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随着浅部找矿难度的增加,金属矿的勘探将进一步向深部进军.受勘探深度与精度的限制,常规地球物理勘探技术难以准确刻划深部金属矿控矿结构.作为深部探测的核心技术,反射地震技术具有探测深度大、分辨率高等特点,正逐步成为解开深部构造矿床勘探难题不可或缺的重要手段.本文回顾了近年来反射地震技术在深部金属矿勘探中的取得的重要进展,包括了岩石物性基础、三维地震技术、井中地震技术以及正演模拟等方面.这些事例表明,反射地震技术在金属矿勘探中具有很高可行性与广阔的应用前景.然而,相比于油气行业,现阶段金属矿反射地震勘探无论在岩石物性测量还是数据采集、处理与解释等方面都存在着明显的不足,还需要不断地认识和改进.最后本文就金属矿反射地震勘探应用中存在的这些问题提出了该技术进一步发展的主要方向,旨在为我国典型成矿带深部金属矿勘探工作提供一些借鉴.
With the increase of shallow prospecting difficulty, the prospecting of metal ore will further march into the deep.Due to the limitation of exploration depth and accuracy, conventional geophysical exploration technology can not accurately characterize the deep metal ore control structure.As the core technology of deep exploration , The reflected seismic technique has the characteristics of large exploration depth and high resolution and is becoming an indispensable means of solving the exploration problems of deep structural deposits gradually.This paper reviews the important progress made in recent years by reflection seismic technology in deep metal exploration , Including petrophysics foundation, 3D seismic technology, well seismic technology and forward modeling, etc. These examples show that reflected seismic technology has high feasibility and broad application prospects in metal exploration.However, compared with oil and gas Industry, at this stage, the metal ore reflection seismic exploration has obvious deficiencies in terms of petrophysical property measurement, data acquisition, processing and interpretation, etc. It also needs to be constantly recognized and improved.Finally, this paper discusses the application of metal ore reflection seismic exploration These questions put forward the main direction for the further development of this technology and aim at our country code Type metallogenic belt deep metal ore exploration work to provide some reference.