquid from a well
CA2055549C (en) * 1991-11-14 2002-07-23 Tee Sing Ong Recovering hydrocarbons from tar sand or heavy oil reservoirs
US5373897A (en) * 1993-04-29 1994-12-20 Skarvan; Richard Underground fluid recovery device
BR9404096A (pt) * 1994-10-14 1996-12-24 Petroleo Brasileiro Sa Método e aparelho para produção intermitente de petróleo com interface mecânica
US5806598A (en) * 1996-08-06 1998-09-15 Amani; Mohammad Apparatus and method for removing fluids from underground wells
US5735346A (en) * 1996-04-29 1998-04-07 Itt Fluid Technology Corporation Fluid level sensing for artificial lift control systems
US5806599A (en) * 1996-07-12 1998-09-15 Hisaw; Jack C. Method for accelerating production
US6068015A (en) * 1996-08-15 2000-05-30 Camco International Inc. Sidepocket mandrel with orienting feature
US6070608A (en) * 1997-08-15 2000-06-06 Camco International Inc. Variable orifice gas lift valve for high flow rates with detachable power source and method of using
US6039121A (en) 1997-02-20 2000-03-21 Rangewest Technologies Ltd. Enhanced lift method and apparatus for the production of hydrocarbons
GB2339902B (en) * 1997-05-02 2002-01-23 Baker Hughes Inc Monitoring of downhole parameters
US5911278A (en) * 1997-06-20 1999-06-15 Reitz; Donald D. Calliope oil production system
US6257338B1 (en) * 1998-11-02 2001-07-10 Halliburton Energy Services, Inc. Method and apparatus for controlling fluid flow within wellbore with selectively set and unset packer assembly
US6354377B1 (en) * 1998-11-30 2002-03-12 Valence Operating Company Gas displaced chamber lift system having gas lift assist
US6021849A (en) * 1998-11-30 2000-02-08 Averhoff; Jon R. Double acting gas displaced chamber lift system and method
US6227302B1 (en) * 1999-06-03 2001-05-08 Cameo International, Inc. Apparatus and method for controlling fluid flow in a wellbore
CA2382438C (en) * 1999-09-15 2008-03-18 Shell Canada Limited System for enhancing fluid flow in a well
CA2425604C (en) * 2000-10-11 2007-12-18 Weatherford/Lamb, Inc. Gas operated pump for use in a wellbore
CA2325777C (en) * 2000-11-10 2003-05-27 Imperial Oil Resources Limited Combined steam and vapor extraction process (savex) for in situ bitumen and heavy oil production
US6973973B2 (en) 2002-01-22 2005-12-13 Weatherford/Lamb, Inc. Gas operated pump for hydrocarbon wells
US6672392B2 (en) * 2002-03-12 2004-01-06 Donald D. Reitz Gas recovery apparatus, method and cycle having a three chamber evacuation phase for improved natural gas production and down-hole liquid management
US7100695B2 (en) * 2002-03-12 2006-09-05 Reitz Donald D Gas recovery apparatus, method and cycle having a three chamber evacuation phase and two liquid extraction phases for improved natural gas production

Also Published As

Publication number Publication date
CA2563136C (en) 2009-09-15
US7445049B2 (en) 2008-11-04
GB2431182A (en) 2007-04-18
GB0620281D0 (en) 2006-11-22
CA2563136A1 (en) 2007-04-12
NO338873B1 (no) 2016-10-31
GB2431182B (en) 2010-09-29
US20060081378A1 (en) 2006-04-20

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Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: WEATHERFORD TECHNOLOGY HOLDINGS, US

MM1K Lapsed by not paying the annual fees