Inversion of horizontal <i>in situ</i> stress field based on wide-azimuth seismic data

Abstract In situ stress is a significant rock mechanics parameter, which widely used in many aspects of the petroleum industry. Horizontal an important part stress. Hence, how to obtain accurate information as horizontal can vary with azimuth has been explored. A new prediction method for on plane proposed here. This analyses relationship between seismic data, fracture orientation and field. Through series actual it found that data elastic modulus effectively point out direction Meanwhile, magnitude shown be closely related combination amplitude according further analysis log wide-azimuth data. Under this premise, objective function field inversion using established. Finally, based realized. simultaneously invert maximum stress, minimum their orientations, optimizes process establish fields. The application also verifies accuracy method.