KUDU Progressing Cavity Pumps (PCPs) | Schlumberger KUDU progressing cavity pump, KUDU PCP, artificial lift, coalbed methane, gas well, water cut, sand cut, heavy oil, medium oil, light oil, thermal well, water well, free gas The KUDU progressing cavity pump is a positive displacement pump with a helical rotor spinning inside a fixed stator, forming cavities that lift the fluid, including viscous fluids and fluids with high sand cut or a large percentage of free gas.