M-I SWACO Introduces New Console for Accurate Choke Control, Schlumberger

HOUSTON, February 25, 2011—M-I SWACO announced today the release of the LOW PRESSURE AUTOCHOKE CONSOLE* (LPAC*) unit, a precision-built choke console that provides accurate and economical control of the AUTOCHOKE* unit during managed pressure drilling (MPD), underbalanced drilling (UBD) and other low surface pressure operations.

The unit’s sunlight-readable touch screen panels ensure accurate readings in any weather condition and allow for precise pressure inputs to the AUTOCHOKE units. Screens display additional operating parameters including casing and drill pipe pressures, pump rates, strokes and diagnostics.The Remote Human Machine Interface can be placed anywhere, allowing the choke operator to work in close proximity to the driller throughout the MPD or UBD section of the well. The Remote HMI comes standard with the LPAC unit. A built-in arbitration scheme allows the logical transfer of control between the remote HMI and the Local HPU. The LPAC unit is also equipped to be controlled by third party software. 

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