摘要
鄂尔多斯盆地东缘石楼北区块的二叠系山西组S_(2)^(3)亚段是致密气勘探的重点层系,区块内钻井较少,钻探程度低。S_(2)^(3)亚段储层薄且致密,非均质性强,岩性横向变化快,常规地震反演方法储层预测效果差,严重制约了致密气的勘探。为此,综合利用钻、测井资料和三维地震数据,开展古地貌、地震属性、测井相分析,刻画了石楼北区块S_(2)^(3)亚段各沉积微相的展布;在此基础上开展了基于相控的地质统计学反演预测砂体展布,预测结果与钻井一致性高。研究成果为石楼北地区资源量的预测和下一步钻井部署提供了依据。
S_(2)^(3) sub-member of Shiluobei block in the east margin of the Ordos Basin is the key stratum for tight gas exploration.There are few wells drilled in the block,and the degree of exploration is low.In addition,the reservoir in the S_(2)^(3) sub-member is thin and tight,with strong heterogeneity and fast lateral lithological change.Therefore,it is difficult for conventional methods to carry out prediction based on seismic data,which seriously restricts the exploration of tight gas.This paper comprehensively uses drilling and logging data and 3D seismic data to analyze paleogeomorphology,seismic attributes,and logging facies,and depicts the distribution of each sedimentary microfacies in the Shiloubei block.Furthermore,on this basis,the paper carries out facies-controlled geostatistical inversion to predict sand body distribution.The predicted sand body distribution is highly consis-tent with the sedimentary facies revealed by drilling.The research results provide a basis for the prediction of resources in the Shiloubei block and the subsequent drilling deployment.
作者
刁宛
童姜楠
张宝权
田悦
徐攀
DIAO Wan;TONG Jiangnan;ZHANG Baoquan;TIAN Yue;XU Pan(Geophysical Research Institute,BGP,CNPC,Zhuozhou,Hebei 072751,China;National Engineering Research of Coalbed Methane Development&Utilization,Beijing 110000,China;PetroChina Coalbed Methane Company Limited,Beijing 110000,China)
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2022年第S01期172-176,15,共6页
Oil Geophysical Prospecting
关键词
井震联合
致密气
薄砂岩储层
相控反演
combined well and seismic data
tight gas
thin sand reservoir
facies-controlled inversion
作者简介
刁宛,工程师,1988年生,2011年获长江大学地质学专业学士学位,2014年获中国石油大学(北京)矿产普查与勘探专业硕士学位,现就职于中国石油集团东方地球物理公司研究院地质研究中心,主要从事油气勘探、开发、地震反演解释方面的研究。河北省涿州市华阳东路科技园区东方地球物理公司研究院,072751。Email:diaowan01@cnpc.com.cn
