Monthly Archives: February 2022

Drilling Fluids Shale Shaker and Mud tank for Offshore Drilling Company

GN Solids Control is capacity to make solids control shale shaker and mud cleaner for onshore and offer drilling rigs. Recently, GN Solids Control finished a drilling fluids mud tank system for an offshore drilling company.

There are drilling fluids shale shaker and centrifugal pumps equipped in the offshore rig mud system. The shale shakers are used to treat the drilling fluids. There are some centrifugal pumps used for the mud system, some are used for transfer, some are used together with mixing hopper to prepare qualified new drilling mud.

2022.02.17 Offshore Mud Shaker

According to the conditions generating vibration, the shaker shakers can be divided into four types:

1. Atmospheric shale shaker: the upper side and lower side of the shale shaker screens are atmospheric pressure. It is the most popular type shale shaker.

GN Solids Control makes single deck and double deck shale shaker. According to the screen quantity of single deck, GN Solids Control makes 2-panel mini. Shale shaker, 2-panel shale shaker, 4-panel shale shaker and 5-panel shale shaker.

2. Positive pressure shale shaker: the environment above the screen is greater than atmospheric pressure, and the environment below shaker screen is atmospheric pressure. It is not popular. Nearly not used for drilling mud treatment.ViST-Vacuum-Shaker-Screen

3. Negative pressure shale shaker: the upper side of the shaker screen is atmospheric pressure environment, and the bottom side of shaker screen is less than atmospheric pressure environment. It is also called as vacuum shaker screen. GN Solids Control makes screen vacuum unit to suit for his own brand shaker models. The vacuum unit is separated with shale shaker.

GN Solids Control vacuum screen unit is very compact design. It is suitable for both offshore rig drilling mud system and offshore drilling mud system. A vacuum unit can be connected to 1 shale shaker, 2 shale shakers, or maximum 3 shale shakers.

While the screen vacuum unit is working together with solids control shale shaker, it can replace the extra high G drying shale shaker at drilling waste management system.

Tank cleaning system and centrifuge separation unit

Many clients have much interest on tank cleaning system. Clients want to know more actual process in the field for both water base slurry and and non-oil base mud on rig tanks.

Regarding the tank cleaning system, it is a basic and simple separation unit. GNTC-30C Automatic Tank Cleaning System is a closed loop system to continue clean the mud tanks, oil tanks, chemical tanks or slurry tanks. Clients can send materials to GN Solids Control factory for test. The major separation device is Inclined Plate Clarifiers (IPC).

GN Inclined Plate Clarifiers (IPC) is a high performance, Lamella plate design for removal of settleable solids in a variety of waste slurry. The lamella plate is made from stainless steel. It can be used to separate oil sludge or non-oil sludge.


The GNTC-30C Tank Cleaning system can supply fresh water to the high pressure tank cleaning machine which is mounted inside the tank. And the integrated pumps bring the dirty wash water back to the system for cleaning works and then return the clean water back to the tank cleaning machine for reuse.

It applies gravity separation. The liquid is not very clean.The final recovered liquid quality various per the raw material and the chemicals. Clients can choose suitable chemicals to help for the separation and help to improve the separation efficiency and quality.

It is designed for tank cleaning companies, who do not have high request on the liquid quality. They can use the recovered liquid to clean mud tanks again.


If clients want clean liquid after separation, the tank clean unit is not suitable. They can use centrifuge separation. GN Solids Control makes various sizes of decanter centrifuge frpm 9 inch, 14 inch, 18 inch to 22 inch and 30 inch. GN Solids Control also makes various types of chemical dosing unit. The chemical dosing unit and decanter centrifuge can be used together for dewatering treatment.

Drilling mud cleaner for GN Solids America

Some weeks ago, a drilling mud cleaner arrived GN Solids America in Houston. It will be dispatched to the local client with other equipment soon for drilling mud processing project.

Drilling mud cleaner is a very popular separation equipment to process drilling mud and waste slurries. The mud cleaner dispatched to GN Solids America is a 3-in-1 model. It is composed of a shale shaker, desander separator and desilter separator. Before enter into the mud cleaner, the drilling mud will be pre-treated by shale shaker to remove the big solids and to reduce the solids content.

The desander and desiler assembly is a separate unit which is located on the top of a shale shaker. Clients can remove the cyclone unit and use the mud cleaner as a separate shale shaker.

The screens are used for mud cleaner is normally very fine screens with small opening. As the hydro cyclones used for the mud cleaner is 10 inch for desander and 4 inch for desilter. The desilter separator cut point is 27 microns. So the shaker screen on the underflow shale shaker should be smaller than 27 microns. The fine screens are used to further recover drilling mud.

Except for the mud cleaner, decanter centrifuge package is hot sale separation equipment from GN Solids Control. GN Solids Control is capacity to make fixed speed centrifuge, VFD centrifuge and FHD centrifuge. Another advantage of GN Solids Control centrifuge is that, GN Solids Control can make telescopic skid to hold the centrifuge with its control panel, feeding pump and pipelines. The skid is completed with ladders, walkways, guardrails, etc… for turn key solution. Operators are very easy and safety to stair up and down to operate the centrifuge package. The jobsite operators likes the design very much. They said it is the most user friendly centrifuge package they ever used.