CUI Weilan, HAN Huafeng, ZHANG Yong, BAI Yubin. Microscopic characteristics and oil content of Chang 6 tight sandstone reservoirs in Lijiachengze area, Jingbian Oil Field, Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2019, 41(3): 390-397. doi: 10.11781/sysydz201903390
Citation: CUI Weilan, HAN Huafeng, ZHANG Yong, BAI Yubin. Microscopic characteristics and oil content of Chang 6 tight sandstone reservoirs in Lijiachengze area, Jingbian Oil Field, Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2019, 41(3): 390-397. doi: 10.11781/sysydz201903390

Microscopic characteristics and oil content of Chang 6 tight sandstone reservoirs in Lijiachengze area, Jingbian Oil Field, Ordos Basin

doi: 10.11781/sysydz201903390
  • Received Date: 2018-08-24
  • Rev Recd Date: 2019-03-23
  • Publish Date: 2019-05-28
  • The microscopic characteristics and oil-bearing properties of the Chang 6 tight sandstones in Lijiachengze area of the Jingbian Oilfield were studied using the analysis and test data of cast thin sections, thin section fluorescence, scanning electron microscopy, pressure-controlled porosimetry (PCP) and rate-controlled mercury porosimetry (RCP). The results show that the rock type of the Chang 6 sandstone reservoir is fine feldspar sandstone, and the main composition is calcite, chlorite and turbidite. The pore type is varied, mainly with residual intergranular pores and various dissolution pores, and the average pore diameter is mainly distributed at 20-50 μm. The reservoir porosity and permeability are poor. Micro-cracks are locally developed, and pore structure is very complex. Combined PCP and RCP indicate pore throat radius extends from nanometers to micrometers, but there are mainly two peaks, and the pore radius is mainly smaller than 2 μm. The oil content of Chang 6 sandstones is poor, mainly with oil spot grade, and oil is mainly distributed in the residual intergranular pores and dissolution pores. For the oil-bearing sandstones with industrial oil flow wells, the lower limits of porosity, permeability and pore throat radius are 7.5%, 0.15×10-3 μm2 and 0.1 μm, respectively.

     

  • loading
  • [1]
    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.
    [2]
    白玉彬,赵靖舟,方朝强,等.鄂尔多斯盆地长6油层组准连续型致密砂岩油藏形成机理[J].石油实验地质,2013,35(1):65-71.

    BAI Yubin,ZHAO Jingzhou,FANG Chaoqiang,et al.Forming mechanism of quasi-continuous tight sandstone reservoir of Chang 6 oil-bearing formation,Ordos Basin[J].Petroleum Geology & Experiment,2013,35(1):65-71.
    [3]
    国家能源局.SY/T 6943-2013,致密油地质评价方法[S].北京:石油工业出版社,2014. National Energy Administration.SY/T 6943-2013,Geological evaluating methods for tight oil[S].Beijing:Petroleum Industry Press,2014.
    [4]
    白玉彬,赵靖舟,叶小闯.致密油藏与常规油藏物性界限研究方法探讨及其应用[J].西安石油大学学报(自然科学版),2017,32(4):32-38. BAI Yubin,ZHAO Jingzhou,YE Xiaochuang.Discussion and application of research method of physical property limits of tight oil reservoir and conventional reservoir[J].Journal of Xi'an Shiyou University (Natural Science Edition),2017,32(4):32-38.
    [5]
    白玉彬.鄂尔多斯盆地长7致密油成藏机理与富集规律[M].北京:石油工业出版社,2014. BAI Yubin.Formation mechanism and enrichment law of Chang 7 tight oil in Ordos Basin[M].Beijing:Petroleum Industry Press,2014.
    [6]
    赵靖舟,曹青,白玉彬,等.油气藏形成与分布:从连续到不连续:兼论油气藏概念及分类[J].石油学报,2016,37(2):145-159.

    ZHAO Jingzhou,CAO Qing,BAI Yubin,et al.Petroleum accumulation from continuous to discontinuous:concept,classification and distribution[J].Acta Petrolei Sinica,2016,37(2):145-159.
    [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):13-26.

    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):13-26
    [8]
    朱如凯,吴松涛,苏玲,等.中国致密储层孔隙结构表征需注意的问题及未来发展方向[J].石油学报,2016,37(11):1323-1336.

