Features of the geological structure of the deposits of formation III of Zapadno-Inskoye field
UDC: 550.8
DOI: -
Authors:
MULYAVIN SEMYON F.
1,
BEMBEL SERGEY R.1,
STESHENKO IRINA G.1,
BAZHENOVA OLGA A.1
1 Tyumen Industrial University, Tyumen, Russia
Keywords: Zapadno-Inskiy license area, Sargaevskiy, Timanskiy, Dzherskiy horizons, Devonian deposits, deposit, well, oil
Annotation:
Zapadno-Inskoye oilfield is classified as a very complex geological structure for prospecting and exploration. The deposit is multi-layered, large in terms of the number of recoverable reserves, undiscovered. The oil and gas content is confined to the Devonian deposits.
The section of the Devonian sediments is composed of an uneven alternation of clayey, calcareous, siltstone and mudstone sandstones. According to the lithological and physical features of the rocks in the section, terrigenous strata I, A, II and III are distinguished, separated by powerful in batches of mudstones.
Tectonic disturbance and fracturing of the section play an important role in the peculiarities of oil and gas accumulation and distribution of reservoirs over an area.
Reservoirs of productive layers of terrigenous type, porous, low-permeability.
Oil inflows in Zapadno-Inskoye field were obtained in terrigenous deposits of stratum III (D2ef), stratum A (D3tm) of the Middle and Upper Devonian.
25 oil deposits have been identified in four productive formations. The article analyzes the features of the geological structure and conditions of oil and gas accumulation of productive formation III (Devonian deposits).
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