Tag Archives: vertical cuttings dryer

Several Packages of Vertical Cuttings Dryer System for Overseas Client

Oil field equipment and systems are always one of the core products of GN Solids Control, which still occupies more than one third of GN Group’s products each year. For oil and gas industry, each year, GN makes and sells 250+ sets of shale shakers, 150+ sets of decanter centrifuges, and 50+ sets of vertical cuttings dryers. Recently, GN Solids Control just delivered 2 sets of waste management systems to Russia and 1 set of such systems for South America.

1. Vertical Cuttings Dryer. Comparing with shale shakers and decanter centrifuges, the vertical cuttings dryers are not so commonly known equipment, but in fact, in drilling cuttings waste management systems, they are quite practical, especially in case of oil based mud. GN’s first set of vertical cuttings dryer was designed and made into reality in year 2014, and it was soon recognized by clients and became popular all over the world. GNCD series vertical cuttings dryer can reduce the oil on cuttings to 0.5%.

Decanter Centrifuge 2023.08.14

2. Decanter Centrifuge. After the vertical cuttings dryer, there will be a decanter centrifuge to treat the fluids discharged from the vertical cuttings dryer, because there are still some fine particles in the drilling fluids at this stage. A high speed decanter centrifuge is efficient to remove the particles from 2 to 5 microns thoroughly. After the decanter centrifuge, the drilling fluids would be clean enough to be returned to the drilling procedure.

The combination of vertical cuttings dryer plus high speed decanter centrifuge is a must in many countries in the world considering the environment protection purpose. The recent projects GN manufactured are respectively made for Russia and South America. In fact, GN Solids Control has exported the equipment and spare parts to more than 90 countries in the world during the past 15 years. For the oil and gas solids control and waste management, GN can provide a turn-key solution from the consulting to manufacturing. Many world leading drilling companies and oil service companies are clients of GN.

How to Choose a Suitable Solution for a Drilling Waste Management System

According to the environment protection laws and regulations in many countries, the drilling waste management system is mandatory for a drilling rig’s solids control system. A complete drilling waste management system includes 2 systems, one is to treat the drilling cuttings discharged by the solids control shale shakers, which is used for reduce the cuttings for a safe discharge, and also for recovery of the drilling fluids. The other is drilling fluids waste management, which is used to remove the extra particles in the drilling fluids after a long time recycling in a solids control system.

2022.08.15 Solids Control Centrifuge

1. Drilling cuttings waste management system. In a word, this system’s first mission is to minimize the cuttings to be discharged. Based on different mud type, the first separation equipment is different.

1.1. For oil based mud, which is used in most of drilling fields, a vertical cuttings dryer is more efficient. A vertical cuttings dryer is a high speed rotating machine which uses the centrifugal force to splash the liquid to through a mesh while the same mesh is used to block the cuttings. GNCD930 series vertical cuttings dryers can reduce the oil on cutting to below 5%.

1.2. For water based mud, a high G drying shaker is a better choice. It is similar as a shale shaker. And the main differences from a solids control shale shaker are: a high G shaker has a larger G force and the feeding of a high G shale shaker is like a hopper.

2. The second step for separation, for both the OBM cuttings and WBM cuttings is always a high speed decanter centrifuge, which is used to remove the finer solids particles in the liquid after the first equipment’s work. Unless a solids control centrifuge, this centrifuge for drilling waste management is always equipped by a VFD control panel, which is more flexible for variable mud condition.

Next time we will talk about the drilling waste management system.

Drilling Mud Solids Control Centrifuges for Africa Clients

Africa is a wide and beautiful land with rich resources including the gold mines and black gold mines, the crude oil. During exploration of the crude oil, the environment protection should be fully taken into consideration, for example, in the drilling mud, there are drilling cuttings to be removed and chemicals to be safely discharged. In this case, an efficient solution for solids control system is quite important. In all countries, the solids control system and drilling waste management system are legally requested.

GN Solids Control, as a professional manufacturer for decanter centrifuges and solution provider for solids control and waste management systems has been cooperating with many companies in Africa. This time, just in last week, GN Solids Control has provided to a client in Africa with a drilling mud solids control centrifuge.

What functions could a decanter centrifuge to serve in a solids control or waste management system for oil and gas drilling?

Solids Control Centrifuge

1. Decanter centrifuge are always located as the 4th stage for solids control, after the desilter cones. Before the centrifuge, there are shale shakers, desander cones and desilter cones, each has a smaller cutting point than last stage. A middle speed decanter centrifuge is always used for recover the expensive barite in the drilling mud.

2. If there is a 5th stage for separation as in many high configuration solids control systems, it should be a high speed centrifuge, too. This centrifuge is used to separate out the cuttings from 2 to 5 microns in the drilling mud.

3. As in many countries in Africa, where there is a drilling rig, along with the solids control system, there should be a drilling cuttings waste management system containing s vertical cuttings dryer and a decanter centrifuge. The vertical cuttings dryer is used to remove the oil on cuttings and the high speed centrifuge is used to remove the small particles in the recovered mud from vertical cuttings dryer.

Those above mentioned equipment are all within GN’s product range. Welcome to consult from GN Sales Team.

Screw Conveyors and Screw Pumps for African Drilling Waste Management Company

In a recent project, GN Solids Control has provided to an old client from Africa a serious of equipment. Those equipment are to be used for drilling waste management projects. They are kind of customized models including following:

2021.9.6a Screw Conveyor

1. 10 sets Variable Speed Screw Conveyor: 7x GNSC12B-12V and 3x GNSC12B-24V. Screw conveyors are quite widely used for transferring materials in a drilling rig system or in a drilling waste management system, or in both, especially when the drilling cuttings waste management system is located along with rig and work at same time. For example, one screw conveyor can be located horizontally under the shale shakers for collecting the cuttings, then a tilt positioned one is used to receive the cuttings and feed to the vertical cuttings’ dryers inlet hopper. Variable speeds are important for the screw conveyors, because the mud condition is changing and capacity is varying, too. A speed adjustable solution can help to solve this problem and allow the screw conveyors to be suitable for more conditions.

2. 8 sets Variable Speed Screw Pump. Same as screw conveyors, the screw pumps are used for feeding the treating equipment, too. The screw conveyor is used for the vertical cuttings dryers, and the screw pump is used for the decanter centrifuge. GN has VFD controlled screw pump and mechanical speed adjustable screw pumps for option. For example in the positive pressurized control panel of a GNMS-363 decanter centrifuge, there are 3 VFD’s applied, respectively for centrifuge bowl, centrifuge back motor and the screw pump for feeding.

3. 10 sets Control Boxes. Control boxes are also one of core products GN provides. GN Solids Control is a certified electric control panel manufacturer for both non-explosive proof control panels and explosive proof control panels, including CNEX, ATEX and IECEX.
Welcome to contact GN Solids Control for more information.