Patent Number: 8,716,197

Title: Lubricating compositions for use with downhole fluids

Abstract: Adding a lubricant having a metal stearate and polytetrafluoroethylene (PTFE) to a downhole fluid may lubricate a first surface once the downhole fluid has been circulated within a subterranean reservoir wellbore. Friction, torque, and/or drag may be reduced when the lubricated first surface contacts a second surface. The first surface may be or include, but is not limited to a wellbore casing, a drill string, a pipe, a formation, a drill bit, a metal surface within a mud motor, formation evaluation tool, at least one drilling tool, and combinations thereof. One or both of the first and second surfaces may be metal. The downhole fluid may be or include, but is not limited to, a drilling fluid, a completion fluid, a fracturing fluid, a drill-in fluid, a workover fluid, and combinations thereof.

Inventors: Otto; Michael J. (Cypress, TX), Clapper; Dennis K. (Houston, TX)

Assignee: Baker Hughes Incorporated

International Classification: C09K 8/00 (20060101); C09K 8/06 (20060101)

Expiration Date: 5/06/12018