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As one of the important equipment for solid/liquid separation system, the drilling mud cleaner, also called desander and desilter assembly, mainly consists of three parts including desander, desilter and the underflow screen. It can achieve separation of two stage with the hydrocyclone mounted over the shale shaker. Compared with the independent desander and desilter, the product has much higher working efficiency.

It is necessary to install a vacuum degasser for their removal from the drilling fluids since the invading gases may impact mud properties, cause safety risks and affect the lifespan of some equipment. Vacuum degasser has found wide application in drilling fluids circulating system, forcing the gases(such as, CH4, H2S, etc.) out of entrained drilling fluids(mud) so that mud properties(including density, viscosity) are well preserved.
Techniques to Extend Lifespan of Vacuum Degasser:

Desanders and desilters are drilling rig equipment with a set of hydrocyclones that separate sand and silt from the drilling fluids. Usually the desanders are used to romove the sand that drilling mud shale shaker can't remove, drilling fluids desilter is installed after desander to remove much smaller sand and silt. The hydrocyclones of them are the main and most important components.

It’s well know that solids content has influence on drilling process. Then, how to make the oil or gas drilling process better? The answer definitely is using solids control system to control the solid content. But what is the solids control? Let's have a look together.
According to the different medium, mud is divided into water-based mud, oil-based mud and emulsion mud. According to the need of different strata and drilling design, reasonably select drilling mud system is a necessary condition for fast, high quality, safe drilling.

Mud gas separator is commonly called a gas-buster, poor boy degasser and liquid gas separator. It captures and separates large volume of free gas within the drilling fluid. If there is a “KICK” situation, this vessel separates the mud and the gas by allowing it to flow over baffle plates.

In drilling fluid solids control system, centrifugal pumps are always used to transfer drilling fluid for shale shakers,hydrocyclone desander and desilter or mud cleaners.
Drilling fluid solids control system

With 22 years development experience and history, Xian KOSUN Machinery CO., LTD always focuses on the pursuit of realizing the maximum value of customers, shareholders and staff and providing clients with superior and advanced quality and service of KOSUN products, which to great extent, embodying the development principle and base development of KOSUN.

The closed-loop separation system is based on water-injection methods to separate gas, liquids and solids in a closed tank. The separated return streams are individually handled so they can be disposed of in the most appropriate manner.

On Dec 13th, KOSUN smoothly passed the in-situ auditing of ISO14001 Environmental Management System and OHSAS18001 Occupation Health Safety Management System Certification conducted by Baer International Certification Center. This meant that Xi’an KOSUN Machinery Co., Ltd. has got the “Green Permit” into international market.

Shear pump is a new model of mud processing equipment. The special impeller design can offer a high shearing efficiency. It can effectively mix and hydrate the material added in the mud in order to reduce the use of weighting material, which provides superior mud performance for drilling.
In a drilling mud recycling system, for the bentonite and other additives, we could use the centrifugal pump to shear and mixing them. But for long strings polymer, only the shearing pump could be used for its wider flow pass and smooth vanes.