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.:

US 9951586 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 24, 2018

Filed:

Dec. 23, 2014
Applicant:

Shell Oil Company, Houston, TX (US);

Inventors:

Mark Theodoor Looijer, Rotterdam, NL;

Roald Arkesteijn, Rijswijk, NL;

Assignee:

SHELL OIL COMPANY, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/06 (2006.01); E21B 37/06 (2006.01); E21B 43/20 (2006.01); E21B 43/01 (2006.01);
U.S. Cl.
CPC ...
E21B 43/01 (2013.01); E21B 34/06 (2013.01); E21B 37/06 (2013.01); E21B 43/20 (2013.01);
Abstract

A method for inhibiting freezing of low salinity water (HO) in a subsea low salinity water injection flowline comprises providing the flowline with a pressure control system, which may include a high pressure pump and a pair of pressure shut in valves, which maintains an elevated fluid pressure within the flowline throughout low salinity water injection operations and shut in periods, during which periods the flowline remains filled with pressurized non frozen low salinity water (HO) that may have a temperature of about −2 degrees Celsius.


Find Patent Forward Citations

Looijer, Mark. (2018). Method and system for inhibiting freezing of low salinity water in a subsea low salinity water injection flowline (U.S. Patent No. 9951586). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9951586

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