SB洼陷侏罗系喀拉扎组砂砾岩储层预测研究  

Sand-conglomerate Reservoir Prediction in Kalaza Formation of Jurassic Systems

作　　者：王朋 郭晨光 贾剑波 敬小军 罗仁泽[2] 李兴宇 Wang Peng;Guo Chenguang;Jia Jianbo;Jing Xiaojun;Luo Renze;Li Xingyu(the Fourth Oil Production Plant of PetroChina Changqing Oilfield Company,Yinchuan Ningxia 718500;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500)

机构地区：[1]中国石油长庆油田分公司第四采油厂,宁夏银川750005 [2]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500

出　　处：《石化技术》2021年第5期165-166,156,共3页Petrochemical Industry Technology

摘　　要：经过近几年的勘探研究,TH盆地中下侏罗统已被证实具有大面积含油气的潜力,但随着勘探开发难度较大,有利砂体展布成为制约ST洼陷勘探开发的关键。由于砂砾岩储层与周围泥岩盖层波阻抗差别小,常规波阻抗反演很难预测储层分布,故本区采用高精度叠后拟声波阻抗反演与频谱成像预测喀拉扎组储层砂体展布,结果显示主要砂砾岩储层分布在研究区的东北部,具有较明显的冲积扇发育特征;并运用低频能量属性研究储层含流体性,结果显示储层可分为含油气、含水和干层三种,油气分布范围与砂砾岩平面展布较一致;最终通过信息融合技术圈定了有效储层分布区域,为井位建议提供了有力依据。After recent years of exploration and research,the middle Jurassic of TH basin have been confirmed with large area of oil and gas potential.The characteristics of the overall exploration and development is difficult,so the favorable sand body distribution is the key to restricting the northern sub-sag,exploration and development.Because of glutenite reservoir and surrounding mudstone cap rock wave impedance difference is small,the conventional wave impedance inversion is difficult to predict reservoir distribution,so this area with high precision after stack to acoustic impedance inversion and spectral imaging predict kara group of reservoir sand body distribution,the results show that the main glutenite reservoir distributed in northeast,in the study area has the obvious alluvial fan development characteristic;The results show that the reservoir can be divided into three types:oil-bearing reservoir,waterbearing reservoir and dry reservoir.Finally,the effective reservoir distribution area is delineated by information fusion technology,which provides a strong basis for well location suggestion.

关 键 词：拟声波反演 频谱成像 流体检测 属性融合 

分 类 号：P618.13[天文地球—矿床学]