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相移偏移因其算法的精确性、稳健性及计算的高效性而成为地球科学领域中的重要方法。主要针对二维点脉冲相移偏移理论方法、相移因子进行研究,取得了输入为自激自收剖面的点脉冲偏移成像;通过对三角体的偏移实验,验证了相移偏移处理方法可以处理带有倾角的地层界面,无倾角限制,精度高。不同形式的相移因子对偏移精度的影响不同,对相移因子的形式作了修改,并根据不同形式的相移因子对自激自收剖面内的点脉冲进行了偏移实验,证明了论证的正确性。
Because of its accuracy, robustness and computational efficiency, phase shift migration has become an important method in the field of geosciences. Mainly for the two-dimensional point pulse phase shift theory, the phase shift factor is studied, and the point pulse offset imaging with the input is the self-excitation and self-absorption section is obtained. The phase shift offset Processing method can deal with the inclination of the formation interface, no inclination limit, high precision. Different forms of phase shift factors have different effects on the offset precision, and the form of the phase shift factor has been modified. According to different forms of phase shift factors, the point pulse in the self-excitation and self-sustained section has been offset experimentally. The correctness of the argument.