Advanced Search
Volume 38 Issue 3
. 
Turn off MathJax
Article Contents
Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2016  >  38(3): 402-406
Li Guangyou, Ma Zhongliang, Zheng Jiaxi, Bao Fang, Zheng Lunju. NMR analysis of the physical change of oil shales during in situ pyrolysis at different temperatures[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2016, 38(3): 402-406. doi: 10.11781/sysydz201603402
Citation: Li Guangyou, Ma Zhongliang, Zheng Jiaxi, Bao Fang, Zheng Lunju. NMR analysis of the physical change of oil shales during in situ pyrolysis at different temperatures[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2016, 38(3): 402-406. doi: 10.11781/sysydz201603402
shu

NMR analysis of the physical change of oil shales during in situ pyrolysis at different temperatures

doi: 10.11781/sysydz201603402
  • 1.

    Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

  • 2. SINOPEC Key Laboratory of Petroleum Accumulation Mechanisms, Wuxi, Jiangsu 214126, China

  • Received Date: 2015-12-14
  • Rev Recd Date: 2016-03-12
  • Publish Date: 2016-05-28
    Abstract
  • The connectivity between pores and fissures during in situ oil shale pyrolysis is an important element which controls shale oil and gas recoverable amount. However, conventional petrophysical testing methods can not cover all levels of pores and fissures in oil shales. Nuclear magnetic resonance (NMR) can show fluids in core pores and fissures, hence can be used to identify different levels of pores and fissures. We carried out NMR tests with oil shale samples by simulating the same conditions as 500 m underground and heating the samples to different temperatures. Results showed that the porosity of oil shales change according to temperature during in situ exploitation. Porosity increases from 250 to 350℃, decreases slightly from 350 to 400℃, and then increases again after 400℃. Permeability remains stable when temperature is lower than 400℃, increases by 102 times from 400 to 450℃, and increases by 104 times at 500℃. The in situ retorting of oil shales should be made at a temperature higher than 400℃; however, oil shales underground might not reach 400℃ in many areas. In this case, we should explore at a higher temperature and heat for longer time, or fracture oil shales before heating.

     

