AR247911A1 - Liquidos de arrastre de los materiales arrancados en las perforaciones, libres de aceites minerales y adecuados para la explotacion mar adentro de yacimientos de petroleo y/o gas - Google Patents

Liquidos de arrastre de los materiales arrancados en las perforaciones, libres de aceites minerales y adecuados para la explotacion mar adentro de yacimientos de petroleo y/o gas

Info

Publication number
AR247911A1
AR247911A1 AR89315714A AR31571489A AR247911A1 AR 247911 A1 AR247911 A1 AR 247911A1 AR 89315714 A AR89315714 A AR 89315714A AR 31571489 A AR31571489 A AR 31571489A AR 247911 A1 AR247911 A1 AR 247911A1
Authority
AR
Argentina
Prior art keywords
oil
alkaline
monocarboxylic acids
gas recovery
drilling fluids
Prior art date
Application number
AR89315714A
Other languages
English (en)
Original Assignee
Henkel Kgaa
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6369495&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AR247911(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Henkel Kgaa filed Critical Henkel Kgaa
Application granted granted Critical
Publication of AR247911A1 publication Critical patent/AR247911A1/es

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02Well-drilling compositions
    • C09K8/32Non-aqueous well-drilling compositions, e.g. oil-based
    • C09K8/34Organic liquids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Lubricants (AREA)
  • Earth Drilling (AREA)
  • Treatment Of Sludge (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)

Abstract

LIQUIDOS DE ARRASTRE DE LOS MATERIALES ARRANCADOS EN LAS PERFORACIONES, ADECUADOS PARA LA EXPLOTACION MAR ADENTRO DE YACIMIENTOS DE PETROLEO Y/O GAS SIN CAUSAR PROBLEMAS ECOLOGICOS, DEL TIPO DE EMULSIONES INVERSAS QUE EN UNA FASE ACEITOSA, CONTINUA, CON UN FASE ACUOSA, DISPERSA, JUNTO CON EMULSIONANTES, ESPESANTES, CARGAS, ADITIVOS CONTRA PERDIDA DE FLUIDO, RESERVAS ALCALINAS Y OTROS ADITIVOS USUALES, EN DONDE EN UN LIQUIDO DE ARRASTRE CONVENCIONAL, LOS ACEITES MINERALES DE LA FASE ACEITOSA CONTINUA ESTAN SUSTITUIDOS POR ACEITES DE ESTERES, CAPACES DE FLUIR Y DE SER BOMBEADOS ATEMPERATURAS ENTRE LA AMBIENTE Y 0*C, Y CONSTITUIDOS POR ESTERES DE ALCOHOLES MONOFUNCIONALES FORMADOS EN MAS DEL 50% EN PESO CON ACIDOS MONOCARBOXILICOS, MONO Y/O POLIOLEFINICOS, Y EL RESTO CONOTROS ACIDOS MONOCARBOXILICOS, Y CON PH LIGERAMENTE ALCALINO, SIN CONTENER EN CALIDAD DE RESERVA ALCALINA, CON BASES HIDROFILAS FUERTES, MANTENIENDOSE UN EVENTUAL AGREGADO DE HIDROXIDO DE CALCIOEN UN < 5, 6 GRAMOS POR LITRO DE LIQUIDO DE ARRASTRE.
AR89315714A 1988-12-19 1989-12-19 Liquidos de arrastre de los materiales arrancados en las perforaciones, libres de aceites minerales y adecuados para la explotacion mar adentro de yacimientos de petroleo y/o gas AR247911A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3842659A DE3842659A1 (de) 1988-12-19 1988-12-19 Verwendung ausgewaehlter esteroele in bohrspuelungen insbesondere zur off-shore-erschliessung von erdoel- bzw. erdgasvorkommen (i)

Publications (1)

Publication Number Publication Date
AR247911A1 true AR247911A1 (es) 1995-04-28

Family

ID=6369495

Family Applications (1)

Application Number Title Priority Date Filing Date
AR89315714A AR247911A1 (es) 1988-12-19 1989-12-19 Liquidos de arrastre de los materiales arrancados en las perforaciones, libres de aceites minerales y adecuados para la explotacion mar adentro de yacimientos de petroleo y/o gas

