COMPOSITIONS FOR USE IN WELL CONSTRUCTION, REPAIR AND/OR ABANDONMENT

摘要

Method for carrying out well construction, repair and/or abandonment operations using an addition-curing silicone formulation, in particular for forming a permanent plug in a well bore or in one or more subterranean formations penetrated by the well bore by placing a mixture of cement and an addition-curing silicone formulation in said one or more subterranean formations or in said well bore at a desired location therein or placing an addition-curing silicone formulation on top of an existing non-gas tight plug and allowing the silicone formulation to set thereby producing a gas tight plug.