Conocophillips Company

Keppel Offshore & Marine Usa, Inc.

Keppel Offshore & Marine Technology

Yew Yuen Chow

Tak On Cheung

Kok Seng Foo

Randall Scott Shafer

Peter George Noble

Dominique P Berta

Chin Kau Quah

Cynthia Wang

The invention relates to a jack-up rig. The inventive rig would work like a conventional jack-up rig while in open water with the hull jacked up out of the water. However, in the event of ice conditions, the hull is lowered into the water into an ice defensive configuration. The hull is specifically shaped with a lower portion that is an ice-bending surface to bend and break up ice that comes in contact with the hull while in the ice defensive configuration. Furthermore, the jack-up rig comprises at least two derricks.

Dual-derrick ice-worthy jack-up drilling unit

A single heavy lift system is made of modular units, each of which has a pair of supporting legs carrying a transverse beam therebetween. The beam is engaged to the supporting legs through jackup units that allow the transverse beams of several modular units move in unison and thus increase lifting capacity of the system. The modular units can be formed as modular, self-propelled units, transported to the site, where the lifting task is to be performed if necessary. The system can be positioned in a dry dock or offshore.

Modular heavy lift system

Growing community of inventors

Houston, TX, United States of America

Yew Yuen Chow