Jan 06

40 Feet Water Based Drilling Waste Treatment System

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Two weeks ago, GN Solids Control completed one set 40 feet water based drilling waste treatment system that is used for oilfield waste management service. Water based drilling waste is coming from the drilling projects where
use the water based drilling fluids to cool down the drill bit, protect the drilling well wall and take out the drilling cuttings.

The main equipment included in this 40 feet water based drilling waste treatment system are as follows:

1) High G force dryer shakers used to further drying the cuttings discharged from the primary solids control equipment, wide open deck design allows the feeding of waste easily
2) Dosing System for mixing chemicals that will fed to the centrifuge for flocculation process
3) High speed Decanter Centrifuge for liquid and solids separation
4) Mud Tank unit under the shaker to collect the liquid going through the shaker screens
5) Screw Pump transfer the fluids to decanter centrifuge for polishing

water-base-drilling-waste-management-system-2

Drilling Waste Management System

Working diagram of the 40 feet water based drilling waste management system

The drilling waste, always coarse drilling cuttings, was fed to dryer shaker for further drying, and then the screw pump will transfer the drilling fluids with ultra fine solids to the decanter centrifuge (It is also dewatering centrifuge). In the meanwhile, the chemical dosing system mixes polymer, once the polymer solution is cured. The diaphragm pump transfers the polymer to the dewatering centrifuge. The ultra fine solids will get together once meet with the polymer, which will help the centrifuge to separate the solids. The drilling waste management system for separating the ultra solids in waster based drilling fluids is also called dewatering system.

Equipment features of the 40 feet water based drilling waste management system

GN’s high G force dryer shaker has up to 8 G force. with 4 panels composite material screen, the Dryer shaker has an excellent separation and drying performance.
GN high speed decanter centrifuge and feeding screw pump are VFD driven and controlled by PLC. The operators could set the suitable parameters to treat different kinds of drilling fluids.
Besides the drilling waste management system for water based mud, GN also developed the equipment for oil based mud. Even the oily sludge treatment solution is one of GN’s main businesses. GN’s system for drilling waste management has many performance cases that will prove GN equipment quality and availability. This is why customers choose GN Solids Control.

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May 27

In past couple years, GN Solids Control is keeping research and development the new products so that clients could get a turnkey solution for drilling mud solids control and waste management. With the gradually issuing of the new environmental regulations, the drilling operators focus their eye on the final solution of disposal on the drilling waste.

gn solidification unit onsite (2)

GN Solidification Unit Onsite

Solidification unit is a new developed product of GN for the final treatment of drilling waste including drilling cuttings, oil bottom sludge and so on. It is not firstly designed and manufactured by GN; some other world famous waste management equipment supplier already made and sent if for onsite application. As a leading manufacturer of waste management equipment in China, no doubt, GN will develop this type of equipment.
So far, GN’s solidification unit already been sent to customer’s site for application and the feedback was good. GN’s solidification unit has 2 chemical storage tanks where the operator could put the cement and lime in it. By adjusting the feeding rate, the chemicals and waste would be fed to the mixing vessel. Here the waste would become inactive material that will not pollute the soil and water. Furthermore, the discharges can be used to pave the road for site.

gn solidification unit onsite (1)

Processing Result

Customer firstly fed wet waste into this unit and the treatment result is not as good as expected. Later, GN’s engineer told them this solidification unit is used to treat the waste what firstly should be treated by the dryer unit. Like the drilling cuttings could be treated much dryer by the high G force drying shaker and vertical cuttings dryer unit.
GN is also thankful for the good suggestions from customer on perfect the design of this unit. And GN did upgrade the design and make it more compact for site layout and transportation. For some points request good sealing, GN also took into consideration. Any interest on GN’s solidification unit, please feel free to contact with us for more information.

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Feb 22

De-sander is very popular equipment used in solids and liquid separation processing. It always contains cyclone unit and steel frame. With different diameter of the cone body, this cyclone unit could separate the solid particles with different sizes. GN’s de-sander is using 10 inch cyclones which could remove the solids size down to around 45 microns.
GN’s de-sander unit is used in drilling industry to separate the drilling cuttings from the drilling fluids. Traditional de-sander units don’t have the under drying shaker for maximum recovery of the drilling fluids liquid, thus a large amount of valuable drilling fluids was lost. However, this type de-sander and even the de- silter unit are very simple structure and cost effective.

gn de-sander unit

GN De-sander Cleaner

To make the discharged solids much dryer, GN prefer to suggest choosing the de-sander unit with a under drying shaker which could recycle much more drilling fluids. This could reduce the waste discharges to environment and the cost on drilling fluids materials. GN has a de-sander model with under drying shaker of 2 layers screens panel. This unit is functioning as both primary shale shaker and de-sander unit. The drilling fluids gets into this de-sander unit via the mud distributor pipe and then flow on the bottom layer screen firstly for primary solids control. Liquid gets through the screen mesh and falls down to the under located mud tank. Large size particles will be discharged out of the shaker. And then the liquid will be transferred by a centrifugal pump unit to the de-sander cyclone unit for fine solids separation. The mixture of liquid and solids discharged from the cyclone will come to the upper layers screen for drying processing. Here, to prevent the damage of screen mesh resulted by the strong impact force of solids discharged out from the cyclone unit, GN designs small buffer box to cover the outlet of the cyclone. This buffer box is small enough to make the unit more compact.
GN’s double-layer screen panel shale shaker can also be used as only primary shaker for much fine solids separation. Besides de-sander unit, de-silter unit can also use this type shaker as drying shaker.

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Jul 13

The modular waste cuttings drying units are meaning the separate equipment used for drilling waste cuttings drying processing. Equipment with frame, skid, beneath installed tank, these equipments could be used both independently and worked as an assembled drilling waste cuttings management system.

Modular Waste Cuttings Drying Unit

GN Modular Waste Cuttings Drying Unit

The reason that GN solids control made this kind of design is to provide more customized solution and save the customers with great funds. According to the feedback from the customers who are always working on the oilfield, GN firstly launched the skid mounted drilling waste cuttings management system with the key equipment vertical cuttings dryer and waste decanter centrifuge mounted on the same skid. This complete skid could be moved by only 1 trailer, which is the customers’ preference. While some other customers came to GN and ask whether they could get single equipment and connecting with their existing waste cuttings drying equipment. Or due to the limited space on site, they cannot put a 40 ft skid on the site, they are seeking some units could be located more freely. The modular waste cuttings units are exactly what they are looking for.
GN’s modular waste cuttings drying unit series includes telescopic skid vertical cuttings dryer and decanter centrifuge, High G force drying shaker with under located catching tank, the intermediary tank specially for effluence storage, waste cuttings transferring unit and the waste collection container unit.
According to the base of the drilling mud, the user could choose to use the cutting dryer or high G drying shaker as the critical equipment to make a complete waste cuttings drying system. Comparing with the 40ft size design, the modular unit has the advantages of freely located onsite and the connecting is more customized. The user also could choose several units of the complete line according to their budget.
GN’s modular waste cuttings drying units have been used onsite and the feedback is returned good. Keeping providing the customer with good solution and bringing benefit for the customer is always GN’s purpose.

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