Investigation of Dependency of Elastic Wave Rate

Based on the measurements of kinematic and dynamic parameters of seismic waves, acquired data analysis and the correction of geological model of medium, it is proposed to study the extent of oil pool warming-up and the propagation of heated zone in order to estimate the effectiveness of warming-up during oil pool development. On the basis of VSP method we have tested an approach for the P-wave velocity estimation in the real geology conditions. It was determined that the warming-up of rocks saturated with heavy oils leads to the change of rock P-wave velocity. The influence of temperature on the velocity of P-waves on the different warming-up stages is different. Thus, on the basis of P-wave velocity measurements it is possible to define the position, size and movement of warming-up zone boundary in order to estimate the effectiveness of warming-up during oil pool development. This information is vital for the decision making regarding expediency and intensity of oil production.