可控震源在准南地区煤田三维地震采集中的应用  

Application of Vibroseis in 3-D Seismic Acquisition of Coalfield in Southern Junggar Basin

作　　者：赫云兰[1] 徐东晶[1] 梁明星[1] 吴志远[1] 

机构地区：[1]中国矿业大学(北京)煤炭资源与安全开采国家重点实验室,北京100083

出　　处：《煤炭技术》2017年第7期121-123,共3页Coal Technology

基　　金：国家自然科学基金青年基金(41602168;41402143);中国博士后基金(2016M591286);中国地质调查局油气中心研究课题(12120115102101)

摘　　要：可控震源在国内外地震勘探领域得到了广泛的应用。新疆准南煤田三维地震数据采集尝试采用了可控震源的激发方式。通过对驱动幅度、扫描频率、扫描长度、震源台数、震动次数等参数进行试验优选,确定了符合勘探区地震条件的激发参数组合,地震数据采集获得了良好的效果。通过对比勘探区以往炸药激发,可控震源激发提高了地震数据的分辨率与信噪比。同时可控震源还具有安全、环保、高效、经济等优势。The vibroseis is widely applied in seismic exploration at home and abroad. The 3-D seismic data was acquisited with vibroseis exciting mode in the coalfield of the southern Junggar basin. Based on analyzing vibrotion rate, scanning bandwidth, scannning length, the numbers of vibroseis source,vibration period, parameters of vibroseis exciting mode was fixed in the study area. Good results were obtained in 3-D seismic data acquisition. The vibroseis enhances the resolution of seismic data and improve the signal-to-noise ratio compared to explosive exciting mode in study area. The vibroseis has the advantages of safety, environmental protection, high efficiency and economy.

关 键 词：可控震源 三维地震 采集 

分 类 号：P631.4[天文地球—地质矿产勘探]