Oil and gas well drilling services, namely, managed pressure drilling

'drill':5,10 'gas':3 'manag':8 'name':7 'oil':1 'pressur':9 'servic':6 'well':4

Oilfield system for managing annulus pressure during drilling operations comprised primarily of pressure sensors, valves, seals, and conduits designed to detect, control, and manage annulus pressure

'annulus':5,25 'compris':10 'conduit':18 'control':22 'design':19 'detect':21 'drill':8 'manag':4,24 'oilfield':1 'oper':9 'pressur':6,13,26 'primarili':11 'seal':16 'sensor':14 'system':2 'valv':15

VICTUS

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