Importance

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Abstract

A custom-manufactured clamshell plumbing fixture, or clamp, is provided, which precisely fits the irregular surface of a damaged oil-well riser pipe, or the surface of a blow-out-preventer, so as to tightly seal oil leaks. Using an optional gasket, the fixture functions as a plumbing adaptor with the damaged pipe at one joint, and a standard plumbing flange at another joint. Because of its rigid mechanical connection to the damaged pipe, a clamp of similar manufacture can also provide a solid platform for machine tools, allowing for reliable, precise cuts in damaged pipe or other devices, using a remote-controlled milling machine. The custom clamps are manufactured using techniques of digital object-capture and computer-controlled metal-working. Methods are discussed which can help to determine the exact shape of the surface to be sealed, and to manufacture and install the clamps and gaskets.

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First Claim