[EN] ENCAPSULATED GAS FOR DRILLING AND COMPLETION FLUIDS<br/>[FR] GAZ D'ENCAPSULATION POUR FLUIDES DE FORAGE ET DE COMPLÉTION
申请人:BAKER HUGHES INC
公开号:WO2014151271A1
公开(公告)日:2014-09-25
Gas-core microstructures, such as microbubbles, may be used in drilling and completion operations in the exploration and production of hydrocarbon fluids (e.g. oil and gas) from subterranean formations. The gas-core microstructures are dispersed in a base fluid such as water, oil or emulsions of water and oil, in accordance with the specific performance needs. Applications for fluids containing these gas-core microstructures include, but are not necessarily limited to, use as a spacers to control trapped annular pressure, use as low density drilling fluids, use as dual gradient drilling fluids and the delivery of chemicals downhole.