drilling waste treatment

Recently one set of containerized vertical cuttings dryer system and containerized drilling fluids treatment decanter centrifuge unit are ready for shipment to overseas mud company for OBM drilling cuttings treatment. The system configuration is as below:


1. vertical cuttings dryer module including: GNCD930G vertical cuttings dryer, container to install the equipments inside it, screw conveyor which is used to collect drilling cuttings and transfer to vertical cuttings dryer, screw conveyor to collect the discharged cuttings from vertical cuttings dryer discharge port and transfer it to waste collection box, flushing pump for vertical cuttings dryer, lifting device for vertical cuttings dryer screen basket replacement, transfer tank, etc. All of the equipments are installed in the container with windows and doors. The purpose is for fast installation and convenient transportation, also it can meet the requirement for cold weather area use in Winter.


2. Decanter centrifuge module including: GNLW363D-VFD vertical cuttings dryer, container with window and doors, decanter centrifuge feeding pump, screw conveyor to collect the discharged solids from centrifuge discharge port and transfer to waste collection box. If without the container with special Insulation layer, the project in the area with low temperature in Winter will have to stop and wait till the fluids be unfreezed, the customized design can meet their requirement in special conditions.


Except for containerized vertical cuttings dryer and decanter centrifuge system, GN solids control can also provide skid mounted drilling waste management system for oil based mud drilling waste treatment. The features of skid mounted drilling waste management system is convenient operation, convenient transportation, high efficiency, economic cost. It can be lay on the drilling rig besides solids control system, or it can be installed in the drilling waste treatment facility, the screw conveyor system can be installed flexibly according to the layout and space limit.

What is waste treatment in oil & gas drilling industry? It is the solution for Containment, Transportation, Treatment and Disposal of the drilling wastes. Its purpose is to protect the environment, to reduce the pollution,, to reduce the drilling waste disposal cost, to recover more useful drilling fluids for reuse.
The drilling fluids treatment process is that the mud generated from well head flow to solids control system for treatment, the useful fluids are reused to prepare for new drilling fluids by mixing with proper chemicals, the solids are drilling waste, which is a combination of solids and liquids, take oil based drilling waste as example, according to API solids size classification, the coarse solids size are bigger than 2000μm, the medium solids size range is 74~ 250μm, which can be separated by shaker screens, the fine solids size range is 44~74μm, which can be separated out by desander cone, the ultra fine solids size range is 2 ~44μm, which can be separated by 4 inch desilter cone and high speed decanter centrifuge, the colloidal size is smaller than 2μm, with chemical dosing unit, the dewatering centrifuge can separate it out. To improve the drilling waste treatment efficiency, the best solution is waste minimization.
The drilling waste treatment solution including cuttings handling system and cuttings treatment system. The cuttings handling system mainly consists of augers, waste collection hopper, vacuum pump, etc, the screw conveyor collect the drilling waste from solids control primary shaker and transfer to vertical cuttings dryer or high G drying shaker. The cuttings treatment system consists of vertical cuttings dryer, high G drying shaker, dewatering centrifuge, feeding pump, tank skid, skip, etc.
If you need drilling waste management solution for both onshore and offshore drilling rig, pls contact with GN solids control.