Method of removing flow-restricting materials from wells
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United States of America Patent
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-
Sep 17, 1985
Grant Date -
N/A
app pub date -
Mar 19, 1984
filing date -
Mar 19, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Flow-restricting materials containing epoxy resins present in a well treated with an epoxy resin, for the purpose of coating and consolidating unconsolidated sand adjacent the well and/or gravel packing in the well, or of coating metallic equipment in the well, to prevent corrosion or the deposition of organic or inorganic solids on the equipment, by contacting the flow-restricting material with a solvent composition, comprising, N-methyl-2-pyrrolidone and a diluent in an amount of 0 to 80% by wt., for a time sufficient to form a flowable fluid and removing the flowable fluid from the well. Combination well treatments include consolidating sand and/or gravel in a well or coating metallic equipment in the well with an epoxy resin and, thereafter, subjecting the treated well to the above solvent treatment to remove flow-restricting materials from the well.
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