摘要
为了解决储集层含水性识别难的问题,2015年在长庆区域气探井引进离子色谱录井技术。在介绍离子色谱录井分析技术的检测原理、样品分析方法的基础上,采集室内试验完成的20多口井离子色谱分析数据,结合测试层段试气结果,整理并建立了适用于长庆区域气探井储集层含水性识别方法,并利用离子色谱总矿化度数值法及总矿化度与钠氯系数(Na^+/Cl^-)交会图板法判断储集层含水性。现场试验证明,解释符合率达到80%以上,解决了长庆区域气探井地层水的识别难题,具有较高的推广应用价值。
In order to solve the problem of difficult identification of reservoir aquosity,ion chromatography logging technology was introduced into gas exploration wells in Changqing region in 2015.Based on the introduction of the detection principle and sample analysis method of ion chromatographic logging analysis technology,the ion chromatographic analysis data of more than 20 wells completed in laboratory tests were collected,and combined with the gas test results of the test zone,the identification method of reservoir aquosity suitable for gas exploration wells in Changqing region was reorganized and established.The reservoir aquosity was determined by the numerical method of total salinity and the intersection chart method of total salinity and sodium-chloride coefficient(Na^+/Cl^-).The field test shows that the coincidence rate of interpretation is more than 80%,which solves the problem of formation water identification of gas exploration wells in Changqing region,and has high application value.
作者
王刚
阎荣辉
范毅君
刘永伟
方铁园
焦艳爽
刘芳芳
Wang Gang;Yan Ronghui;Fan Yijun;Liu Yongwei;Fang Tieyuan;Jiao Yanshuang;Liu Fangfang(Office D508,Integrated Research Building,Changqing Oilfield,Fengcheng Road(4),Weiyang District,Xi'an City,Shaanxi Province,710018,China)
出处
《录井工程》
2019年第4期68-73,148,共7页
Mud Logging Engineering
关键词
离子色谱
录井
储集层
长庆区域
气探井
总矿化度
钠氯系数
解释评价
图板
ion chromatography
mud logging
reservoir
sample processing prior to the experiment
total salinity
so-dium-chloride coefficient
interpretation and evaluation
chart
