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:
Apr. 28, 2020
Filed:
Jun. 17, 2016
Nov Subsea Products As, Asker, NO;
Chevron U.s.a. Inc., San Ramon, CA (US);
Eirik Bjerve Sund, Bærums Verk, NO;
Jan-Otto Reimers, Oslo, NO;
Gudmund Roger Totland, Åsgårdstrand, NO;
Christopher John Kalli, San Ramon, CA (US);
Russell Evan Cooper, San Ramon, CA (US);
NOV SUBSEA PRODUCTS AS, Asker, NO;
CHEVRON U.S.A. INC., San Ramon, CA (US);
Abstract
Method and system for separation of produced water into a water fraction, a solids fraction and a hydrocarbon fraction, comprising feeding produced water into a collapsible flexible bag maintained subsea by a protection structure; operating the flexible bag at an overpressure and thereby providing a predefined geometry of the flexible bag; maintaining the produced water in the flexible bag to allow for gravitational separation of the solids fraction with a higher density than water in a lower section and optionally separation of the hydrocarbon fraction with a lower density than water in an upper section; removing the water fraction from a section above the lower section; optionally removing hydrocarbons from the upper section and replacing the flexible bag to remove the solids fraction.