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 9267874 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 23, 2016

Filed:

Nov. 09, 2011
Applicants:

Maarten Lorenz, Amsterdam, NL;

Gerald Sprachmann, Amsterdam, NL;

Inventors:

Maarten Lorenz, Amsterdam, NL;

Gerald Sprachmann, Amsterdam, NL;

Assignee:

Shell Oil Company, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 17/00 (2006.01);
U.S. Cl.
CPC ...
G01N 17/00 (2013.01);
Abstract

Corrosion Under Insulation (CUI) of an insulated iron or other corrosion prone object () is detected by taking a sample () of the pore fluid from the pores of a permeable insulation layer () that covers at least part of the object () and analyzing the composition of the sample () on the presence of any tracer fluid, such as phospines, mercaptans, alcohols, acids, ketones and/or aldehydes emitted or acetic acid and/or butoxyethanol absorbed by any corrosion of the corrosion prone object () by a tracer fluid detection sensor ().


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