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This work is investigation of the group composition of the bitumoids of Domanic shale deposits (Romashkino oilfield in the Volga-Ural petroleum and gas Basin). The samples were taken from different depths for this well. X-ray diffraction analysis revealed that the productive deposits are carbonate reservoirs consist of 92 wt% calcite. The extracted kerogen is of type II according to the Van Crevelin diagram, based on the ratio (H / C) and (O / C). It was found that the objects of the study differ in the mass conte...

The paper reveals the distinctive features of the change in the composition of natural bitumen - asphaltite from from the sandstones of the Permian sediments of the Spiridonovsky field in the territory of Tatarstan, in model experiments at a temperature of 250 °C, characteristic for steam-thermal impact on the formation, and the pressure in the system of not more than 2 MPa. The choice of low pressure is due to the fact that bituminous rocks in the Permian sediments occur at relatively shallow depths in the near-s...

In a large competitive environment in which today foundry exist are more important is production of castings with high quality and high economic efficiency. Therefore, the use of 3D software and simulation programs is necessary in the pre-production stages. In them it is possible to design, construct and simulate filling and solidification of castings in the foundry mould, design ingate system and feeder system. A properly designed and calculated ingate and feeder system is the first prerequisite for producing of ...