PanDrill is one kind of environment friendly shale inhibitor composed of polymeric alcohol. The water soluble polyglycol can absorb in the surface of the cuttings and wellside to isolate the water and clay surface. The character of “cloud point” will increase liquid viscosity and improve the shale stability. There are three types of PanDrill as per the cloud points. It depends on the formation temperature.
PanDrill is one kind of environment friendly shale inhibitor composed of polymeric alcohol. The water soluble polyglycol can absorb in the surface of the cuttings and wellside to isolate the water and clay surface. The character of “cloud point” will increase liquid viscosity and improve the shale stability. There are three types of PanDrill as per the cloud points. It depends on the formation temperature.
