Wells – Processes – Placing fluid into the formation
Reexamination Certificate
2007-06-25
2008-10-07
Bates, Zakiya W. (Department: 3676)
Wells
Processes
Placing fluid into the formation
Reexamination Certificate
active
07431089
ABSTRACT:
In a method of treating a sandstone-containing subterranean formation penetrated by a wellbore, a slurry of a carrier fluid containing a surface modification agent of at least one of a hydrolyzable organosilicon compound, a phosphonate compound or a combination of these is formed. The slurry is introduced into the wellbore at or above the fracture pressure of the formation. A sandstone-dissolving material is introduced into the wellbore with or subsequent to introduction of the slurry. The surface modification agent may be encapsulated within an encapsulating material. A composition for use in treating sandstone-containing subterranean formations is also provided. The composition includes an aqueous carrier fluid containing an encapsulated surface modification agent of at least one of a hydrolysable organosilicon compound and a phosphonate compound that is encapsulated within an encapsulating material.
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Couillet Isabelle
Still John W.
Bates Zakiya W.
Cate David
Derk Fonseca
DiTrani Angela M
Nava Robin
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