E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 10/18 (2006.01) E21B 10/00 (2006.01)
Patent
CA 2187717
A method and apparatus of drilling fluid containment on a rotating head. Firstly, provide a cylindrical shell separable into two detachably secured halves. The cylindrical shell has a fluid circulation port and an access door. Secondly, securing the cylindrical shell to a rotating head by assembling the two detachably secured halves around the rotating head and clamping a flange onto a stationary portion of the rotating head.
Haugen J. Jay
Holtby Quinn
LandOfFree
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