摘要
针对雷家地区沙四段页岩油储层需要分级评价的问题,应用扫描电镜、氮气吸附、高压压汞等技术及储层分级评价方法,开展了页岩储层孔喉特征分析及分级评价研究。结果表明,雷家地区沙四段页岩油储层孔隙分为大孔、中孔、小孔三类,可将碳酸盐岩页岩油储层分为三个级别五种类型;结合水力流动单元划分,明确了雷家地区不同级别储层平面分布特征,其中,杜三层Ⅰ级储层厚度中心主要分布于中部,高升层Ⅰ级储层厚度中心分布于东北部。
Aiming at the grading evaluation of shale oil reservoirs in the fourth member of Shahejie Formation in Leijia area,by using scanning electron microscopy,nitrogen adsorption,high pressure mercury injection and reservoir classification evaluation methods,the pore throat characteristics and classification evaluation are analyzed.The results indicate that pores of the Sha 4 shale oil reservoirs in Leijia area can be divided into three categories:large pores,medium pores,and small pores.Carbonate shale oil reservoirs can be classified into three grades and five types.Combined with the division of hydraulic flow units,the planar distribution characteristics at different grades have been clarified.As for the gradeⅠreservoirs,the thickness center of Dusan layer is in the middle,of Gaosheng layer is in the northeast.
作者
李宗亮
王延山
杨庆宁
黄双泉
徐建斌
侯拓
LI Zongliang;WANG Yanshan;YANG Qingning;HUANG Shuangquan;XU Jianbin;HOU Tuo(Liaohe Oilfield Company,PetroChina,Panjin 124010,Liaoning,China;Geological Research Center,Bureau of Geophysical Prospecting Inc.,PetroChina,Zhuozhou 072751,Hebei,China)
出处
《石油地质与工程》
CAS
2024年第2期66-71,76,共7页
Petroleum Geology and Engineering
基金
中国石油油气与新能源分公司重大科技专项“辽河油田探区‘十四五’油气资源评价”(2023YQX20104)。
关键词
雷家地区
页岩油
物性下限
分级评价
储层分类
Leijia area
shale oil
lower limit of physical property
grading evaluation
reservoir classification
