Offshore floating drilling platform for operation in ice-infested waters and harsh environment

US10494063B1 · kind B1 · utility

Assignee

• China Merchants Heavy Industry (Jiangsu) Co., Ltd · CN

Inventors

• Fan Zhang · Lake Barrington, US
• Jinguang WANG · Nantong, CN
• Siming Wang · Village of La Jolla, US
• Mingyuan Sun · Nantong, CN
• Zhengquan Zhou · Nantong, CN
• Lixin Xu · Nantong, CN
• Jiancheng Liu · Lo Wu, CN

Key dates

• Filing date: Jan 7, 2019
• Grant date: Dec 3, 2019
• Expiry date: Jan 7, 2039

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B7/128
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An offshore floating platform for operating in ice-infested waters and harsh environment for oil/gas drilling and exploration in Arctic area comprises four (4) sections, i.e., an upper cone, a transition section, a lower cone and a bottom frame. The upper cone, the transition section, the lower cone and the bottom frame are coincident with a centerline, and a through center well is designed around the centerline from top to bottom. The diameter at the bottom frame is smaller than that of the main body of the center well. The upper cone, the transition section and the lower cone are internally connected and divided into plural compartments. Through ballast compartments are designed outside the sidewall of the upper cone, the transition section and the lower cone vertically connected with a consistent cross-sectional area from top to bottom. Plural ballast compartments and void compartments are arranged within the bottom frame.