Apparatus and process for removing drilling fluid from drill...

Details Apparatus and process for removing drilling fluid from drill... Apparatus and process for removing drilling fluid from drill...

E - Fixed Constructions

21

B

E21B 21/06 (2006.01) B09C 1/06 (2006.01)

Patent

CA 2299207

Liquids are removed from drill cuttings generated during drilling operations, recovered and recycled tot he rig drilling fluid system, reducing the amount of waste generated and fluid lost. The process and apparatus to achieve this use a fluid bed thermal desorption unit that vaporizes the liquids from the cuttings. A portion of this vapour is recycled to fluidize the bed, enhance heat transfer and maintain a low oxygen environment in the desorption chamber. The cuttings become the bed medium. The drilling fluid system is used to condense the vapours for re-use. The unit allows for varying rates of cuttings generation and varying composition of those cuttings.

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