Author: gnadmin

Recently one unit of oil based mud cuttings treatment system is ready for shipment to overseas client. The system consists of 2 units of decanter centrifuge, 1 unit of vertical cuttings dryer, 1 unit of container for heat preservation operation in Winter and convenient transportation. One unit of decanter centrifuge is used for solids control system, one unit of decanter centrifuge is used for vertical cuttings dryer system.

The vertical cuttings dryer is installed on the lifting frame for smooth solids discharge, the treated solids with oil content on the cuttings below 5%, the discharged solids can be disposal or for landfill or to be sent to thermal desorption unit for further treatment. The oil based drilling mud cuttings are transferred from waste pit, or 1 unit of horizontal installed screw conveyor collect the oil based drilling cuttings from solids control shale shaker, another unit of screw conveyor is installed slantly to transfer the oil based drilling cuttings to vertical cuttings dryer feeding port. The fluids flow to fluids catching tank, the decanter centrifuge feeding pump will feed the fluids to one of the decanter centrifuge for fine solids separation 2~5 microns, the treated fluids can be reused to prepare for new drilling fluids.

All the equipments are installed inside the standard container with windows, doors for heat preservation operation in Winter, there is space remained for vertical cuttings dryer, decanter centrifuge and feeding pump maintenance. The high speed decanter centrifuge model number is GNLW363D, the bowl diameter is 14 inch, the bowl length is 50 inch, the max speed is 3900rpm, the normal operation speed is 3200rpm, the max G force is up to 3063G. The high speed decanter centrifuge can be applied for solids control system, drilling waste treatment system, oil sludge treatment unit, dewatering centrifuge and other applications of solids liquid separation.

Recently one unit of sludge vacuum pump and decanter centrifuge are ready for shipment for environmental solution.

The mini vacuum pump model number is GNSP-10B, the max capacity for water is 10m3/h, for oil sludge, industry waste, drilling waste transfer, the flow rate will be different according to material conditions. The inlet and outlet size is 3 inch (89mm), vacuum degree is 85Kpa/25 inch Mercury column, the max suction horizontal distance is 50m, max discharge horizontal distance is 500m, the max suction depth (vertically) is 3 ~5m according to density and viscosity, the max discharge depth vertically is 5~ 10m, the max solids content is up to 80%, it can be used to transfer high solids content material, and mx allowance solids size is 50mm. The vacuum pump is 100% air operated, required pressure is 550 Kpa ~ 690 Kpa(80~100 PSI), air demand is 4.3m3/min (150CFM). Working principal of vacuum pump for suction process is that the compressed air enters into the vacuum generator, which generates negative pressure in the pump body and suck the materials from the suction port. The discharge valve is closed. The suction time and discharged is set by the user according to their requirement. they can select automatically operation method or manually operation method as requirement.

The discharge process of the sludge vacuum pump is that closed the vacuum generator valve, the air flow directly enter into the pump body, the discharge valve is opening automatically, and the positive pressure will push the material along with the air flow out of the pump body, at this moment, the suction valve is closed.
The decanter centrifuge can be used for solids liquid separation for industry waste water treatment, dewatering centrifuge, waste separation, oil sludge treatment, etc. applications. If you need a decanter centrifuge, pls contact with GN sales engineer to select a model.

Recently 4 sets of trenchless mud cleaning unit are ready for shipment to Asia client. Including, 2 sets of GNMS-1500D horizontal directional drilling mud cleaning unit, the treating capacity is 1500gpm / 360m3/h, the main equipments are GNZS707 double deck shale shaker with 2 units of 16 inch desander cone, 1 unit of centrifugal pump as feeding pump of desander cone, fluids catching tank and accessories, electric control system. The separation cut point is 45 microns. If you need finer solids separation, we can add desilter cone on top of the shale shaker with separation cut point 25 microns. The compact design desander unit can be applied for project which required high treating capacity treatment.

