摘要
建立在确定性反演基础之上的地质统计学反演能提高薄储层地震识别能力,为提高研究区复杂混积薄互层识别分辨能力、提高储层预测精度,开展以确定性反演为基础的地质统计学反演研究。首先在井震结合、精细落实微构造的基础上,采用稀疏脉冲反演对储层总体展布特征进行定性描述,在此基础上进行旨在提高地震分辨能力的地质统计学反演,获取高分辨率砂岩概率体,进行基于井数据综合分析实现薄互层精细描述。研究成果显示地质统计学反演能对研究区复杂混积薄储层进行更为精细的刻画,储层预测成果更符合地质规律,砂岩概率与井点处砂岩更匹配,薄储层识别精度高,砂层预测符合率达73%,本文研究对同类储层的预测具有一定的借鉴意义。
Geostatistical inversion based on deterministic inversion can improve the seismic recognition ability of thin reservoirs.In order to improve the recognition and resolution ability of complex mixed thin interbeds in the study area and improve the prediction accuracy of reservoirs,this paper carried out a study of geostatistical inversion based on deterministic inversion.First in fine well combined,to carry out the micro structure,on the basis of using sparse pulse inversion to the overall distribution characteristics of the reservoir of qualitative description,on this basis to improve seismic resolution of geostatistics inversion,obtaining high resolution probability of sandstone body,based on well data comprehensive analysis to achieve thin interbed of fine description.Research results show that geostatistical inversion can complex mixed in the studied area more elaborate carving deposition of thin reservoir,reservoir prediction results more in line with the geological law,probability and better matched well point in sandstone,sandstone thin reservoir identification precision,sand prediction coincidence rate was 73%,and the paper studies on the similar reservoir prediction has certain reference significance.
作者
张学敏
但玲玲
张军林
张雨
杨丽娜
秦欣
ZHANG Xuemin;DAN Lingling;ZHANG Junlin;ZHANG Yu;YANG Lina;QIN Xin(CNOOC Energy Development Co.,Ltd.,Engineering Technology Branch,Tianjin 300452,China)
出处
《石油化工应用》
CAS
2022年第6期71-74,共4页
Petrochemical Industry Application
基金
中海油能源发展股份有限公司重大科技专项,项目编号:HFZXKT-GJ2020-02-01。
