Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2006-12-05
2006-12-05
Tucker, Philip C. (Department: 1712)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C507S216000, C507S217000, C507S236000, C507S244000, C507S245000, C507S276000, C507S277000, C507S922000, C166S308200
Reexamination Certificate
active
07144844
ABSTRACT:
A process for enhancing the productivity of a formation consists of introducing into the formation a viscoelastic fluid which contains at least one surfactant, at least one quaternary amine polyelectrolyte, water, and a non-aqueous solvent. The surfactant forms aggregation structures or vesicles. The fluid, which significantly enhances fluid viscosity and thermal stability, is particularly effective as a diverting fluid to divert an acid treatment package from a high permeability or undamaged portion of a formation to a low permeability or damaged portion of a formation as well as a fracturing fluid. In addition, the fluid is useful for sand control completion.
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Alleman David
Qu Qi
BJ Services Company
Jones John Wilson
Jones & Smith, LLP
Tucker Philip C.
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