Geological model of productive reservoir PK<sub>19</sub> structure at Verkhnekolik-Egan field of West Siberia
The article presents results of modeling structure of productive reservoirs of Verkhnekolik-Egan fields. In Lower Aptian the reservoir PK<sub>19 </sub>was productive, in top of which there is high resistance interlayer that allows with assurance to correlate a bed.<sub> </sub> Productive horizon PK<sub>19</sub> is divided into two oil-bearing beds: PK<sub>19</sub><sup>1</sup> PK<sub>19</sub><sup>2</sup> and with complicated geological structure and where there were discovered independent oil pools. Productive deposits are composed of continental facies - canal and floodplain. By results of well logging and core of wells the authors have mapped spreading of canal and floodplain facies with different rock-and-fluid properties. The floodplain parts occupy a larger area between canals. While approaching floodplain facies, production rate decrease is observed and approaching lithological screens with zero effective thickness generally predicts non-commercial inflows. There are noted a lot of small lithological screens in bed PK<sub>19</sub><sup>1</sup> and its development requires for project of flooding. It is recommended selective flooding, the wells should drill-in and develop a reservoir by advanced technologies. Reservoir development should be started from territory of main river canals, because just there the maximum thickness and respectively HC reserves are concentrated.