摘要
通过多种物探技术参数测试和对比研究,对渤海海域西部走滑断裂带进行刻画;应用海底电缆宽方位采集技术、属性分析和滤波相干技术,提高了断裂分析精度和微小断裂识别能力;利用叠后目标处理技术增强了地震同相轴连续性,提高了断裂和潜山顶面的成像精度。多种物探方法的应用识别刻画出了渤海西部海域复杂走滑断裂带的构造演化特征,并首次完成新近系右旋走滑位移量分析。
The research on strike-slip fault zone has always been the hotspot for tectonic analysis of Bohai Sea,however,theresearch on Neogene strike-slip fracture characterization is relatively few.Through various geophysical technology parameters testing and comparison research,the description on the strike-slip fault zone characterization has been carried out and it received good application effects.By using submarine cable wide azimuth acquisition technology,attribute analysis and filter coherent technology,the fracture analysis accuracy and tiny fracture identification ability have been improved.With the post-stack target processing technology,the seismic event continuity has been enhanced and the imaging precision of fault and buried hill top surface has been improved.Through application of various geophysical exploration methods,the complex strike-slip fault zone tectonic evolution characteristics have been identified and the Neogene dextral strike-slip displacement analysis has been completed for the first time.
引文
[1]余一欣,周心怀,徐长贵,等.渤海海域新生代断裂发育特征及形成机制[J].石油与天然气地质,2011,32(2):273-279.
[2]余一欣,周心怀,徐长贵,等.渤海辽东湾坳陷走滑断裂差异变形特征[J].石油与天然气地质,2014,35(5):632-638.
[3]王西文,苏明军,刘军迎,等.基于小波变换的地震相干的算法及应用[J].石油物探,2002,41(3):334-338.
[4]Randen T,Monsen E,Signer C,et a1.Three-dimensional texture attributes for seismic data analysis[J].Expanded Abstracts of the 70 Annual Internet SEG Meeting,2000:668-671.
[5]尹成,伍志明,邓怀群.高阶统计量方法在地震勘探中的应用[J].地球物理学进展,2003,18(3):546-550.
[6]胡光义,王加瑞,武士尧.利用地震分频处理技术预测河流相储层[J].中国海上油气,2005,17(4):237-240.
[7]郭西娜.超浅层地震勘探数据处理系统中的混波技术[J].物探化探计算技术,1998,20(4):316-319.