Method of completing poorly consolidated formations
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United States of America Patent
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Mar 21, 2006
Grant Date -
May 12, 2005
app pub date -
Nov 11, 2003
filing date -
Nov 11, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
It is proposed a method for completing an unconsolidated interval, including particulates, in a subterranean formation, including a consolidation steps. The consolidation step is performed by injection of an aqueous solution of colloidal particles with a pH modifier and/or an ionic-strength modifier. A hard gel is formed that holds the particulates together. The consolidation is followed by hydraulic fracturing. Diversion towards area of less permeability may be enhanced by the use of micrometric particles.
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