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WO1989001491A1 - Fluide de base permettant la preparation de fluides utilisables dans l'exploitation de reservoirs de petrole - Google Patents

Fluide de base permettant la preparation de fluides utilisables dans l'exploitation de reservoirs de petrole Download PDF

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Publication number
WO1989001491A1
WO1989001491A1 PCT/NO1988/000063 NO8800063W WO8901491A1 WO 1989001491 A1 WO1989001491 A1 WO 1989001491A1 NO 8800063 W NO8800063 W NO 8800063W WO 8901491 A1 WO8901491 A1 WO 8901491A1
Authority
WO
WIPO (PCT)
Prior art keywords
base fluid
water
fluids
propanediol
fluid
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.)
Ceased
Application number
PCT/NO1988/000063
Other languages
English (en)
Inventor
Bjørn Arild ARDØ
Terje Johan TØMMERVIK
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.)
STIFTELSEN FOR INDUSTRIELL OG TEKNISK FORSKNING VE
Sintef AS
Original Assignee
STIFTELSEN FOR INDUSTRIELL OG TEKNISK FORSKNING VE
Sintef AS
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 STIFTELSEN FOR INDUSTRIELL OG TEKNISK FORSKNING VE, Sintef AS filed Critical STIFTELSEN FOR INDUSTRIELL OG TEKNISK FORSKNING VE
Publication of WO1989001491A1 publication Critical patent/WO1989001491A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C09K8/02—Well-drilling compositions
    • C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based
    • C09K8/34—Organic liquids

Definitions

  • Base fluid for the preparation of fluids applicable in connection with exploitation of petroleum reservoirs is
  • drilling fluid drilling mud
  • cement slurry cement slurry
  • completion fluid cement slurry
  • packer fluid perforation fluid
  • gravel packing fluid acidizing fluid and fracturing fluid.
  • These fluids comprise a base fluid normally constituting the main part of the total volume, added various components.
  • Water as used herein comprises either water from a natural source such as fresh water, brackish water or sea water, or water particularly purified by processes such as e.g. " filtration, ion exchange or distillation.
  • oil as used herein comprises crude oil or different fractions thereof, with or without modifications.
  • Typical products for the current uses comprise diesel oil ("Fuel oil No. 2") and particular low aromatic fractions, either mainly paraffinic or mainly naphthenic.
  • Rocks containing such minerals will show a tendency to swell on contact with water based liquid systems. This becomes to apparent in two different ways: swelling of the formation in the hole wall. - disintegration of drill cuttings during transport to the surface.
  • Water based fluid systems used in the completion, work- over and stimulation of hydrocarbon producing wells may further produce swelling of clay minerals in the adjacent formation. This may result in a reduction of the permeability of the formation and thus also the productivity of the well.
  • Oil based mud systems provide better stabilization of the hole wall. Further, the mud is usually better with respect to filtration control and properties at high temperatures.
  • Fluid systems based on oil or oil/water emulsions have in addition disadvantageous impact on the working environment, unfavourable safety aspects such as fire and explosion hazards.
  • oil based systems also comprise chemicals which may contribute to change the wetting preferences, of the formation close to the well in a negative sense in view of future productivity.
  • the objective of the invention is to provide an alternative base fluid for use in preparing different well liquids. This shall in certain connections provide an improvement as compared to existing fluid systems.
  • This objective is achieved by using as a base fluid for the di ferent functional fluid types 1,2-propanediol in an amount constituting 5-100% by volume and preferably in excess of 25% by volume and particularly ranging from 25 to 70% by volume of the total amount of basic liquid, the balance being water.
  • suitable additives are subsequently added to provide a functional liquid having the desired properties.
  • 1,2-propanediol is a clear, viscous liquid. It is slightly volatile and nearly odourless. 1,2-propanediol is hygroscopic and water miscible in all proportions. It is scarcely flammable, chemically and technically stable and considered as non-toxic. Further it is degradable in water.
  • the base fluid disclosed possesses properties requiringless amounts of additives to provide the desired rheology and activity within the fluid.
  • the benefits of the base fluid disclosed are the following:
  • Liquid systems prepared from the base fluid of the invention will be less toxic both with regard to the marine environment as well as to industrial hygiene.
  • a consequence of the above facts is that drill cuttings, drilled by a fluid of said basis will not require further cleaning before being discarded from offshore platforms. This implies that the need of equipment for such cleaning is eliminated and th ⁇ s provides economy as to purchase and operation of the equipment, as well as savings of space and weight on the platform.
  • said base fluid utilized for the different types of functional fluids will be simpler and require less equipment for preparation, maintenance, handling and storage.
  • the fluids prepared from said base fluid will entail less fire and explosion risk. Possible fires may be combatted by water.
  • Tests have been performed in order to elucidate properties of 1,2-propanediol as a basis in the preparation of well fluids. A description of the performed tests as well as the results achieved are presented in the following in the form of an example.
  • API standard API Specification for Oil-Well Drilling Fluid-Materials
  • API Spec 13A Eight Ed.
  • API RP 13B Ninth Ed., American Petroleum Institute, Dallas, May 1982
  • the rheology of the sample is measured at 40°C with a Fann VG-meter (Modell 35 SA 12 R) and a thermocup (Baroid) . After being left at ambient conditions for 18 hours, the sample is mixed for 1 minute with the same equipment, and viscosity and gel strength is determined.
  • PROPERTY Apparent viscosity, ⁇ A (mPa.s)
  • PROPERTY Plastic viscosity, ⁇ p (mPa.s)
  • PROPERTY Yield Point, YP (Pa)
  • PROPERTY Flow index, n (dimensionless)
  • PROPERTY Consistency index, K (Pa.s 11 )
  • PROPERTY Initial gel strength, G 0 (Pa)
  • PROPERTY Final gel strength, G 1O (Pa)
  • the gel strength of the samples also indicate that the bentonite is present in a dispersed state at low concentrations of 1,2-propanediol. This becomes dramatically apparent by the addition of brine. Apart from the size of the gel strength it is observed that it develops non-progressively at high concen ⁇ trations of 1,2-propanediol. This means that the values after 10 seconds and 10 minutes of quiescent, respectively, are approximately similar.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

