Development and research of cutting fluids for stimulation of oil production on the basis of water-salt and acid solutions containing molecular surfactants complexes and water-soluble polymers

摘要

The results of research and development of viscoelastic systems' formulations are presented. These viscoelastic systems are based on industrial surfactants with polymer substance addition. Anionic and cationic surfactants employed for the research interacted with formation of molecular complex that generated micellar structures in aqueous systems. The following polysaccharide reagents were used as polymeric additives: carboxymethyl cellulose (CMC-600), Hydroxyethyl cellulose, Hydroxypropyl guar and xanthan-type biopolymers of brands Xanthan DRILLUX 1405 and Xanthan Gum E415. Investigations on water-soluble polymeric additives (0.1 wt. %) influence on rheological and surface-active properties of developed complexes of viscoelastic surfactants were conducted. Also the process of developed viscoelastic surfactants complexes destruction at contact with hydrocarbon phase was studied. Assessment of possibility for application of these complexes in technological processes of oil production was implemented.