Drilling waste management system becomes a more and more important part of drilling rig mud system. Without it the rig is not permitted to start. But as the cost of drilling waste equipment and system is higher, rig site do not want to spent cost and wait for long time to get the system. To cater for the customers’ request, China leading supplier, GN Solids Control makes standard drilling waste management equipment modular. With the separate modular parts, customer is easy to match a complete system per their jobsite request and rig condition.

Last week, GN Solids Control dispatched a complete drilling waste management system to CNPC jobsite to treat their water base mud cuttings (OBM cuttings). The system is a turnkey solution including following modulars:

Part 1: 1 sets High G dryer shale shaker GNZS594HGE-LD with a under flow catch tank for direct use and fast movement. The HG drying shaker is mainly used to treat the water based drilling cuttings discharged from solids control shale shaker, desander and desilter.

Part 2: Drilling waste decanter centrifuge, with telescopic skid, guardrails, ladders feeding pump, piepelines, and other necessary accessories. The centrifuge is high speed with variable frequency control (VFD). It is easy to change the bowl speed, conveyor speed and pump speed in order get a better performance.

For the 14’’ hot sale high speed Decanter centrifuge, GN offer 2 standard of option:

Option 1: it is economic standard with economic standard material and common VFD control without PLC for smart control.

Option 2: it is widely chosed for international market. It is made per international higher standard to suit for more bad working condition. And the VFD control panel is positive pressurized with PLC for smart control.

The above decanter centrifuge and drying shale shaker is the main machine for water base mud drilling cuttings treatment. GN offer other transfer pumps, and cuttings box per customers’ request to make a complete system.

Welcome you contact GN and tell GN your jobsite condition to get a customized fast solution.

Normally, Decanter centrifuge supplier will give a max. hydraulic capacity to show the centrifuge capacity, like 30 m3/h or 40 m3/h. For professional centrifuge user, they what that this parameter really means. But for some new users of centrifuge, it may cause some confusion.

To understand well this question, we should know what is max. with hydraulic test means.

Definition of centrifuge max. capacity:

It is the test figure from hydraulic test. It means the max. hydraulic input volume of the centrifuge can allow. All the input water can be pushed out by centrifuge and there will not be water came out from solids end.

Test method of centrifuge max. hydraulic capacity:

Close the bypass if there is. For fixed speed centrifuge, start centrifuge directly. For VFD centrifuge, Let it runs at the max. bowl speed and conveyer speed. And increase the water input step by step and make sure there is no liquid discharged from the solids end. If there is water out from solids end, it means it is overload. So small reduce it. The max. figure that water will not discharged from solids end is the max. capacity or max. hydraulic capacity of decanter centrifuge.

Many new centrifuge users are wondering: why our solids control centrifuge can treat mud 20m3/h, while the drilling waste management decanter centrifuge can only treat 10m3/h? And the drilling waste management centrifuge is high standard than solids control centrifuge? To understanding this question, we should know the definition of max. solids discharge rate first.

Besides max. hydraulic capacity, there is another figure beeb used together to definite centrifuge performance, it is called the max. solids discharge rate.

Definition of max. solids discharge rate

It means the max. solids a centrifuge can discharged per hour. It is from mud test.

Let’s say, if a centrifuge can treat max. 30m3/h mud with 10% solids content. It means the max. solids discharge rate is 3m3/h.

It means in any cases, the centrifuge can discharge solids no more than 3m3 mud per hour.

So the higher of the solids content, the smaller of the mud input (mud capacity).

If the solids content is 15%, the max. mud input should be less than 20cbm per hour. And for VFD centrifuge, in order to get better separation result, the bowl speed and conveyor speed should be adjust accordingly. For the same mud input with the same decanter centrifuge, the better of the separation, the smaller of mud capacity.

GN Solids Control is China leading manufacturer on drilling mud solids control and drilling waste management system / equipment. With its advanced design and internal high standard quality, GN developed fast and got a worldwide reputation on solids control and drilling waste management supplier field.

As the normal comer of Houston OTC oil show, GN Solids Control came together with GN Solids America this year 2015.

What equipment GN take for the show in Houston OTC 2015

1) Vertical cuttings dryer for OBM, WBM and SBM, model GNCD730A

Normally speaking, for other brand vertical cuttings dryer, they can only treat oil base mud and synthetic base mud. While GN patent design vertical cuttings dryer can be used to treat water base mud as well.

For many oil and gas drilling activities, like in Russia, Africa, U.S.A., European and Middle east, they use water base mud as the first stage or drilling. And then, they shift to oil base mud for deep drilling. In the traditional way for drilling waste management, they should use a high G shaker system to treat the oil base drilling cuttings, and then change to use vertical cuttings dryer system for oil base mud drilling cuttings treatment.

Now with GN advanced design vertical cuttings dryer system, the drilling jobsite can use the same one system for the whole drilling activities. They do not need to shift system during drilling. It can save drilling cost and time.

The model GN takes for the show is a small size high speed suitable for offshore drilling. As many customer told GN their jobsite is very limited on space and they need very compact design dryer for their site. Based on their conditions, GN designed the small size dryer with high speed an reach up to 1500rpm

2) Another equipment GN takes for the show is high speed decanter centrifuge GNLW363C.

It is the most popular size centrifuge. With GN advanced design, it can be used for mud solids control, drilling waste management, waste water treatment, oily sludge separation and other fine solids separation applications.

If you have interest on GN drilling waste management equipment and want for more information, welcome you contact Gn group freely.

As China leading manufacturer on drilling waste management system, GN brand drilling cuttings treatment system helps GN developing fast in China and international market. GN system can be used for the treatment of oil base mud (OBM), water base mud (WBM), and synthetic base mud (SBM).

GN Solids Control makes a complete Drill cuttings treatment system for CNPC China project. The system is made and designed to treat water base mud drilling cuttings. Below is the equipment included in the system.

1) High G dryer shale shaker

Applications of High G dryer shale shaker: It is mainly used to treat water base mud drilling cuttings (WBM). Drill cuttings from solids control shale shaker, desander, desilter or mud cleaner will be transferred to high G dryer shale shaker. Screw conveyer, cuttings transfer pump or vacuum pump can be used for the transfer of drill cuttings and feeding for the high G dryer shale shaker.

2) Drilling waste decanter centrifuge

It is a 14 inch high speed decanter centrifuge specially designed for drilling waste management system. And the centrifuge is controlled by a VFD control panel with PLC system for smart control. There are many companies in China declared for centrifuge making, but very fewer of them is designed and made per drilling waste management application. And many of GN customers in China, they said they have centrifuges for their solids control system, but once they use it for drilling waste management, it is completely unworkable, too many problems. When they tried GN drilling waste management centrifuge, they are satisfied and decide to follow with GN although GN price is higher than normal China brand.

Many customer wondering why drilling waste centrifuge different with solids control centrifuge and price higher. The reason is that, they are used to treat different materials. Drill cuttings have a high density and viscosity than the drill mud, and the solids content is high than the drill mud.

3) Feeding pump for decanter centrifuge and transfer screw pump to transfer mud from centrifuge tank to outside tanks.

4) Lighting system and electrical control system for the whole system

GN is approved for explosion proof control system manufacturing. GN offer complete turn-key solution to customers.

Furthermore, GN can offer customized color and logo on the system per customers’ request.