深度域地震资料解释探讨

Seismic Data Interpretation after PSDM in Depth Domain

郝晓红 晏玉环

HAO Xiaohong YAN Yuhuan

中国石油化工股份有限公司上海海洋油气分公司研究院, 上海 200120

Institute of SINOPEC Shanghai Off shore Oil & Gas Company, Shanghai 200120, China

叠前深度偏移在速度复杂或构造复杂地区的成像具有优势,目前已经成为地震数据处理领域的标准流程.对叠前偏移处理数据进行后续的解释主要有两种思路:时深转换到时间域进行解释、直接在深度域进行解释.在深度域进行解释有很多优点,但也存在一些难点:褶积模型的适用性、井震标定的适用性以及深度校正问题.在前人研究和工作实践的基础上,提出了一种在深度域进行解释的方法,尽量适应目前解释系统、工作习惯、工作思路的方法.

The prestack depth migration(PSDM) could have good image in complex area of velocity or geological structure,and has become standard process in seismic data processing.The seismic interpretation to the cube after PSDM could be carried out in depth domain or time domain by depth-time transformation.There are many advantages to interpret seismic cube in depth domain,although some difficulties exist,such as the applicability of convolution model,how to conduct seismic-well ties,and depth correction for map and cube,and so on.On the basis of previous study and work practice,and approach has been approved which is adapt to the current interpretation system,existing workflow,and work ideas.

https://doi.org/10.3969/j.issn.1008-2336.2014.02.020