煤矿瓦斯灾害源的高分辨率地震探测基础研究

项目名称： 煤矿瓦斯灾害源的高分辨率地震探测基础研究

项目编号： No.U1261203

项目类型： 联合基金项目

立项/批准年度： 2013

项目学科： 矿业工程

项目作者： 彭苏萍

作者单位： 中国矿业大学（北京）

项目金额： 240万元

中文摘要： 本项目针对当前我国煤矿瓦斯灾害科学预测难题，希望通过理论研究、模型测量、正演模拟和瓦斯突出点地震资料的实际观测结果，分析和研究煤矿瓦斯富集地层的高分辨测井地球物理响应特征，分析煤系地层含裂隙介质中地震波-特别是横波的传播规律，为利用转换横波探测煤系地层裂隙提供理论基础；利用数学模拟和物理模拟，分析含瓦斯煤系地层各向异性对地震波的响应特征和机理。通过地震多方法数据融合，提高含瓦斯煤层裂隙密度和裂缝方位的解释精度。通过研究煤系地层的弹性特征，研究煤矿瓦斯富集区和非富集区的弹性特征差异及其影响因素，通过探讨煤层各种特征的反射特征，建立高渗透煤层与低渗透煤层的反射振幅差异识别方法、不同岩性组合下煤矿瓦斯富集带和煤层突出部位的AVO理论模型。通过瓦斯地质、地球物理的综合研究，建立起运用地震探测技术准确预测瓦斯突出灾害源的理论基础和方法，为实现煤矿瓦斯灾害预警提供有效的地质支撑。

中文关键词： 煤矿灾害源；高分辨率；地震探测；；

英文摘要： Aims at the difficult problems for scientifically predicting the current gas disasters in coal mines of our country, the project will adopt these methods, include theoretical study, model measurement, forward modeling and investigating the seismic data of the gas outburst wells, to analyze the geophysical response characteristics about the high resolution logging in the gas-enriching coal strata, to analyze the transmitting law within the fracture coal strata about seismic wave, especially sheer wave, which will provide a theoretical foundation for detection the fracture in coal strata by conversion shear wave methods. It will study the seismic anisotropy response characteristics and mechanism about the gas-containing coal strata utilizing mathematical simulation and physical simulation. Researching and adopting the multi-method seismic data fusion will improve the interpreting precision about the crack density and azimuth in the gas-containing coal strata. Through investigating the elastic characteristics of the coal-bearing strata, especially the differences of the elastic characteristics and influence factors about the gas-containing coal strata, and investigating several reflection characteristics of the coal strata, the project will establish the methods for distinguishing the reflection amplitude differenc

英文关键词： coal mines disaster source；high resolution；seismic detection；；