drilling waste management system

Recently GN solids control shipped several units of solids control equipments for Uzbekistan for cold weather, these equipments are special for low temperature operation to -50℃.We have provided such low temperature solids control equipments to Russia area oil & gas drilling rigs before, including the containerized drilling waste management system. The technical configuration of low temperature containerized drilling waste management system is as below:

The feeding system to the drilling waste management system is through screw conveyor, it is transferred to the open top of the vertical cuttings dryer. One unit of vertical cuttings dryer installed on the mud tank, the discharged solids are dropped down to a continuously working screw conveyor to ship it out from the opening of the standard 40ft container. The fluids dropped to the mud tank and the screw pump will transfer it to the VFD decanter centrifuge ,which is also installed on a short mud tank, the fluids are treated by the VFD decanter centrifuge again and the solids discharged will be also transferred out by the screw conveyor for disposal. Another screw pump is installed on the vertical cuttings dryer mud tank as the flushing pump, once the working is finished, it is necessary to flush it or when the screen basket is blocking, it is necessary to flush with the flushing pump.

All the equipments are installed inside the 40ft container to keep the system warm in cold weather below minus zero degree, to prevent it from getting frozen. The 40ft container is with windows and doors for convenient operation, all the walls attached with the Insulation for better warm.

This week we shipped one unit of oil based drilling waste management system for CNPC, they ever bought similar system before for their domestic and international projects.

To get ideal result of the discharge cuttings and recover oil as much as possible, the performance of vertical cuttings dryer is the major concern. GN has a lot of successful experience for drilling waste management projects, our vertical cuttings dryer has been improved to E version from the year of 2013 when we firstly produce the vertical cutting dryer as per our client’s suggestion and site feedback. From the first A version to the existing E version vertical cuttings dryer, it has been more and more user friendly and maintenance cost has been reduced a lot.

We have 900rpm, 1200rpm rotary speed for option to meet different requirement, the G force is up to 420G / 750G, and the screen basket opening can be 0.25mm, 0.35mm, 0.5mm for option for different drilling waste conditions. The screen basket and screen basket frame is separated, the operator only need to replace the single screen basket when it is wear. The independent oil lubrication system is for better lubrication of the bearing to prevent it from over heating. The automatic interlock system between oil pump motor, main motor and flush pump motor is equipped in case that the main motor starts before oil pump motor.
The decanter centrifuge is used after the vertical cuttings dryer to treat the fluids discharged from the vertical cuttings dryer, after treated by the centrifuge, the fine solids over 2 microns can be separated mostly, the fluids can be used to prepare for new drilling fluids or reuse directly. The high speed decanter centrifuge is used for low gravity solids, the max speed is up to 3900rpm.
If you need oil based cuttings treatment system, pls contact with GN freely.