波谱学杂志 ›› 2014, Vol. 31 ›› Issue (4): 579-586.doi: 10.11938/cjmr20140412

• 研究论文 • 上一篇    下一篇

利用NMR 技术判识混油钻井液条件下钻遇的油层

王志战1*,秦黎明1,盖姗姗2,徐锐 3,刘小红4,蔡清5   

  1. 1. 中国石化石油工程技术研究院测录井研究所,北京 100101;
    2. 中石化胜利石油工程有限公司地质录井公司,山东 东营 257064;
    3. 中石化华北石油工程有限公司录井分公司,河南 郑州 450042;
    4. 中国石化东北油气分公司勘探开发研究院,吉林 长春 130062;
    5. 苏州纽迈电子科技有限公司,江苏苏州 215163
  • 收稿日期:2014-02-19 修回日期:2014-10-28 出版日期:2014-12-05 发布日期:2014-12-05
  • 通讯作者: 王志战 E-mail:pjes@163.com
  • 作者简介:王志战(1969-),男,山东栖霞人,博士,教授级高工,主要研究方向为低场核磁共振录井技术、地层压力随钻预测和监测技术、非常规油气储层快速评价技术. 电话:010-84988382,E-mail:wangzz.sripe@sinopec.com. *通讯联系人.
  • 基金资助:

    中石化石油工程技术服务有限公司资助项目(JSG11018).

The Effects of Oil-Mixed Drilling Fluid on Oil Layer Identification Studied by NMR Spectroscopy

WANG Zhi-zhan1*,QIN Li-ming1,GAI Shan-shan2,XU Rui3,LIU Xiao-hong4,CAI Qing5   

  1. 1. SINOPEC Research Institute of Petroleum Engineering, Beijing 100101, China;
    2. Geological Logging Branch Company of Shengli Oilfield Corporation of SINOPEC, Dongying 257064, China;
    3. Logging Branch Company of North China Petroleum Engineering Corporation of SINOPEC, Zhengzhou 450042, China;
    4. Petroleum Exploration and Production Research Institute of Northeast Corporation of SINOPEC, Changchun 130062, China;
    5. Niumai Electronic Technology Limited Company, Suzhou 215163, China
  • Received:2014-02-19 Revised:2014-10-28 Online:2014-12-05 Published:2014-12-05
  • About author:*Corresponding author:WANG Zhi-zhan, Tel: 010-84988382, E-mail: wangzz.sripe@sinopec.com.
  • Supported by:

    中石化石油工程技术服务有限公司资助项目(JSG11018).

摘要:

混油钻井液对色谱、光谱录井技术发现和评价油气层带来了严重影响.为了准确识别和定量评价混油钻井液条件下所钻遇的油层,创新采用高分辨率核磁共振录井技术随钻检测钻井液T2 谱及其含油率的变化.不同油品在钻井液中的混合实验结果表明,混油钻井液为水包油乳液,两种不同的油品在钻井液中难以混合,在T2 谱上呈现相互独立的峰,据此可以直观、准确地识别所钻遇的油层;并可根据归一法、外标法定量评价钻井液中的地层油含油率.经现场应用,取得了与室内实验相一致的效果,证明了该项技术的有效性.

关键词: 混油钻井液, 油层识别, 含油率, 核磁共振, 定量评价

Abstract:

The use of oil-mixed drilling fluid application may potentially affect the discovery of oil layer, as well as the results of chromatography or spectrum surface
logging. To study and quantify how the use of oil-mixed drilling fluid would affect the results of logging, high-resolution NMR surface logging while drilling technology was used to measure T2 spectrum and oil content with different levels of oil added into the drilling fluid. The results indicated that oil-mixed drilling fluid exhibited properties of oil in water, and could not blended with the oil layer. As a result, the T2 spectrum showed two independent peaks of oil. It is concluded that the oil layer can be identified accurately with the use of oil-mixed drilling fluid. In addition, by using the normalization method or external standard method, it was shown that the oil content of layer oil can be calculated in the drilling fluid. Field experiments were used to confirm the results of laboratory experiments.

Key words: oil-mixed drilling fluid, oil layer identification, oil content, NMR, quantified evaluation

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