The problem of localization of fractured zones is one of the most important for the development of fractured reservoirs. Its relevance is determined by the fact that in most cases these zones are located unevenly in area, and at the same time it is hard to identify them by direct methods. The paper proposes a method for localizing zones with a high content of fractures associated with tectonic mechanisms of how it is forming. It is based on the assumption that the strain field determines the zones of fracture propagation using a design characteristic called the fracture intensity, which is expressed through the invariants of volumetric strain and the intensity of shear strain. The method allows to build a map of fracture intensity, as well as to determine the preferred direction of fractures. The method has been successfully tested at one of the oilfields in Russia. Two approaches to assessing the strain field are considered. Taking into account the applied relationships, they are called "geomechanical" and "tectonophysical". So, for the tectonophysical approach, structural data are required (the position of horizons, faults, which can be distinguished from seismic data, as well as, if available, information on the kinematics of these faults). The geomechanical approach additionally requires formation mechanical properties (Young's modulus and Poisson's ratio), Biot's ratio, rock density, and pore pressure.
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