摘要
保定凹陷为华北油田勘探开发重点区带,由于区域内油藏埋深浅,具有甲烷含量高、油质重等低熟油特点,还普遍存在生物降解及水洗破坏现象,使得气测组分特征已不具备评价敏感性,且实物显示级别均较高,录井评价中,Pg等参数均受到一定程度影响,现有录井解释评价技术表现出一定局限性,适用性变差。为有效解决油藏录井响应特征复杂、储层流体性质识别难等问题,通过试油定产数据及各项分析化验数据,整合相关影响因素提取敏感参数,利用统计分析软件进行分类判别并构建线性回归模型,使录井随钻解释符合率达到73.33%,满足了随钻快速评价储层流体性质的需要,并达到在现场推广应用的条件,同时为录井行业数智化转型提供支撑。
Baoding Sag is currently a key play for exploration and development.Due to the reservoirs with shallow burial depth of oil reservoirs in the region,there are not only characteristics of low-mature oil reservoirs such as high methane content and high oil density,but also widespread phenomena of biodegradation and water washing damage,making the gas composition characteristics no longer sensitive to evaluation,and the level of real object show is relatively high.In mud logging evaluation and analysis,parameters such as Pg are all affected to a certain extent.The existing mud logging interpretation and evaluation techniques show certain limitations,resulting in decreased applicability.To effectively solve the problems of the complex mud logging response characteristics of the reservoirs and difficult identification of reservoir fluid properties,the sensitive parameters were extracted by integrating relevant influencing factors through oil testing and productivity determination data as well as various analysis and testing data.Statistical analysis software was used to classify and discriminate,and a linear regression model was constructed.It has made the coincidence rate of mud logging interpretation while drilling reach 73.33%,meeting the need for rapid reservoir fluid property evaluation while drilling and meeting the conditions for on-site promotion and application,simultaneously providing support for the digital and intelligent transformation of mud logging industry.
作者
王灿丹婷
韩先明
孙红华
于伟高
张明扬
张文平
WANG Candanting;HAN Xianming;SUN Honghua;YU Weigao;ZHANG Mingyang;ZHANG Wenping(No.2 Mud Logging Company,BHDC,CNPC,Renqiu,Hebei 062552,China;Exploration Department of PetroChina Huabei Oilfield Company,Renqiu,Hebei 062550,China)
出处
《录井工程》
2025年第3期79-86,共8页
Mud Logging Engineering
基金
中国石油渤海钻探重大科技项目“录井随钻分析评价系统研发”(编号:2024ZD07F⁃02)。
关键词
保定凹陷
随钻评价
解释评价
判别分析
数智化
流体性质
Baoding Sag
evaluation while drilling
interpretation and evaluation
discriminant analysis
digital intelligence
fluid property
