GN Solids Control makes some customized high G drying shaker units for an offshore project. The high G drying shaker model is GNZS594F with 4 screen panels. The high G drying shaker are equipped with anti splash cover.

The anti splash drying shaker is installed on a small catch tank. There is a centrifugal pump installed on the tank skid to transfer mud to other tanks.

There are 2 mud agitators are installed on the mud tank to avoid mud settle down.

High G drying shaker is a kind of shale shaker which adapts G force to separate liquid and solids phase. GN Solids Control makes various sizes solids control shake shaker with G force up to 7.5G. GN Solids Control makes high G drying shale shaker which is with G force up to 8.0G. The G force of all GN shale shakers are adjustable.

The damping spring is important to shale shaker performance. It is used to reduce the vibration effect to the shaker mechanical parts. The normal material of damping spring is metal frame inside, and outside is covered with vulcanized rubbers.

There are totally 3 high G drying tank units for the same offshore project. It is designed and made per client’s request. GN Solids Control standard color is green RAL6024. And also the color of the whole unit is blue and white, it is specially made per client’s request.

GN Solids Control offers high quality composite frame pretension shaker screens for all GN shakers. Further more, GN Solids Control can make other sizes replacement screen for other brand shale shakers.

Shale shaker can be used together with various sizes and quantity of hydra cyclone assembly to work as mud cleaners.

Besides high G drying shale shaker, GN Solids Control can make other drilling waste management equipment, includes but not limited to vertical cuttings dryer, decanter centrifuge, dewatering unit, vacuum pump, screw conveyors, etc…

Degasser is a basic device in drilling mud solids control equipment. Degasser can quickly migrates bubbles to the surface of drilling fluid and removes them. Using degasser is the most effective way to remove gas from gas influx drilling fluid.

Degassers are divided into two categories: vacuum degasser and atmospheric centrifugal degasser. According to the way of vacuum formation, it can be divided into jet evacuation degasser and vacuum pump evacuation degasser.

As long as the structure is reasonable and the viscosity is normal, the degassing efficiency of the general degasser can reach 80% ~ 95%. The inlet pipeline of the degasser is installed behind the agitator of the second tank (close to the grit chamber). In this way, the large-diameter bubbles of 4 ~ 25mm can be removed by the agitator to facilitate the suction of the degasser. At the same time, the self-locking of the centrifugal sand pump used for the hydrocyclone can be avoided.

No matter what kind of vacuum degasser, its structure has the following three points in common:

1. There is a vacuum pump or jet pump to maintain a moderate vacuum in the degassing tank, so as to suck the gas invasion drilling fluid into the tank for gas-liquid separation and discharge the natural gas to the atmosphere

2. Grooved baffle or conical umbrella plate is generally set in the tank to separate the drilling fluid into thin layers to escape the gas.

3. Equipped with liquid level control device to adjust the flow of drilling fluid into the degassing chamber, so that the degassing chamber will neither overflow nor empty.

The improvement of vacuum degasser mainly focuses on the above aspects. Different structures form different types of products.

Mud gas separator is another device to remove the gas from drilling fluids. It is used after chokemanifolds and before shale shaker. It is a necessary safety device.

Dual tandem shale is completed with 2 shale shakers. For a dual tandem shale shaker, There are 2 shakers fixed on a skid, and the feeding box of the 2 shakers are connected by distribution box or distribution pipelines. There are valves on the distribution pipelines to control the mud flow to either one or both shakers.

Dual tandem shale shaker is widely used at workover drilling rig mud system. Compared with single shale shaker, the dual tantem shale shaker is easy for shipment and layout on the mud system. It is used to remove the drilling cuttings from drilling mud and get qualified drilling mud to support the drilling actives.

Drilling cuttings are the main solid phase polluting drilling fluid. It greatly affects the performance of drilling fluid and must be stabilized. Therefore, it is very importance to do solids control treatment during drilling process. Drilling fluids solid control is the process to control and remove drilling cuttings. The cost of drilling fluid is directly related to solid phase control and its effect.

Shale, sandstone (sand), limestone, dolomite salt and salt rock often encountered in drilling are low-density solids. Their drillability varies greatly, which plays an important role in the determination of drilling fluid system and the selection of solid control system.

After the solids control shale shaker, the desander and / or desilter mud cleaner will be used. It is to further separate finer drilling cuttings.

There are 4 steps solids control equipment: shale shaker, desander, desilter, and decanter centrifuge. Clients can choose the right model solids control equipment depends on the separate point of the equipment and the separation demands of the rig site.

Decanter centrifuge is the most expensive separation equipment on the solids control equipment. It is used to remove the ultra fine solids in the drilling mud.

Mud mixing hopper and mixing pump are used as mixing unit to prepare qualified drilling mud.

GN Solids Control is specialized in drilling mud solids control equipment, drilling waste management and replacement shaker screens for various shaker models.

Drilling waste and oil sludge treatment is the major products of GN Solids Control. Below is a simple introduction of the major separation equipment to treat drill mud and drill cuttings.

1) Vertical cuttings dryer is the major equipment to treat OBM (oil base mud) cuttings: It is also called as vortex centrifuge. Vertical cuttings dryer can reduce oil on cutting to 3% ~ 5%.

2) High G drying shale shaker is the major separation equipment to treat water base mud (WBM) cuttings.

3) High speed Decanter centrifuge is used after Vertical cuttings dryer to reduce the mud weight. 14 inch centrifuge is the most popular size used at oil field. Clients can select fixed speed control centrifuge for cost effective, and choose another set of pulley and belt for changing to another fixed speed. GN Solids Control is also capable to make variable frequency drive control (VFD) decanter centrifuge and full hydraulic drive (FHD) decanter centrifuge.

4) Screw conveyor is the most popular transfer device to feed for vertical cuttings dryer and high G drying shale shaker, and transfer the solids discharged from the separation device. GN Solids Control offers various diameter sizes and transfer length screw conveyors.

GN Solids Control can also offer different design full package OBM treatment unit to suit for various clients’ request. GN Solids Control will offer a question list about waste management to know more about clients’ job site situation. Then GN Solids Control will work out a suitable proposal for clients.

For OBM cuttings treatment, most clients will separate the drill cuttings, and recover the usable drilling mud from the cuttings. And resell the drilling mud. If only for one short time project, sometimes it is not economic to invest much for the 3-phase separation to separate oil and sell oil.