During the drilling process, mud enters the formation through the drill pipe, and the drilling fluid is discharged together with the drilling waste after being used. Because mud is expensive and can damage the environment, the solid control system comes into being in this situation.
The solid control system of oil drilling is mainly to control and separate the solid substances in the drilling fluid, such as sediment and gravel, so that they can be recycled, also known as the mud purification system.
In the process of drilling, often encounter rock, gas, or underground hot springs, in the process of rock drilling, the huge friction of the rock is very harmful to the drill, and in the drilling encountered gas or hot springs easily cause kick, blowout, in this case will be used mud.
Mud is usually water, oil, or a mixture of oil and water that contains a large amount of suspended matter, such as jelly. Mud can be divided into water-based mud, oil-based mud, and mixed mud.
During the drilling process, the mud can effectively lubricate the drill bit, and the mud with barite and flocculent can effectively balance the bottom pressure and prevent blowouts and kicks.
The main equipment of a solid control system is a vibrating screen, desilter, degassing device, desilter, centrifuge, desilter pump, agitator, etc. This solid control equipment is like a series of different sizes of screens, through layers of filtration to achieve the purpose of purifying mud.
