DK69397A - Fremgangsmåde til regulering af dannelsen af gashydratkrystaller i en fluid blanding. - Google Patents

Fremgangsmåde til regulering af dannelsen af gashydratkrystaller i en fluid blanding. Download PDF

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Publication number
DK69397A
DK69397A DK069397A DK69397A DK69397A DK 69397 A DK69397 A DK 69397A DK 069397 A DK069397 A DK 069397A DK 69397 A DK69397 A DK 69397A DK 69397 A DK69397 A DK 69397A
Authority
DK
Denmark
Prior art keywords
formation
controlling
fluid mixture
gas hydrate
hydrate crystals
Prior art date
Application number
DK069397A
Other languages
English (en)
Inventor
Marek K Pakulski
Original Assignee
Bj Services Co
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 Bj Services Co filed Critical Bj Services Co
Publication of DK69397A publication Critical patent/DK69397A/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/003—Additives for gaseous fuels
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/22—Hydrates inhibition by using well treatment fluids containing inhibitors of hydrate formers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S585/00—Chemistry of hydrocarbon compounds
    • Y10S585/949—Miscellaneous considerations
    • Y10S585/95—Prevention or removal of corrosion or solid deposits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0402—Cleaning, repairing, or assembling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DK069397A 1995-10-13 1997-06-13 Fremgangsmåde til regulering af dannelsen af gashydratkrystaller i en fluid blanding. DK69397A (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/543,014 US5741758A (en) 1995-10-13 1995-10-13 Method for controlling gas hydrates in fluid mixtures
PCT/US1996/015770 WO1997013824A1 (en) 1995-10-13 1996-10-01 Method for controlling gas hydrates in fluid mixtures

Publications (1)

Publication Number Publication Date
DK69397A true DK69397A (da) 1997-06-13

Family

ID=24166231

Family Applications (1)

Application Number Title Priority Date Filing Date
DK069397A DK69397A (da) 1995-10-13 1997-06-13 Fremgangsmåde til regulering af dannelsen af gashydratkrystaller i en fluid blanding.

Country Status (6)

Country Link
US (2) US5741758A (da)
AU (1) AU7384296A (da)
DK (1) DK69397A (da)
GB (1) GB2311076B (da)
NO (1) NO972680D0 (da)
WO (1) WO1997013824A1 (da)

