E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/138 (2006.01) C09K 8/52 (2006.01) C09K 8/68 (2006.01) E21B 43/26 (2006.01)
Patent
CA 2485777
A method of treating a subterranean formation includes providing a treating fluid based on an aqueous fluid containing a thickening amount of a viscoelastic surfactant and a suspension of colloidal particles. The colloidal particles help to 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 c e. The method is particularly useful for fracturing operations in medium to high permeability formation.
Christanti Yenny
Couillet Isabelle
Davies Steven
Hughes Trevor
Sullivan Philip
Schlumberger Canada Limited
Smart & Biggar
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