Advanced Search
Volume 39 Issue 1
. 
Turn off MathJax
Article Contents
Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2017  >  39(1): 112-119
Zhang Hao, Chen Gang, Zhu Yushuang, Dang Yongchao, Chen Juan, Wang Hengli, Si Yang, Bai Chao, Li Xue. Quantitative characterization of microscopic pore throat structure in tight sandstone oil reservoirs:A case study of Chang7 reservoir in Xin'anbian oil field, Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2017, 39(1): 112-119. doi: 10.11781/sysydz201701112
Citation: Zhang Hao, Chen Gang, Zhu Yushuang, Dang Yongchao, Chen Juan, Wang Hengli, Si Yang, Bai Chao, Li Xue. Quantitative characterization of microscopic pore throat structure in tight sandstone oil reservoirs:A case study of Chang7 reservoir in Xin'anbian oil field, Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2017, 39(1): 112-119. doi: 10.11781/sysydz201701112
shu

Quantitative characterization of microscopic pore throat structure in tight sandstone oil reservoirs:A case study of Chang7 reservoir in Xin'anbian oil field, Ordos Basin

doi: 10.11781/sysydz201701112
  • 1.

    State Key Laboratory of Continental Dynamics/Department of Geology, Northwest University, Xi'an, Shaanxi 710069, China

  • 2. The 1 st Oil Production Factory, Changqing Oilfield Branch Company, PetroChina, Yan'an, Shaanxi 716000, China

  • 3. Research Institute of Exploration and Development, Changqing Oilfield Branch Company, PetroChina, Xi'an, Shaanxi 710069, China

  • 4. Chuanqing Drilling Engineering Company, Institute of Engineering Technology, PetroChina, Xi'an, Shaanxi 710018, China

  • Received Date: 2016-07-11
  • Rev Recd Date: 2016-11-28
  • Publish Date: 2017-01-28
    Abstract
  • The Chang7tight sandstone oil reservoir in the Xin'anbian oil field in the Ordos Basin has good potential for hydrocarbon exploration. However, the studies of microscopic pore throat structure were limited, which restricted tight oil exploration and long-term development. Size, shape and spatial distribution of pore throats in tight oil reservoirs were studied in this paper by using scanning electron microscope (SEM), casting thin section, high-pressure mercury injection and Nano-CT technologies. Pores in the Chang7tight oil reservoir in the Xin'anbian oil field were divided into three categories, namely intergranular pores, dissolution pores and microfractures. A large number of nanoscale pore throats developed in this area, which contributed to reservoir capacity and permeability. Pore throat distributions on capillary pressure curves of different samples showed that when threshold pressure is less than 1MPa, there are many micron-sized pores with a good connectivity and pore throats are large tubular and striped with throat diameters being in the range of 100-380nm. When the threshold pressure ranges from 1to 3MPa, there are many nanoscale pores with a good connectivity locally, intragranular dissolution pores are developed and pore throats are tube bundle and spherical shape with throat diameter being in the range of 75-250nm. When the threshold pressure is greater than 3MPa, small isolated spherical nanopores occur, leading to a poor vertical connectivity, only local micro-fracture development provides storage space, and throat diameter is concentrated in the range of 15-75nm.

     

