In order to maximally recover the valuable drilling fluids and reduce the volume of waste discharge, the drilling contractors always adopt drilling waste management equipment to further treat the discharged waste cuttings from primary solids control equipment. After long time research and design, GN developed standard complete skid mounted drilling waste cuttings drying system in which the vertical cuttings dryer and premier configuration decanter centrifuge are the key equipment.
1）For oil based drilling cuttings, normally it can reduce the oil on the cuttings to 3% to 5%.
2）For water based drilling cuttings, normally it can reduce the moisture content for easy transportation.
3）Recycling drilling fluids for reuse to save cost .
4）Reduce the drilling waste quantity to save money on the disposal or further treatment.
GNCM-40A Standard Drilling Cuttings Drying System
Complete Package Total Weight Around: 18.5 Tons (Including all equipment)
1) Tank Skid Dimension: 11500x2200x2052mm
This dimension fit for putting inside the 40FT container after removing centrifuge and cuttings dryer for
shipping by sea.
2) Land Transportation Dimension: 11500x2300x3300mm
Lower the centrifuge and cuttings dryer to the low position while moving by trucks, this dimension fit for
land transportation fast move completed package without removing centrifuge and cuttings dryer from
3) Operation Dimension: 11500x4244x4567mm
This layout allows the drying solids discharge from the vertical cuttings dryer, and also allows the fluids
discharged from the centrifuge goes to active/storage mud tank by gravity without transfer pump.
Drilling Cuttings Drying System Layout
1. Primary Shale Shaker
2. De-sander & De-silter
3. Solids Control Centrifuge
4. Screw Conveyor/Auger
5. Vertical Cutting Dryer
6. Waste Decanter Centrifuge
Drilling Waste Cuttings Closed Loop Management Diagram (As show in above picture)
1）The cuttings discharged from the primary shale shaker, de-sander and de-silter was conveyed by 3 units screw conveyor to cuttings dryer unit for treatment.
2）The effluence out from the cuttings dryer flows into the interim tank of the drilling waste Drying system GNCM-40A.
3）The beneath located screw pump sucks the liquid from the interim tank and feeds to the decanter centrifuge located on the telescopic skid.
4）The effluence out from the decanter centrifuge flow into the interim tank beside the centrifuge skid. The submersible pump on the interim tank suck the effluence and send back to mud system, or the effluence out of the centrifuge flow back to the mud tank by gravity for reuse.
5) The waste solids discharged from the cuttings dryer, waste centrifuge is firstly collected in the cuttings box and then transferred to solidification system for curing processing or to TDU thermal unit for further treatment.
GN Cuttings Drying System Performance Record
A: Oil on the cuttings before treatment.
B: Oil on the cuttings for the drilling cuttings discharged from GN Vertical Cuttings Dryer.
GN Drilling Waste Cuttings System Working Video
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