s is known to all, SINOPEC is one of the 3 largest oil companies in China. They explore crude oil fields, do the drillings and also involved in HDD projects. In fact, HDD is short for horizontal directional drilling, which is widely used for pipeline laying works without destruction of the constructions on ground. During HDD drilling, the mud clarifying systems are also important. GN Solids Control has been a stable Vendor for SINOPEC for years and recently, GN delivered two sets of mud cleaning