Oil&Gas Drilling Solids Control
Solids control system Description
Solids control system is also called drilling fluid purification system, mainly used for solids control and solid-liquid separation, so that drilling fluid can be recycled. The system is composed of three to seven composite tanks with four-stage purification equipment, applicable to oil drilling projects up to 2000-7000m. The system is innovated with composite tanks of taper base and mud agitators at tank borders to prevent solid sedimentation. Besides, mud tanks and mud boxes can be partitioned or combined as needed during drilling process. Each mud tank is connected via pipe networks with one another. Valve of suction pipe is flexible for opening and has good sealing effect when being closed.
How To Work?
Loaded on mud tanks, solids control system assembles four-stage solids control equipment, security equipment and other auxiliary equipment via manifolds according to separation effect. Drilling fluid carrying cuttings enters shale shaker through diverter. The shale shaker separates big cuttings particles (above 74pm) from drilling fluid and treated drilling fluid containing smaller particles passes through screen and enters mud tanks. If there are bubbles in the mud, se也priming device of vacuum degasser can suctions the mud into tanks for mud-gas separation. The mud after separation is then supplied for desander and desilter via centrifugal pump. Separation is further performed in cones based on centrifugal sedimentation principle. Solid particles within 44-74um and 15-44 pm separated by desander and desilter are discharged and the mud enters the mud tank under centrifuge through manifolds on cones for the next stage separation. Submersible slurry pump (screw pump) feeds mud to decanter centrifuge and solids particles over 2 pm in diameter are separated for centrifugal sedimentation. Each mud tank is connected with internal pipes. Drilling fluids of different separation effects can be pumped for use during drilling process as needed. Jet mud mixer equipped for mud tanks can mix mud as needed.
Replated Equipment
The main components of the solids control system are: Shale Shaker, Mud Cleaner, Desander, Desitler, Decanter Centrifuge, Vacuum Degasser, Mud Agitator, Mud Pump, Mud Tank Etc.
