Drilling fluid serve as lubricant for the drilling bit and it needs filter the solids that produce while the drill bit drilling into earth. While drilling into the earth, broken solids from the underground mix into the drilling fluid will decrease the lubricant performance and will cost damages of the drill bit that will also result drilling operation on hold that leads increase of operation cost. The solids control machinery ensure the solids separation to ensure the continues operation of the drilling rig to achieve consist operation cost and time efficiency. Shale shaker, Vacuum degasser, mud cleaner and centrifuge are the basic machinery to achieve the filtrations of solids for the drilling fluid.
Shale shaker is the first step solids control machinery to filter the drilling fluid that filter the large solids by continue shaking force by motors and various API numbers of shale shaker screen. While it is the first step of filtrations, the result will determine following machineries’ filtering process.
Vacuum degasser is use pumps that create suction of pressure in the vacuum tank. The bubble in the drilling fluid need to remove cause the harmful gas that might cause explosion and need the balance of chemical compound of the drilling fluid.
Mud cleaner is continue process of the filtration after the shale shaker by eliminating smaller solids that pass through shale shaker screen. The desander, desilter and shale shaker combine as mud cleaner and use different of API number screen to achieve mid level of filtration solids fluids.
Centrifuge is machinery use centrifugal force by rotating in rpm force to achieve remove finest solid, recovering barite and controlling the density and viscosity of the drilling fluid to make sure the drilling fluid is debris free as much as possible so the drilling fluid can be return back to the rig.