72309747
Oct 16, 1968
Mar 31, 1970
WELLBORE FLUID ADDITIVES IN THE FORM OF NON-COMPLEXING BLENDS OF SYNTHETIC POLYMERS AND CARBONATES USED TO CONTROL THE VISCOSITY, GEL STRENGTH AND FLUID LOSS PROPERTIES OF BRINES AND OTHER FLUIDS USED IN WORKOVER, DRILLING, DEEPENING AND FRACTURING OF OILS, GAS AND WATER WELLS
Metal Goods