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1. WO1996004348 - DRILLING FLUID ADDITIVES FOR HYDRATE PRONE ENVIRONMENTS HAVING WATER-SENSITIVE MATERIALS, DRILLING FLUIDS MADE THEREOF, AND METHOD OF DRILLING HYDRATE PRONE ENVIRONMENTS HAVING WATER-SENSITIVE MATERIALS

Publication Number WO/1996/004348
Publication Date 15.02.1996
International Application No. PCT/US1995/009443
International Filing Date 26.07.1995
IPC
C09K 8/035 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
02Well-drilling compositions
03Specific additives for general use in well-drilling compositions
035Organic additives
C09K 8/12 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
02Well-drilling compositions
04Aqueous well-drilling compositions
06Clay-free compositions
12containing synthetic organic macromolecular compounds or their precursors
C09K 8/528 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
52Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
528inorganic depositions, e.g. sulfates or carbonates
C09K 8/88 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
60Compositions for stimulating production by acting on the underground formation
84Compositions based on water or polar solvents
86containing organic compounds
88macromolecular compounds
CPC
C09K 2208/22
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
2208Aspects relating to compositions of drilling or well treatment fluids
22Hydrates inhibition by using well treatment fluids containing inhibitors of hydrate formers
C09K 8/035
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
02Well-drilling compositions
03Specific additives for general use in well-drilling compositions
035Organic additives
C09K 8/12
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
02Well-drilling compositions
04Aqueous well-drilling compositions
06Clay-free compositions
12containing synthetic organic macromolecular compounds or their precursors
C09K 8/528
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
52Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
528inorganic depositions, e.g. sulfates or carbonates
C09K 8/882
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
60Compositions for stimulating production by acting on the underground formation
84Compositions based on water or polar solvents
86containing organic compounds
88macromolecular compounds
882obtained by reactions only involving carbon-to-carbon unsaturated bonds
Applicants
  • BAKER HUGHES INCORPORATED [US/US]; P.O. Box 4740 Houston, TX 77210-4740, US
Inventors
  • ALONSO-DEBOLT, Maria, A.; US
  • JARRETT, Michael, A.; US
Agents
  • ROWOLD, Carl, A. ; Baker Hughes Incorporated P.O. Box 4740 Houston, TX 77210-4740, US
Priority Data
08/282,73329.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DRILLING FLUID ADDITIVES FOR HYDRATE PRONE ENVIRONMENTS HAVING WATER-SENSITIVE MATERIALS, DRILLING FLUIDS MADE THEREOF, AND METHOD OF DRILLING HYDRATE PRONE ENVIRONMENTS HAVING WATER-SENSITIVE MATERIALS
(FR) ADDITIFS DE FLUIDE DE FORAGE POUR ENVIRONNEMENTS ENCLINS AUX FORMATIONS HYDRIQUES COMPORTANT DES MATERIAUX SENSIBLES A L'EAU, FLUIDES DE FORAGE CONTENANT LESDITS ADDITIFS ET PROCEDE DE FORAGE DANS LESDITS ENVIRONNEMENTS
Abstract
(EN)
Disclosed is a drilling fluid additive which includes a polymer component and a hydrate suppression component. Examples of the polymer component include polyvinylalcohol, polyvinylpyrrolidone, polymer of styrene sulfonic acid, cationic polymers, terpolymers of acrylamide, acrylate, acrylamide propane sulfonic acid, and polyvinylpyrrolidone copolymers. Examples of the hydrate suppression component broadly include alcohols and salts. Also disclosed is a water-based drilling fluid which, in addition to an aqueous component, includes the additive described above. Additionally disclosed is a method of drilling in a hydrate prone environment containing water-sensitive shales, clays and fines using the drilling fluid described above.
(FR)
Additif pour fluide de forage qui comporte un constituant polymère et un constituant de suppression hydrique. Le constituant polymère peut être choisi, entre autres, parmi alcool polyvinylique, polyvinylpyrrolidone, polymère styrène-acide sulfonique, polymères cationiques, terpolymères d'acrylamide, d'acrylate et d'acrylamide propane-acide sulfonique et copolymères de polyvinylpyrrolidone. Les exemples du constituant de suppression d'eau comprennent en gros des alcools et des sels. La présente invention concerne également un fluide de forage à base d'eau qui, en plus du constituant aqueux, comporte l'additif décrit ci-dessus. Un procédé de forage dans un environnement enclin aux formations hydriques constitué d'argiles, d'argiles litées et de fines sensibles à l'eau à l'aide du fluide de forage susmentionné est en outre décrit.
Also published as
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