摘要
松辽盆地X地区萨零组储层测井系列比较陈旧,缺少核磁共振测井资料,且所测测井项目差异大,部分井缺少自然伽马、侧向电阻率、声波时差等基础曲线数据,给储层测井评价带了很大的困难.本文通过岩性、物性、含油性与电性的相关性分析,建立了矿物组分(泥质/钙质含量)的计算模型,构建了不同测井系列的孔隙度、渗透率及原始含水饱和度模型;采用试油法、含油产状法等确定了有效厚度物性下限(孔隙度≥20%、渗透率≥4×10^(-15)m^(2))及电性下限,并将储层分为Ⅰ、Ⅱ、Ⅲ类.研究表明,微电位电阻率可有效替代自然伽马计算矿物组分,多参数叠合确定的储层甜点区面积达23.14 km^(2).研究内容可为甜点优选、井位部署等提供依据.
This study addresses the challenges in logging evaluation of the Saling Formation reservoirs in Block X of the Songliao Basin,where the outdated logging suite lacks NMR data and exhibits significant discrepancies in measured parameters.Fundamental curves such as natural gamma ray,lateral resistivity,and acoustic time difference are absent in partial wells,imposing substantial limitations on reservoir evaluation.Through analyzing the correlations among lithology,physical properties,oil-bearing characteristics,and electrical responses,calculation models for mineral components(shale/calcium contents)were established.Additionally,porosity,permeability,and original water saturation models were constructed for different logging series,adapted to various logging series.Physical property thresholds for effective thickness(porosity≥20%,permeability≥4×10^(-15) m^(2))and electrical property boundaries were determined using oil testing and oil occurrence methods,enabling reservoir classification into TypesⅠ,Ⅱ,andⅢ.Results demonstrate that micro-potential resistivity can effectively substitute for natural gamma ray in mineral component calculation.The sweet spot area identified by multi-parameter overlay reaches 23.14 km^(2),providing a scientific basis for sweet spot optimization and well location deployment.This research establishes a systematic logging evaluation framework to overcome data scarcity,offering practical guidance for similar reservoir exploration in mature oil basins.
作者
高金彪
唐晓敏
宋延杰
孙雨
石颖
王宁
GAO JinBiao;TANG XiaoMin;SONG YanJie;SUN Yu;SHI Ying;WANG Ning(School of Earth Sciences,Northeast Petroleum University,Daqing 163318,China;National Key Laboratory of Multi Resource Collaborative Green Extraction of Continental Shale Oil,Northeast Petroleum University,Daqing 163318,China;State Key Laboratory of Acoustics and Marine Information,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China)
出处
《地球物理学进展》
北大核心
2025年第5期2050-2063,共14页
Progress in Geophysics
基金
黑龙江省自然科学基金(LH2024D012)资助。
关键词
测井评价方法
四性关系
有效厚度下限
储层分类
甜点区
Logging evaluation method
Four-property relationship
Lower limit of effective thickness
Reservoir classification
Sweet spot area
