基于多种解释性处理的低序级断层刻画技术

Low Order Fault Characterization Technique Based on Multiple Inter⁃pretive Processing

在复杂断块油藏的勘探、开发工作中,准确刻画低序级断层有着重要的意义。由于低序级断层存在断距小、通常以多条共生形式出现等特点,导致其在地震剖面中识别、刻画的难度较大。本研究提出的多种地震资料解释性处理技术相结合,包括井控提频、小波分频、断层强化处理技术等,逐步提高低序级断层在地震剖面中的识别度,并利用多种极性相干蚂蚁体技术对低序级断层进行客观追踪,最终实现5~8 m断层的精准刻画。

Accurate characterization of low-order faults is of great significance for the exploration and de⁃velopment of complex fault-block reservoirs.It is difficult to identify and characterize low-order faults in seismic profiles because of their small fault distance and multiple symbiotic forms.In the present study,a variety of interpreted seismic data processing technology,including the well control,the wavelet fre⁃quency,fault strengthening treatment technology and so on,gradually increase the low-order level fault recognition in the seismic section,and use of polarity coherency ants objective tracking technology for low grade sequence fault,achieve 5~8 meters accurate characterization of the fault.