Control of fluid loss in viscoelastic surfactant fracturing fluids of using polymers soluble in water

摘要

Abstract invention patent: "control of fluid loss in viscoelastic surfactant fracturing fluids of using polymers soluble in water.The present invention relates to a non crosslinked polysaccharides soluble in water can be agents for control of loss of fluid to fluid viscoelu00e1sticos surfactants (VES) used for stimulation (e.g., fracture) or completion of wells in recovery operations The hydrocarbons.The fluid may also include propante ves or gravel, if it is intended for use as a fracturing fluid or a fluid sealing of gravel, although these uses do not require that the fluid containing propante or gravel.Fluid loss control agents of water soluble polysaccharides, non cross linked may include, but not be limited to the gum, guar gum and derivatives thereof; cellulose and derivatives thereof; propylene glycol alginate; salts (e.g. sodium salts, potassium and calcium) of carrageenan io. TA, kappa and lambda; agar; xanthan gum; and the like; and / or mixtures of these.The fluid loss control agent may be added to the aqueous viscoelastic fluid treatment before the addition of ves, and / or at the same time and / or after see be added.