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煤田三维地震叠前深度偏移技术及其应用

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三维地震叠前深度偏移可实现反射点的正确空间归位和真正的共反射点叠加,减小菲涅尔带的影响范围,大大提高地震资料的分辨率。论述了三维地震叠前深度偏移的成像原理和关键技术,并应用于实际地震资料的处理中。结果显示,小断点显示较叠前时间偏移剖面更为清晰,提高了煤田三维地震探测细微构造的能力,取得了较好的地质效果。
The technology of coal 3D prestack depth migration and its applications
In this paper, we discuss the imaging principle and key technology of pre-stack depth-migration in 3D seismic exploration. The 3D pre-stack depth-migration technology may realize the correct spatial homing of the reflection point and the stacking of the real common-reflection-point, which decreases the extent of the Fresnel zone and greatly improves the resolution of seismic data. In the actual seismic data processing and applications, the breaking points of small faults of this technology are more clearly displayed than that of the pre-stack time-migration technology. So the technology of pre-stack depth-migration can improve the ability of 3D seismic exploration in detecting mini-structures and has achieved a good geological effect.

coal field3D seismicspre-stack depth migrationapplication

高远、王琦、董守华、于鹏飞

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安徽省煤田地质局物探测量队,安徽宿州234000

淮北矿业(集团)有限责任公司,安徽淮北235006

中国矿业大学,江苏徐州221008

煤田 三维地震 叠前深度偏移 应用

2011

煤田地质与勘探
中煤科工集团西安研究院

煤田地质与勘探

CSTPCDCSCD北大核心
影响因子:1.079
ISSN:1001-1986
年,卷(期):2011.39(3)
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