相邻点渗透率级差在储层精细描述中的应用——以惠州凹陷H油田为例  

Application of permeability ratio of adjacent points in detailed reservoir description:Taking H Oilfield in Huizhou Sag as an example

作　　者：李庆明 戴建文 衡立群 王华 吴文娟 LI Qingming;DAI Jianwen;HENG Liqun;WANG Hua;WU Wenjuan(Shenzhen Branch,CNOOC Limited(China),Shenzhen 518054,Guangdong)

机构地区：[1]中海石油(中国)有限公司深圳分公司,广东深圳518054

出　　处：《长江大学学报（自然科学版）》2024年第4期50-55,共6页Journal of Yangtze University(Natural Science Edition)

基　　金：国家科技重大专项“南海东部海域勘探领域及关键技术”(2016ZX05024-224)。

摘　　要：无论储层构型研究还是流动单元分析,界面的识别是关键。相邻点渗透率级差是相邻两个数据点的测井解释渗透率最大值与最小值之比,对于由沉积、成岩作用变化引起的储层孔隙结构和物性变化非常敏感。引入相邻点渗透率级差这一新参数,可有效弥补测井曲线对低级次界面识别能力不足的缺点,提高界面识别的精度,明确3级和5级构型界面的存在及其准确位置,将储层构型研究推向更深层次;利用相邻点渗透率级差进行流动单元的划分,可快速识别流动单元界面,计算流动单元分类的界限值,并明确各类流动单元的地质含义。Whether it is architectural elements analysis or flow units analysis,the identification of boundary is the key point.Permeability ratio of adjacent points is the ratio of the maximum and minimum permeability values of logging interpretation of two adjacent data points,which is very sensitive to changes in reservoir pore structure and properties caused by changes in sedimentation and diagenesis.This paper introduces a new parameter,permeability ratio of adjacent points,which can effectively make up for the deficiency of well log in identifying low-level boundary,improve the identification accuracy of boundary,clarify the existence and accurate location of level 3 and level 5 architectural elements boundary,and push the research of architectural elements to a deeper level.Permeability ratio of adjacent points can also be used to divide flow units,quickly identify flow unit interfaces,calculate the boundary value of flow units,and clarify the geological meaning of various flow units.

关 键 词：储层构型 流动单元 界面识别 相邻点渗透率级差 层次分级 

分 类 号：TE122[石油与天然气工程—油气勘探] P631.84[天文地球—地质矿产勘探]