CA2339101A1 - Wellbore fluids containing particulates having acid degradable acetal crosslinks - Google Patents

Wellbore fluids containing particulates having acid degradable acetal crosslinks Download PDF

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Publication number
CA2339101A1
CA2339101A1 CA002339101A CA2339101A CA2339101A1 CA 2339101 A1 CA2339101 A1 CA 2339101A1 CA 002339101 A CA002339101 A CA 002339101A CA 2339101 A CA2339101 A CA 2339101A CA 2339101 A1 CA2339101 A1 CA 2339101A1
Authority
CA
Canada
Prior art keywords
compound
hydroxyl groups
possessing
molecular weight
wellbore 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.)
Granted
Application number
CA002339101A
Other languages
French (fr)
Other versions
CA2339101C (en
Inventor
David Ballard
Christopher Alan Sawdon
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.)
MI LLC
Original Assignee
M-I L.L.C.
David Ballard
Christopher Alan Sawdon
Schlumberger Canada Limited
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 M-I L.L.C., David Ballard, Christopher Alan Sawdon, Schlumberger Canada Limited filed Critical M-I L.L.C.
Publication of CA2339101A1 publication Critical patent/CA2339101A1/en
Application granted granted Critical
Publication of CA2339101C publication Critical patent/CA2339101C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/84—Compositions based on water or polar solvents
    • C09K8/86—Compositions based on water or polar solvents containing organic compounds
    • C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/887—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch
    • C08B31/003—Crosslinking of starch
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch
    • C08B31/08—Ethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; 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
    • C09K8/02—Well-drilling compositions
    • C09K8/03—Specific additives for general use in well-drilling compositions
    • C09K8/035—Organic additives
    • 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
    • C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504—Compositions based on water or polar solvents
    • C09K8/506—Compositions based on water or polar solvents containing organic compounds
    • C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
    • 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
    • Y10S507/00—Earth boring, well treating, and oil field chemistry
    • Y10S507/922—Fracture fluid
    • 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
    • Y10S507/00—Earth boring, well treating, and oil field chemistry
    • Y10S507/925—Completion or workover fluid

Abstract

The present invention relates to a wellbore fluid comprising a particulate material composed of the reaction product of: A) one or more water soluble organic compound possessing a molecular weight of less than 30,000 and possessing at least two hydroxyl groups, and B) any other organic compound(s ) capable of forming acetal or hemiacetal cross-links with the hydroxyl groups of compound A. The invention relates also to the specific particulate materi al itself and to applications of the wellbore fluid of the invention for well processes such as drilling, under-reaming, completing, working over, sealing loss zones, sealing fractures, sealing cavities or other very high permeability conduits in a rock formation, or hydraulic fracturing to stimulate a hydrocarbon-producing zone.

Claims (12)

