Composition And Method For Relief Of Differential Sticking During Drilling
US Patent:
5671810, Sep 30, 1997
Filed:
Nov 13, 1995
Appl. No.:
8/558271
Inventors:
Richard Hodge - Ponca City OK William S. Halliday - Houston TX Thomas Daves - Houston TX Thomas Carter - Ponca City OK
Assignee:
Baker Hughes Incorporated - Houston TX
International Classification:
E21B 2100, E21B 3103
US Classification:
166301
Abstract:
A composition and method for use in freeing differentially stuck pipes is presented, comprising a hydrocarbon, acetic acid and a surfactant. The composition frees stock pipes quickly, thus reducing down-time during the process of drilling a subterranean well.