solids control system

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Drilling equipments for oilfiled including: (drilling rig complete package)

Mud tank, shale shaker, suction line, mud pump, motor, vibrating hose, draw-works, standpipe, Kelly hose, drill pipe, floor, swivel, Derrick, BOP, drill bit, drill string, flow line, wellhead, Kelly drive…,etc.

GN Solids control produce mud tank, shale shaker and other solids control equipments, we already exported these equipments to over 60 countries in the world, we also develop drilling waste management equipments which is also used for rig site. Usually they are installed after the solids control system for further treatment of the cuttings separated from the solids control system.

There are a lot of mud tanks in drilling rig solids control system, during operation, some slurry with oil will deposit in the tank bottom. How to clean the mud tank become a problem, tank cleaning takes time and cost a lot.

To clean mud tank, firstly you should improve the agitating performance of the mud agitator to less the sediment;secondly, you can use a pitgun to carry out this process remotely, operators and rig owners no longer need to have personnel enter mud pits or tanks to manually break up compacted solids that build up on the floor, beneath pipework, and in tank corners during the drilling process.

Mud cleaner is used as the 2nd and 3rd phase separation of drilling fluids, used after shale shaker. After treated by mud cleaner, the clean drilling mud is re-used to the well, the cuttings are collected and enter into drilling waste management system.

 Mud cleaner is used before decanter centrifuge, it can separate most of the large solids and less the solids content in the mud, to less the burden of decanter centrifuge so that the service life of centrifuge can last longer.

As centrifuge is the most expensive equipments in solids control system. For this reason, a good mud cleaner is much more important. Some clients do not use under-flow shaker on the mud cleaner, they only use separate desander and desilter, then all the rest works are done by the centrifuge, it will damage very fast. Or some clients only use a small screen area mud cleaner, so some of the large cuttings leaked into the tank to damage the centrifuge screw propeller and feeding pump.

Drilling mud from rig overhead manifold flow to shale shaker, mud cleanerthe cuttings processed by shaker and mud cleaner is transferred by screw conveyor to vertical cutting dryer.

The solids processed by Vertical cutting dryer is discharged from solids discharge port, get recycled mud in mud recycling tank, which is pumped by centrifuge feeding pump to decanter centrifuge, the separated solids is discharged from centrifuge solids discharge port, the clean mud come back to solids control system.

BY 8 June 2012 Uncategorized

Photo taken in client’s site of 1500HP rig solids control system for Great Wall drilling. Great Wall drilling is a subsidiary of CNPC, also IADC member. I hope I could be in the site of commissioning for another big solids control system in Latin America soon.