CA2595978A1 - Methods and compositions relating to the hydrolysis of water-hydrolysable materials - Google Patents

Methods and compositions relating to the hydrolysis of water-hydrolysable materials Download PDF

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Publication number
CA2595978A1
CA2595978A1 CA002595978A CA2595978A CA2595978A1 CA 2595978 A1 CA2595978 A1 CA 2595978A1 CA 002595978 A CA002595978 A CA 002595978A CA 2595978 A CA2595978 A CA 2595978A CA 2595978 A1 CA2595978 A1 CA 2595978A1
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CA
Canada
Prior art keywords
water
treatment fluid
poly
miscible solvent
hydrolysable material
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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
CA002595978A
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French (fr)
Other versions
CA2595978C (en
Inventor
Bradley L. Todd
Karen Savery
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Halliburton Energy Services Inc
Original Assignee
Halliburton Energy Services, Inc.
Bradley L. Todd
Karen Savery
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Application filed by Halliburton Energy Services, Inc., Bradley L. Todd, Karen Savery filed Critical Halliburton Energy Services, Inc.
Publication of CA2595978A1 publication Critical patent/CA2595978A1/en
Application granted granted Critical
Publication of CA2595978C publication Critical patent/CA2595978C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C09K8/90—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
    • 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
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/06—Clay-free compositions
    • C09K8/08—Clay-free compositions containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
    • C09K8/10—Cellulose or 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
    • C09K8/52—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
    • 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
    • C09K8/72—Eroding chemicals, e.g. acids
    • C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
    • 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
    • C09K2208/18—Bridging agents, i.e. particles for temporarily filling the pores of a formation; Graded salts

Abstract

Treatments fluids relating to the hydrolysis of water-hydrolysable materials are provided. In one embodiment, provided is a treatment fluid that comprises an aqueous liquid, a water-miscible solvent, and a water-hydrolysable material. Also provided is a hydrolysis retarder composition that comprises an aqueous liquid and a water-miscible solvent.

Claims (20)

1. A treatment fluid comprising an aqueous liquid, a water-miscible solvent, and a water-hydrolysable material.
2. The treatment fluid of claim 1 wherein the water-miscible solvent comprises at least one of the following: an alcohol, a glycol, an ether, an ester, or a derivative thereof.
3. The treatment fluid of claim 1 wherein the water-miscible solvent comprises at least one of the following: methanol, a propylene glycol, an ethylene glycol, ethylene glycol monobutyl ether, a propylene carbonate, ethylene glycol monomethyl acetate, or a derivative thereof.
4. The treatment fluid of claim 1 wherein the water-miscible solvent is present in an amount sufficient to delay hydrolysis of the water-hydrolysable material.
5. The treatment fluid of claim 1 wherein the treatment fluid further comprises a gelling agent.
6. The treatment fluid of claim 5 wherein the gelling agent comprises at least one of the following: a biopolymer, a galactomannan gum, a modified cellulose, or a derivative thereof.
7. The treatment fluid of claim 5 wherein the gelling agent comprises a cellulose grafted with an allyl or a vinyl monomer.
8. The treatment fluid of claim 5 wherein at least a portion of the gelling agent is crosslinked.
9. The treatment fluid of claim 1 wherein the water-hydrolysable material is present in the treatment fluid in an amount in the range of from about 1% to about 15% by weight of the treatment fluid.
10. The treatment fluid of claim 1 wherein the water-hydrolysable material is capable of releasing an acid.
11. The treatment fluid of claim 1 wherein the water-hydrolysable material comprises at least one of the following: a degradable polymer, a lactide, a lactone, an ester, a dehydrated compound, or a derivative thereof.
12. The treatment fluid of claim 1 wherein the water-hydrolysable material comprises a poly(lactic acid).
13. The treatment fluid of claim 1 wherein the water-hydrolysable material comprises at least one of the following: a polysaccharide; a chitin; a chitosan; a protein; an aliphatic polyester; a poly(lactic acid); a poly(glycolide); a poly(.epsilon.-caprolactone); a poly(hydroxybutyrate); a poly(anhydride); an aliphatic polycarbonate; a poly(orthoester); a poly(amino acid); a poly(ethylene oxide); a polyphosphazene; a polyvinyl alcohol; or a copolymer thereof.
14. The treatment fluid of claim 1 wherein the water-hydrolysable material comprises a blend of poly(lactic acid) and a lactide.
15. A treatment fluid comprising:
an aqueous liquid, a water-miscible solvent, a water-hydrolysable material capable of releasing an acid, and a gelling agent comprising a cellulose grafted with an allyl or a vinyl monomer.
16. The treatment fluid of claim 15 wherein at least a portion of the gelling agent is crosslinked.
17. The treatment fluid of claim 15 wherein the cellulose grafted with an allyl or a vinyl monomer is hydroxyethyl cellulose grafted with vinyl phosphonic acid.
18. A hydrolysis retarder composition comprising an aqueous liquid, and a water-miscible solvent.
19. The composition of claim 18 wherein the water-miscible solvent comprises at least one of the following: an alcohol, a glycol, an ether, an ester, or a derivative thereof.
20. The composition of claim 18 wherein the water-miscible solvent is present in an amount sufficient to delay hydrolysis of the water-hydrolysable material.
CA2595978A 2005-01-28 2006-01-09 Methods and compositions relating to the hydrolysis of water-hydrolysable materials Expired - Fee Related CA2595978C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/046,652 US20060169182A1 (en) 2005-01-28 2005-01-28 Methods and compositions relating to the hydrolysis of water-hydrolysable materials
US11/046,652 2005-01-28
PCT/GB2006/000055 WO2006079777A1 (en) 2005-01-28 2006-01-09 Methods and compositions relating to the hydrolysis of water-hydrolysable materials

Publications (2)

Publication Number Publication Date
CA2595978A1 true CA2595978A1 (en) 2006-08-03
CA2595978C CA2595978C (en) 2010-08-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2595978A Expired - Fee Related CA2595978C (en) 2005-01-28 2006-01-09 Methods and compositions relating to the hydrolysis of water-hydrolysable materials

Country Status (3)

Country Link
US (2) US20060169182A1 (en)
CA (1) CA2595978C (en)
WO (1) WO2006079777A1 (en)

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