    ZHU Rukai,WU Songtao,SU Ling,et al.Problems and future works of porous texture characterization of tight reservoirs in China[J].Acta Petrolei Sinica,2016,37(11):1323-1336.
    [9]
    LI Peng,ZHENG Min,BI He,et al.Pore throat structure and fractal characteristics of tight oil sandstone:a case study in the Ordos Basin,China[J].Journal of Petroleum Science and Engineering,2017,149:665-674.
    [10]
    曾溅辉,杨智峰,冯枭,等.致密储层油气成藏机理研究现状及其关键科学问题[J].地球科学进展,2014,29(6):651-661.

    ZENG Jianhui,YANG Zhifeng,FENG Xiao,et al.Study status and key scientific issue of tight reservoir oil and gas accumulation mechanism[J].Advances in Earth Science,2014,29(6):651-661.
    [11]
    高辉,解伟,杨建鹏,等.基于恒速压汞技术的特低-超低渗砂岩储层微观孔喉特征[J].石油实验地质,2011,33(2):206-211.

    GAO Hui,XIE Wei,YANG Jianpeng,et al.Pore throat characteristics of extra-ultra low permeability sandstone reservoir based on constant-rate mercury penetration technique[J].Petroleum Geology & Experiment,2011,33(2):206-211.
    [12]
    李卫成,张艳梅,王芳,等.应用恒速压汞技术研究致密油储层微观孔喉特征:以鄂尔多斯盆地上三叠统延长组为例[J].岩性油气藏,2012,24(6):60-65.

    LI Weicheng,ZHANG Yanmei,WANG Fang,et al.Application of constant-rate mercury penetration technique to study of pore throat characteristics of tight reservoir:a case study from the Upper Triassic Yanchang Formation in Ordos Basin[J].Litho-logic Reservoirs,2012,24(6):60-65.
    [13]
    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.
    [14]
    肖佃师,卢双舫,陆正元,等.联合核磁共振和恒速压汞方法测定致密砂岩孔喉结构[J].石油勘探与开发,2016,43(6):961-970.

    XIAO Dianshi,LU Shuangfang,LU Zhengyuan,et al.Combining nuclear magnetic resonance and rate-controlled porosimetry to probe the pore-throat structure of tight sandstones[J].Petroleum Exploration and Development,2016,43(6):961-970.
    [15]
    欧阳思琪,孙卫,黄何鑫.多方法协同表征特低渗砂岩储层全孔径孔隙结构:以鄂尔多斯盆地合水地区砂岩储层为例[J].石油实验地质,2018,40(4):595-604.

    OUYANG Siqi,SUN Wei,HUANG Hexin.Multi-method synergistic characterization of total pore structure of extra-low permeability sandstone reservoirs:case study of the Heshui area of Ordos Basin[J].Petroleum Geology & Experiment,2018,40(4):595-604.
    [16]
    宋磊,宁正福,孙一丹,等.联合压汞法表征致密油储层孔隙结构[J].石油实验地质,2017,39(5):700-705.

    SONG Lei,NING Zhengfu,SUN Yidan,et al.Pore structure characterization of tight oil reservoirs by a combined mercury method[J].Petroleum Geology & Experiment,2017,39(5):700-705.
    [17]
    李德生.重新认识鄂尔多斯盆地油气地质学[J].石油勘探与开发,2004,31(6):1-7.

    LI Desheng.Return to petroleum geology of Ordos Basin[J].Petroleum Exploration and Development,2004,31(6):1-7.
    [18]
    刘池洋,赵红格,桂小军,等.鄂尔多斯盆地演化-改造的时空坐标及其成藏(矿)响应[J].地质学报,2006,80(5):617-638.

    LIU Chiyang,ZHAO Hongge,GUI Xiaojun,et al.Space-time coordinate of the evolution and reformation and mineralization response in Ordos Basin[J].Acta Geologica Sinica,2006,80(5):617-638.
    [19]
    李文厚,庞军刚,曹红霞,等.鄂尔多斯盆地晚三叠世延长期沉积体系及岩相古地理演化[J].西北大学学报(自然科学版),2009,39(3):501-506. LI Wenhou,PANG Jungang,CAO Hongxia,et al.Depositional system and paleogeographic evolution of the Late Triassic Yanchang stage in Ordos Basin[J].Journal of Northwest University (Natural Science Edition),2009,39(3):501-506.
    [20]
    牟炜卫,李树同,闫灿灿.鄂尔多斯盆地姬塬西部地区长6致密油储层砂体成因模式[J].特种油气藏,2017,24(2):6-11.