Families Citing this family (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0828778B1 (en) * 1995-06-02 2004-05-12 Nippon Shokubai Co., Ltd. Clathrate hydrate inhibitor and method of inhibiting the formation of clathrate hydrates using it
US6080704A (en) * 1997-03-11 2000-06-27 Halliday; William S. Glycols as gas hydrate inhibitors in drilling, drill-in, and completion fluids
EP0896123B1 (fr) * 1997-08-05 2005-07-27 Institut Français du Pétrole Procédé pour ralentir la croissance et/ou l'agglomération et éventuellement retarder la formation d'hydrates dans un effluent de production
FR2767068B1 (fr) * 1997-08-05 1999-09-17 Inst Francais Du Petrole Procede pour retarder la croissance et/ou l'agglomeration d'hydrates dans un effluent de production
US6025302A (en) * 1998-05-18 2000-02-15 Bj Services Company Quaternized polyether amines as gas hydrate inhibitors
US6635604B1 (en) 1999-02-11 2003-10-21 Baker Hughes Incorporated Low molecular weight water soluble organic compounds as crystallization point suppressants in brines
FR2792997B1 (fr) 1999-04-29 2001-06-29 Inst Francais Du Petrole Formulation d'additifs pour ameliorer le transport d'effluents petroliers susceptibles de contenir des hydrates et procede utilisant cette formulation
AUPQ228399A0 (en) * 1999-08-17 1999-09-09 Woodside Energy Limited Production plant
GB9930219D0 (en) 1999-12-21 2000-02-09 Bp Exploration Operating Process
US6180699B1 (en) 2000-02-02 2001-01-30 Isp Investments Inc. Blend for preventing or retarding the formation of gas hydrates
US6609578B2 (en) 2000-02-11 2003-08-26 Mo M-I Llc Shale hydration inhibition agent and method of use
US6247543B1 (en) * 2000-02-11 2001-06-19 M-I Llc Shale hydration inhibition agent and method of use
BR0110771A (pt) * 2000-05-15 2003-02-11 Bj Services Co Composição e método de serviço em poços
US6359047B1 (en) * 2001-03-20 2002-03-19 Isp Investments Inc. Gas hydrate inhibitor
CA2410578A1 (en) * 2001-03-29 2002-11-25 Mitsubishi Heavy Industries, Ltd. Gas hydrate production device and gas hydrate dehydrating device
JP5019683B2 (ja) * 2001-08-31 2012-09-05 三菱重工業株式会社 ガスハイドレートスラリーの脱水装置及び脱水方法
US7012043B2 (en) * 2001-11-08 2006-03-14 Huntsman Petrochemical Corporation Drilling fluids
US20060009363A1 (en) * 2001-11-13 2006-01-12 Baker Hughes Incorporated Deep water completions fracturing fluid compositions
US20030092584A1 (en) * 2001-11-13 2003-05-15 Crews James B. Deep water completions fracturing fluid compositions
US6831043B2 (en) * 2002-01-31 2004-12-14 M-I Llc High performance water based drilling mud and method of use
US7164051B2 (en) * 2002-09-03 2007-01-16 Baker Hughes Incorporated Gas hydrate inhibitors
WO2005005567A1 (en) * 2003-07-02 2005-01-20 Exxonmobil Upstream Research Company A method for inhibiting hydrate formation
US7084092B2 (en) * 2003-08-25 2006-08-01 M-I L.L.C. Shale hydration inhibition agent and method of use
WO2005026291A2 (en) * 2003-09-12 2005-03-24 Captur Technologies Co., L.L.C. Controlling the formation of crystalline hydrates in fluid systems
US20050085675A1 (en) * 2003-10-21 2005-04-21 Vaithilingam Panchalingam Methods for inhibiting hydrate blockage in oil and gas pipelines using ester compounds
US7491682B2 (en) * 2004-12-15 2009-02-17 Bj Services Company Method of inhibiting or controlling formation of inorganic scales
US20060223713A1 (en) * 2005-04-05 2006-10-05 Bj Services Company Method of completing a well with hydrate inhibitors
AU2006234825B2 (en) * 2005-04-07 2011-08-18 Exxonmobil Upstream Research Company Recovery of kinetic hydrate inhibitor
US7452848B2 (en) * 2005-04-26 2008-11-18 Air Products And Chemicals, Inc. Amine-based gas hydrate inhibitors
