Month: August 2015

GN Solids Control is one of the most professional supplier for solids control equipment , drilling waste process equipment and dewatering equipment in China , The dewatering main equipment is the decanter centrifuge and chemical mixing and storage system . GN Solids has a full line of dewatering unit including one set dewatering decanter centrifuge , centrifuge feeding pump , mud agitator , mud holding tank , chemical mixing pump and hopper , etc .

Chemical mixing equipment will need chemical mixing pump , small hopper , small agitator and flocculation tank . The mixing pump normally will be able to calculate volume of pumping ,so this will make density of chemical can be calculated . There are 2 kinds of chemicals , fluids chemicals normally can be mixed by an mud agitator which is easy to get mixed . The powder chemicals will be mix by hopper with mixing pump .

After chemical mixed well , the mixed chemicals can be delivery into dewatering centrifuge together with drilling mud . The decanter centrifuge will have different options and the top 2 models are GNLW553VFD and GNLW363CG , GNLW553 centrifuge is design for 400 GPM mud flow capacity and 550 mm bowl diameter and GNLW363CG model is design for 132 GPM mud flow capacity and 360 mm bowl diameter with 3200 RPM rotating speed . Both centrifuge bowl is made stainless material SS316L and screw made by stainless SS2205 which is much better than normal stainless material SS304 .

Mud tank will be using to storage dirty or clean mud , the mud tank size can be customize by 6 mm thick tank wall and 8 mm thick tank bottom with 200 – 300 m H beam as tank skid . The tank size normally will be design as per request .

GN Solids Control just dleiveried one set drilling cuttings process system to CNPC jobsite with engineers help commissioning on jobsite also . That is designed tipically for water base drilling mud drilling cuttings and they choose Hi G dryer shaker and decanter centrifuge for process . This is one of the modular design for water base mud drilling cuttings process with Hi G dryer part and decanter centrifuge part . And they choose another modular for oil base mud drilling cuttings process by vertical cuttings dryer and decanter centrifuge also for different drilling conditions .

Vertical cuttings dryer is one of the main equipment for drying drilling cuttings by centrifugal force by screen 0.25 to 0.5 mm size . The drying effenciency between 3 percent to 5 percent fluids content inside which will be good for the result . The treating capacity max 50 tons per hour depending on treating requirement . The bowl diameter size 930 mm and feeding by screw auger .

Decanter centrifuge will be lay after vertical cuttings dryer for recycle fluids content at speed 30 cubic meters per hour by GNLW363 model centrifuge , it can separate solids 2 – 5 microns by centrifugal force . The bowl diameter 360 mm with bowl length 1271 mm by SS2205 stainless material . The screw bolted tungsten carbid tiles on for helping protect screw impeller for longer working life .

Hi G dryer is on economy option for water base mud drilling cuttings process as it is only one third of the price of vertical cuttings dryer . The treating efficiency will be much lower than vertical cuttings dryer but still can be on good option depending on drilling conditions and budget information . Please contact GN Solids Control for more info.

GNCM -40A is one of GN models of the drilling waste management package , it is contains of vertical cuttings dryer , decanter centrifuge , centrifuge feeding pump , mud agitator and work plat form . This is one of the popular model for drilling waste management in oil and gas industry to work as a package . This design can be working in a drilling waste management working plant or work beside solids control system on drilling site depending on client request .

The work plat form is the base of a whole package to hold all equipment and attachment together for fast moving . The work plat form contains 3 main different part , the first part is a vertical cuttings dryer plat form with a high skid to sit dryer , handrail and walkway for working on top . The second part of plat form is a small holding tank to hold mud after vertical cuttings dryer with a mud agitator on top and a slurry pump for feeding decanter centrifuge . The third part is the centrifuge work plat form with a high skid to allow centrifuge discharge into a tank by weight instead of by pump .

Vertical cuttings dryer and decanter centrifuge are the 2 main equipment for GNCM -40A drilling waste management package , the dryer will be mainly to dry drilling cuttings from solids control system and keep sure drying effeiciency bellow 5 percent and discharge fluids content recycled into holding tank , the centrifuge will be fed by a pump from holding tank for recycle drilling fluids and discharge clean mud into solids control system or to a storage mud tank . There are different option for decanter centrifuge and vertical cuttings dryer , VFD control is the top option with PLC control .