Country Status (22)

Country Link
EP (2) EP0374671B1 (es)
AR (1) AR247911A1 (es)
AT (1) ATE103627T1 (es)
AU (1) AU639219C (es)
BR (1) BR8907835A (es)
CA (1) CA2006010C (es)
DE (2) DE3842659A1 (es)
DK (1) DK170786B1 (es)
ES (1) ES2061909T3 (es)
GE (1) GEP20001918B (es)
IE (1) IE65152B1 (es)
MX (1) MX174181B (es)
MY (1) MY108504A (es)
NO (1) NO171562B (es)
NZ (1) NZ231827A (es)
PT (1) PT92597B (es)
RO (1) RO111579B1 (es)
RU (1) RU2044025C1 (es)
TJ (1) TJ195R3 (es)
TR (1) TR24786A (es)
WO (1) WO1990006980A1 (es)
ZA (1) ZA899693B (es)

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5083622A (en) * 1988-03-14 1992-01-28 Shell Oil Company Method for drilling wells
US5085282A (en) * 1988-03-14 1992-02-04 Shell Oil Company Method for drilling a well with emulsion drilling fluids
US5072794A (en) * 1988-09-30 1991-12-17 Shell Oil Company Alcohol-in-oil drilling fluid system
US5260269A (en) * 1989-10-12 1993-11-09 Shell Oil Company Method of drilling with shale stabilizing mud system comprising polycyclicpolyetherpolyol
US5058679A (en) * 1991-01-16 1991-10-22 Shell Oil Company Solidification of water based muds
US5423379A (en) * 1989-12-27 1995-06-13 Shell Oil Company Solidification of water based muds
US5076364A (en) * 1990-03-30 1991-12-31 Shell Oil Company Gas hydrate inhibition
US5076373A (en) * 1990-03-30 1991-12-31 Shell Oil Company Drilling fluids
DE4012105A1 (de) * 1990-04-14 1991-10-17 Henkel Kgaa Verwendung von hydriertem rizinusoel als viskositaetsbildner in oelbasierten bohrspuelsystems
DE4018228A1 (de) * 1990-06-07 1991-12-12 Henkel Kgaa Fliessfaehige bohrlochbehandlungsmittel auf basis von kohlensaeurediestern
DE4019266A1 (de) * 1990-06-16 1992-01-23 Henkel Kgaa Fliessfaehige bohrlochbehandlungsmittel auf basis von polycarbonsaeureestern
DE4024658A1 (de) * 1990-08-03 1992-04-16 Henkel Kgaa Verwendung oberflaechenaktiver alkylglycosidverbindungen in wasser- und oel-basierten bohrspuelungen und anderen bohrlochbehandlungsmitteln
US5508258A (en) * 1990-08-03 1996-04-16 Henkel Kommanditgesellschaft Auf Aktien Use of surface-active alpha-sulfo-fatty acid di-salts in water and oil based drilling fluids and other drill-hole treatment agents
GB2251447A (en) * 1991-01-04 1992-07-08 Exxon Production Research Co Invert emulsion for use in a drilling fluid
US5302728A (en) * 1991-03-19 1994-04-12 Shell Oil Company Polycondensation of phenolic hydroxyl-containing compounds and polyhydric alcohols and thermal condensation to form polyethercyclipolyols
US5233055A (en) * 1991-03-19 1993-08-03 Shell Oil Company Copolymerization of polyethercyclicpolyols with epoxy resins
US5371244A (en) * 1991-03-19 1994-12-06 Shell Oil Company Polycondensation of dihydric alcohols and polyhydric alcohols and thermal condensation to form polyethercyclicpolyols
US5338870A (en) * 1991-03-19 1994-08-16 Shell Oil Company Thermal condensation of polyhydric alcohols to form polyethercyclicpolyols
DE4200502A1 (de) * 1992-01-13 1993-07-15 Henkel Kgaa Verbesserte entsorgung von kontaminiertem bohrklein aus geologischen bohrungen mit mineraloel-enthaltenden bohrspuelsystemen
DE4218243C2 (de) * 1992-06-03 1994-04-28 Cognis Bio Umwelt Verbesserte Nährstoffgemische für die Bioremediation verschmutzter Böden und Gewässer
US5286882A (en) * 1992-10-13 1994-02-15 Shell Oil Company Polyethercyclicpolyols from epihalohydrins, polyhydric alcohols and metal hydroxides or epoxy alcohol and optionally polyhydric alcohols with addition of epoxy resins
US5428178A (en) * 1992-10-13 1995-06-27 Shell Oil Company Polyethercyclipolyols from epihalohydrins, polyhydric alcohols, and metal hydroxides or epoxy alcohols and optionally polyhydric alcohols with thermal condensation
US5371243A (en) * 1992-10-13 1994-12-06 Shell Oil Company Polyethercyclicpolyols from epihalohydrins, polyhydric alcohols, and metal hydroxides
