Stabilize shale, prevent borehole collapse, lessen viscous and filtration. Meanwhile, form a thin and dense mud cake to reduce the incidence of differential pressure sticking. Carry cuttings to increase drilling rate and reduce drilling tool wear. Plug permeable formation very effectively, such as broken formation and sandstone. Form a protective film on the surface of rock while coring, increase core recovery rate. Degradation automatically, non-polluting to environment and resistant to above 180℃ high temperatures.
Usage: Adding this product into the mud directly, mixing and dissolving. Dosage is 2-3%.