Author: gnadmin

Mud recovery desander and desilter is the 2nd and 3rd stage solids control equipment used for drilling field.

Desander used followed with shale shaker. It usually use 1~3 eah desander cone sizing from 6’’ ~ 20’’ , depends on different applications.Desander can separate solids over 40 micrones.

Desilter used followed with desander. It usually mount 4~20 each desilter cone side from 2~5 inch. But 4’’ mostly used. It can be used to removed solids over 27 micrones.

A big or small shale shaker can be used under desander & desilter, then worked as mud cleaner. It can inscrease the separation performance of the whole machine.

Drilling cutting auger is one of the most important equipment for waste managment system.

There are usually at least 2 cutitng auger used for waste managment system. One is lay in level to collect drilling cuttings from solids control equipment, like shale shaker, mud cleaner, barite recovery centrifuge.

Another cutting screw auger usually lay in slant to collect drilling cuttings from the frist stage in level auger, and transfer it to waste treatment equipment, like high G shaker, High G dryer, or waste management centrifuge.

The shale shaker is the only solids control device that makes a separation based on the physical size of the particle. The separation size is dictated by the opening sizes in the shaker screens.Per different drilling mud situation, shale shaker usually use shaker screen vary from API20 to API 325.

Hydrocyclones and centrifuges separate solids based on differences between their relative mass and the fluid. Different speed used per different applicaiton.

An acceleration of one “G” is the standard acceleration due to gravity
(386 in./sec2).

Most shakers operate at accelerations within the range of 2.5-7.0 G’s, depending upon the vibration pattern. Field experience has shown this range offers the best compromise between throughput capacity and screen life.

Some shakers have adjustable counterweights to vary acceleration.
Although flow capacity and cuttings dryness improves with increased
acceleration, screen life is negatively affected. By reducing the “G”s
when extra flow capacity is available, screen life may be improved.

Waste management vertical cutting dryer is one of the most equipment used for treat oil based mud / cutting.

It is high tech. equipment, there are not many company can make it. GN Solids Control Co., Ltd is among the fewer who can make cutting dryer for oil based mud.

And GN is the only one in China with API certification, and make both solids control and waste management equipment, like cutting dryer, big bowl centrifuge, high G shaker, double deck shaker…

Different with others, GN cutting dryer matched with a flash system to wash the dischage port.