COMPOSITION AND METHOD FOR RECOVERING HYDROCARBON FLUIDS FROM A SUBTERRANEAN RESERVOIR
A composition comprising crosslinked expandable polymeric microparticles capable of hydrolysis at or below neutral pH and a method of modifying the permeability to water of a subterranean formation by introducing such compositions into the subterranean formation is disclosed and claimed. This invent...
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Format | Patent |
Language | English French |
Published |
02.06.2020
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Abstract | A composition comprising crosslinked expandable polymeric microparticles capable of hydrolysis at or below neutral pH and a method of modifying the permeability to water of a subterranean formation by introducing such compositions into the subterranean formation is disclosed and claimed. This invention further relates to compositions and methods for the recovery of hydrocarbon fluids from a subterranean reservoir or formation subjected to CO2 or CO2 Water Alternating Gas flooding at low pH and increases the mobilization and/or recovery rate of hydrocarbon fluids present m the subterranean formations.
La présente invention concerne une composition comprenant des microparticules polymères expansibles réticulées pouvant être hydrolysées à pH neutre ou en dessous et un procédé permettant de modifier la perméabilité à l'eau d'une formation souterraine par introduction desdites compositions dans la formation souterraine. La présente invention concerne en outre des compositions et des procédés permettant la récupération de fluides hydrocarbures à partir d'un réservoir souterrain ou d'une formation souterraine soumis(e) à une injection de CO2 ou à une injection alternée d'eau et de CO2 à bas pH et qui augmentent la mobilisation et/ou le taux de récupération de fluides hydrocarbures présents dans les formations souterraines. |
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AbstractList | A composition comprising crosslinked expandable polymeric microparticles capable of hydrolysis at or below neutral pH and a method of modifying the permeability to water of a subterranean formation by introducing such compositions into the subterranean formation is disclosed and claimed. This invention further relates to compositions and methods for the recovery of hydrocarbon fluids from a subterranean reservoir or formation subjected to CO2 or CO2 Water Alternating Gas flooding at low pH and increases the mobilization and/or recovery rate of hydrocarbon fluids present m the subterranean formations.
La présente invention concerne une composition comprenant des microparticules polymères expansibles réticulées pouvant être hydrolysées à pH neutre ou en dessous et un procédé permettant de modifier la perméabilité à l'eau d'une formation souterraine par introduction desdites compositions dans la formation souterraine. La présente invention concerne en outre des compositions et des procédés permettant la récupération de fluides hydrocarbures à partir d'un réservoir souterrain ou d'une formation souterraine soumis(e) à une injection de CO2 ou à une injection alternée d'eau et de CO2 à bas pH et qui augmentent la mobilisation et/ou le taux de récupération de fluides hydrocarbures présents dans les formations souterraines. |
Author | WEI, MINGLI KURIAN, PIOUS CHANG, KIN-TAI |
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DocumentTitleAlternate | COMPOSITION ET PROCEDE DE RECUPERATION DE FLUIDES HYDROCARBURES A PARTIR D'UN RESERVOIR SOUTERRAIN |
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SubjectTerms | ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GENERAL PROCESSES OF COMPOUNDING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP |
Title | COMPOSITION AND METHOD FOR RECOVERING HYDROCARBON FLUIDS FROM A SUBTERRANEAN RESERVOIR |
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