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:
Feb. 14, 2023
Filed:
Apr. 18, 2018
Applicant:
Subsea 7 Norway As, Stavanger, NO;
Inventors:
Sigbjorn Daasvatn, Hornnes, NO;
Ratnam Sathananthan, Westhill, GB;
Assignee:
Subsea 7 Norway AS, Stavanger, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 17/02 (2006.01); E21B 47/001 (2012.01); B01D 17/04 (2006.01); B01D 17/06 (2006.01); B01D 19/00 (2006.01); C02F 1/24 (2006.01); E21B 43/36 (2006.01); E21B 43/40 (2006.01); C02F 103/10 (2006.01);
U.S. Cl.
CPC ...
B01D 17/0214 (2013.01); B01D 17/0205 (2013.01); B01D 17/045 (2013.01); B01D 17/06 (2013.01); B01D 19/0042 (2013.01); C02F 1/24 (2013.01); E21B 43/36 (2013.01); E21B 43/40 (2013.01); E21B 47/001 (2020.05); C02F 2103/10 (2013.01);
Abstract
A subsea multiphase fluid separation system has a gas separator for separating gas from a well stream containing oil. A water separation stage downstream of the gas separator has at least one dual pipe separator for separating water from the oil of the wellstream. A water treatment system for cleaning oil from water is produced by the water separation stage. On an oil outlet path, downstream of the or each dual pipe separator, there is an electrocoalescer and at least one second separator in series.