论文部分内容阅读
南方双复杂山区由于地表地质条件复杂,导致野外施工困难,资料信噪比低,地下复杂构造及目的层成像不好,极大的影响了地震剖面品质。为破解这个难题,重点在总结分析前人的研究基础上,提出了从地表和地下两个方面联合解决南方双复杂山区地震采集问题,即针对南方地表地形特征,形成以激发为中心的宽线与弯线相结合的采集方法;针对地下目的层能量阴影区域,形成局部加密炮技术。该技术方法在桂中、黔南、重庆龙驹坝地区的地震勘探中应用,取得了良好的采集效果,值得借鉴和在其它类似地区进一步推广使用。
Due to the complex surface geological conditions in the southern dual complex mountainous area, difficulties in field construction, low signal-to-noise ratio of data, poorly-constructed complex structures and target layers in the south have greatly affected the seismic profile quality. In order to solve this problem, this paper focuses on the analysis of previous studies, and proposes to jointly solve the seismic acquisition problems in the southern dual complex mountainous area from the surface and subsurface. That is, according to the characteristics of the southern surface topography, a wide excitation line And the combination of curved line acquisition method; for underground target energy shadow area, the formation of local artillery technology. The method has been applied in seismic exploration in Guangxi, Qiannan and Chongqing Longju dam areas and has achieved good acquisition results, which is worth learning from and being further popularized in other similar areas.