Compact hydrocarbon wellstream processing

US10563496B2 · kind B2 · utility

Assignee

• EQUINOR ENERGY AS · NO

Inventors

• Gry Pedersen Kojen · Porsgrunn, NO
• Lars Henrik Gjertsen · Trondheim, NO
• Andrea Carolina Machado Miguens · Trondheim, NO
• Arne Olav Fredheim · Trondheim, NO
• Cecille Gotaas Johnsen · Trondheim, NO
• Knut Arild Maråk · Trondheim, NO

Key dates

• Filing date: May 29, 2015
• Grant date: Feb 18, 2020
• Expiry date: Jul 18, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10L2290/06
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A system for offshore hydrocarbon processing may include a host at surface level, a subsea processing plant, and an umbilical connecting the host and the subsea processing plant. The subsea processing plant may be adapted to receive a multi-phase hydrocarbon stream from a wellhead and to output at least a hydrocarbon gas-phase stream satisfying a rich gas pipeline transportation specification to a pipeline. The umbilical provides a desiccant for drying the hydrocarbon gas, as well as power and control, from the host to the subsea processing plant.