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Oil Based Mud Drilling Cuttings Treating Solutions

 

Drilling cuttings treating solutions will depend on the drilling mud characteristics. Oil-based mud is a mud where the base fluid is a petroleum product such as diesel fuel, kerosene, fuel oil, selected crude oil or mineral oil. For OBM’s complexity, the drilling cuttings treating solutions will have more strict demands on the processing  equipment.
Oil-based mud are used for many reasons, including increased lubricity, enhanced shale inhibition, and greater cleaning abilities with less viscosity. Oil-based mud also withstand greater heat without breaking down. The use of oil-based mud has special considerations, including cost, environmental considerations such as disposal of cuttings in an appropriate place, and the exploratory disadvantages of using oil-based mud, especially in wildcat wells.
Using an oil-based mud interferes with the geochemical analysis of cuttings and cores and with the determination of API gravity because the base fluid cannot be distinguished from oil returned from the formation. Successful drilling performance always come along with drilling cuttings from under ground. Those drilling cuttings mix with the drilling mud which are containing regularly 30%-40% crude oil. In this case, to recycle the oil is necessary for cost-effective drilling cuttings treating solutions. According to International Environmental Law,the oil based mud belongs to hazardous waste which can not be disposal without proper treatment.While the handling fee of the solids control is expensive and what we tried to do with the OBM UNIT is to dry and minimize the solids waste volume.

Considering the high cost and environmental pollution of oil mud in well drilling, recycle it through proper drilling cuttings treating solution for continuous drilling operation is significantly important. Just like water based mud recycle, we also need to use a series equipment to realize mud recovery.

KOSUN OBM unit is specially designed for oil based mud recycle and waste minimization. During the process, we will solid control equipment like gas-liquid separator, shakers, vacuum degasser, mud cleaner, desander, desilter, decanter centrifuge, centrifugal pump, screw pump, centrifugal pump, mud agitator and mud pump, and drilling cuttings management equipment like screw conveyor and vertical centrifuge (cuttings dryer). In this case, the solids waste can be easily stored and transferred. The late treatment charge on the solids be effectively decreased. (From yuan.yan@adkosun.com, MP (WhatsApp) +86 18602928622)
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