At DTEK Oil&Gas, 3D digital field modeling has become an integral part of decision-making on exploration and development of fields, starting from creating a geological model of hydrocarbon deposits and monitoring reserves to planning drilling, finding optimal ways of development, analyzing well stock performance, including evaluating the effectiveness of stimulation methods. The company designed and drilled five of the seven wells of the Machukhske field based on data of real-time geological and technological models. The drilling data confirm the reliability of the geological and hydrodynamic models, and the discrepancy between the forecasts of models and the actual operating data does not exceed 5%. High flow rates and stable well performance are one of the results of using 3D modelling.
Exploration and Development Director of DTEK Oil&Gas Ivan Gafych emphasized: “Digital 3D models of fields allow, in comparison with the traditional approach, to take into account the changes in the geometry and parameters of hydrocarbon deposits in the interwell space much more accurately, to predict the results of data processing in detail, and display any field characteristics and forecasts in real time. This method allows to quickly carry out multivariate modeling to make the necessary management decisions".
As noted by the Head and experts of the SCMR, the work was done at a high professional level and deserves a positive assessment. The first example of using digital geological and hydrodynamic models of DTEK Oil&Gas for reserves estimation showed that this approach leads to a more reliable estimation of field reserves using the volumetric method and planning its development. Experts recommend that all Ukrainian oil and gas producing companies apply 3D modeling in the geological and economic assessment of hydrocarbon reserves and make its use a mandatory practice when calculating and testing oil and gas reserves in the SCMR.
