STUDY OF THE PHENOMENON OF GAS MIGRATION AT AIN SALAH (CHANNELING GAS)

Abstract

The process of cementing the well is one of the most important stages that the driller must perform to the fullest extent, as the cement works to stop and isolate the expected leaks resulting from the formation, especially the leakage of gas, which is considered a severe problem in the drilling field, as it seizes the opportunity to cross during the dryness of the cement (from the case liquid to solid) which results in a drop in well pressure to form transit channels towards the surface called channeling. In our topic, we dealt with the problem of gas migration in the Ain Saleh area, where we touched on a new technique used recently called Flex Stone which is a substance that reduces gas permeability in cement to be the most effective method for this event.