US8436219B2 (en) 2006-03-15 2013-05-07 Exxonmobil Upstream Research Company Method of generating a non-plugging hydrate slurry
US8821754B2 (en) * 2006-03-21 2014-09-02 Akzo Nobel N.V. Additive for preserving the fluidity of fluids containing gas hydrates
CA2832452C (en) * 2006-03-21 2014-11-18 Akzo Nobel N.V. Additive for preserving the fluidity of fluids containing gas hydrates
US7481276B2 (en) * 2006-05-12 2009-01-27 Bj Services Company Method of inhibiting and/or preventing corrosion in oilfield treatment applications
US7918281B2 (en) * 2007-03-06 2011-04-05 Baker Hughes Incorporated Method of treating flow conduits and vessels with foamed composition
US7475730B2 (en) * 2007-03-06 2009-01-13 Bj Services Company Method of treating well with foamed composition
US8490699B2 (en) * 2007-07-25 2013-07-23 Schlumberger Technology Corporation High solids content slurry methods
US9040468B2 (en) 2007-07-25 2015-05-26 Schlumberger Technology Corporation Hydrolyzable particle compositions, treatment fluids and methods
US10011763B2 (en) 2007-07-25 2018-07-03 Schlumberger Technology Corporation Methods to deliver fluids on a well site with variable solids concentration from solid slurries
US8936082B2 (en) 2007-07-25 2015-01-20 Schlumberger Technology Corporation High solids content slurry systems and methods
US8490698B2 (en) * 2007-07-25 2013-07-23 Schlumberger Technology Corporation High solids content methods and slurries
US9080440B2 (en) 2007-07-25 2015-07-14 Schlumberger Technology Corporation Proppant pillar placement in a fracture with high solid content fluid
EP2031044A1 (en) 2007-08-29 2009-03-04 Research Institute of Petroleum Industry (RIPI) Stabilization of gas hydrates
WO2009042319A1 (en) * 2007-09-25 2009-04-02 Exxonmobil Upstream Research Company Method for managing hydrates in subsea production line
DE102007063060A1 (de) 2007-12-28 2009-07-02 Basf Construction Polymers Gmbh Pfropfcopolymer als Gashydratinhibitor
US7968500B2 (en) 2008-06-25 2011-06-28 Baker Hughes Incorporated Gas hydrate protection with heat producing two-component gas hydrate inhibitors
US8356667B2 (en) * 2009-06-12 2013-01-22 Baker Hughes Incorporated Liquid crystals for drilling, completion and production fluids
US7833947B1 (en) 2009-06-25 2010-11-16 Schlumberger Technology Corporation Method for treatment of a well using high solid content fluid delivery
WO2011109118A1 (en) * 2010-03-05 2011-09-09 Exxonmobil Upstream Research Company System and method for creating flowable hydrate slurries in production fluids
US8662172B2 (en) 2010-04-12 2014-03-04 Schlumberger Technology Corporation Methods to gravel pack a well using expanding materials
US8505628B2 (en) 2010-06-30 2013-08-13 Schlumberger Technology Corporation High solids content slurries, systems and methods
US8511381B2 (en) 2010-06-30 2013-08-20 Schlumberger Technology Corporation High solids content slurry methods and systems
US10822536B2 (en) 2010-07-19 2020-11-03 Baker Hughes, A Ge Company, Llc Method of using a screen containing a composite for release of well treatment agent into a well
US9976070B2 (en) 2010-07-19 2018-05-22 Baker Hughes, A Ge Company, Llc Method of using shaped compressed pellets in well treatment operations
US9010430B2 (en) 2010-07-19 2015-04-21 Baker Hughes Incorporated Method of using shaped compressed pellets in treating a well
US20120103456A1 (en) * 2010-08-25 2012-05-03 Massachusetts Institute Of Technology Articles and methods for reducing hydrate adhesion