1. A wellbore fluid comprising a particulate material composed of the reaction product of A) one or more water soluble organic compound having possessing a molecular weight of less than 30,000 and possessing at least two hydroxyl groups and B) any other organic compound(s) capable of forming acetal or hemiacetal cross-links with the hydroxyl groups of compound A.
2. The wellbore fluid of claim 1 wherein hydroxyl compound (A) is selected from the class including monosaccharides, oligosaccharides, polysaccharides of molecular weight less than 30,000, glycerol, polyglycerols, erythritol, pentaerythritol, mannitol, sorbitol, glycols, polyalkylene glycols, and low molecular weight water soluble vinyl polymers possessing hydroxyl groups.
3. The wellbore fluid according to claim 1 or 2, wherein compound (B) is selected from the class including aliphatic aldehydes and dialdehydes having from 2 to 10 carbon atoms, and esters of propiolic acid wherein the alcohol farming the ester has from 1 to 8 carbon atoms.
4. The wellbore fluid according to any of the preceding claim, wherein 0.5-15%, dry weight of compound (A) and 95.5-85% of said compound (B) is reacted.
5. The wellbore fluid according to any of the preceding claim wherein the particulate material is the reaction product of dextrin and pentanedial.
6. Application of the wellbore fluid according to any of the preceding claim as any of the following well processes : drilling, under-reaming, completing, working over, sealing loss zones, sealing fractures, sealing cavities or other very high permeability conduits in a rock formation, or hydraulic fracturing to stimulate a hydrocarbon-producing zone
7. A process wherein after any of the well processes of claim 6, a low pH
fluid containing any acid or buffered solution of less than pH 6.0 is pumped into the producing zone segment of the wellbore to catalyse the decomposition of the particulate material of this invention.
8. A process wherein, after any of the well processes in Claims 6 or 7, the well is allowed to flow causing a drop in pH which catalyses the decomposition of the particulate solids of this invention permitting yet increased flow of produced fluids.
9. A particulate material composed of the reaction product of A) one or more water soluble organic compound having possessing a molecular weight of less than 30,000 and possessing at least two hydroxyl groups and B) any other organic compound(s) capable of forming acetal or hemiacetal cross-links with the hydroxyl groups of compound A.
10. The particulate material of claim 9, wherein the hydroxyl compound (A) is selected from the class including monosaccharides, oligosaccharides, polysaccharides of molecular weight less than 30,000, glycerol, polyglycerols, erythritol, pentaerythritol, mannitol, sorbitol, glycols, polyalkylene glycols, and low molecular weight water soluble vinyl polymers possessing hydroxyl groups.
11. The particulate material as in Claim 9 wherein the compound (B) is selected from the class including aliphatic aldehydes and dialdehydes having from 2 to 10 carbon atoms, and esters of propiolic acid wherein the alcohol forming the ester has from 1 to 8 carbon atoms.
12
CA002339101A 1998-07-30 1999-07-16 Wellbore fluids containing particulates having acid degradable acetal crosslinks Expired - Fee Related CA2339101C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9816479.1 1998-07-30
GB9816479A GB2340147A (en) 1998-07-30 1998-07-30 Wellbore fluid
PCT/EP1999/005329 WO2000006664A1 (en) 1998-07-30 1999-07-16 Wellbore fluid

Publications (2)

Publication Number Publication Date
CA2339101A1 true CA2339101A1 (en) 2000-02-10
CA2339101C CA2339101C (en) 2009-12-08

Family

ID=10836349

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002339101A Expired - Fee Related CA2339101C (en) 1998-07-30 1999-07-16 Wellbore fluids containing particulates having acid degradable acetal crosslinks

Country Status (11)

Country Link
US (1) US6710019B1 (en)
EP (1) EP1102826B1 (en)
AT (1) ATE282680T1 (en)
AU (1) AU757767B2 (en)
BR (1) BR9912595B1 (en)
CA (1) CA2339101C (en)
DE (1) DE69922012T8 (en)
GB (1) GB2340147A (en)
MX (1) MXPA01001214A (en)
NO (1) NO20010520L (en)
WO (1) WO2000006664A1 (en)

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DE69922012T2 (en) 2006-03-02
NO20010520D0 (en) 2001-01-30
DE69922012T8 (en) 2006-08-24
EP1102826A1 (en) 2001-05-30
CA2339101C (en) 2009-12-08
BR9912595B1 (en) 2009-01-13
EP1102826B1 (en) 2004-11-17
AU757767B2 (en) 2003-03-06
DE69922012D1 (en) 2004-12-23
GB2340147A (en) 2000-02-16
GB9816479D0 (en) 1998-09-23
NO20010520L (en) 2001-03-28
ATE282680T1 (en) 2004-12-15
MXPA01001214A (en) 2003-03-27
AU5506999A (en) 2000-02-21
WO2000006664A1 (en) 2000-02-10
US6710019B1 (en) 2004-03-23
BR9912595A (en) 2002-01-15

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