作者: Mohanad Al-Farhan , Behrooz Oskooi , Vahid E. Ardestani , Maysam Abedi , Amar Al-Khalidy
DOI: 10.1016/J.PETROL.2019.106397
关键词: Sedimentary rock 、 Regular grid 、 Tectonics 、 Oil field 、 Singular value decomposition 、 Petrology 、 Geology 、 Weighting 、 Density contrast 、 Gravity anomaly
摘要: Abstract Potential field methods are capable to provide satisfactory results on the tectonics and geology, especially when dealing with hydrocarbon reservoirs ore-bearing mineralization. In this study, magnetic gravity survey were conducted at west of Kifl area in central Iraq image subsurface geological structure consequently characteristics oil gas reservoirs. Ground measurements an 16 by 24 km a regular grid spacing 250 m. The clarified tectonic setting study area, where fault system was recognized resembling both anomalies distinct trends along NS NW. A 3D inversion algorithm based weighted minimum length solution used for reconstruction physical properties susceptibility density contrast. Weighting matrix is composed multiplication compactness depth weighting functions, truncated singular value decomposition (TSVD) regularization. first applied synthetic model simulate reality while obtained. Implementing real potential data, reservoir determined. Four cross sections have been extracted from result show geometric (depth shape) main Kefl field. indicated presence middle within column sedimentary sequences represented as graben-horst structure. This phenomenon could be attributed deformation tension over Eurasian Arabian plates collided back Permian - Paleocene periods.