Inventors:
Qi Qu - Spring TX, US
David Alleman - Houston TX, US
Assignee:
BJ Services Company - Houston TX
International Classification:
C09K 8/68
US Classification:
507214, 507216, 507217, 507236, 507244, 507245, 507276, 507277, 507922, 1663082
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.