06637517 is referenced by 75 patents.

The improved recovery of hydrocarbons from subterranean formations by hydraulically fracturing a subterranean formation is accomplished. Fracturing fluids using a viscosifying surfactant fluid containing viscosifying micelles, for example, wormlike micelles, are useful to improve recovery of hydrocarbons and limit the loss of fracturing fluid into the formation fracture face. The invention further relates to novel fracturing and acidizing methods useful for increasing hydrocarbon production, limiting water production, resisting fracturing fluid loss into the subterranean formation, and reducing the equipment requirements in mixing and pumping fracturing fluid. The action of viscosifying micelles of surfactant in aqueous zones of the subterranean formation diverts fracturing fluid or acid from the aqueous zones to the hydrocarbon-bearing zones and also facilitates the flowback of increased amounts of hydrocarbons once a fractured well is placed back on production. These methods selectively block the pore structure in a water-bearing zone and do not blocking the pore structure of a hydrocarbon zone at the formation face. The step for selectively blocking forms a plug of a viscous fluid containing viscosifying micelles in the pore structure of the water-bearing zone at the formation face.

Title
Compositions containing aqueous viscosifying surfactants and methods for applying such compositions in subterranean formations
Application Number
10/51842
Publication Number
6637517 (B2)
Application Date
January 17, 2002
Publication Date
October 28, 2003
Inventor
Ronnie L Thomas
Sugar Land
TX, US
Roger J Card
Paris
US
Frank F Chang
Sugar Land
TX, US
Mathew M Samuel
Katy
TX, US
Agent
John Ryberg
US
Brigitte Jeffery
US
Catherine Menes
US
Assignee
Schlumberger Technology Corporation
TX, US
IPC
E21B 43/26
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