US8183185B2 (en) 2010-10-05 2012-05-22 Baker Hughes Incoporated Well servicing fluid comprising an organic salt being the product of an organic acid and an organic amine base and method of servicing a well with the fluid
WO2012058089A2 (en) * 2010-10-28 2012-05-03 Conocophillips Company Reservoir pressure testing to determine hydrate composition
US8607870B2 (en) 2010-11-19 2013-12-17 Schlumberger Technology Corporation Methods to create high conductivity fractures that connect hydraulic fracture networks in a well
US8664168B2 (en) 2011-03-30 2014-03-04 Baker Hughes Incorporated Method of using composites in the treatment of wells
US9133387B2 (en) 2011-06-06 2015-09-15 Schlumberger Technology Corporation Methods to improve stability of high solid content fluid
US9803457B2 (en) 2012-03-08 2017-10-31 Schlumberger Technology Corporation System and method for delivering treatment fluid
US9863228B2 (en) 2012-03-08 2018-01-09 Schlumberger Technology Corporation System and method for delivering treatment fluid
US9528354B2 (en) 2012-11-14 2016-12-27 Schlumberger Technology Corporation Downhole tool positioning system and method
US9388335B2 (en) 2013-07-25 2016-07-12 Schlumberger Technology Corporation Pickering emulsion treatment fluid
JP2016538354A (ja) 2013-10-02 2016-12-08 ザ ルブリゾル コーポレイションＴｈｅ Ｌｕｂｒｉｚｏｌ Ｃｏｒｐｏｒａｔｉｏｎ アミドアミンガスハイドレート阻害剤
AR099285A1 (es) * 2014-02-07 2016-07-13 Huntsman Petrochemical Llc Polieteraminas secundarias como inhibidores de hidratos del gas natural, en bajas dosis
HUE058857T2 (hu) 2014-07-23 2022-09-28 Baker Hughes Holdings Llc Fém-oxiddal bevont magból álló kalcinált szubsztrátumhoz tapadó kútkezelõ szert és/vagy nyomjelzõt tartalmazó kompozit és eljárás annak használatára
US9834720B2 (en) 2014-12-31 2017-12-05 Ecolab Usa Inc. Low dose gas hydrate inhibitor compositions
US9988568B2 (en) 2015-01-30 2018-06-05 Ecolab Usa Inc. Use of anti-agglomerants in high gas to oil ratio formations
BR112017023709A2 (pt) 2015-05-11 2018-07-17 Akzo Nobel Chemicals Int Bv uso de composto que contém nitrogênio ativo na superfície, método de inibição da aglomeração de hidratos de gás em condutores, e antiaglomerante para hidratos de gás
US10213757B1 (en) 2015-10-23 2019-02-26 Tetra Technologies, Inc. In situ treatment analysis mixing system
US10641083B2 (en) 2016-06-02 2020-05-05 Baker Hughes, A Ge Company, Llc Method of monitoring fluid flow from a reservoir using well treatment agents
US10413966B2 (en) 2016-06-20 2019-09-17 Baker Hughes, A Ge Company, Llc Nanoparticles having magnetic core encapsulated by carbon shell and composites of the same
BR112019008566B1 (pt) 2017-02-28 2023-01-17 Huntsman Petrochemical Llc Composição, e, composição de inibidor de hidrato de gás referência cruzada para pedido relacionado
FR3066198B1 (fr) 2017-05-09 2020-02-28 Arkema France Composition permettant de retarder la formation d'hydrates de gaz
US12060523B2 (en) 2017-07-13 2024-08-13 Baker Hughes Holdings Llc Method of introducing oil-soluble well treatment agent into a well or subterranean formation
US11254861B2 (en) 2017-07-13 2022-02-22 Baker Hughes Holdings Llc Delivery system for oil-soluble well treatment agents and methods of using the same
EP3704206A1 (en) 2017-11-03 2020-09-09 Baker Hughes Holdings Llc Treatment methods using aqueous fluids containing oil-soluble treatment agents
WO2020159519A1 (en) * 2019-01-31 2020-08-06 Multi-Chem Group, Llc Low dosage hydrate inhibitor
FR3092331A1 (fr) 2019-02-06 2020-08-07 Arkema France Composition pour prévenir l'agglomération d'hydrates de gaz
US10961444B1 (en) 2019-11-01 2021-03-30 Baker Hughes Oilfield Operations Llc Method of using coated composites containing delayed release agent in a well treatment operation

