... water-soluble gel for drilling fluids, and can from artesian well liquor.It has good water-loss controlling ability; especially PAC ... in water, which is specially suitable for sea misering and deep well. It effectively controls the rheology of slurry, with good non ... -Newtonian fluid performance. Moreover, “LONGFAR”CMC can be used as well fixing liquor to prevent fluid entering terrane or crack, and ...