The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2014
Filed:
Apr. 25, 2011
Yijian Zeng, Katy, TX (US);
Leiv Gunnar Wanvik, Houston, TX (US);
Tao Wang, Katy, TX (US);
Stein Rasmussen, Katy, TX (US);
Renjian LU, Houston, TX (US);
Yijian Zeng, Katy, TX (US);
Leiv Gunnar Wanvik, Houston, TX (US);
Tao Wang, Katy, TX (US);
Stein Rasmussen, Katy, TX (US);
Renjian Lu, Houston, TX (US);
Aker Solutions Inc., Houston, TX (US);
Abstract
A deep draft semi-submersible production and drilling platform unit with dry trees is described. The platform unit preferably comprises four columns, a ring pontoon, a two-axis symmetrical hull with draft in the range of 100 to 155 feet, top-tensioned risers with push or pull tensioners of preferred combined vertical stiffness of 10% to 30% of the platform water plane stiffness, a wellbay with a well spacing in the range of 12 to 18 feet, a riser guiding system supported by the pontoons or at an elevated level, topside facilities supported by a box type of deck structure, mooring lines, and catenary risers.