Applying Passive Slec Technology to Study the Dynamics of Fluidal Processes on Oil Field Under Production

To study dynamic fluidal processes taking place during the production of HC it is proposed apply seismic emission (SE) waves instead of reflected seismic waves. SE-waves are generated as a result of changes in the stress-deformed state of fluid-saturated reservoir rocks. Described is a new passive seismic technology – Seismic Location of Emission Centers (SLEC) providing a real-time identification and location of SE centers arising due to dynamic fluidal processes. Presented are examples of applying SLEC on oil fields to map the direction of hydrofrac, advance of oil displacement front, positions of washed-out zones, and residual oil zones. SLEC-technology allows determine basic directions of hydro- and oil flowing, correlation between production rate and SE-parameters. This information can be used to improve the production efficiency.