Method for clearing debris in a bore
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United States of America Patent
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-
Dec 26, 2000
Issued Date -
N/A
app pub date -
Apr 23, 1999
filing date -
Mar 17, 1997
priority date (Note) -
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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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