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:
May. 10, 2016
Filed:
Jan. 06, 2011
Christopher Michael Jones, Houston, TX (US);
Robert E. Engelman, Katy, TX (US);
Michael T. Pelletier, Houston, TX (US);
Mark A. Proett, Missouri City, TX (US);
Thurairajasingam Rajasingam, Kilcurry, IE;
Christopher Michael Jones, Houston, TX (US);
Robert E. Engelman, Katy, TX (US);
Michael T. Pelletier, Houston, TX (US);
Mark A. Proett, Missouri City, TX (US);
Thurairajasingam Rajasingam, Kilcurry, IE;
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
The present invention relates to a method of detecting synthetic mud filtrate in a downhole fluid including placing a downhole tool into a wellbore, introducing a downhole fluid sample into the downhole tool, analyzing the downhole fluid sample in the downhole tool, producing at least two filtrate markers from the analyzing of the downhole fluid sample and converting the at least two filtrate markers by vector rotation to a sufficiently orthogonal signal. The first pumped fluid sample giving initial plateau readings can be a proxy for 100% drilling fluid having an initial orthogonal signal and subsequent samples can be converted to orthogonal signals that are referenced to the first pumped fluid signal to give a calculation of percent contamination of the formation fluid.