Method and apparatus for tensioning the tethers of a tension leg platform

Patent · Mon Nov 13 23:00:00 EST 1989

OSTI ID:7128685

Gunderson, R H

This patent describes a tension leg platform. It comprises: a foundation element secured to an ocean bottom location; a plurality of elongate, substantially vertical tethers, each of the tethers having a lower end secured to the foundation element and an upper end reaching a preselected distance below the ocean surface; a buoyant hull positioned at the ocean surface above the tethers, the hull having a plurality of vertically extending columns, the upper end of each tether being secured to the lower portion of a corresponding column; and a tether tensioning and securing system. Also described is a method for installing a tension leg platform at an offshore location.

• Assignee: Exxon Production Research Co., Houston, TX
• Patent Number(s): US 4881852; A
• Application Number: PPN: US 7-146989A
• OSTI ID: 7128685
• Country of Publication: United States
• Language: English

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