Method of dissolving organic filter cake
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United States of America Patent
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Mar 7, 1989
Grant Date -
N/A
app pub date -
Jan 14, 1988
filing date -
Jan 14, 1988
priority date (Note) -
Expired
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Abstract
A method of increasing the production of hydrocarbons from a subterranean formation wherein an undesirable filter cake is present, resulting from the introduction of gelled polysaccharide containing fluids into the formation, comprising contacting the formation with an effective amount of a treatment fluid comprising a soluble source of fluoride ions present in an amount sufficient to provide a molar concentration of from about 0.01 about 0.5, having a pH in the range of from about 2 to about 4, whereby at least a portion of the filter cake is caused to dissolve.
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