GN Solids Control is a professional manufacturer on drilling mud solids control, drilling waste management and oily sludge separation. Below are some of the normal questions clients want to get answers from GN Solids Control:

Q 1: What is included in the scope supply and what is the scope of components in the skid, agitation, level controls, flow meter, oil/water monitoring discharge?
GN Solids Control: There are totally 6 modules for a full package oil sludge treatment system.

1. Sludge vacuum pump feeding module;
2. Pre-mixing and heating module;
3. Shale shaker separation module;
4. 2-phase decanter centrifuge separation module;
5. 3-phase disc centrifuge separation module;
6. Chemical dosing module.

But not all modules are necessary for all applications. GN Solids Control will choose the necessary modules per material and job site situation. For example, for slope oil without big solids, shale shaker separation module is not needed. Necessary skids, agitators, levels controls to complete the operation of the system are included.

Q 2: Is there chemical injection dosing pumps.
GN Solids Control: Chemical dosing pumps and control panels for dewatering unit are all included in the Containerized Chemical Dosing System. All pipelines, electrical controls, valves, level meters are included in the package. For powder chemical and liquid chemicals, the chemical dosing system is different.

Q 3: Is there a heating coil in the tanks.
GN Solids Control: Heating coil (pipeline) included in the pre-mixing and heating tank. Heating machine excluded.

Q4: What is the pitch of the Decanter conveyor (scroll), or the Distance between scroll edge and bowl?
GN Solids Control: It is less than 1.2 mm

Q 5: The Slop Oil Package as you state is for drilling slops, has it ever been used for crude oil slops.
GN Solids Control: It is designed for Oil Sludge from
1) Crude Oil tank cleaning sludge
2) Refinery plant waste oil sludge
3) Drilling waste oil sludge

Q 6: PLC for equipment would be required to be English.
GN Solids Control: Yes. Operators can choose Chinese or English. Other customized operation langue is available.

GN Solids Control makes different sizes of Decanter Centrifuge and sludge transfer pumps. This weeks, some sets of Decanter Centrifuge and sludge transfer pump are ready for shipment, they will be exported to overseas clients which is an Environmental Engineering Company.

Below is the list of the Decanter Centrifuge and sludge transfer pump for the international Environmental Engineering Company:

1) Some sets of separation decanter centrifuge
It is a single motor small bowl high speed decanter centrifuge for 2-phase liquid and solids separation. The centrifuge model is GNLW224. It is a 9 inch baby centrifuge. GN Solids Control can make fixed speed control and variable frequency speed control for the small centrifuge. The centrifuge is widely used for waste oil and waste water treatment, like for environment protection companies, mining industries, and waste water treatment companies. It can also be used together with chemical dosing system for dewatering treatment.

2) Solids and sludge vacuum transfer pump
It is mobile type vacuum pump specially designed for high solids content liquid and solids transfer. The typical advantages of GN Solids Control vacuum pump is that, its suction length can up to 50 m. The discharge distance can up to 500 m or 1000 m depending on the pump models.

As the request from clients, GN Solids Control specially designed a vacuum sludge pump for Bilge sludge Cleaning and for vessel tank bottom cleaning. The cuction length of the bilge sludge vacuum pump can up to 80 m.

3) Centrifugal transfer pump
Centrifugal pump is also called as sand pump. It is widely used for slurry transfer and for mixing pump of mixing system.

GN Solids Control is also capacity to make explosion proof electrical control panels. GN Solids Control makes control panel to start and stop the centrifugal transfer pump. For easy layout, GN Solids Control makes customized pump base to support the centrifugal pump and control panel. The control panel and centrifugal pump motor is connected by cable when delivery from GN Solids Control factory. In this case, clients only need to connect the control panel to job site power supper, and then they can start to run the pump.

In October, a set of 7500bbl liquid mud plant was delivered from GN Solids Control headquarter in Beijing. The 7500bbl liquid mud plant is only a part of a 30000 BBL big projects.

The 7500bbl liquid mud plant is composed of below items:
1) Quantity 14 vertical storage tank for water, brine and drilling mud storage.

The usable capacity of each vertical tank is 500bbl. Total usable volume of the 14 vertical storage tank is 7000bbl. The 14 ea vertical mud tank is located in 2 lines for a minimized footprint. Compared with traditional horizontal mud tank, vertical tank can save space greatly.

The 14 vertical storage tanks are all designed with magnetic flap level gauges to measure and display the liquid level. On the other side of the storage tank, a horizontal placement is designed. When the storage tank needs to be placed horizontally, the horizontal placement can ensure the stability of the storage tank. Centrifugal pump can be used to suck and discharge drilling mud from the storage tank, or to suck the mud from the mixing tank.

2) 500BBL horizontal mixing tank
The mixing tank contains two sets of non-interference mud mixing system, which are powered by two independent submersible slurry pumps. When one pump fails, the other submersible slurry pump can be easily switched to avoid downtime.

The mixing tank adopts 2 sets of two-impeller mud agitators to prevent the drilling mud from sedimentation. In addition, it is also equipped with 2 mud guns for fixed-point flushing of the corners of the tank.
The top of the mud tank is made of mesh board. This 500BBL mixing tank adopts a skid-mounted structure, with a small rectangular size, and can be moved by a flatbed truck.

GN Solids Control is committed to providing global customers with a variety of drilling mud solids control equipment and drilling waste management equipment, which can to used to treat oil based mud (OBM), water base mud (WBM) and SBM composite-based mud. In order to meet the various needs of different applications, GN Solids Control can is capable to offer customized design equipment and combined waste management solutions for customers.

GN Solids Control waste management vertical cuttings dryer is specially designed for oi base mud and oil base drilling cuttings. Before enter into GN Solids Control vertical cuttings, the oil on the cuttings is around 15% ~ 20%. It is very liquidable. It is difficult for transportation. And very high cost and low efficiency if feed into thermal desorption unit directly.

GN vertical cuttings dryer can reduce the oil on the cuttings from 15% ~ 20% to 3% ~ 5%. Sometimes the OOC is even less than 3%. The discharged solids phase is much easier for transportation. The recovered drilling fluids can be reused and it is valuable. It saves clients mud cost. With less than 5% OOC, the drilling cuttings can be discharged directly, or covered by cement or do solidification treatment. Even if they need to be treated by thermal desorption unit or by Microbial treatment, it is much small volume.

GN Solids Control uses German Brand NETZSCH pump as flush pump for the vertical cuttings dryer. Gearbox of the screw pump is also German brand NORD.

GN Solids Control makes telescopic skid to hold the vertical cuttings dryer. It makes the solids discharged fluently, and the liquid can flow into decanter centrifuge for next stage separation by grave. It save a middle transfer tank, and saves a transfer pump.

GN Solids Control can also offer 0.5 Ton Hand chain hoist for operators to change screen basket. The Hand chain hoist is fixed on the telescopic. There are foldable walkways and guardrails on the skid itself. For inland shipment, clients do not need to remove the vertical cuttings dryer, just fall down the legs of the skid, and fold the guardrails.

GN Solids Control makes various sizes screw conveyor under shale shaker to collect drilling cuttings and feed to the dryer. And there will be another vertical cuttings dryer to transfer the solids from vertical cuttings dryer to other solids skips.