Geology, geography and global energy

Scientific and Technical Journal

The latest tectonic movements and oil and gas bearing

2014. №2, pp. 15-22

Popkov Vasiliy I. - D. Sc. in Geology and Mineralogy Professor, Kuban State University, 149 Stavropolskaya st., Krasnodar, 350040, Russian Federation,

Dementeva Irina Ye. - Senior lecturer, Kuban State University, 149 Stavropolskaya st., Krasnodar, 350040, Russian Federation,

Kasarova Yelena V. - Post-graduate student, Kuban State University, 149 Stavropolskaya st., Krasnodar, 350040, Russian Federation,

On the example of the well-studied areas of the West considered the role of the Turan plate tectonic movements in the formation of zones of oil and gas, and individual deposits in the sediments of the platform cover. The study of geological history of the area in the Cenozoic has shown that in the Paleocene and Eocene, there were no significant tectonic events. Upsurge in motion, accompanied by an increase in the permeability of the vertical incision occurred in primediumiocene time. From this moment the geological history should be associated flow of hydrocarbons from the bulk of the underlying horizons in the Jurassic-Cretaceous sediments. The role of the subsequent neotectonic movement is, first of all, in the taking and destruction of hydrocarbon accumulations. The largest scale, these processes have achieved in postpontic time. In the time the whole area was out of the sea level, and there was a plan of morphological formation of modern western areas of the Turan plate. The intensity of the latest tectonic movements determines the stratigraphic range of oil and gas bearing of the cut, the situation in the context of the major reserves of oil and gas fields, the phase state of hydrocarbons. In areas of maximum "tectonic disclosure" (Central Mangishlak, North Buzachinsky vault) hydrocarbon accumulations largely destroyed. It is dominated by deposits of heavy oil (e.g. Karazhanbas, etc.) or deposits of bitumen (Karasyaz-Taspas, Tyubedzhik). The process of destruction of deposits continues at the present time. Very sensitive to the latest tectonic activity in the oil dissolved gas. A decline in the deficit of saturation pressure on oil gas oil and gas structures with less neotectonic activity. Found an increase in gas oil undersaturation deeper horizons in the fields of gas due to emigration.

Key words: latest tectonics, deposits, oil, gas, prospects of oil and gas, новейшая тектоника, месторождения, нефть, газ, перспективы нефтегазоносности