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1. (WO2017176244) LUBRICANT FOR DRILLING AND DRILL- IN FLUIDS

Pub. No.:    WO/2017/176244    International Application No.:    PCT/US2016/025897
Publication Date: Fri Oct 13 01:59:59 CEST 2017 International Filing Date: Tue Apr 05 01:59:59 CEST 2016
IPC: C09K 8/04
C09K 8/32
Applicants: HALLIBURTON ENERGY SERVICES, INC.
Inventors: GHOSH, Shubhajit
NZEADIBE, Kingsley, Ihueze
GUO, Li
Title: LUBRICANT FOR DRILLING AND DRILL- IN FLUIDS
Abstract:
A lubricant composition containing a vegetable oil, and at least two nonionic surfactants. The vegetable oil may be castor oil, and the nonionic surfactants may include sorbitan esters and polyethoxylated sorbitan esters. Also provided is a wellbore fluid containing a base fluid and a lubricant containing vegetable oil and at least one nonionic surfactant. Methods of introducing the lubricant composition and wellbore fluids containing the lubricant composition into a subterranean formation zone are also provided.