System and method for bioremediating oil field cuttings

Liquid purification or separation – Processes – Treatment by living organism

Reexamination Certificate

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C210S609000, C210S259000, C210S908000

Reexamination Certificate

active

07807056

ABSTRACT:
Apparatus and methods for bioremediating hydrocarbon contaminated solids. The method can include introducing a slurry comprising one or more drilling fluids and one or more hydrocarbon contaminated solids to a settling system. The settling system can include one or more housings having a receiving compartment at a first end thereof and a collecting compartment at a second end thereof. A barrier can be disposed in the receiving compartment, and at least one wall can be disposed transversely in the housing between the receiving and collecting compartments. The wall can have at least one aperture formed therethrough and at least one flow-restricting baffle disposed thereon, wherein the one or more baffles extend perpendicularly from the wall. The separated hydrocarbon contaminated solids can be contacted with one or more microorganism populations disposed between the receiving compartment and the collecting department.

REFERENCES:
patent: 3202285 (1965-08-01), Williams
patent: 4070292 (1978-01-01), Adams
patent: 5637221 (1997-06-01), Coyne
patent: 6576130 (2003-06-01), Wallace
patent: 7160474 (2007-01-01), Harding
patent: 2008/0251449 (2008-10-01), Hausin et al.
Coupling cost-effective fluid designs and optimized treatment techniques for clean up of hydrocarbon contaminated drill cuttings, Halliburton Fluid Systems, 2006, U.S.A.

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