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:
Jan. 20, 2015
Filed:
Mar. 06, 2010
Applicants:
Shadaab Syed Maghrabi, Thane, IN;
Vikrant Bhavanishankar Wagle, Mumbai, IN;
Kushabhau Dagadu Teke, Pune, IN;
Dhanashree Gajanan Kulkarni, Pune, IN;
Kunal Sharad Kulkarni, Dombivil, IN;
Inventors:
Shadaab Syed Maghrabi, Thane, IN;
Vikrant Bhavanishankar Wagle, Mumbai, IN;
Kushabhau Dagadu Teke, Pune, IN;
Dhanashree Gajanan Kulkarni, Pune, IN;
Kunal Sharad Kulkarni, Dombivil, IN;
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/02 (2006.01); C09K 8/36 (2006.01);
U.S. Cl.
CPC ...
C09K 8/36 (2013.01);
Abstract
An invert emulsion drilling fluid, and a method of drilling with such fluid, having improved rheology at low mud weights and high temperatures. The improved rheology is effected with addition of hydrophobic amines, most preferably dimer diamines.