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.

Date of Patent:
Nov. 03, 2020

Filed:

Nov. 27, 2018
Applicant:

Statoil Petroleum As, Stavanger, NO;

Inventors:

Knut Arild Maråk, Trondheim, NO;

Arne Olav Fredheim, Trondheim, NO;

Bernt Henning Rusten, Jakobsli, NO;

Lars Henrik Gjertsen, Jonsvatnet, NO;

Baard Kaasa, Kongsberg, NO;

Assignee:

EQUINOR ENERGY AS, Stavanger, NO;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/26 (2006.01); C10L 3/08 (2006.01); C10L 3/10 (2006.01); E21B 43/36 (2006.01); E21B 43/40 (2006.01); B01D 3/36 (2006.01);
U.S. Cl.
CPC ...
B01D 53/26 (2013.01); B01D 3/36 (2013.01); C10L 3/08 (2013.01); C10L 3/106 (2013.01); C10L 3/107 (2013.01); E21B 43/36 (2013.01); E21B 43/40 (2013.01);
Abstract

A method and system for dehydration of a gas phase and hydrate inhibition of a liquid hydrocarbon phase in a multiphase hydrocarbon fluid stream containing water. The method may include (i) separating the hydrocarbon fluid stream into a liquid phase and a first gas phase, (ii) adding hydrate inhibitor to the first gas phase, and (iii) separating off condensed liquids and a second gas phase. The first gas phase has a water dew point that is lower than the initial multiphase hydrocarbon fluid stream and the second gas phase has a lower water dew point than the first gas phase. The hydrate inhibitor has a water content that is low enough to enable it to dry the first gas phase, the hydrate inhibitor being separated off with the condensed liquids and mixed with a part or all of the liquid phase from the separation to inhibit the liquid phase.


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