About Interpretation of Seismic Data Based on RTH Speed-Attributes

Summary One of the most important directions in the national Russian energy policy strategy until 2035 is the development of hard-to-recover reserves. In the word «hard-to-recover reserves» such categories as bituminous, extra-viscous, high-viscosity oil are included. In the practice of operating mechanical wells, the issue of introducing thermal effects by heating oil with a heater without shutting down the well itself becomes important. At present, the theoretical and working field experience with downhole heaters has been accumulated, however, no systematic ideas about the effectiveness of this kind of method have been presented. This paper considers the issue of analyzing the thermal effect in the well during the operation of the downhole heater and determining the most optimal operating conditions. In the study, the first stage was to assess the effect of heating the fluid and the bottomhole zone of the productive formation on its physico-chemical properties. At the second stage, the technological characteristics of the heater were calculated depending on the individual oil field properties. As a result of the work, it was found that this method is applicable for shallow, vertical wells with high-viscosity oils with a reservoir temperature below 30 degrees.