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Recent years, running of multistage hydraulic fracturing operations are wide-spread in horizontal wells and in mid-term fracing will become main influence method on pay zones in Russia. Against this background, question of evaluation and optimization of multiple frac operations is already open. In spite of the significant number of publications addressed the theme of fracture stages evaluation, there is still very much uncertainties in optimization of stages of hydraulic fracturing. Generally most of hydraulic fra...

The Volga-Ural oil and gas region (Russia) is the most geologically studied. Numerous studies have proved the relationship between neotectonic activity and oil-bearing structures of the sedimentary cover. Previously, a detailed fault map has been compiled for the crystalline basement of the region. In the conditions of depletion of traditional reserves in anticline traps, the most in-demand objects of further hydrocarbon searches are tectonically screened oil accumulation. Remote sensing and GIS techniques were us...

It is well known that the main purpose for all upscaling techniques related with homogenization of initial any heterogeneous property and substituting it with an effective value. Thus, the essence of upscaling is computing weighted average on the fine-grid to form coarse-grid considering representative elementary volume. The goal of this research work was experimental investigations of pore space distribution of carbonate rocks. Samples were collected from the Upper Permian ages core data. Samples bulk porosity we...

The Volga?Ural petroliferous basin is the oldest oil producing region of Russia. Therefore, most of the major oil and gas fields of traditional types here are already at the final stage of production. This provides for the increasing interest to develop unconventional resources of hydrocarbons associated with potential resources of the Upper Devonian?Lower Carboniferous (Tournaisian) Domanik-type sedimentary formations. This study focused on the geomechanical and petrophysical evaluation of the Domanik Formation a...

Determination of the present-day stress field tensor is one of the fundamental problems of modern geodynamics. Nowadays, world stress map (WSM) project provide a global compilation of information on the crustal present-day stress field. From a practical point of view, knowledge of the stress field allows us to solve a number of production problems related to the investigation and extraction of hydrocarbons in safety way. In particular, orientation of the main stresses and stress regime are necessary to set the bou...