Impact of Assessment of Oil and Gas Horizons on Reliability of Reserve Estimation

It is well known that the success of any oil company based on the state of the reserves-referenced oil and gas production. The growth of actual reserves, which are ready for their recovery in the near and foreseeable future, is a strategically important task for each oil company and generally for the state. Therefore, it is important to update the estimation of the hydrocarbon potential of the producing fields continuously by using new methods and technologies. In the connection with this, the problem considered in this paper is relevant. Conclusions: - In order to enhance the evaluation of reserves and resources of the fields, the more detailed approach in the selection of evaluation objects. On the example of the horizons examined partly (divided into objects) it is shown the deviation from the accepted reservoir evaluation system Detailed approach also allows to quickly analyze and evaluate different exploitation options for enhanced oil recovery. - Such approach allows to adjust and optimize the process of development and redevelopment of hydrocarbon horizons, and this ultimately affects the economic efficiency of the exploitation (in addition to the clarification of hydrocarbon reserves, explore the nature of saturation in 3D (by area and the vertically))