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1. WO2022010502 - STIMULI RESPONSIVE POLYMERS FOR LOST CIRCULATION APPLICATIONS

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Publication Number WO/2022/010502
Publication Date 13.01.2022
International Application No. PCT/US2020/042798
International Filing Date 20.07.2020
IPC
C09K 8/44 2006.1
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
42Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
44containing organic binders only
E21B 33/13 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
33Sealing or packing boreholes or wells
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
CPC
C08F 20/34
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
20Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
02Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
10Esters
34Esters containing nitrogen ; , e.g. N,N-dimethylaminoethyl (meth)acrylate
C08L 33/14
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
33Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
04Homopolymers or copolymers of esters
14of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
C09K 8/5083
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
50Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
504Compositions based on water or polar solvents
506containing organic compounds
508macromolecular compounds
5083obtained by reactions only involving carbon-to-carbon unsaturated bonds
C09K 8/512
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
50Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
504Compositions based on water or polar solvents
506containing organic compounds
508macromolecular compounds
512containing cross-linking agents
Applicants
  • HALLIBURTON ENERGY SERVICES, INC. [US]/[US]
Inventors
  • KADAM, Sunita Sameer
  • SHUMWAY, William Walter
  • PATIL, Rahul Chandrakant
Agents
  • TUMEY, Corey S.
Priority Data
16/923,92608.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) STIMULI RESPONSIVE POLYMERS FOR LOST CIRCULATION APPLICATIONS
(FR) POLYMÈRES SENSIBLES AUX STIMULI POUR DES APPLICATIONS CONTRE LES PERTES DE CIRCULATION
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Abstract
(EN) A method is disclosed for mitigating a lost circulation zone. The method may include providing a lost circulation treatment composition that may include an acid responsive polymer that may include at least one monomer, at least one comonomer, and at least one crosslinker; a carbonate-based solvent; and a carrier fluid that may include water. The method may also include introducing the lost circulation treatment composition into a wellbore within a subterranean formation, wherein the subterranean formation may include the lost circulation zone; placing the lost circulation treatment composition into the lost circulation zone, and hydrolyzing the carbonate-based solvent to generate carbon dioxide.
(FR) Est divulgué un procédé de réduction d'une zone à pertes de circulation. Le procédé peut consiste à utiliser une composition de traitement des pertes de circulation qui peut comprendre un polymère sensible aux acides qui peut comprendre au moins un monomère, au moins un comonomère et au moins un agent de réticulation ; un solvant à base de carbonate ; et un fluide support qui peut comprendre de l'eau. Le procédé peut également consister à introduire la composition de traitement des pertes de circulation dans un puits de forage à l'intérieur d'une formation souterraine, la formation souterraine pouvant comprendre la zone à pertes de circulation ; à placer la composition de traitement des pertes de circulation dans la zone à pertes de circulation et à hydrolyser le solvant à base de carbonate pour générer du dioxyde de carbone.
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