Method for rapid installation of a smaller diameter pressure...

Details Method for rapid installation of a smaller diameter pressure... Method for rapid installation of a smaller diameter pressure...

2007-09-11

2007-09-11

Bagnell, David (Department: 3672)

Wells

Processes

Assembling well part

C166S072000, C166S084500

Reexamination Certificate

active

11021941

ABSTRACT:
The method for rapid installation of a smaller diameter pressure control device usable on an annular BOP or any type of BOP. The step are first installing a flange with a threaded profile upon an annular BOP. Next, install a bell nipple on the flange, then install a first test plug in the base of the BOP or the base of the stack of BOPs. Then install a second test plug into the threaded profile of flange. Perform a pressure test on the flange and all sealing aspects of the annular BOP; depressurizing the flange and removing the test plug. Install a thread protector between flange and the bore of the annular BOP. Next initiate drilling operations; and upon indication of the need for wireline operations, or adapting the existing BOP to smaller working diameter pressure control device, remove the thread protector and install a high pressure assembly.

REFERENCES:
patent: 6390194 (2002-05-01), Young et al.
patent: 6817421 (2004-11-01), Dallas
patent: 2005/0006103 (2005-01-01), McGuire et al.

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