Published May 2020, Pg. 13-20
Section: Geology and geophysics
UOT: 553.98.061.12/.17
DOI: 10.37474/0365-8554/2020-5-13-20
Evaluation of oil-gas bearing potential associated with fold formation properties of Lower Kur depression and Baku archipelago
G.J. NasibovaThe article explores the oil and gas generation properties and hydrocarbon content of Lower Kur depression and Baku archipelago based on the studies of morphology, space position of local uplifts, types of faults, evolution of mud volcanoes, distribution properties of compressive stresses and earth temperature environment. It was defined that as a result of action of longitudinal and lateral folding mechanisms predominantly brachy-form structures had been formed, the anticline zones and trends of which show that their space position is controlled by compressive stresses arising within the narrow north-western part of the Iranian-Afghani plate. The folding process in Oligocene-Pliocene series of the South-Caspian depression basically takes place due to the dynamics of active Maikop clays. Local uplifts of reviewed area are originated no later than the end of the Miocene. Carried out analysis justifies that the intensity of folding processes within Lower Kur depression and Baku archipelago rises both in time and from the south-east towards the north-west. A diagram of vertical oil generation zoning for Lower Kur depression and Baku archipelago has been developed based on the earth temperature data, according to which it was established that the Upper Cretaceous, Paleogene-Miocene sediments and the Productive Series represent strata generating commercial oil and gas.
