vorobjev info 5.2018 | oilandgasgeology

Якорь 1

S.V. Vorob'ev, P.A. Gorbunov, O.V. Maksimenko, D.Ya. Khabibullin

Thermal conditions of oil and gas deposits in the northern part of the West Siberian plate

DOI 10.31087/0016-7894-2018-5-29-35

The article describes the vertical and lateral regularities of reservoir temperatures changes in the sedimentary cover of the northern part of the West Siberian Plate (the territory of the Yamal-Nenets Autonomous District). According to generalization and systematization of the results of temperature surveys carried out in exploration wells, the authors conducted zoning of the territory of the Yamal-Nenets Autonomous District. Zoning describes the vertical and lateral changes of reservoir temperatures within sedimentary complexes containing main hydrocarbons resources. The established patterns are based on the regularity, according to which the reservoir temperatures in sedimentary cover section are approximated by linear equation. At the same time, the authors took into account the features of the tectonic and oil and gas geological zoning of the study area. Combining the thermo-zoning results and data from prospecting and exploration wells, as well as the materials of seismic studies, a set of 1 : 500 000 isotherm maps over the tops of major oil and gas bearing complexes in the north of Western Siberia was built. These maps can be used to predict reservoir temperatures in the promising areas not studied by drilling. Such information is necessary for the preliminary assessment of resources in new oil and gas deposits and for calculation of mud parameters. The obtained results are of great interest for geologists who are involved in planning of geological exploration and evaluation of the mineral resource base.

Key words: Western Siberia; Yamal-Nenets Autonomous District; reservoir temperature; forecast; productive complex; hydrocarbon field; oil; gas.

For citation: Vorob'ev S.V., Gorbunov P.A., Maksimenko O.V., Khabibullin D.Ya. Thermal conditions of oil and gas deposits in the northern part of the West Siberian plate. Geologiya nefti i gaza. 2018;(5):29–35. DOI: 10.31087/0016-7894-2018-5-29-35.

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