川东北普光地区雷一段储层地球物理特征及其地震正演模型分析  

Geophysical Characteristics and Analysis on Seismic Forward Modeling of Leiyi Formation Reservoir in Puguang Area

作　　者：王身建 徐坤[1,2] 刘青 曾正清 林泽纯 黄志强 WANG Shenjian;XU Kun;LIU Qing;ZENG Zhengqing;LIN Zechun;HUANG Zhiqiang(School of Petroleum Engineering,Guangdong University of Petrochemical Technology,Maoming 525000,China;Guangdong Unconventional Energy Sources Engineering Technology Research Center,Guangdong University of Petrochemical Technology,Maoming 525000,China;Exploration&Development Research Institute of Zhongyuan Oilfield Company,SINOPEC,Zhengzhou 450018,China;Equipment Management Department,Guangdong University of Petrochemical Technology,Maoming 525000,China)

机构地区：[1]广东石油化工学院石油工程学院,广东茂名525000 [2]广东石油化工学院广东省非常规能源工程技术研究中心,广东茂名525000 [3]中国石油化工集团有限公司中原油田分公司勘探开发研究院,河南郑州450018 [4]广东石油化工学院资产设备管理部,广东茂名525000

出　　处：《广东石油化工学院学报》2025年第1期35-39,共5页Journal of Guangdong University of Petrochemical Technology

基　　金：广东石油化工学院人才引进项目(2023rcyj2023)。

摘　　要：川东北普光地区雷一段碳酸盐岩储层以厚度薄、层数多、低孔低渗为特征,且具有地震预测难度大等特点。基于测井地球物理资料建立了楔状储层地质模型。之后的正演模拟剖面表明:当储层厚度小于8 m时,在正演剖面上表现为较弱振幅异常特征,且随着厚度的增加,振幅异常逐渐减弱;而当储层厚度等于8 m时,在储层的地震振幅突然异常增强,剖面上呈现“亮点”的地震反射特征,且随着储层厚度的增加,对应的地震振幅增强;可见研究区雷一段虽发育薄层储层,但这类薄层储层也是有地震响应的。本文对普光地区雷一段储层地震响应的研究具有一定的参考价值。The carbonate reservoirs in the Leiyi Formation section of the Puguang area in northeastern Sichuan are characterized by thin thickness,multiple layers,low porosity and permeability,and high difficulty in seismic prediction.The geological model of wedge reservoir is established based on logging geophysical data.Subsequently,the forward simulation in section shows:When the reservoir thickness is less than 8m,it shows a weak amplitude anomaly in the forward profile,and the amplitude anomaly gradually decreases with the increase of the thickness;However,when the reservoir thickness is equal to 8 m,the seismic amplitude of the reservoir is suddenly enhanced abnormally,and the seismic reflection features of bright spots are displayed on the profile.With the increase of the reservoir thickness,the corresponding seismic amplitude becomes stronger.Obviously,although thin reservoirs are developed in the first member of Lei Formation in the study area,such thin reservoirs also have seismic responsive.This study provides a certain insight for the examination of reservoir seismic response in the first member of Lei Formation in Puguang area.

关 键 词：普光地区 雷一段 测井特征 正演模型 地震响应 

分 类 号：TE112.23[石油与天然气工程—油气勘探]