Fluide de base se composant de 1,2-propanediol (glycol de propylène) qui facultativement mélangé avec d'autres fluides, peut être utilisé en tant que point de départ pour la production de divers fluides utilisés dans le forage, la complétion, le reconditionnement et la stimulation de puits forés pour des sources de pétrole. Ainsi on peut réduire le gonflement de minéraux argileux dans les roches pénétrées et éviter les conséquences dommageables à l'environnement, associées à l'utilisation d'autres fluides utilisés communément. Le fluide de base se compose de 5 à 100 %, de préférence de 25 à 70 % en volume d'eau.
PCT/NO1988/000063 1987-08-21 1988-08-18 Fluide de base permettant la preparation de fluides utilisables dans l'exploitation de reservoirs de petrole Ceased WO1989001491A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO87873531A NO873531L (no) 1987-08-21 1987-08-21 Basisvaeske for tilberedelse av vaesker for anvendelse ved utvinning av petroleumforekomster.
NO873531 1987-08-21

Publications (1)

Publication Number Publication Date
WO1989001491A1 true WO1989001491A1 (fr) 1989-02-23

Family

ID=19890178

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1988/000063 Ceased WO1989001491A1 (fr) 1987-08-21 1988-08-18 Fluide de base permettant la preparation de fluides utilisables dans l'exploitation de reservoirs de petrole

Country Status (3)

