海洋低频气枪震源现状及发展方向

Current status and development direction of marine low-frequency air-gun seismic sources

气枪震源是目前海洋地震勘探最主要的震源,随着海洋勘探目的层越来越深、全波形反演技术的成熟,推动了低频气枪震源的发展。近几年来,业界在海洋低频气枪震源方面进行了多种探索,部分公司在低频气枪震源方面取得了一些进展,个别海洋低频气枪震源还达到了商业应用水平。本文结合研发现状和市场需求,介绍了目前业界发展的几种低频气枪震源,重点分析了应用频率锁定原理的低频气枪震源Harmony的测试结果与商用探索。

Air-gun source is the most important source in marine seismic exploration at present.With the deepening of target layer in marine exploration and the maturity of full-waveform inversion technology,the development of low-frequency air-gun source is promoted.In recent years,the industry has made a variety of explorations in the area of low-frequency marine air-gun source.Some companies have made some progress in the area of low-frequency marine air-gun source,and some of them have reached the level of commercial application.Based on the research and development status and market demand,this paper introduces several low-frequency air-gun source developed in the current industry,and focuses on analyzing the test results and commercial exploration of harmony,which is a low-frequency air-gun source based on frequency locking principle.