Method of cleaning a well bore prior to cementing

Details Method of cleaning a well bore prior to cementing Method of cleaning a well bore prior to cementing

1998-01-21

1999-05-18

Schoeppel, Roger

Wells

Processes

Cleaning or unloading well

1662701, 507929, E21B37/06

Patent

active

059042087

ABSTRACT:
Aqueous and non-aqueous systems for cleaning a section of a subterranean well borehole and casing prior to cementing. A series of spacer fluids are introduced into the borehole to displace drilling fluid and to provide clean and water wet casing and borehole surfaces of the cleaned section of well bore. The cleaned section of the well bore will provide surfaces for superior bonding of the cement to the surfaces.

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Ashland Chemical Company, Division of Ashland, Inc., "Solvent Properties Chart", 1995.

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