-
oa Experience of the 3D interpretation of gravity data in the southeast of Volyno-Podillya
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Geoinformatics: Theoretical and Applied Aspects 2020, May 2020, Volume 2020, p.1 - 5
Abstract
The southeastern part of Volyno-Podillya in the oil and gas prospective is considered to be poorly promising. Nevertheless, some prospects are associated with structural forms on the surface of Cambrian rocks and with the rocks of the crystalline basement. Given the scarcity of drilling and seismic data, the role of other geological and geophysical methods, in particular gravity prospecting, is significantly increasing. For example, erosive incisions on the surface of the Cambrian, predicted by Kh. B. Zayats, are probably filled with terrigenous deposits of the Ordovician. Zones of lower density of rocks and incisions are associated with the buried tectonic zone and with lowering of the crystalline basement behind longitudinal faults. These oil and gas prospective zones are displayed in the gravity field by bands of negative anomalies. Therefore, there is a reason to predict the existence of the promising areas based on the interpretation of gravimetric data. The paper presents an analysis of the morphology of local anomalies of the gravity and magnetic fields and density distribution patterns scheme along the surfaces of the Precambrian, Paleozoic, and Mesozoic according to the solution of the three-dimensional gravity inversion.