Centrifugal separation is one main and effective separation way, while the mixtures can distinguish by gravity, which means with the same volume, the weight is different. In solids control system, there are two way to separate the drill cuttings from the drilling mud, screening and centrifugation.
As we all know the screening machine is the shale shaker, and they separate the drilling cuttings by volume, the bigger one left and the smaller be stored to next phase.
There are kinds of centrifugal equipments in mud system: Centrifugal pumps, hydrocycolone separator (desander and desilter), and decanter centrifuge.
The centrifugal pump is used to pump the drilling mud, and make the hydrocyclones work. While the other ones is the separation equipments.
Centrifugal Pump
SB series centrifugal pump is the ideal equipment to provide impetus for Desander 、Desilter and Jet Mud Mixer. It can also be used as Charge Pump auxiliary perfusion for mud pump and Trip Pump for drilling well head. centrifugal pump is also called centrifugal pump.We considered completely the set equipment can work in excellent condition in the process of designing parameters).Most parts can be exchanged , with convenient operation and maintenance、less seal leakage、reliability、long life and other advantages.
Hydrocycolne Separator
Hydrocyclone separator is always referring as desander and desitler, used after shale shaker in the solids control system. Usually the cone diameter is more than 6″is called Desander, and used as the second-control equipment in drilling operation. the cone diameter is less than 6″is called Desilter, and used as the third-control equipment in drilling operation. We commonly used 5 “and 4″ cone to separate solid-phase particle size 15-47μm in the drilling fluid.
Decanter Centrifuge
Decanter centrifuge are used to process unweighted and weighted, water-based and oil-based drilling fluids (muds). Mechanical energy is utilized to increase the gravitational force exerted on solids that are present in the mud system.