Drilling mud is used to control subsurface pressures, lubricate the drill bit, stabilize the well bore ,and carry the cutting to the surface , among other functions..Mud is pumped from the surface through the hollow drill string ,exits through nozzles in the drill bit,and returns to the surface through the annular space between the drill string and the walls of the hole.

Drilling fluid maintenance cost, clean up, and disposal cost as well as the overall cost of boring can be reduced dramatically when proper solids control techniques are utilized. These facts were recognized in the oil industry in the late 19th century when open earthen pits were used to separate the cuttings from the borehole. This was accomplished by a series of weirs and settling pits that allowed the solids to naturally settle out by using gravity. The clean mud then flowed into a suction pit to be re-pumped down the hole. This was the first solids control technique ever used.

From the above, maybe you have found that the first step of drilling fluids solids control:Separation the cuttings from mud. In view of this, shale shaker turned into the first stage of drilling fluids solids control equipment.

Often two series of shale shakers are used .The first series (primary shakers)used coarse screens to remove only the larger cuttings .The second series (secondary shakers）use fine mesh screens to remove much smaller particles.In general ,the separated drill cuttings are coated with a large quantity of drilling mud roughly equal in volume to the cuttings.

KOSUN linear motion shaker is especially effective while drilling top-hole sections where heavy and high-volume solids are usually encountered. In these intervals, shakers may generate powerful G-forces and its effective vibrating motion can quickly remove the dense solids from screens and particles from wells.

KOSUN Shale Shaker

KOSUN is a leader in China solids control industry and expert in drilling waste management. KOSUN is capable of providing customers with such four series as oil & gas drilling solids control equipment, centrifuges, drilling waste treatment equipment and drilling security equipment, including 25 categories of products, and can also customize packaged design and matching products of oil & gas drilling rigs for drilling contractors. The products provided by KOSUN are extensively used in oil & gas drilling and workover, coalbed methane drilling, shale gas drilling, water well, geothermal well drilling, trenchless horizontal directional crossing projects, mine gravel staged treatment, tailings treatment, rive dredging works, municipal environment-friendly sewage treatment, industrial wastewater treatment, fruit juice purification, waste oil recovery and purification treatment, etc.