高分辨率电成像测井资料在河套盆地碎屑岩中的应用  

Application of High-Resolution Electrical Imaging Logging Data to Clastic Rocks in Hetao Basin

作　　者：肖承文 赵仪迪 仵燕 李晓峰 刘静 陆慧 XIAO Chengwen;ZHAO Yidi;WU Yan;LI Xiaofeng;LIU Jing;LU Hui(Logging Technology Research Institute,China National Logging Corporation,Beijing 102206,China;Well Logging Key Laboratory,China National Petroleum Corporation,Xi’an,Shaanxi 710077,China;College of Geosciences,China University of Petroleum(Beijing),Beijing 102249,China)

机构地区：[1]中国石油集团测井有限公司测井技术研究院,北京102206 [2]中国石油天然气集团有限公司测井重点实验室,陕西西安710077 [3]中国石油大学(北京)地球科学学院,北京102249

出　　处：《测井技术》2022年第6期721-728,共8页Well Logging Technology

摘　　要：为明确河套盆地兴华区块古近系有利储层沉积相带分布规律,基于岩心观察,结合常规测井、微电阻率成像测井与核磁共振测井资料,针对河套盆地兴华区块的临河组深层碎屑岩开展高分辨率沉积学研究。结果表明,辫状河三角洲前缘发育的水下分流河道、河口坝等是主要的骨架砂体类型。通过拾取微电阻率成像中的层理倾角,确定了古水流的主要方向为由南向北。在此基础上,结合核磁共振测井资料,得出了高、低电阻率油层的成因与水动力强弱有关。该研究成果可为后续井位部署及完井试油选层提供理论依据。In order to clarify the distribution of favorable Paleogene reservoir sedimentary facies zones in Xinghua block,Hetao basin.On the basis of the observation of cores,combined with conventional logging,micro resistivity imaging logging and nuclear magnetic resonance logging data,high-resolution sedimentology research is carried out on the deep clastic rocks of Linhe formation in Xinghua block,Hetao basin.The results show that the subaqueous distributary channels and estuary bars developed in the braided delta front are the main types of skeleton sand bodies.By picking up the bedding dip angle in the microresistivity imaging,the main direction of the paleo-current is determined from south to north.On this basis,combined with nuclear magnetic resonance logging data,it is concluded that the formation of high and low resistivity reservoirs is related to strong and weak hydrodynamic forces.The research results can provide theoretical basis for subsequent well placement,well completion test and formation selection.

关 键 词：成像测井 沉积微相 古水流方向 河套盆地 临河组 

分 类 号：P631.84[天文地球—地质矿产勘探]