2 sets of GNMS-1000D horizontal directional drilling mud cleaning unit, the treating capacity is 1000gpm / 240m3/h , the main equipments are GNZS705 double deck shale shaker with 2 units of 10 inch desander cone, 1 unit of centrifugal pump GNSB6X5 as feeding pump of desander cone, fluids catching tank and accessories, electric control system. The separation cut point is 45 microns. The bottom screen area is 2.6m2, upper screen area is 1.35m2, the vibration strength is up to 7.3G which is adjustable.

Except for GNMS-1500D desander unit, GNMS-1000D mud cleaning unit, GN also produce desander unit with smaller capacity 500gpm, 200gpm, GNMS-200D and GNMS-500D. If the user need mixing unit, they can use a separate jet mixing unit skid with storage tank to prepare for new drilling mud. The submersible slurry pump pick up the slurry from mud pit and transfer to mud cleaning unit. The mud cleaning unit can be widely used for trenchless HDD project, bored pile project, Micro Tunnel Boring Machine, Diamond core drilling, water well drilling, etc.
If you need trenchless mud cleaning unit, pls contact with GN solids control.

Recently one unit of GNOST-15B Oil Sludge Treatment Package Equipment are ready for shipment to Beijing client. The package including:

1 unit of oil sludge separation shale shaker GNZS594F, with spray system and sealing cover. The function is to separate the coarse solids and reduce solids content from oil sludge, by mixing with proper chemicals, the oil will be easily removed from solids.

1 unit of big bowl big volume 2 phase decanter centrifuge GNLW554ET-VFD, to separate fine solids from oil sludge, by mixing with proper chemicals, the ultra fine solids can be easily separated, the mixture liquid with oil and water will be collected in a tank for further treatment.
1 unit of big bowl 3 phase decanter centrifuge GNSX554ET-VFD to separate oil, water and solids
The whole oil sludge treatment package including pre-mixing modular, coarse solids separation modular, solids liquid 2 phase separation modular, solids oil water 3 phase separation modular.

The 3 phase decanter centrifuge working principle is sedimentation, the solid with specific weight precipitate.When the material enters the high speed rotating bowl, the oil sludge rotates synchronously with the bowl. Based on the different specific gravity and centrifugal force, the solid with the bigger gravity with biggest centrifugal force, the heavy phase liquid (water) and the light phase liquid (oil). The centrifugal force is becoming less from outside to inside, one concentric solid layer and two liquid layers are formed. Solids are pushed out and liquids are removed from their respective nozzles.
When the client’s required result of recovered oil, water and discharged solids is not very high, 3 phase decanter centrifuge can be used to replace the package of 2 phase decanter centrifuge plus 3 phase disc centrifuge. If they want the better treatment result, 3 phase disc centrifuge should be applied to separate oil and water.

Recently one unit of solids removal unit are ready for shipment for diamond core drilling to South America. The technical specification is as below:

1. Mud tank, 1 unit, which is customized design as per client’s requirement, considering road transportation, easy movement
2. 1 unit of generator installed on the tank skid
3. 1 unit of mini decanter centrifuge GNLW223D for fine solids removal , the bowl diameter is 9 inch, the bowl length is 26.4 inch, the max bowl speed is 4500rpm, the typical bowl speed is 3800rpm, the max G force is 2492G, the typical G force is 1777G, the main motor power is 11KW, the gearbox ratio is 35:1, the gearbox torque is 500N.M., the separation cut point is 2 microns, the solids size smaller than 2 microns remained in the water, the water can be reused for drilling.
4. 1 unit of GNZS752 mini shale shaker for coarse solids removal, the composite material frame shaker screen installed on the shale shaker with different API No.
6. 1 unit of mixing hopper to mix the chemicals with the treated water from decanter centrifuge
7. 1 unit of GNSB3X2 centrifugal pump as centrifuge feeding pump and mixing pump
8. 1 set of electric control system with necessary cables, fittings, control panel
9. 1 unit of submersible slurry pump as feeding pump of shale shaker
   The complete set solids removal unit will be put on top of trailer for easy transportation and operation. The Based on client’s requirement, we can design compact system by changing equipments installation, the generator can be also put on the trailer. The purpose to recover more useful water, reduce the water consumption of diamond core drilling, reduce the produced solids waste and reduce the waste disposal cost.
   If you need solids removal unit for diamond core drilling, pls contact with GN.