USH1611H (en) * 1993-11-04 1996-11-05 M-I Drilling Fluids Company Glycols as internal phase in oil well drilling fluids
GB9324834D0 (en) * 1993-12-03 1994-01-19 Exxon Chemical Patents Inc Drilling fluid
GB9406057D0 (en) * 1994-03-26 1994-05-18 Univ Heriot Watt Drilling mud
US5776865A (en) * 1994-05-25 1998-07-07 Shell Oil Company Emulsifiable oil
DE4420455A1 (de) * 1994-06-13 1995-12-14 Henkel Kgaa Lineare alpha-Olefine enthaltende fließfähige Bohrlochbehandlungsmittel insbesondere entsprechende Bohrspülungen
DE4432841A1 (de) 1994-09-15 1996-03-21 Hoechst Ag Verwendung vn Acetal enthaltenden Mischungen
US6291405B1 (en) 1995-09-11 2001-09-18 M-I Llc Glycol based drilling fluid
DE19546911A1 (de) 1995-12-15 1997-06-19 Henkel Kgaa Neue wäßrig-quellfähige Zubereitungen von Guar und Guarderivaten in oleophilen Flüssigkeiten und ihre Verwendung
US5905061A (en) * 1996-08-02 1999-05-18 Patel; Avind D. Invert emulsion fluids suitable for drilling
US6589917B2 (en) 1996-08-02 2003-07-08 M-I Llc Invert emulsion drilling fluids and muds having negative alkalinity and elastomer compatibility
TW354352B (en) * 1996-10-30 1999-03-11 Henkel Kgaa A process for easier cleaning on the basis of water/oil inversion emulifier
DE19643857A1 (de) 1996-10-30 1998-05-07 Henkel Kgaa Verwendung biologisch abbaubarer Alkoxylierungsprodukte zum Reinigen von Bohrlöchern, Bohrgeräten oder Bohrklein
US6022833A (en) * 1996-10-30 2000-02-08 Henkel Kommanditgesellschaft Auf Aktien Multicomponent mixtures for use in geological exploration
DE19647565A1 (de) 1996-11-18 1998-05-20 Henkel Kgaa Mehrphasige Schmiermittelkonzentrate für den Einsatz in wasserbasierten Systemen aus dem Bereich der Erdreicherbohrung
DE19649285A1 (de) 1996-11-28 1998-06-04 Henkel Kgaa Verfahren zum Schutz von Metalloberflächen gegenüber Korrosion in flüssigen oder gasförmigen Medien
US6793025B2 (en) 1998-01-08 2004-09-21 M-I L. L. C. Double emulsion based drilling fluids
US6405809B2 (en) 1998-01-08 2002-06-18 M-I Llc Conductive medium for openhold logging and logging while drilling
US6029755A (en) * 1998-01-08 2000-02-29 M-I L.L.C. Conductive medium for openhole logging and logging while drilling
US6308788B1 (en) 1998-01-08 2001-10-30 M-I Llc Conductive medium for openhole logging and logging while drilling
US5990050A (en) * 1998-01-08 1999-11-23 M-I L.L.C. Water soluble invert emulsions
FR2781498B1 (fr) * 1998-07-21 2002-06-28 Elf Exploration Prod Procede d'utilisation des boues de forage biodegradables
DE19852971A1 (de) 1998-11-17 2000-05-18 Cognis Deutschland Gmbh Schmiermittel für Bohrspülungen
US6828279B2 (en) 2001-08-10 2004-12-07 M-I Llc Biodegradable surfactant for invert emulsion drilling fluid
DE10243312A1 (de) 2002-09-18 2004-04-01 Cognis Deutschland Gmbh & Co. Kg Bohrlochbehandlungsmittel mit niedrig-toxischer Ölphase
DE10334441A1 (de) 2003-07-29 2005-02-17 Cognis Deutschland Gmbh & Co. Kg Bohrlochbehandlungsmittel, enthaltend Ethercarbonsäuren
DE102004034141A1 (de) 2004-07-15 2006-02-09 Cognis Ip Management Gmbh Verwendung von Lithiumsalzen von Fettalkoholsulfaten zum Reinigen von Bohrlöchern, Bohrgeräten oder Bohrklein
EP2041236A1 (en) 2006-06-26 2009-04-01 Bp Exploration Operating Company Limited Wellbore fluid
EP2036964A1 (de) 2007-09-14 2009-03-18 Cognis Oleochemicals GmbH Verdicker für ölbasierte Bohrspülmittel
EP2036963A1 (de) 2007-09-14 2009-03-18 Cognis Oleochemicals GmbH Schmiermitteladditive für Bohrspülmittel
EP2036962A1 (de) 2007-09-14 2009-03-18 Cognis Oleochemicals GmbH Additive für wasserbasierte Bohrspülmittel
EP2053111B1 (en) 2007-10-24 2016-12-07 Emery Oleochemicals GmbH Drilling composition, process for its preparation and applications thereof
DE102008009368A1 (de) 2008-02-14 2009-08-20 Cognis Oleochemicals Gmbh Verfahren zur Herstellung einer organischen Zusammensetzung beinhaltend einen N-Nonylether
