Invert drilling fluids having enhanced rheology and methods of drilling boreholes

US8936111B2 · kind B2 · utility

Assignee

• Halliburton Energy Services, Inc. · US

Inventors

• Shadaab Syed Maghrabi · Summerville, US
• Vikrant Wagle · Dhahran, SA
• Kushabhau D. Teke · East Chicago, US
• Dhanashree Gajanan Kulkarni · Pune, IN
• Kunal Sharad Kulkarni · Kalyan-Dombivli, IN

Key dates

• Filing date: Mar 6, 2010
• Grant date: Jan 20, 2015
• Expiry date: Mar 17, 2032

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B43/16
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

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.