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:
Sep. 03, 2013
Filed:
Aug. 22, 2012
Sandeep D. Kulkarni, Maharashtra, IN;
Sharath Savari, Maharashtra, IN;
Arunesh Kumar, Maharashtra, IN;
Matthew L. Miller, Houston, TX (US);
Robert Murphy, Houston, TX (US);
Dale E. Jamison, Houston, TX (US);
Sandeep D. Kulkarni, Maharashtra, IN;
Sharath Savari, Maharashtra, IN;
Arunesh Kumar, Maharashtra, IN;
Matthew L. Miller, Houston, TX (US);
Robert Murphy, Houston, TX (US);
Dale E. Jamison, Houston, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A method for determining a Plug Normal Stress Difference (ΔN) may include providing a test base drilling fluid that is characterized by N; adding a first concentration of a test particulate to the test base drilling fluid; adjusting the concentration of the test particulate in the test base drilling fluid to achieve a minimum concentration of the test particulate in the test base drilling fluid that will substantially plug a tapered slot, wherein the test base drilling fluid with the minimum concentration of the test particulate is characterized by N; and calculating ΔN=|N|−|N| wherein each First Normal Stress Difference is measured by the same procedure.