DE102008009369A1 (de) 2008-02-14 2009-08-20 Cognis Oleochemicals Gmbh Verfahren zur Herstellung einer organischen Zusammensetzung beinhaltend einen N-Nonylester
DE102008008251A1 (de) 2008-02-08 2009-08-20 Cognis Oleochemicals Gmbh Vernetzte Glycerin- oder Oligoglycerinester und deren Verwendung als Additiv in Bohrspülungen
DE102008008250A1 (de) 2008-02-08 2009-08-20 Cognis Oleochemicals Gmbh Auf organischen Aminsulfaten basierende Reinigungsmittel für Bohreinrichtungen
EP2154224A1 (en) 2008-07-25 2010-02-17 Bp Exploration Operating Company Limited Method of carrying out a wellbore operation
DE102009014119A1 (de) 2009-03-24 2010-09-30 Emery Oleochemicals Gmbh Emulsionsbasierte Reinigungszusammensetzung für Ölfeldanwendungen
CN102459502B (zh) 2009-06-02 2014-04-02 切弗朗菲利浦化学公司 井眼流体添加剂及其制备方法
FR2953853B1 (fr) 2009-12-15 2013-02-08 Total Raffinage Marketing Composition lubrifiante biodegradable et son utilisation dans un fluide de forage notamment pour reservoirs tres enfouis
DE102009060865A1 (de) 2009-12-30 2011-07-07 Emery Oleochemicals GmbH, 40589 Ester aus festen Polyolen und ungesättigten Carbonsäuren
US8563482B2 (en) 2010-09-22 2013-10-22 Saudi Arabian Oil Company Environment friendly base fluid to replace the toxic mineral oil-based base fluids
EA201300614A1 (ru) 2010-11-25 2013-12-30 Бп Эксплорейшн Оперейтинг Компани Лимитед Уплотнение
EP2707451B1 (en) 2011-05-12 2015-03-25 BP Exploration Operating Company Limited Method of carrying out a wellbore operation
US9238783B2 (en) 2012-11-20 2016-01-19 Chevron U.S.A. Inc. Monoester-based lubricants and methods of making same
US9115303B2 (en) 2012-11-20 2015-08-25 Chevron U.S.A. Inc. Biologically-derived monoesters as drilling fluids
US9115556B2 (en) 2012-11-20 2015-08-25 Chevron U.S.A. Inc. Method of using biologically-derived monoesters as drilling fluids
US9115326B2 (en) 2012-11-20 2015-08-25 Chevron U.S.A. Inc. Monoester-based lubricants and methods of making same
WO2015027032A1 (en) * 2013-08-22 2015-02-26 Chevron U.S.A. Inc. Biologically-derived monoesters as drilling fluids
MX2016001760A (es) * 2013-08-22 2016-06-02 Chevron Usa Inc Metodos de uso de monoesteres derivados biologicamente como fluidos de perforacion.
EP2848720B1 (en) 2013-09-12 2016-03-02 3M Innovative Properties Company Use of a lubricant in a mounting mat and method for making such a mat
US9834718B2 (en) 2014-05-06 2017-12-05 Saudi Arabian Oil Company Ecofriendly lubricating additives for water-based wellbore drilling fluids
BR102015015617B1 (pt) 2015-06-26 2022-10-11 Oxiteno S.A. Indústria E Comércio Composição para fluidos de perfuração com fase oleosa baseada em diésteres
WO2019147515A1 (en) 2018-01-29 2019-08-01 Exxonmobil Chemical Patents Inc. Anaerobically biodegradable fluids for drilling applications
EP3763922A1 (en) 2019-07-09 2021-01-13 3M Innovative Properties Company Mounting mat for use in pollution control devices
US11352545B2 (en) 2020-08-12 2022-06-07 Saudi Arabian Oil Company Lost circulation material for reservoir section
EP4379197A1 (en) 2022-11-30 2024-06-05 3M Innovative Properties Company Zero binder polycrystalline mounting mat with improved production handing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2843473A1 (de) * 1978-10-05 1980-04-17 Bayer Ag Lactonmodifizierte esteroele
US4374737A (en) * 1980-01-14 1983-02-22 Dana E. Larson Nonpolluting drilling fluid composition
US4631136A (en) * 1985-02-15 1986-12-23 Jones Iii Reed W Non-polluting non-toxic drilling fluid compositions and method of preparation
DE3903784A1 (de) * 1989-02-09 1990-08-16 Henkel Kgaa Monocarbonsaeure-methylester in invert-bohrspuelschlaemmen
DE3907391A1 (de) * 1989-03-08 1990-09-13 Henkel Kgaa Verwendung ausgewaehlter esteroele niederer carbonsaeuren in bohrspuelungen
DE3907392A1 (de) * 1989-03-08 1990-09-13 Henkel Kgaa Ester von carbonsaeuren mittlerer kettenlaenge als bestnadteil der oelphase in invert-bohrspuelschlaemmen