Country Link
AU (1) AU2269888A (fr)
NO (1) NO873531L (fr)
WO (1) WO1989001491A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391252A1 (fr) * 1989-04-07 1990-10-10 Henkel Kommanditgesellschaft auf Aktien Alcools oléophiles comme composants d'émulsions de forage inverses
WO1992014798A1 (fr) * 1991-02-23 1992-09-03 David Brankling Fluide de forage
EP0461584A3 (en) * 1990-06-11 1992-09-16 Baker Hughes Incorporated Non-hydrocarbon invert emulsion for use in well drilling operations
US5977031A (en) * 1996-08-02 1999-11-02 M-I L.L.C. Ester based invert emulsion drilling fluids and muds having negative alkalinity
US5990050A (en) * 1998-01-08 1999-11-23 M-I L.L.C. Water soluble invert emulsions
US6029755A (en) * 1998-01-08 2000-02-29 M-I L.L.C. Conductive medium for openhole logging and logging while drilling
US6291405B1 (en) 1995-09-11 2001-09-18 M-I Llc Glycol based drilling fluid
US6308788B1 (en) 1998-01-08 2001-10-30 M-I Llc Conductive medium for openhole logging and logging while drilling
US6589917B2 (en) 1996-08-02 2003-07-08 M-I Llc Invert emulsion drilling fluids and muds having negative alkalinity and elastomer compatibility
US6828279B2 (en) 2001-08-10 2004-12-07 M-I Llc Biodegradable surfactant for invert emulsion drilling fluid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3915875A1 (de) * 1989-05-16 1990-11-22 Henkel Kgaa Verwendung ausgewaehlter oleophiler alkohole in wasser-basierten bohrspuelungen vom o/w-emulsionstyp sowie entsprechende bohrspuelfluessigkeiten mit verbesserter oekologischer vertraeglichkeit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573960A (en) * 1949-04-22 1951-11-06 Union Oil Co Drilling fluid concentrates
US3639233A (en) * 1969-03-18 1972-02-01 Dresser Ind Well drilling
US4280915A (en) * 1977-06-23 1981-07-28 Nl Industries, Inc. Salt stable lubricant for water base drilling fluids
DD157467A1 (de) * 1981-03-19 1982-11-10 Manfred Roellig Zusaetze fuer bohrspuelungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573960A (en) * 1949-04-22 1951-11-06 Union Oil Co Drilling fluid concentrates
US3639233A (en) * 1969-03-18 1972-02-01 Dresser Ind Well drilling
US4280915A (en) * 1977-06-23 1981-07-28 Nl Industries, Inc. Salt stable lubricant for water base drilling fluids
DD157467A1 (de) * 1981-03-19 1982-11-10 Manfred Roellig Zusaetze fuer bohrspuelungen

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391252A1 (fr) * 1989-04-07 1990-10-10 Henkel Kommanditgesellschaft auf Aktien Alcools oléophiles comme composants d'émulsions de forage inverses
WO1990012070A1 (fr) * 1989-04-07 1990-10-18 Henkel Kommanditgesellschaft Auf Aktien Alcools oleophiles en tant que constituants de boues de forage inverses
AU624939B2 (en) * 1989-04-07 1992-06-25 Cognis Deutschland Gmbh & Co. Kg Oleophilic alcohols for use as a component of invert drilling-oil muds
EP0461584A3 (en) * 1990-06-11 1992-09-16 Baker Hughes Incorporated Non-hydrocarbon invert emulsion for use in well drilling operations
WO1992014798A1 (fr) * 1991-02-23 1992-09-03 David Brankling Fluide de forage
US6291405B1 (en) 1995-09-11 2001-09-18 M-I Llc Glycol based drilling fluid
US5977031A (en) * 1996-08-02 1999-11-02 M-I L.L.C. Ester based invert emulsion drilling fluids and muds having negative alkalinity
US6589917B2 (en) 1996-08-02 2003-07-08 M-I Llc Invert emulsion drilling fluids and muds having negative alkalinity and elastomer compatibility
US5990050A (en) * 1998-01-08 1999-11-23 M-I L.L.C. Water soluble invert emulsions
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
US6828279B2 (en) 2001-08-10 2004-12-07 M-I Llc Biodegradable surfactant for invert emulsion drilling fluid

Also Published As

Publication number Publication date
NO873531D0 (no) 1987-08-21
NO873531L (no) 1989-02-22
AU2269888A (en) 1989-03-09

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