海拉尔盆地乌东地区三维地震裂缝预测方法及应用  

Method for Predicting Seismic Fractures and Its Application in Wudong Area,Hailaer Basin

作　　者：刘云武[1] 齐振勤 唐振国[3,4] 陈守田 张秀娟 

机构地区：[1]北京大学地球与空间科学学院,北京100871 [2]中国石油大庆油田钻探工程公司物探一公司,黑龙江省大庆市163357 [3]中国石油大庆油田公司勘探开发研究院,黑龙江省大庆市163000 [4]成都理工大学,四川省成都市610000 [5]中国石油渤海钻探工程公司第一录井公司,天津300280 [6]中国石油大庆油田钻探工程公司地质录井一公司信息中心,黑龙江省大庆市163000

出　　处：《中国石油勘探》2012年第1期37-41,6,共5页China Petroleum Exploration

基　　金：国家973项目"火山岩油气藏的形成机制与分布规律"(2009CB2193)

摘　　要：目前由于油气勘探技术的提高,国内物性较好的沉积岩储层油气资源逐步被发现和开发,而火成岩和基岩变质岩中裂缝储层在华北、辽河油田、大庆等油田相继发现巨大的油气资源,也使裂缝储层成为油气勘探的新领域。以海拉尔盆地乌东地区为例,基于三维地震资料,在建立层序格架和精细断层解释基础上,进行构造应力场模拟,通过构造曲率、最大主应变、最大主应力等参数对构造裂缝分布进行预测,结果表明构造应力场分布与构造断裂体系之间具有较好的相关关系,裂缝发育带分布在不同方向的两组断层相交部位、正断层或逆断层的上盘附近。裂缝预测的影响因素主要是断层的位置和方向的精度,地层横向厚度和密度变化较大也对预测精度产生影响。At present,oil and gas resources of sedimentary rock reservoir of better physical performance were gradually discovered and developed in China,owing to the technical improvement in oil and gas exploration.Huge oil and gas resources of fractured reservoir of igneous rock and basement metamorphic rock were successively discovered in Huabei,Liaohe,and Daqing Oilfields,etc.,so fractured reservoir became new domains of exploration for oil and gas.Taking Wudong Area of Hailaer Basin as an example,and on the basis of 3D seismic data,stress stimulation was conducted,based on the establishment of sequence stratigraphic framework and detailed interpretation of faults.Distribution of structural fractures was predicted with such parameters as structural curvature,major principal strain,and major principal stress,etc.Results showed that there was better correlation between structural stress distribution and structural faults,and fractures developed at the intersection of two groups of faults of different direction,and near the upper side of normal fault and thrust.Factors affecting fracture prediction mainly included the accuracy of fault's position and direction.Greater change of horizontal thickness and density of strata also exerted influence on the accuracy of prediction.

关 键 词：曲率张量 变形张量 应力场张量 构造应力场模拟 裂缝储层预测 海拉尔盆地 

分 类 号：P631.44[天文地球—地质矿产勘探]