测井约束地震反演预测采区地层压力研究  

Study on Logging Seismic Constraint Inversion to Predict Strata Pressure in Mining Block

作　　者：张凯[1] 邹冠贵[2] 朱莎 

机构地区：[1]神华集团有限责任公司,北京100011 [2]中国矿业大学(北京),北京100083 [3]中国水利电力对外公司,北京100120

出　　处：《煤炭工程》2013年第12期81-83,87,共4页Coal Engineering

基　　金：国家科技支撑计划项目(2012BAC10B03;2013BAB10B00)

摘　　要：根据地层超压的预测理论和Fillippone压力预测公式,结合实际数据,统计分析层速度与地层压力的关系,并对Fillippone公式进行改进,利用测井约束反演方法获取层速度,预测勘探区内的地层压力异常。结果表明,采用测井约束地震反演方法,综合了测井资料和地震资料得到目的层的层速度,预测得到的地层压力在总体上体现出了与深度的密切关系,同时也体现了构造作用等地质因素引起的局部变化,与传统方法根据压力梯度计算结果相比,该方法更接近真实的地质情况,预测结果与实际数据相比误差在5%以内。According to the prediction theory of the formation overpressure and the Fillippone pressure prediction formula, in combination with the actual data, a statistic analysis was conducted on the relationship between the interval velocity and strata pressure and an improvement was conducted on the Fillippone formula. The logging seismic constraint inversion method was applied to obtain the interval velocity and to predict the strata pressure abnormal in the exploration zone. The resuhs showed that in combination with the logging information and the seismic information, the logging seismic constraint inversion method was applied to obtain the interval velocity of the target strata, to predict the obtained strata pressure generally with the close relationship with the depth and also to show the local variation caused by the structural function and other geological factors. In comparison with the traditional method results based on the pressure gradient calculation, the method would be more close to the real geological conditions and the comparison error between the predicted results and the actual data was within 5 %.

关 键 词：地层压力 层速度 Fillippone公式 测井约束地震反演 水害防治 

分 类 号：TD311[矿业工程—矿井建设]