DEVELOPMENT AND IMPROVEMENT OF HYDROGEL DRILLING FLUIDS WITH AIM OF INCREASING DRILLING RATE, QUALITY OF DEVELOPMENT OF PRODUCTIVE SEAMS AND REDUCING WELL CONSTRUCTION COSTS

The mechanism of the structure formation of polymer hydrogel drilling fluids has been studied. It has been established that the hydrogel fluids have the rheologic properties which provide a minimum viscosity at a high initial filtration in the bit area and a high viscosity at a low yield of water when moving in the hole clearance. The commercial tests and introduction of the polymer hydrogel fluid at the sites of the "LuKoil-Nizhnevolzhskneft" Joint-Stock Company have made it possible to reduce the time and materials by 23%, increase the mechanical drilling rate by 11 to 40% and bit sinking by 18 to 240%. A wide use of the polymer hydrogel fluids while drilling in the conditions similar to those used by "LUKoil-Nizhnevolzhskneft" Joint-Stock Company has been proved to be advisableAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio