Remedial well bore sealing methods and compositions
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United States of America Patent
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Jan 11, 2000
Grant Date -
N/A
app pub date -
Apr 14, 1998
filing date -
Apr 14, 1998
priority date (Note) -
Expired
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Abstract
The present invention relates to improved methods and compositions for sealing subterranean zones penetrated by well bores to reduce their permeabilities and increase their compressive strengths. The methods basically comprise the steps of introducing an aqueous sealing composition into a subterranean zone comprising a polymerizable monomer, a polymerization initiator, a hardenable epoxide containing liquid and a hardening agent, placing the sealing composition by way of the well bore into the subterranean zone and allowing the sealing composition to polymerize and harden whereby the well bore is sealed.
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