Method for treating oil-contaminated drill cuttings from a...

Details Method for treating oil-contaminated drill cuttings from a... Method for treating oil-contaminated drill cuttings from a...

E - Fixed Constructions

21

B

31/10, 209/5

E21B 21/06 (2006.01)

Patent

CA 1140323

ABSTRACT 9961 A method for treating oil-contaminated drill cuttings at an onsite location, e.g. offshore drillsite, so that the cuttings can be disposed of directly without the risk of pollution. The contaminated cuttings are separated from the drilling mud and are mixed with an oil absorbent material which absorbs the free oil from the contaminated cuttings. A surfactant may be added to aid in binding the oil in the cuttings and the oil absorbent material. When the cuttings are of large size, they are preferably ground before mixing them with the oil absorbent material. When the mixture of cuttings includes small or dust- like particles, the mixture is compacted into pellets, briquettes or other masses having a sufficient density to sink in water.

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