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AssigneeChevron U.S.A. Inc.
InventorsJarred Christopher Sharp, Scott Oren Crook, Jimmie Dean Adkins, Daniel Christopher Kefford, Edward Shintaro Nakajima, Jean Michael Thibodeaux
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Disclosed is an apparatus for sealing and severing a subsea pipe adapted to convey fluids, e.g., hydrocarbons, and systems and methods using such apparatus. The apparatus includes a housing adapted to attach to the pipe, a piercing tool for providing an opening in the pipe at a predetermined location and a mechanism for establishing fluid communication between a source of sealant material and space within the pipe adjacent the opening in the pipe, and a cutting mechanism for cutting the pipe. Methods disclosed include piercing the pipe to form an opening, injecting sealant material through the opening into the pipe to form a fluid-tight seal, and cutting the pipe through the seal to form sealed cut ends.
A method for sealing and severing a pipeline adapted to convey fluids, the method comprising:
An apparatus for sealing and severing a pipeline comprising:
An apparatus for sealing and severing a pipeline comprising:
Dependencies are inferred from the claim text.