Method for clearing debris in a bore

Details Method for clearing debris in a bore Method for clearing debris in a bore

1999-04-23

2000-12-26

Neuder, William

Wells

Processes

Cleaning or unloading well

E21B 3700

Patent

active

061643807

ABSTRACT:
The present invention provides a method for cleaning debris from a bore and includes injecting hydrophilic fibers selected from the group consisting of polyolefins, polyesters and nylons, suspended or dispersed in a water based or oil based liquid into the bore and forcing the suspension through the length of the bore, to its open end. In particular, the suspension is directed through sections of the bore holding quantities of debris formed from the drilling operation. The suspension loosens the debris and sweeps substantial quantities of debris from the bore, and acts to suspend the debris in the liquid in static suspension at times when the liquid is not being forced through the bore.

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