№ 4, 2006Download the article
Regional regularities of change of oil-gas potential of Meso-Cenozoic deposits within North-East Azerbaijan and South Dagestan
Institute of Geology and Geophysics of Azerbaijan National Academy of Sciences, AZ1143, Baku, H.Javid av., 119
The paper deals with regional regularities of change of oil-gas potential of Meso-Cenozoic deposits within the NE Azerbaijan and South Dagestan. There has been taken an effort to product possible stratigraphic interval of oil-gas potential in the Yalama-Khudat zone, proceeding from the determined regularity and its relation with geological structure of the investigated regions. Prevalence of liquid HC in the subsided zone (Kayakend, Izberbash, Achi-Su, Inchkhe-more in the South Dagestan and Siazan monocline and Shurabad in the NE Azerbaijan) has been determined. The areas related to a large Samur arc with a high level of occurrence of a surface of Jurassic rocks (Khoshmensil, Dag.Oqny) and Paleogene-upper Cretaceous deposits are outside the zone of oil-generation and are characterized by prevailing gas-potential are oil-gas potential (field Duzlak). For this reason, as main objects of exploration in Yalama-Khudat zone, there have been identified Jurassic (prospective for exploration of mainly gas deposits) and Cretaceous (prospective in respect of liquid HC). Prospects of oil-gas potential of the Cretaceous deposits are associated with the SW slopes of uplift (non-anticline type of deposits), faced towards the South Dagestan-Zeikhur depression. The arcs of uplifts are of interest only from the point of view of gas potential of Jurassic deposits.