E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/035 (2006.01) E21B 7/12 (2006.01)
Patent
CA 2641296
A universal marine diverter converter (UMDC) housing is clamped or latched to a rotating control device. The UMDC housing assembled with the RCD is inserted into a marine diverter above the water surface to allow conversion between conventional open and non--pressurized mud-return system drilling, and a closed and pressurized mud- return system used in managed pressure or underbalanced drilling.
Marks & Clerk
Weatherford/lamb Inc
LandOfFree
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