石油地球物理勘探2023，Vol.58Issue(6)：1481-1488,8.DOI:10.13810/j.cnki.issn.1000-7210.2023.06.019
针对目标的非地震解释技术在鄂尔多斯盆地西缘的应用
Non-seismic target-oriented interpretation techniques and application in the western edge of Ordos Basin
李明瑞 1王学刚 1于波 1姚志纯 1张亚东 1黄祥虎1
作者信息
- 1. 中国石油长庆油田公司勘探事业部,陕西西安 710021
- 折叠
摘要
Abstract
The geology on the western edge of the Ordos Basin is complex,and the interpretation of complex un-derground structures and the prediction results of deep stratigraphic distribution based on existing seismic data are inconsistent with the actual drilling results.To this end,the technical idea of non-seismic interpretation is proposed.In other words,based on conventional non-seismic processing,the specific processing and interpretation focusing on geologic requirements will be reinforced.In view of the strike-slip fault development feature,the enhancement of gravity and magnetic anomaly and body display techniques are used to highlight weak anomalies,and then lighting analysis is carried out in different orientations to extract non-seismic anomalies that can reflect the strike-slip fault.The results can be used to explain the horizontal distribution of the strike-slip fault.In the case of the'continuous axis but breaking layer'phenomenon on the seismic reflection layer,or in other words,the same reflective layer re-flects different strata,the time-frequency electromagnetic interpretive processing technology is used to identify the strata attributes after the precise inversion of the target layer,and the result of comprehensive analysis of various in-formation makes the stratigraphic attribution more accurate.For the deep strata where seismic reflective imaging is difficult to realize,gravity-seismic combined stripping can be applied to Lower Paleozoic strata,and the results can be used to predict the deep source rocks of the Changchengian system.关键词
走滑断裂/深部地层/山前复杂区/鄂尔多斯盆地西缘/重力/磁力/时频电磁Key words
strike-slip fault/deep strata/piedmont complex area/western edge of Ordos Basin/gravity/magnetism/time-frequency electromagnetism分类
天文与地球科学引用本文复制引用
李明瑞,王学刚,于波,姚志纯,张亚东,黄祥虎..针对目标的非地震解释技术在鄂尔多斯盆地西缘的应用[J].石油地球物理勘探,2023,58(6):1481-1488,8.