Also Published As

Publication number Publication date
IE65152B1 (en) 1995-10-04
BR8907835A (pt) 1991-10-22
ATE103627T1 (de) 1994-04-15
ZA899693B (en) 1990-08-29
GEP20001918B (en) 2000-01-05
NO912337D0 (no) 1991-06-17
CA2006010C (en) 2004-06-29
MY108504A (en) 1996-10-31
CA2006010A1 (en) 1990-06-19
EP0448579A1 (de) 1991-10-02
NO912337L (no) 1991-06-17
TR24786A (tr) 1992-05-01
AU639219C (en) 2003-11-13
EP0374671A1 (de) 1990-06-27
MX174181B (es) 1994-04-27
RU2044025C1 (ru) 1995-09-20
TJ195R3 (en) 1998-10-28
ES2061909T3 (es) 1994-12-16
WO1990006980A1 (de) 1990-06-28
EP0374671B1 (de) 1994-03-30
NZ231827A (en) 1991-12-23
DE3842659A1 (de) 1990-06-28
IE894056L (en) 1990-06-19
DK170786B1 (da) 1996-01-15
RO111579B1 (ro) 1996-11-29
PT92597B (pt) 1995-09-12
NO171562B (no) 1992-12-21
DK117591A (da) 1991-08-13
DE58907349D1 (de) 1994-05-05
PT92597A (pt) 1990-06-29
AU4655189A (en) 1990-07-10
DK117591D0 (da) 1991-06-18
AU639219B2 (en) 1993-07-22

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