USE OF A SPECIAL LOG COMPLEX FOR STUDYING THE PROPERTIES OF RESERVOIR FLUIDS AND ROCKS OF THE SEDIMENTS OF THE CRETACEOUS AND JURASSIC AGES OF THE ARYSTANOVSKOYE FIELD

The properties of formation fluids and reservoir rocks of the Cretaceous and Jurassic periods deposits of the Arystanovskoye field are given in the article. In the A-418 well drilled within a new poorly explored area, the special well logging methods have been used to assess the prospects of the area and identify possible watering out: multi-frequency electromagnetic propagation logging (MEPL) Dielectric Scanner and high resolution nuclear magnetic logging (NML) CMR-Plus. Properties of formation fluids and reservoir rocks of the Cretaceous and Jurassic deposits of the Arystanovskoye field were determined using these methods. The qualitative characters of reservoirs were used for reservoir quality discrimination such as: decreased values of natural radioactivity, volume density and hydrogen content, clay cake availability, availability of radial penetration profile by electrical resistivity diagrams. The results of the research can be used during the selection of development targets, the selection of methods for hydrocarbons recovery. The relevance of this study is confirmed by the fact that the Arystanovskoye field is currently under development. The research of reservoir rocks in the new A-418 well within the 801–3095m interval will help to perform the reserves update and choose the production method.