录井工程 ›› 2023, Vol. 34 ›› Issue (2): 45-50.doi: 10.3969/j.issn.1672-9803.2023.02.008

• 解释评价 • 上一篇    下一篇

离子色谱录井技术在气探井储层含水性识别中的应用

李仕芳①, 贾浩①, 盖文臣①, 方铁园②, 姚远②, 张春朋②   

  1. ①中国石油长庆油田分公司第十采油厂;
    ②盘锦中录油气技术服务有限公司
  • 收稿日期:2023-04-12 出版日期:2023-06-25 发布日期:2023-07-12
  • 作者简介:李仕芳 工程师,1987年生,2010年毕业于中国石油大学（华东）资源勘查工程专业,现在中国石油长庆油田分公司第十采油厂从事产能建设工作。通信地址：745100 甘肃省庆阳市庆城县人民路凤城园3区第十采油厂产能建设项目组。电话：15095563162。E-mail：lsf100_cq@petrochina.com.cn

Application of ion chromatography logging technology in water bearing property identification of gas exploration well reservoirs

LI Shifang①, JIA Hao①, GAI Wenchen①, FANG Tieyuan②, YAO Yuan②, ZHANG Chunpeng②   

  1. ①No.10 Oil Production Plant of PetroChina Changqing Oilfield Company, Qingyang, Gansu 745100,China;
    ②Panjin Zhonglu Oil and Gas Technology Service Co., Ltd., Panjin, Liaoning 124000,China
  • Received:2023-04-12 Online:2023-06-25 Published:2023-07-12

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摘要： 鄂尔多斯盆地气探井解释评价的主要难点是储层含水性识别,地层水成分主要由无机离子组成,因而利用离子色谱录井技术分析无机离子含量的变化,可对储层含水性进行识别。总结鄂尔多斯盆地20多口井离子色谱录井岩心数据,结合后期开采测试结果,利用离子色谱派生参数钠氯系数（Na+/Cl-）、Na+权重、（K++Ca2+）权重、氯镁系数（Cl-/Mg2+）、（K++Ca2+）/Cl-建立了储层含水性识别雷达图,气层、差气层呈现多边形面积饱满形态,水层呈现尖峰突兀形态,从而实现了储层含水性定量化解释评价。该方法适用于层间、井间对比,从后期应用效果看,气探井解释符合率从79.32%提高到了82.35%,改进效果显著。

关键词: 离子色谱, 含水性识别, 派生参数, 雷达图, 定量解释评价

Abstract: The main difficulty in interpreting and evaluating gas exploration wells in Ordos Basin is the water bearing property identification of the reservoirs. The composition of formation water is mainly composed of inorganic ions, and using ion chromatography logging technology to analyze the changes in inorganic ion content can identify the water bearing properties of the reservoirs. Based on summarizing the core data of more than 20 wells with ion chromatography logging in Ordos Basin, and combined with the results of later production tests, the derived parameters of ion chromatography, such as sodium-chlorine coefficient（Na+/Cl-）, Na+ weight,（K++Ca2+） weight,chlorine-magnesium coefficient（Cl-/Mg2+） and （K++Ca2+）/Cl- ratio, were used to establish the identification radar chart of reservoir water bearing properties. The gas layers and poor gas layers present a polygonal area in full shape, while the water layers present a sharp and abrupt shape, thus achieving quantitative interpretation and evaluation. This method is suitable for interlayer and interwell comparisons. From the later application results,the interpretation coincidence rate of gas exploration wells was increased from 79.32% to 82.35%. The improvement effect is remarkable.

Key words: ion chromatography, water bearing identification, derived parameter, radar chart, quantitative interpretation and evaluation

中图分类号: 

  • TE132.1
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