摘要
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。
The bad landform and complicated structure of mountainous area cause more difficulties to the seismic exploration and data process, which influences the quality of seismic data and results in their more interpretation and more exploration risks. More and more petroleum companies have understood the importance of setting up a rational geological structural model in raising the exploration efficiency in mountainous area. Taking the Kuche foreland basin as an example, we have comprehensively analysed the surface geology, seismic and drilling well data, set up a geological structural model of the main oil-gas structure in the Yi--Tu structural zone. And we preliminarily think that the Yiqikelike, Tugeerming and Tuziluke folds are all spread folds of fault ,with some differences one another. The former two are characterized evidently by the thrusting structure whereas the Tuziluke nose-like structure is formed by the combination of Tu①, F 4faults. In the end, we bridfly review the survface mapping, seismic exploration and drilling well and emphasize the importance of comprehensive study including setting up a geological structural model in the oil-gas exploration of mountainous area.
出处
《云南地质》
1999年第3期275-282,共8页
Yunnan Geology
