Earth boring – well treating – and oil field chemistry – Well treating – Contains inorganic component other than water or clay
Reexamination Certificate
2006-07-25
2006-07-25
Sellers, Robert (Department: 1712)
Earth boring, well treating, and oil field chemistry
Well treating
Contains inorganic component other than water or clay
C507S219000, C507S271000, C507S275000
Reexamination Certificate
active
07081439
ABSTRACT:
Disclosed are methods of treating subterranean formations by first providing a suspension of colloidal particles prior to the injection of viscoelastic based treatment fluid, and injecting the treatment fluid into a well. The colloidal particles reduce fluid loss into the formation. According to a second embodiment, the treating fluid includes a hydrophobically-modified polymer, said hydrophobically-modified polymer being present at a concentration between approximately its overlap concentration c* and approximately its entanglement concentration ce. The method is particularly useful for fracturing operations in medium to high permeability formations.
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Christanti Yenny
Couillet Isabelle
Davies Stephen
Hughes Trevor
Sullivan Philip
Cate David
Curington Tim
Nava Robin
Schlumberger Technology Corporation
Sellers Robert
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