Viscoelastic surfactant gels with reduced salt concentration

Details Viscoelastic surfactant gels with reduced salt concentration Viscoelastic surfactant gels with reduced salt concentration

C - Chemistry, Metallurgy

09

K

C09K 8/70 (2006.01) C09K 8/516 (2006.01) E21B 43/26 (2006.01)

Patent

CA 2547919

A well bore treatment fluid of viscoelastic surfactants and methods for increasing the viscosity of the fluid at high temperature without increasing its salt concentration by adding a organic hydrophilic-lipophilic compound and reducing the salt concentration below 6 per cent.

L'invention concerne un fluide de traitement de forage à base de tensioactifs viscoélastiques, ainsi que des procédés pour augmenter la viscosité de ce fluide à une température élevée, sans augmenter sa concentration en sel, par addition d'un composé hydrophile-lipophile organique et réduction de la concentration en sel de manière qu'elle soit inférieure à six pour cent.

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