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山地地区由于地形较为恶劣、构造较为复杂, 使地震勘探的施工和资料处理难度加大, 因而影响了地震资料的品质, 使地震资料的多解性增强, 勘探风险较大。愈来愈多的油公司认识到建立合理的地质构造模型是提高山地地区勘探成功率的重要方法。笔者以库车前陆盆地为例, 对地表地质现象、地震资料和钻井资料进行了综合分析, 提出了依—吐构造带主要含油气构造的地质构造模型。初步认为依奇克里克背斜、吐格尔明背斜和吐孜鲁克背斜均为断层传播褶皱,但三者又有一些区别, 前二者具明显的冲起构造特征。吐孜鲁克鼻状构造系由吐①、F4 断层联合作用形成。最后笔者对地表填图、地震勘探和钻井做了简要评述, 强调了综合研究(包括建立地质构造模型) 在山地地区油气勘探过程中的重要性。
Due to the terrible terrain and complex structure in mountainous area, the construction and data processing of seismic exploration are more difficult, which affects the quality of seismic data, enhances the multi-solution of seismic data and risks exploration. More and more oil companies recognize that building a reasonable geological structure model is an important way to improve the success rate of exploration in mountainous areas. Taking Kuqa foreland basin as an example, the authors made a comprehensive analysis of the surface geological phenomena, seismic data and drilling data, and proposed the geological structural model of the main oil-gas structure in the Yitou tectonic belt. According to the preliminary evidence, the ecciket anticlines, the Dugolming anticlines and the Tuzluk anticlines are all fault-propagating folds, but there are some differences between the two. The former two have obvious uplift tectonics. Tuzi Luke nasal tectonic system by the Tu ①, F4 fault formation. Finally, the author briefly reviews surface mapping, seismic exploration and drilling, emphasizing the importance of comprehensive research (including the establishment of geological models) in oil and gas exploration in mountainous areas.