Shell Oil Comapny

George Rodenbush

David A Huete

Lee K Brasted

A method is disclosed for conducting offshore well operations from an auxiliary vessel in support of a compliant platform. The auxiliary offshore drilling vessel is restrained with respect to the compliant platform in position adjacent the well bay of the compliant platform and vertically aligned with a selected well site for conducting well operations.

Method for conducting offshore well operations

A tension leg well jacket ('TLWJ') is disclosed which is configured to receive well operations support from an offshore drilling vessel docked thereto and to receive the production riser in transfer operations from the vessel to the TLWJ. This permits a minimal platform suitable for supporting production risers which is particularly useful in deep water applications.

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Houston, TX, United States of America

George Rodenbush