EVALUATION OF THE INFLUENCE OF COMPOSITIONS COMPOSITION ON THE QUALITY OF ACID TREATMENT OF DOWNHOLE FORMATION ZONE

Abstract

In the article the author evaluates the influence of composition of compositions on the quality of acid treatment of downhole formation zone.     Taking into account the lithological features of the rocks composing the productive formation, the degree of swelling of clayey rocks exposed to the action of selected solutions was determined. The following parameters were determined during the research on the selection of the formulation of fluids, providing the removal of sediments from the bottomhole during workover and current repair of wells: viscosity and sand-holding properties, stability of viscosity and sand-holding properties over time at different temperatures and concentrations of reagents used, the effect of contact with metal and freezing on the destruction of polymer solutions