Patent Number: 7,784,566

Title: Bit balling treatment

Abstract: A solid body contains a surfactant and crushed walnut hulls. The solid body is shaped to predetermined dimensions that permit passage through the central interior opening of drill pipe. The solid body dissolves in drilling mud for delivery of a pill to the annulus through the drill bit nozzles. The pill is an effective treatment against bit balling.

Inventors: Gregg; Harold (Kemp, TX)


International Classification: E21B 7/18 (20060101); C09K 8/035 (20060101)

Expiration Date: 8/31/12018