Increase the Efficiency of the Forecast of Oil and Gas TRAPS Tight Oil (Hadumskaya Suite Ciscaucasia)

Oil tight oil (Hadumskaya Suite Ciscaucasia) is a serious object of future production using new technologies. Hadumskaya Suite dedicated to the Maikop series sediments (early-middle Oligocene), represented by dark-grey and brown clays with interbeds of marls. In many cases, hydrocarbon deposits are associated with fractured schistose strata.

Hadumskaya Suite on lithological grounds divided into 3 horizons: the lower – przejscie, medium – olbinski (ostectomy layer), the upper horizon of Maraskino beams. Geochemical studies of sediments of the Oligocene showed that they were deposited in a reducing atmosphere. Organic matter presents fine sapropel formations of nature and, to a lesser extent, inclusions humus-lignite material. The content Sorgue decreases with increasing carbonate rocks. On the assessment of the petroleum generation potential of large capacity to generate hydrocarbons from sapropelic-humic and humic-sapropelic type of organic matter Oligocene rocks. It is characteristic geilweilerhof (pore) pressure. Our research on the evaluation of pore pressure gradients in HS, it was found that in those intervals where gadomski retinue gradients of pore pressure was normal, there was formed deposits of oil. Here clay rocks Hadumskaya Suite sealed, as it does not contain abnormally high pore pressures. As a consequence, in the interval of occurrence Hadumskaya clay rocks could crack, leading to the formation of cholesterol fractured reservoirs and subsequent to the formation of deposits