    • FullText(HTML)
  • loading
    • References(24)
  • [1]
    贾承造,邹才能,李建忠,等.中国致密油评价标准、主要类型、基本特征及资源前景[J].石油学报,2012,33(3):343-350. Jia Chengzao,Zou Caineng,Li Jianzhong,et al.Assessment criteria,main types,basic features and resource prospects of the tight oil in China[J].Acta Petrolei Sinica,2012,33(3):343-350.
    [2]
    林森虎,邹才能,袁选俊,等.美国致密油开发现状及启示[J].岩性油气藏,2011,23(4):25-30. Lin Senhu,Zou Caineng,Yuan Xuanjuan,et al.Status quo of tight oil exploitation in the United States and its implication[J].Lithologic Reservoirs,2011,23(4):25-30.
    [3]
    Zhao Huawei,Ning Zhengfu,Wang Qing,et al.Petrophysical characterization of tight oil reservoirs using pressure-controlled porosimetry combined with rate-controlled porosimetry[J].Fuel,2015,154:233-242.
    [4]
    姚泾利,邓秀芹,赵彦德,等.鄂尔多斯盆地延长组致密油特征[J].石油勘探与开发,2013,40(2):150-158. Yao Jingli,Deng Xiuqin,Zhao Yande,et al.Characteristics of tight oil in Triassic Yanchang Formation,Ordos Basin[J].Petroleum Exploration and Development,2013,40(2):150-158.
    [5]
    杨华,李士祥,刘显阳.鄂尔多斯盆地致密油、页岩油特征及资源潜力[J].石油学报,2013,34(1):1-11. Yang Hua,Li Shixiang,Liu Xianyang.Characteristics and resource prospects of tight oil and shale oil in Ordos Basin[J].Acta Petrolei Sinica,2013,34(1):1-11.
    [6]
    张文正,杨华,李剑锋,等.论鄂尔多斯盆地长7段优质油源岩在低渗透油气成藏富集中的主导作用:强生排烃特征及机理分析[J].石油勘探与开发,2006,33(3):289-293. Zhang Wenzheng,Yang Hua,Li Jianfeng,et al.Leading effect of high-class source rock of Chang 7 in Ordos Basin on enrichment of low permeability oil-gas accumulation:Hydrocarbon generation and expulsion mechanism[J].Petroleum Exploration and Deve-lopment,2006,33(3):289-293.
    [7]
    邹才能,杨智,陶士振,等.纳米油气与源储共生型油气聚集[J].石油勘探与开发,2012,39(1):12-25. Zou Caineng,Yang Zhi,Tao Shizhen,et al.Nano-hydrocarbon and the accumulation in coexisting source and reservoir[J].Petroleum Exploration and Development,2012,39(1):12-25.
    [8]
    冯胜斌,牛小兵,刘飞,等.鄂尔多斯盆地长7致密油储层储集空间特征及其意义探讨[J].低渗透油气田,2012(3):26-30. Feng Shengbin,Niu Xiaobing,Liu Fei,et al.Exploring the characte-ristics and significance of reservoir space of Chang 7 tight oil reservoirs in Ordos Basin[J].Low Permeability Oil & Gas Fields,2012(3):26-30.
    [9]
    尤源,牛小兵,冯胜斌,等.鄂尔多斯盆地延长组长7致密油储层微观孔隙特征研究[J].中国石油大学学报(自然科学版),2014,38(6):18-23. You Yuan,Niu Xiaobing,Feng Shengbin,et al.Study of pore features in Chang7 tight oil reservoir,Yanchang layer,Ordos Basin[J].Journal of China University of Petroleum,2014,38(6):18-23.
    [10]
    王秀娟,王明磊,赵爱彬.鄂尔多斯盆地延长组长7致密油储层微观特征[J].岩性油气藏,2014,26(3):79-83. Wang Xiujuan,Wang Minglei,Zhao Aibin.Microscopic characteristics of Chang 7 tight sandstone reservoir in Ordos Basin[J].Lithologic Reservoirs,2014,26(3):79-83.
    [11]
    喻建,马捷,路俊刚,等.压汞-恒速压汞在致密储层微观孔喉结构定量表征中的应用:以鄂尔多斯盆地华池-合水地区长7储层为例[J].石油实验地质,2015,37(6):789-795. Yu Jian,Ma Jie,Lu Jungang,et al.Application of mercury injection and rate-controlled mercury penetration in quantitative characterization of microscopic pore structure of tight reservoirs:A case study of the Chang7 reservoir in Huachi-Heshui area,the Ordos Basin[J].Petroleum Geology & Experiment,2015,37(6):789-795.
    [12]
    王震亮.致密岩油的研究进展、存在问题和发展趋势[J].石油实验地质,2013,35(6):587-595. Wang Zhenliang.Research progress,existing problem and deve-lopment trend of tight rock oil[J].Petroleum Geology & Experiment,2013,35(6):587-595.
    [13]
