Methods and compositions for forming permeable cement sand screens in well bores
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United States of America Patent
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Apr 2, 2002
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N/A
app pub date -
Dec 13, 2000
filing date -
Jul 28, 2000
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Abstract
Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, an acid soluble particulate solid, a liquid hydrocarbon solvent soluble particulate solid, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid, water present in an amount sufficient to form a slurry, a gas present in an amount sufficient to form a foam and a mixture of foaming and foamed stabilizing surfactants.
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