Use of elastomers to produce gels for treating a wellbore

摘要

A method of treating an earth formation that includes introducing at least one blocked isocyanate in a liquid phase into the earthen formation; introducing at least one active hydrogen compound into the earthen formation; and contacting the blocked isocyante and the active hydrogen compound form an elastomeric gel is disclosed.

主权项

1. A method of treating an earth formation comprising:
introducing at least one blocked isocyanate, prepared by subjecting an isocyanate to a reversible blocking reaction with an acidic hydrogen-containing compound, in a liquid phase into the earthen formation; introducing at least one amine into the earthen formation; unblocking the isocyanate, wherein the isocyanate unblocks at a temperature in the range of 65° C. to 100° C.; and contacting the isocyanate and the amine to form an elastomeric gel.