基于地震波速度预测岩体物性参数模型与应用  

Rock Mass Physical Property Parameter Prediction Model Based on Seismic Wave Velocity and Its Application

作　　者：王大兴[1] 赵兴华[1] 孟凡彬[2] 郎玉泉[2] Wang Daxing;Zhao Xinghua;Meng Fanbin;Lang Yuquan(Research Institute of Exploration and Development,PetroChina Changqing Oil Field Company,Xi’an,Shanxi 710018;Geophysical Prospecting Research Institute,CNACG,Zhuozhou,Hebei 072750)

机构地区：[1]长庆油田分公司勘探开发研究院,西安710018 [2]中国煤炭地质总局地球物理勘探研究院,河北涿州072750

出　　处：《中国煤炭地质》2019年第4期71-74,79,共5页Coal Geology of China

基　　金：国家"十三五"科技重大专项经费资助项目(2016ZX05041-002);(2016ZX05043001);淮北矿业(集团)有限责任公司科研及技术创新计划项目(井巷约束下实时动态矿井三维数据体高精度叠前深度偏移成像技术与精细解释技术的应用研究);淮南矿业集团直管科研项目(井巷约束下三维地震高精度成像技术研究)

摘　　要：以地震属性和钻孔测井参数为基础,依据试验数据构建数学模型,实现对煤层顶底板岩石物性参数的定量预测。通过试验拟合出纵横波波速之间关系、波速与密度的关系、动静杨氏模量、动静泊松比之间的关系,且相关程度较高。依据试验模拟结果对淮南刘庄区煤层顶底板岩石物性参数及孔隙度进行了预测。结果表明该地区的物性参数分布规律明显,且与实测结果吻合较好。模型计算与实例应用证实地震信息用于预测岩石力学参数具有可行性。Based on seismic attribute and drilling well logging parameters,a mathematic model has been built in accordance with tested data,realized quantitative prediction of coal roof and floor rock physical parameters.The relationships between velocities of longitudinal wave and transversal wave;wave velocity and density;dynamic,static Young’s modulus and dynamic,static Poisson’s ratio have been fitted out through tests with rather high correlativity.According to test simulation results carried out prediction of coal roof and floor rock physical parameters and porosities in the Liuzhuang area,Huainan coalfield.The result has shown that the distribution pattern of physical parameters in the area has obvious regularity and tally well with measured result.The model computation and case application have verified that the use of seismic information on rock mechanic parameter prediction is feasible.

关 键 词：岩石物性参数 纵横波速度 泊松比 孔隙度 地震属性 测井参数 

分 类 号：P613.4[天文地球—矿床学]