Research And Application On No Clay High Quality Drilling Fluid

In view of the drilling fluid solid content,First of all, to enhance the rejection capability of drilling fluid to reduce hydration of mudstone, Using coagulant to make cuttings to be larger particles, they will be eliminate by vibrosieve, To reduce the harmful of reservoir; in the second place, Reduce the filter loss of drilling fluid, steady wall of an oil well, Prevent collapse; in the end, Choose dissolubility-salt to be adulterant, Reduce solid content, Reduce the content of submicron particles in drilling fluid. For dilution shearing, on the premise that Efficiency sand return, Reduce the parameters Carson η∞(flushing port viscosity) of drilling fluid by flow pattern regulator.The formula of no-solid phrase polymer is optimized by the a series of test in greenhouse, then evaluate rejection capability、rheological、temperature resistance、filtration property、lubrication property、permeability recovery, and then formulate field test plan about drilling fluid, After site test, Confirm field application formula and maintenance treatment scheme of drilling fluid system, in the end, The popularization and application.