川中资阳—东峰场区块须家河五段储层“四性”关系及应用  

“Four-properties”relationship and application in the fifth member of Xujiahe Formation in Ziyang-Dongfengchang Block of central Sichuan

作　　者：邹毅 刘成川[1] 邓美洲[1] 牛娜 韩智英 ZOU Yi;LIU Chengchuan;DENG Meizhou;NIU Na;HAN Zhiying(Research Institute of Exploration and Development,Sinopec Southwest China Oil&Gas Company,Chengdu,Sichuan 610041,China)

机构地区：[1]中国石化西南油气分公司勘探开发研究院,四川成都610041

出　　处：《油气藏评价与开发》2024年第3期484-491,503,共9页Petroleum Reservoir Evaluation and Development

基　　金：中国石化油田事业部开发导向项目“资阳—东峰场须五气藏潜力评价及部署优化”(YTBXD-XN2022-2)。

摘　　要：川中资阳—东峰场区块须家河五段(以下简称须五段)储层具有低孔、低渗且非均质性强的特点,为了建立可靠的测井解释模型以及确定有效储层下限,应用砂岩测井、录井、岩心及试气等资料,以岩心归位及测井曲线标准化为依据,开展储层“四性”关系研究,结果表明:岩性、物性、电性、含气性相关性较好,自然伽马随粒度减小而增大;电阻率曲线可以识别含钙砂岩;声波时差与孔隙度相关性好;含气性与物性呈正相关。在“四性”关系研究的基础上建立了孔隙度、渗透率及含水饱和度解释模型,并确定了储层判别标准。以上研究成果在生产中取得良好的应用效果,储层测井、试气和实验结果符合“四性”关系图版。通过测井解释模型计算的物性参数与岩心实验测试结果吻合;产气剖面测试结果与储层判别标准匹配。“四性”关系研究为测试方案设计提供了有效的技术支撑。The fifth member of Xujiahe Formation(Xu-5 member)in Ziyang-Dongfengchang Block of central Sichuan is characterized by low porosity,low permeability,and strong heterogeneity.This study aims to develop a reliable logging interpretation model and to establish the lower limits of effective reservoirs using well logging,core,and gas testing data.The research focuses on the correlation among four key properties:lithology,physical properties,electrical properties,and gas content following core homing and log normalization.A significant correlation exists between the lithology,physical properties,electrical properties,and gas content.Gamma ray readings increase as particle size decreases,aiding in sediment characterization.Resistivity curves effectively identify calcium-bearing sandstones.A strong positive correlation exists between sonic differential time and porosity.Gas content is positively correlated with physical properties,indicating richer gas zones correlate with specific log signatures.Based on these relationships,a comprehensive interpretation model for porosity,permeability,and water saturation was established,alongside criteria for reservoir identification.The application of these findings in production scenarios demonstrates consistency between reservoir logging,gas testing,and experimental results with the established four-properties relationship diagram.The calculated physical property parameters from the logging interpretation model align well with core test outcomes,and gas production profile testing corroborates the reservoir identification criteria.This study provides critical technical support for designing testing schemes and optimizing resource extraction.

关 键 词：东峰场 须五段 “四性”关系 测井解释 储层判别标准 

分 类 号：TE122[石油与天然气工程—油气勘探]