CA2570953C - Fluide et methode de fracturation de formations souterraines - Google Patents

Fluide et methode de fracturation de formations souterraines Download PDF

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Publication number
CA2570953C
CA2570953C CA2570953A CA2570953A CA2570953C CA 2570953 C CA2570953 C CA 2570953C CA 2570953 A CA2570953 A CA 2570953A CA 2570953 A CA2570953 A CA 2570953A CA 2570953 C CA2570953 C CA 2570953C
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CA
Canada
Prior art keywords
fracturing fluid
polymer
delayed
fracturing
borate
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.)
Expired - Fee Related
Application number
CA2570953A
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English (en)
Other versions
CA2570953A1 (fr
Inventor
Bill O'neil
Brian Walker
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.)
Trican Well Service Ltd
Original Assignee
Trican Well Service Ltd
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 Trican Well Service Ltd filed Critical Trican Well Service Ltd
Priority to CA2570953A priority Critical patent/CA2570953C/fr
Publication of CA2570953A1 publication Critical patent/CA2570953A1/fr
Application granted granted Critical
Publication of CA2570953C publication Critical patent/CA2570953C/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C08L5/14—Hemicellulose; Derivatives thereof
    • 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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/66—Compositions based on water or polar solvents
    • C09K8/68—Compositions based on water or polar solvents containing organic compounds
    • C09K8/685—Compositions based on water or polar solvents containing organic compounds containing cross-linking agents
    • 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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/70—Compositions for forming crevices or fractures characterised by their form or by the form of their components, e.g. foams
    • C09K8/706—Encapsulated breakers
    • 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
    • C09K2208/26—Gel breakers other than bacteria or enzymes

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  • 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)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Colloid Chemistry (AREA)

Abstract

On décrit un liquide pour fracturer des formations souterraines et une méthode dutilisation. Le liquide de fracturation est constitué dun polymère (gomme de guar ou un dérivé de guar) comme agent gélifiant, un tampon, un agent de réticulation différé au borate (minéraux de borate peu solubles) et un tampon à pH élevé. Lors du mélange, le liquide de fracturation possède un faible pH initial pour une hydratation rapide du polymère (et le borate ne réagit pas), permettant une faible pression de friction tubulaire en raison de la faible viscosité. Toutefois, le liquide de fracturation permet un lent changement du pH dun faible pH à un pH plus élevé, où lion borate existe et est disponible pour réticuler et causer la gélification du polymère.
CA2570953A 2006-12-12 2006-12-12 Fluide et methode de fracturation de formations souterraines Expired - Fee Related CA2570953C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2570953A CA2570953C (fr) 2006-12-12 2006-12-12 Fluide et methode de fracturation de formations souterraines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2570953A CA2570953C (fr) 2006-12-12 2006-12-12 Fluide et methode de fracturation de formations souterraines

Publications (2)

Publication Number Publication Date
CA2570953A1 CA2570953A1 (fr) 2008-06-12
CA2570953C true CA2570953C (fr) 2014-11-25

Family

ID=39521244

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2570953A Expired - Fee Related CA2570953C (fr) 2006-12-12 2006-12-12 Fluide et methode de fracturation de formations souterraines

Country Status (1)

Country Link
CA (1) CA2570953C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO2185792T3 (fr) 2007-08-03 2018-06-16

Also Published As

Publication number Publication date
CA2570953A1 (fr) 2008-06-12

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Legal Events

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EEER Examination request
MKLA Lapsed

Effective date: 20191212

MKLA Lapsed

Effective date: 20191212