    Guo Xuejing,Shen Yinghao,He Shunli.Quantitative pore chara-cterization and the relationship between pore distributions and organic matter in shale based on Nano-CT image analysis:A case study for a lacustrine shale reservoir in the Triassic Chang 7 member,Ordos Basin,China[J].Journal of Natural Gas Science and Engineering,2015,27:1630-1640.
    [14]
    白斌,朱如凯,吴松涛,等.利用多尺度CT成像表征致密砂岩微观孔喉结构[J].石油勘探与开发,2013,40(3):329-333. Bai Bin,Zhu Rukai,Wu Songtao,et al.Multi-scale method of Nano(Micro)-CT study on microscopic pore structure of tight sandstone of Yanchang Formation,Ordos Basin[J].Petroleum Exploration and Development,2013,40(3):329-333.
    [15]
    赵卫卫,杨云祥,宋和平,等.鄂尔多斯盆地下寺湾地区长7致密油地质特征及成藏主控因素[J].中南大学学报(自然科学版),2014,45(12):4267-4276. Zhao Weiwei,Yang Yunxiang,Song Heping,et al.Geological characteristics and main controlling factors of hydrocarbon accumulation in Chang 7 tight oil of Yanchang Formation of Xiasiwan area,Ordos Basin[J].Journal of Central South University(Science and Technology),2014,45(12):4267-4276.
    [16]
    屈红军,蒲仁海,曹金舟,等.鄂尔多斯盆地南部地区长7致密油储层特征[J].非常规油气,2015,2(1):1-9. Qu Hongjun,Pu Renhai,Cao Jinzhou,et al.Characteristics of Chang 7 tight oil reservoir in the southern Ordos Basin[J].Unconventional Oil & Gas,2015,2(1):1-9.
    [17]
    吴浩,牛小兵,张春林,等.鄂尔多斯盆地陇东地区长7段致密油储层可动流体赋存特征及影响因素[J].地质科技情报,2015,34(3):120-125. Wu Hao,Niu Xiaobing,Zhang Chunlin,et al.Characteristics and influencing factors of movable fluid in Chang 7 tight oil reservoir in Longdong area,Ordos Basin[J].Geological Science and Technology Information,2015,34(3):120-125.
    [18]
    赵靖舟,白玉彬,曹青,等.鄂尔多斯盆地准连续型低渗透-致密砂岩大油田成藏模式[J].石油与天然气地质,2012,33(6):811-827. Zhao Jingzhou,Bai Yubin,Cao Qing,et al.Quasi-continuous hydrocarbon accumulation:A new pattern for large tight sand oilfields in the Ordos Basin[J].Oil & Gas Geology,2012,33(6):811-827.
    [19]
    朱如凯,白斌,崔景伟,等.非常规油气致密储集层微观结构研究进展[J].古地理学报,2013,15(5):615-623. Zhu Rukai,Bai Bin,Cui Jingwei,et al.Research advances of microstructure in unconventional tight oil and gas reservoirs[J].Journal of Palaeogeography,2013,15(5):615-623.
    [20]
    杜金虎,何海清,杨涛,等.中国致密油勘探进展及面临的挑战[J].中国石油勘探,2014,19(1):1-9. Du Jinhu,He Haiqing,Yang Tao,et al.Progress in China's tight oil exploration and challenges[J].China Petroleum Exploration,2014,19(1):1-9.
    [21]
    屈乐,孙卫,杜环虹,等.基于CT扫描的三维数字岩心孔隙结构表征方法及应用:以莫北油田116井区三工河组为例[J].现代地质,2014,28(1):190-196. Qu Le,Sun Wei,Du Huanhong,et al.Characterization technique of pore structure by 3D digital core based on CT scanning and its application:An example from Sangonghe Formation of 116 well field in Mobei Oilfield[J].Geoscience,2014,28(1):190-196.
    [22]
    李传亮.孔喉比对地层渗透率的影响[J].油气地质与采收率,2007,14(5):78-79. Li Chuanliang.Effect of pore-throat ratio on reservoir permeability[J].Petroleum Geology and Recovery Efficiency,2007,14(5):78-79.
    [23]
    高辉,孙卫.特低渗砂岩储层微观孔喉特征的定量表征[J].地质科技情报,2010,29(4):67-7. Gao Hui,Sun Wei.Quantitative characterization of micro-pore throat characteristics in ultra-low permeability sandstone reservoir[J].Geological Science and Technology Information,2010,29(4):67-7.
    [24]
    高辉,敬晓锋,张兰.不同孔喉匹配关系下的特低渗透砂岩微观孔喉特征差异[J].石油实验地质,2013,35(4):401-406. Gao Hui,Jing Xiaofeng,Zhang Lan.Difference of micro-pore throat characteristics in extra-low permeability sandstone of different pore throat matching relationship[J].Petroleum Geology & Experiment,2013,35(4):401-406.
    • 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 (1033) PDF downloads(360) 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