靖安油田低渗油藏气测组分分析技术创新及应用  

Innovation and application of gas logging component analysis technology in low permeability reservoir of Jing′an oilfield

作　　者：朱志锋 张玉良 彭述兴 敬小军 喻意 任立春 ZHU Zhifeng;ZHANG Yuliang;PENG Shuxing;JING Xiaojun;YU Yi;REN Lichun(No.4 Oil Production Plant of PetroChina Changqing Oilfield Company, Yulin, Shaanxi 718599, China;No.1 Mud Logging Company, BHDC,CNPC, Tianjin 300280,China)

机构地区：[1]中国石油长庆油田分公司第四采油厂,陕西省榆林市718599 [2]中国石油渤海钻探第一录井公司

出　　处：《录井工程》2022年第1期24-32,共9页Mud Logging Engineering

摘　　要：为提升注水低渗油藏开发效果,近年来靖安油田X油区推广水平井立体式开发模式,其水平井精准地质导向及水平段储层改造等环节,均需要高质量的油层解释评价技术来支撑。为此,在该油区开展录井气测组分分析研究,发现W_(h)值、B_(h)值、XC_(i)值(烃组分相对值)、E_(h)值(乙烷与其余重烃和之比)等气测派生参数与油层属性有强相关性。为明晰其相关规律,创建了气测原油烃组分校正法及气测烃组分总量TC归一TC_(n)法,并建立了气测3H图板、E_(h)与TC_(n)交会图板。新建图板解释成果应用于随钻解释,经试油及投产效果统计验证,油层解释符合率达85%以上,为该油区水平井随钻质量控制、钻后储层改造及见水井治理提供了录井解释评价新思路,建产效益明显。In order to improve the development effect of waterflood low permeability reservoirs,in recent years,the three-dimensional development mode of horizontal wells has been popularized in X oil region of Jing′an oilfield,the accurate geosteering of horizontal wells and the reservoir stimulation of horizontal sections need to be supported by high-quality reservoir interpretation and evaluation technology.Therefore,analyze and study the gas logging components of mud logging in this oil region,it is found that W_(h),B_(h),XC_(i)(hydrocarbon component relative value),E_(h)(ratio of ethane to the sum of other heavy hydrocarbons)and other derived parameters of gas logging are strongly correlated with oil layer attributes.To clarify the correlative discipline,the correction method of gas logging crude oil hydrocarbon components and TC_(n) normalization method of TC(total hydrocarbon components measured by gas logging)are created,and 3H chart and E_(h)-TC_(n) crossplot chart of gas logging are built.The interpretation results of newly-built charts are applied to the interpretation while drilling,the statistical verification of oil testing and production effect shows that the coincidence rate of oil layer interpretation is more than 85%,which provides new ideas of mud logging interpretation and evaluation for quality control while drilling for horizontal wells,and the reservoir stimulation and water yield well treatment after well completion,and the capacity construction benefits are obvious.

关 键 词：低渗油藏 气测组分 气测数据标准化 储层解释评价 地质导向 解释图板 

分 类 号：TE132.1[石油与天然气工程—油气勘探]