Use of direct epoxy emulsions for wellbore stabilization

Details Use of direct epoxy emulsions for wellbore stabilization Use of direct epoxy emulsions for wellbore stabilization

C - Chemistry, Metallurgy

09

K

C09K 8/508 (2006.01) C09K 8/516 (2006.01) E21B 33/13 (2006.01) E21B 33/138 (2006.01)

Patent

CA 2606367

A direct emulsion wellbore fluid, including: a continuous non-oleaginous phase; a discontinuous oleaginous phase; a stabilizing agent; an oil-miscible epoxy- based resin; and a hardening agent; wherein the wellbore fluid is a stable emulsion having a viscosity greater than 200 cps. In some embodiments, the hardening agent is an oil-miscible hardening agent; in other embodiments, the hardening agent is an oil-immiscible hardening agent.

Émulsion directe d'un fluide de puits de forage, comprenant une phase non oléagineuse continue; une phase oléagineuse discontinue; un agent de stabilisation; une résine à base d'époxy miscible dans le pétrole; un agent de durcissement; où le fluide de puits de forage est une émulsion stable dont la viscosité est supérieure à 200 cps. Dans certains cas, l'agent de durcissement est un agent de durcissement miscible dans le pétrole; dans d'autres, il s'agit d'un agent de durcissement immiscible avec le pétrole.

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