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AssigneeCameron West Coast Inc.
InventorsEdward Leonardo Ganzinotti, II, Edward Leonardo Ganzinotti, III, Brent Phillip Shanley, Matthew Anthony Couchot
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The present apparatus and method of use allows a blow out preventer to be installed as a unit with a section of casing, and does not require the blow out preventer to be removed as subsequent strings of casing are installed, thus efficiently utilizing drilling rig time. The present invention further allows a casing string to be landed and cemented in place, and then the drilling rig may move off the location, without a permanent wellhead housing attached to the well. The primary apparatus utilized in the invention is a tubular connector which suspends a string of casing during cementing, and which receives a casing plug for sealing the well when drilling operations have been completed. When completion operations commence, a permanent wellhead housing is attached to the tubular connector utilizing a unique metal to metal seal.
A method of drilling a hydrocarbon well in a prepared drilling location comprising the following steps:
In hydrocarbon well drilling operations in which a bore hole is drilled by a drilling rig and the bore hole is lined by a production casing string concentrically disposed within a surface casing string and cemented therein, wherein bore hole pressures are controlled by a blowout preventer assembly, an apparatus allows the demobilization of the drilling rig and the removal of the blowout preventer assembly without a top joint of the production casing string disposed within a permanent wellhead and without a top joint of the surface casing string disposed within a permanent wellhead, wherein the apparatus comprises:
Dependencies are inferred from the claim text.