Separation of evolved gases from drilling fluids in a...

Details Separation of evolved gases from drilling fluids in a... Separation of evolved gases from drilling fluids in a...

2007-07-17

2007-07-17

Bates, Zakiya W. (Department: 3676)

Boring or penetrating the earth

With above-ground means for handling drilling fluid or cutting

Fluid or cuttings directing or receiving means engaging bore...

C175S212000

Reexamination Certificate

active

10990523

ABSTRACT:
A fluid handling system for drilling cuttings utilizes a constant and gravity managed liquid level between a substantially atmospheric separator and a shale shaker. Substantially all of the gas entrained in the cuttings is evolved and passed to a flare for preventing evolution of the gas at the shale shaker. Solids from the separator are combined with liquid recirculation from and returning to the shale shaker. Optionally, a vacuum degasser is positioned between the separator and the shale shaker and separated gases are passed from the degasser to the flare. This method and system is particularly applicable to balanced, underbalanced and air drilling operations where the flow of gas is intermittent and unpredictable.

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