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Drilling Waste Management Processing Craft Description


During oil & gas exploration and production, there are lots of drilling cuttings and fluid generated. These drilling waste will leak into earth with time going which is great harm to surface and ground water and the surrounding environment even causes pollution, especially in sensitive area harmful to human health and life. Therefore, it is crucial important to drilling waste management before discharged.

Here is a simple processing procedure for drilling waste management.
  • The screw conveyor mounted under the shale shaker is used for collecting drilling cuttings from shale shakers and mud cleaners (desander or desilter), then convey the drilling cuttings to the H-G dryer for solid-liquid drilling waste management.
  • There is one conical buried tank under the shale shakers for discharging mud and alleviate the grit in mud tank. Otherwise, if serious grouting off happened, the overflow mud will enter into the conical buries tank to prevent mud grounding. There is one unit of submersible sludge pump at the end of the conical buried tank which can return the fluid to the H-G dryer for waste separation. The conical buried tank is equipped with two units of MA55 mud agitators.
  • Solids from the centrifuge is back to solid collection tank for solidification and then passed to the on-site waste temporary dumps.
  • The solids after H-G dryer and high speed VFD centrifuge get to the solidified tank by screw conveyor, and the fluid enters into the collection cabin and is pumped into high speed VFD centrifuge by screw pump for further drilling waste management.
  • The solids after high speed VFD centrifuge is transported to the on-site waste temporary dumps by screw conveyor, or discharged into the solidified tank. The solids after high speed VFD centrifuge must not enter into cuttings dryer for further processing.
  • The sediments in the conical buried tank under the H-G dryer can be dig out by special machine.
  • The system shall be facilitated with washing device for equipment cleaning.
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