Remedial well bore sealing methods and compositions

Details Remedial well bore sealing methods and compositions Remedial well bore sealing methods and compositions

1998-04-14

2000-01-11

Bagnell, David

Wells

Processes

Cementing, plugging or consolidating

166300, 405264, 523130, E21B 3313, E02D 312

Patent

active

060125241

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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