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宁东煤田地震勘探的开展始于2003年,截至2008年底,共完成各种勘查阶段的地震勘探报告29件,累计完成二维地震勘探物理点约144270万个,三维地震勘探控制面积159.33km2。历经6年多的努力,已初步形成了颇具宁东(沙漠、半沙漠和戈壁复杂地震地质条件)特色的六项地震勘探优势技术,即:①沙漠区、戈壁区地震资料采集技术;②复杂地表高精度静校正技术;③共反射面元优化叠加技术;④叠前偏移技术;⑤小断层地震识别技术;⑥陡倾逆掩构造高精度地震成像技术。从而使地震勘探技术在这一地区的煤田构造勘探中的应用取得了突破性进展。实践表明,其三维地震精细地质构造勘探与二维地震快速控制地质构造勘探,可有效提高勘查精度、降低勘查费用、缩短勘查周期。
Seismic exploration in Ningdong Coalfield began in 2003. By the end of 2008, a total of 29 seismic exploration reports were completed at various exploration stages, accumulating a total of 1,442.7 million physical points in 2D seismic exploration and 159.33 km2 in 3D seismic exploration. Six years of hard work have preliminarily formed six seismic exploration technologies that are quite characteristic of Ningdong (the geological conditions of the desert, semi-desert and Gobi complex): ① seismic data collection technology in the desert area and the Gobi area; ② complicated Surface precision static correction technology; ③ total reflection surface element optimization overlay technology; ④ prestack migration technology; ⑤ small fault seismic identification technology; ⑥ steep tilt inverse mask to create high-precision seismic imaging technology. So that the seismic exploration technology in this area of coal field structure exploration made a breakthrough. Practice shows that its 3D seismic fine tectonic exploration and 2D seismic rapid control of geological tectonics exploration can effectively improve exploration accuracy, reduce exploration costs and shorten the exploration cycle.