Aqueous drilling fluid additive
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United States of America Patent
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-
Jan 5, 1982
Issued Date -
N/A
app pub date -
Mar 18, 1980
filing date -
Sep 27, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to an aqueous solution of a filtration control agent for utilization in said aqueous drilling fluid, useful in a method of forming a filter cake on the wall of a well for the reduction of filtrate from said drilling fluid, which is effective at high temperatures and pressures, the terpolymer consisting essentially of: (1) an alkali metal acrylate units; (2) hydroxyalkyl acrylate units; and (3) acrylamide.
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Cited Art Landscape
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