深地震探测技术在四川盆地的应用  

Application of Deep Seismic Exploration to Sichuan Basin

作　　者：刘伟[1] 李明翼 唐庚 朱开华 王逵 廖建军 刘军 

机构地区：[1]中国石油集团东方地球物理公司西南物探分公司,四川成都610213 [2]中国石油西南油气田公司勘探事业部,四川成都610125 [3]中国石油西南油气田公司工程技术研究院,四川成都610106

出　　处：《天然气技术与经济》2018年第5期20-23,共4页Natural Gas Technology and Economy

摘　　要：深地震探测技术是国际地学界公认的探测地球深部岩石圈精细结构、解决深部地质问题的最有效手段,目前国内外已广泛将其应用于研究板块内造山带的构造格局、岩石圈的精细结构以及刻画莫霍面的位置和走向。由于探测深度深,深地震探测技术要求偏移距大、药量大、记录长度长,因此与常规石油地震勘探存在较大差异。四川盆地开展的深地震探测技术,在观测系统设计、激发药量优化等方面探索和总结了适合深地震探测实验的采集技术方案和施工方法。A technology of deep seismic exploration is widely regarded by international geologists as the most skillful tool not only to survey fine structures in deeper lithosphere but also to solve geological problems appearing in deeper strata. At present, it has been widely used to study both tectonic framework of orogenic belts and fine structures of lithosphere, and to depict the Moho location and strike. Being capable of surveying deeper depth, this technology is quite different from other routine seismic technologies. The deep seismic exploration is better at large offset distance, big shooting charge, and long recording length. Its application to Sichuan Basin emphasizes on recording-geometry design and shooting-charge optimization. Moreover, some acquisition schemes and job practices suitable for deep seismic exploration are summarized.

关 键 词：深地震探测 莫霍面 岩石圈 波阻抗 激发药量 观测系统 偏移距 记录长度 

分 类 号：P631.4[天文地球—地质矿产勘探]