中国石油勘探 ›› 2018, Vol. 23 ›› Issue (6): 113-118.DOI: 10.3969/j.issn.1672-7703.2018.06.013

• 工程技术 • 上一篇    

脉冲中子全谱饱和度测井在大王庄油田的应用

刘萍1, 高振涛1, 李晓娇1, 马晓静1, 岳伟2, 刘俣含3, 马彪4, 丁瑞霞1   

  1. 1 中国石油华北油田公司勘探开发研究院;
    2 中国石油华北油田公司储气库管理处;
    3 长江大学石油工程学院研究生学院;
    4 中国石油华北油田公司第一采油厂
  • 收稿日期:2018-01-07 修回日期:2018-09-10 出版日期:2018-11-15 发布日期:2018-11-13
  • 基金资助:
    中国石油华北油田公司科研项目“生产测井、测试资料深化研究与应用效果分析”(2017-HB-B24)。

Application of pulse neutron full spectrum logging in Dawangzhuang oilfield

Liu Ping1, Gao Zhentao1, Li Xiaojiao1, Ma Xiaojing1, Yue Wei2, Liu Yuhan3, Ma Biao4, Ding Ruixia1   

  1. 1 Research Institute of Exploration and Development, PetroChina Huabei Oilfield Company;
    2 Underground Gas Storage Management Agency, PetroChina Huabei Oilfield Company;
    3 Graduate School of Petroleum Engineering College, Yangtze University;
    4 The First Oil Production Plant, PetroChina Huabei Oilfield Company
  • Received:2018-01-07 Revised:2018-09-10 Online:2018-11-15 Published:2018-11-13
  • Supported by:
     

摘要: 大王庄油田处于开发后期,掌握剩余油情况至关重要,单一饱和度测井方法难以满足精细解释评价的需要。脉冲中子全谱饱和度测井集碳氧比能谱、氯能谱、中子寿命、氧活化测井技术于一体,一次下井能录取多条测井曲线,在低矿化度、高泥质情况下能准确识别水淹层。文章介绍了脉冲中子全谱饱和度测井原理、技术特点、资料解释原理等,并创新性地把全谱饱和度测井数据与常规测井数据有机结合,分层位制作了大王庄油田的交会解释图版,制定了新的解释标准,显著提高了全谱测井的解释符合率;有效反映了储层剩余油饱和度的变化情况,为识别水淹层、寻找潜力层、确定剩余油分布规律,为油田的挖潜增储提供了可靠依据,发挥了重要作用。

 

关键词: 全谱测井, 剩余油, 饱和度, 碳氧比, 水淹层

Abstract: Dawangzhuang oilfield is in the late stage of development, so it is very important to find out the distribution of remaining oil. Saturation logging method alone can't meet the requirements of fine interpretation and evaluation. Pulsed neutron full spectrum saturation logging, integrating C/O spectrum, chlorine spectrum, neutron lifetime and oxygen activation logging technology, can record several logging curves in one trip and identify water-flooded zones accurately under low salinity and high shale content. The principle, technical characteristics and data interpretation principle of pulsed neutron full spectrum saturation logging are introduced, and the full spectrum saturation logging data are creatively combined with conventional logging data, the intersection interpretation chart of different layers in Dawangzhuang oilfield is compiled, and the new interpretation standard is set to significantly improve the coincidence rate of full spectrum logging interpretation. The interpretation results can reflect the variation of remaining oil saturation in reservoir accurately, providing reliable basis for identifying watered-out zones, searching potential zones and figuring out the distribution law of remaining oil. It will be a handy and reliable tool in tapping remaining oil and increasing oil reserves.

Key words: full spectrum logging, remaining oil, saturation, C/O, water flooded layer

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