Drilling shale shaker processing limit in mud system

As we known, in solid control system, the drilling fluids flows onto the shale shaker screen from feeder to the terminal end, and the solids that are bigger than the mesh would keep on the screen.

Shale Shaker

The liquid phase with smaller particles would goes through the screen into the mud tank, and big solids then would be removed also through the terminal end of screen basket. The drilling fluids that come out from the borehole would continuously flow onto the sreen to be treated. When the fluids or the liquid phase of the fluids spills from the terminal end of the screen basket, it shows that the shale shaker comes to its processing limit.

This processing limit is determined by two factors:
1) Liquid processing limit. This means the drilling fluids max. flowing rate that available for the shale shaker.
2) Soid phase processing limit. This means the max. solids content that drilling fluids can carry to the terminal end.
Shale shaker screen is a kind of permeating medium, the process capacity of which is determined by:
1) Screen basket motion trail;
2) Flow conductivity;
3) Effective Filtration Area.

Besides, in whole drilling mud solids control system, decanter centrifuge also plays an important role. Decanting centrifuge is used to separate suspended solids ≥2μm in diameter and treat the drilling mud and fluids. It is especially effective when used in oilfield service industry, industrial service industry and especially in environmentally sensitive areas.
This type of centrifuge is high in recovery rate, effective in solids control and remarkable in the reduction of cost spent on drilling mud resupplying and management. It is a very sophiscated dynamic balancing machine, able to operate stably with the whirling speed ranging from 0 to 3900 and generate centrifugal force of 3000G.