Gas minimization in riser for well control event

Details Gas minimization in riser for well control event Gas minimization in riser for well control event

2006-11-29

2009-08-25

Beach, Thomas A (Department: 3671)

Wells

Submerged well

Wellhead

C166S367000, C166S336000, C166S373000, C175S024000, C702S189000

Reexamination Certificate

active

07578350

ABSTRACT:
A system for controlling gas in a subsea drilling operation is disclosed in one embodiment. The system includes a subsea blow-out preventer, riser coupled to the blow-out preventer, a gas sensor, a controller, and a signal pathway. The gas sensor is configured for placement below the riser and configured to contact wellbore fluids during normal drilling operation. The controller configured to automatically cause manipulation the blow-out preventer based upon information from the gas sensor. The signal pathway couples the gas sensor with the controller.

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“Schlumberger”, Sedco Forex Well Control Manual, Jul. 10, 1999.

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