    MOU Weiwei,LI Shutong,YAN Cancan.Genesis Model of Sandbodies in Chang6 tight oil reservoirs in the western area of Jiyuan,the Ordos Basin[J].Special Oil & Gas Reservoirs,2017,24(2):6-11.
    [21]
    杨俊杰,李克勤.中国石油地质志(卷12)[M].北京:石油工业出版社,1992:48-51. YANG Junjie,LI Keqin.Petroleum geology of China vol.12[M].Beijing:Petroleum Industry Press,1992:48-51.
    [22]
    何自新.鄂尔多斯盆地演化与油气[M].北京:石油工业出版社,2003:1-75. HE Zixin.Forming stages and evolution history of the Ordos Basin[M].Beijing:Petroleum Industry Press,2003:1-75.
    [23]
    赵靖舟.非常规油气有关概念、分类及资源潜力[J].天然气地球科学,2012,23(3):393-406.

    ZHAO Jingzhou.Conception,classification and resource potential of unconventional hydrocarbons[J].Natural Gas Geoscience,2012,23(3):393-406.
    [24]
    白玉彬,赵靖舟,赵子龙,等.鄂尔多斯盆地志丹地区延长组长7致密油成藏条件与成藏特征[J].石油与天然气地质,2013,34(5):631-639.

    BAI Yubin,ZHAO Jingzhou,ZHAO Zilong,et al.Accumulation conditions and characteristics of the Chang 7 tight oil reservoir of the Yanchang Formation in Zhidan area,Ordos Basin[J].Oil & Gas Geology,2013,34(5):631-639.
    [25]
    罗静兰,罗晓容,白玉彬,等.差异性成岩演化过程对储层致密化时序与孔隙演化的影响:以鄂尔多斯盆地西南部长7致密浊积砂岩储层为例[J].地球科学与环境学报,2016,38(1):79-92.

    LUO JingLan,LUO Xiaorong,BAI Yubin,et al.Impact of differen-tial diagenetic evolution on the chronological tightening and pore evolution of tight sandstone reservoirs:a case study from the Chang-7 tight turbidite sandstone reservoir in the southwestern Ordos Basin[J].Journal of Earth Sciences and Environment,2016,38(1):79-92.
    [26]
    谢庆邦,贺静.陕甘宁盆地南部延长组低渗砂岩储层评价[J].天然气工业,1994,14(3):16-19.

    XIE Qingbang,HE Jing.Reservior evaluation on low permeability sandstone of Yanchang Formation in south part of Shanganning Basin[J].Natural Gas Industry,1994,14(3):16-19.
    [27]
    PITTMAN E D.Relationship of porosity and permeability to various parameters derived from mercury injection-capillary pressure curves for sandstone[J].AAPG Bulletin,1992,76(2):191-198.
    [28]
    ROMANENKO K,BALCOM B J.An assessment of non-wetting phase relative permeability in water-wet sandstones based on quantitative MRI of capillary end effects[J].Journal of Petro-leum Science and Engineering,2013,110:225-231.
    [29]
    何顺利,焦春艳,王建国,等.恒速压汞与常规压汞的异同[J].断块油气田,2011,18(2):235-237.

    HE Shunli,JIAO Chunyan,WANG Jianguo,et al.Discussion on the differences between constant-speed mercury injection and conventional mercury injection techniques[J].Fault-Block Oil & Gas Field,2011,18(2):235-237.
    [30]
    赵华伟,宁正福,赵天逸,等.恒速压汞法在致密储层孔隙结构表征中的适用性[J].断块油气田,2017,24(3):413-416.

    ZHAO Huawei,NING Zhengfu,ZHAO Tianyi,et al.Applicability of rate-controlled porosimetry experiment to pore structure characterization of tight oil reservoirs[J].Fault-Block Oil and Gas Field,2017,24(3):413-416.
    [31]
    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.
    [32]
    王瑞飞,孙卫.鄂尔多斯盆地姬塬油田上三叠统延长组超低渗透砂岩储层微裂缝研究[J].地质论评,2009,55(3):444-448.

    WANG Ruifei,SUN Wei.A Study on micro cracks in super-low permeability sandstone reservoir of the Upper Triassic Yanchang Formation in the Ordos Basin[J].Geological Review,2009,55(3):444-448.
  • 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

    Article Metrics

    Article views (916) PDF downloads(110) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return