    • FullText(HTML)
  • loading
    • References(15)
  • [1]
    刘洪林,刘德勋,方朝合,等.利用微波加热开采地下油页岩的技术[J].石油学报,2010,31(4):623-625. Liu Honglin,Liu Dexun,Fang Chaohe,et al.Microwave heating technology of in situ oil shale developing[J].Acta Petrolei Sinnica,2010,31(4):623-625.
    [2]
    王红岩,赵群,刘洪林,等.中国油页岩资源分布及技术进展[M].北京:石油工业出版社,2013. Wang Hongyan,Zhao Qun,Liu Honglin,et al.The distribution and advances in production technologies of oil shale in China[M].Beijing:Petroleum Industry Press,2013.
    [3]
    赵静,冯增朝,杨栋,等.基于三维CT图像的油页岩热解及内部结构变化特征分析[J].岩石力学与工程学报,2014,33(1):112-117. Zhao Jing,Feng Zengchao,Yang Dong,et al.Study of pyrolysis and internal structural variation of oil shale based on 3D CT images[J].Chinese Journal of Rock Mechanics and Engineering,2014,33(1):112-117.
    [4]
    孙军昌,陈静平,杨正明,等.页岩储层岩芯核磁共振响应特征实验研究[J].科技导报,2012,30(14):25-30. Sun Junchang,Chen Jingping,Yang Zhengming,et al.Experimental study of the NMR characteristics of shale reservoir rock[J].Science & Technology Review,2012,30(14):25-30.
    [5]
    黄磊,申维.页岩气储层孔隙发育特征及主控因素分析:以上扬子地区龙马溪组为例[J].地学前缘,2015,22(1):374-385. Huang Lei,Shen Wei.Characteristics and controlling factors of the formation of pores of a shale gas reservoir:A case study from Longmaxi Formation of the Upper Yangtze region,China[J].Earth Science Frontiers,2015,22(1):374-385.
    [6]
    赵蕾.核磁共振在储层物性测定中的研究及应用[D].青岛:中国石油大学,2010. Zhao Lei.Research and application of NMR in measurement of reservoir physical property[D].Qingdao:China University of Petroleum,2010.
    [7]
    郑伦举,秦建中,何生,等.地层孔隙热压生排烃模拟实验初步研究[J].石油实验地质,2009,31(3):296-302,306. Zheng Lunju,Qin Jianzhong,He Sheng,et al.Preliminary study of formation porosity thermocompression simulation experiment of hydrocarbon generation and expulsion[J].Petroleum Geology & Experiment,2009,31(3):296-302,306.
    [8]
    马中良,郑伦举,李志明.烃源岩有限空间温压共控生排烃模拟实验研究[J].沉积学报,2012,30(5):955-963. Ma Zhongliang,Zheng Lunju,Li Zhiming.The thermocompression simulation experiment of source rock hydrocarbon generation and expulsion in formation porosity[J].Acta Sedimentologica Sinica,2012,30(5):955-963.
    [9]
    于炳松.页岩气储层孔隙分类与表征[J].地学前缘,2013,20(4):211-220. Yu Bingsong.Classification and characterization of gas shale pore system[J].Earth Science Frontiers,2013,20(4):211-220.
    [10]
    王志战.页岩油气层二维核磁共振分析与评价技术[R].北京:中国石油化工股份有限公司石油工程技术研究院,2014. Wang Zhizhan.2D NMR analyis and evaluation technology of shale oil and gas reservoir[R].Beijing:SINOPEC Research Institute of Petroleum Engineering,2014.
    [11]
    李杰林.基于核磁共振技术的寒区岩石冻融损伤机理试验研究[D].长沙:中南大学,2012. Li Jielin.Experiment study on deterioration mechanism of rock under the conditions of freezing-thawing cycles in cold regions based on NMR technology[D].Changsha:Central South University,2012.
    [12]
    牛强,王志战,曾溅辉,等.2D NMR在泥页岩物性及流体评价中的应用探讨[J].波谱学杂志,2014,31(2):206-213. Niu Qiang,Wang Zhizhan,Zeng Jianhui,et al.Evaluating shale porosity and oil content with 2D NMR[J].Chinese Journal of Magnetic Resonance,2014,31(2):206-213.
    [13]
    李晓强.基于核磁共振的岩心分析实验及应用研究[D].成都:西南石油大学,2012. Li Xiaoqiang.Core analysis and application based on NMR technology[D].Chengdu:Southwest Petroleum University,2012.
    [14]
    刘中华,杨栋,薛晋霞,等.干馏后油页岩渗透规律的实验研究[J].太原理工大学学报,2006,37(4):414-416. Liu Zhonghua,Yang Dong,Xue Jinxia,et al.Experimental study on seepage law of distilled oil shale[J].Journal of Taiyuan University of Technology,2006,37(4):414-416.
    [15]
    严轩辰.农安和桦甸油页岩力学性能及其水力压裂与破碎关键参数研究[D].长春:吉林大学,2012. Yan Xuanchen.Research on mechanical properties of oil shale in Nong'an and Huadian and key parameters of hydraulic fracturing[D].Changchun:Jilin University,2012.
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Citation
    XML
    PDF-CN

    Article Metrics

    Article views (1562) PDF downloads(1171) Cited by()
    Proportional views
    Related

    Website Copyright © Wuxi Research Institute of Petroleum Geology, SINOPEC 苏ICP备15009037号 苏公网安备32021102000780号

    Address：No. 2060, Lihu Avenue, Wuxi, Jiangsu   (214126) Tel：0510-68787204，68787203 Fax：0510-68787113 Email：sysydz.syky@sinopec.com

    Supported by: Beijing Renhe Information Technology Co. Ltd    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return