气枪震源在地球深部结构探测中的应用研究进展

Progress in earth's deep structures exploration by air gun source

介绍了气枪震源的发展历史、工作原理、激发参数、性能指标,及气枪震源的最新发展动态.由于气枪震源的优越性,使得气枪震源成为新兴的、环保的、绿色的人工震源,在地球物理学中得到迅速推广和广泛应用,如国外的LARSE和SIGHT计划,及国内的南海东北部海陆联合勘探计划,都是利用气枪震源进行深部地球物理探测的成功实例.通过对气枪震源的容积能量、激发频率、沉放深度等的分析和讨论,探讨气枪震源在地球深部结构探测中的进一步应用.

This paper reviews the history of air gun source, analyzes the work principles, fire parameters, capability indexes, and introduces the latest development of air gun. Because of advantages, air gun has become one of new active earthquake sources that is rising, environmental, green, so it is widely applied in geophysics. There are some successful cases, such as LARSE and SIGHT project, and the onshore-offshore seismic prospect in NE South China Sea, all of these plans made use of air gun. The discussion about the chamber volumes, frequency, optimum depth, aimed on the application of air gun in geophysics.