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770055A (en) * 1969-01-10 1973-11-06 Marathon Oil Co Film forming hydrazine-containing corrosion inhibitor
US4016932A (en) * 1975-12-24 1977-04-12 Texaco Inc. Surfactant oil recovery method for use in high temperature formations containing water having high salinity and hardness
US4061580A (en) * 1976-09-08 1977-12-06 The Lubrizol Corporation Thickened aqueous compositions for well treatment
US4129508A (en) * 1977-10-13 1978-12-12 The Lubrizol Corporation Demulsifier additive compositions for lubricants and fuels and concentrates containing the same
US4456067A (en) * 1981-04-03 1984-06-26 Marathon Oil Company Process for inhibiting hydrate formation in producing gas wells
US4424866A (en) * 1981-09-08 1984-01-10 The United States Of America As Represented By The United States Department Of Energy Method for production of hydrocarbons from hydrates
US4384951A (en) * 1981-12-02 1983-05-24 Texaco Canada Resources, Ltd. Demulsification of bitumen emulsions using polyureas
US4420414A (en) * 1983-04-11 1983-12-13 Texaco Inc. Corrosion inhibition system
GB8331546D0 (en) * 1983-11-25 1984-01-04 Exxon Research Engineering Co Polymeric compositions
FR2567043B1 (fr) * 1984-07-04 1988-05-20 Inst Francais Du Petrole Procede et dispositif utilisables notamment pour laver et desorber des produits solides contenant des hydrocarbures
US4547304A (en) * 1984-08-30 1985-10-15 Texaco, Inc. Nonfuming solder cleansing and fusing fluids
US4597779A (en) * 1985-02-27 1986-07-01 Shell Oil Company Process for inhibiting hydrates while producing moist CO2 from subterranean reservoirs
US4602920A (en) * 1985-03-29 1986-07-29 Shell Western E&P Inc. Process for inhibiting hydrates with inorganic electrolytes while producing moist CO2 from subterranean reservoirs
US4589434A (en) * 1985-06-10 1986-05-20 Exxon Production Research Co. Method and apparatus to prevent hydrate formation in full wellstream pipelines
FR2609648B1 (fr) * 1987-01-16 1990-12-14 Total France Agent desemulsifiant et antisalissure apte a separer des melanges eau-hydrocarbures, eventuellement mis en emulsion, et applications de cet agent
US4804485A (en) * 1987-05-08 1989-02-14 Pennwalt Corporation Polyalkyleneoxyamine catalysts for dialkyl disulfides and/or polysulfides used in dissolving sulfur
FR2625527B1 (fr) * 1987-12-30 1995-12-01 Inst Francais Du Petrole Procede de transport d'un fluide formant des hydrates
FR2625548B1 (fr) * 1987-12-30 1990-06-22 Inst Francais Du Petrole Procede pour retarder la formation et/ou reduire la tendance a l'agglomeration des hydrates
US4883580A (en) * 1988-06-01 1989-11-28 Betz Laboratories, Inc. Methods for deactivating iron in hydrocarbon fluids
US5076364A (en) * 1990-03-30 1991-12-31 Shell Oil Company Gas hydrate inhibition
US5260268A (en) * 1991-07-18 1993-11-09 The Lubrizol Corporation Methods of drilling well boreholes and compositions used therein
US5171420A (en) * 1991-09-09 1992-12-15 Betz Laboratories, Inc. Method for controlling fouling deposit formation in a liquid hydrocarbonaceous medium
FR2691503B1 (fr) * 1992-05-20 1997-07-25 Inst Francais Du Petrole Procede pour le traitement et le transport d'un gaz naturel sortant d'un puits de gaz.
WO1993025798A1 (en) * 1992-06-11 1993-12-23 Shell Internationale Research Maatschappij B.V. A method for inhibiting gas hydrate formation
US5432292A (en) * 1992-11-20 1995-07-11 Colorado School Of Mines Method for controlling clathrate hydrates in fluid systems
US5491269A (en) * 1994-09-15 1996-02-13 Exxon Production Research Company Method for inhibiting hydrate formation
US6025302A (en) * 1998-05-18 2000-02-15 Bj Services Company Quaternized polyether amines as gas hydrate inhibitors

Also Published As

Publication number Publication date
NO972680L (no) 1997-06-11
GB9712026D0 (en) 1997-08-06
US6331508B1 (en) 2001-12-18
GB2311076B (en) 1999-10-06
US5741758A (en) 1998-04-21
AU7384296A (en) 1997-04-30
WO1997013824A1 (en) 1997-04-17
GB2311076A (en) 1997-09-17
NO972680D0 (no) 1997-06-11

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