Volume 22 Issue 1
Mar.  2016
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MIAO Feng-bin, ZENG Lian-bo, ZU Ke-wei, et al., 2016. CHARACTERISTICS AND CONTROLLING FACTORS OF FRACTURES IN RESERVOIRS OF XUJIAHE FORMATION IN ZITONG AREA, SICHUAN BASIN. Journal of Geomechanics, 22 (1): 76-84.
Citation: MIAO Feng-bin, ZENG Lian-bo, ZU Ke-wei, et al., 2016. CHARACTERISTICS AND CONTROLLING FACTORS OF FRACTURES IN RESERVOIRS OF XUJIAHE FORMATION IN ZITONG AREA, SICHUAN BASIN. Journal of Geomechanics, 22 (1): 76-84.

CHARACTERISTICS AND CONTROLLING FACTORS OF FRACTURES IN RESERVOIRS OF XUJIAHE FORMATION IN ZITONG AREA, SICHUAN BASIN

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  • Received: 2015-09-26
  • Published: 2016-03-01
  • Based on the data of outcrops, cores, thin sections and experimental analysis, the development characteristics and controlling factors of fractures in tight sandstone reservoirs of Xujiahe Formation in Zitong Area, Sichuan Basin were analysed and interpreted. There are three types of fractures, i.e. tectonic fractures, diagenetic fractures and fractures related to abnormal high pressure of fluid in the tight sandstone reservoirs. Among them, the tectonic fractures are the main part. There are main three sets fractures of nearly EW, nearly SN and NW-SE orientations. The fractures in study area have an average density of 0.56/m and are mostly confined within the single layer. In the plane, fractures density decreases along the Lao Guanmiao-Wen Xingchang-Zhe Bachang area. While, the fractures of T3x4 are most developed. The proportion of effective fracture is the lowest around the Lao Guanmiao area and increases along the direction of NW to Zhe Bachang area. The distribution of these fractures in study area were controlled by such factors as the lithology, layer thickness, structures and abnormal high pressure of fluid. Sandstone with fine particle and thin layer are favorable for fractures development. Where near the faults and the high part of the structure also are the favorable areas for tectonic fractures development. The control action of faults on the forming and distribution of fractures plays a dominant role. Moreover, the abnormal high pressure of fluid is beneficial to the development of fractures, especially for the extension fractures, the fractures density in abnormal high pressure belts increases significantly. The abnormal high pressure also causes some fractures which were closed in early stage to open and plays important roles in increasing the extent of mineral filling and corrosion increases of fractures.

     

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  • [1]
    兰大樵, 张豫, 戴鸿鸣.川西北地区上三叠统油气勘探方向[J].天然气工业, 2005, 25(11):4~6. doi: 10.3321/j.issn:1000-0976.2005.11.002

    LAN Da-qiao, ZHANG Yu, DAI Hong-ming. Reservoiring conditions and exploratory targets of Upper Triassic Series in northwest Sichuan Basin area[J]. Natural Gas Industry, 2005, 25(11): 4~6. doi: 10.3321/j.issn:1000-0976.2005.11.002
    [2]
    杨克明.川西坳陷须家河组天然气成藏模式探讨[J].石油与天然气地质, 2006, 27(6):786~793. doi: 10.11743/ogg20060609

    YANG Ke-ming. Gas reservoiring mode in Xujiahe Formation of western Sichuan depression[J]. Oil & Gas Geology, 2006, 27(6):786~793. doi: 10.11743/ogg20060609
    [3]
    戴朝成, 郑荣才, 朱如凯, 等.四川类前陆盆地中西部须家河组储层特征[J].天然气地球科学, 2011, 22(1):47~55. http://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201101009.htm

    DAI Chao-cheng, ZHENG Rong-cai, ZHU Ru-kai, et al. Reservoir characteristics of Xujiahe Formation in Central West Sichuan Analogous Foreland Basin[J]. Natural Gas Geoscience, 2011, 22(1):47~55. http://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201101009.htm
    [4]
    裴森奇, 李跃纲, 张本健, 等.川西地区上三叠统天然气成藏主控因素及勘探方向[J].天然气工业, 2012, 32(10):6~13. doi: 10.3787/j.issn.1000-0976.2012.10.002

    PEI Sen-qi, LI Yue-gang, ZHANG Ben-jian, et al. Major controlling factors of gas pooling and exploration directions in the Upper Triassic in the western Sichuan Basin[J]. Natural Gas Industry, 2012, 32(10):6~13. doi: 10.3787/j.issn.1000-0976.2012.10.002
    [5]
    邱宗湉, 何鹏.九龙山气田须二气藏工业气井的控制因素分析[J].天然气工业, 1990, 10(4):7~10. http://www.cnki.com.cn/Article/CJFDTOTAL-TRQG199004001.htm

    QIU Zong-tian, HE Peng. Analysis of the Controlling Factors of the Commercial Gas Wells in Xu-2Reservoir in Jiulongshan Gas Field[J]. Natural Gas Industry, 1990, 10(4):7~10. http://www.cnki.com.cn/Article/CJFDTOTAL-TRQG199004001.htm
    [6]
    罗文军, 彭军, 杜敬安, 等.川西坳陷须家河组二段致密砂岩储层成岩作用与孔隙演化[J].石油与天然气地质, 2012, 33(2):287~295. doi: 10.11743/ogg20120215

    LUO Wen-jun, PENG Jun, DU Jing-an, et al. Diagenesis and porosity evolution of tight sand reservoirs in the 2nd member of Xujiahe Formation, western Sichuan Depression[J]. Oil & Gas Geology, 2012, 33(2):287~295. doi: 10.11743/ogg20120215
    [7]
    曾联波.低渗透砂岩储层裂缝的形成与分布[M].北京:科学出版社, 2008.

    ZENG Lian-bo. Formation and distribution of fractures in low-permeability sandstone reservoirs[M]. Beijing: Science Press, 2008.
    [8]
    张闻林, 何颐婷, 文龙, 等.川西北地区上三叠统异常高压探讨[J].天然气勘探与开发, 2002, 25(2):7~12. http://www.cnki.com.cn/Article/CJFDTOTAL-TRKT200202002.htm

    ZHANG Wen-lin, HE Yi-ting, WEN Long, et al. Research on the abnormal high pressures in upper Triassic in NorthWestern Sichuan Basin[J]. Natural Gas Exploration and Development, 2002, 25(2):7~12. http://www.cnki.com.cn/Article/CJFDTOTAL-TRKT200202002.htm
    [9]
    刘埃平, 文龙, 张闻林, 等.川西前陆盆地上三叠统异常高压的分布特征及形成机制研究[J].天然气勘探与开发, 2004, 27(4):3~8. http://www.cnki.com.cn/Article/CJFDTOTAL-TRKT200404001.htm

    LIU Ai-ping, WEN Long, ZHANG Wen-lin, et al. Distributive characteristic and forming mechanism of abnormally high pressures in upper Triassic of West Sichuan foreland basin[J]. Natural Gas Exploration and Development, 2004, 27(4):3~8. http://www.cnki.com.cn/Article/CJFDTOTAL-TRKT200404001.htm
    [10]
    王震亮, 孙明亮, 张立宽, 等.川西地区须家河组异常压力演化与天然气成藏模式[J].地质科学, 2004, 29(4):433~439. http://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200404008.htm

    WANG Zhen-liang, SUN Ming-liang, ZHANG Li-kuan, et al. Evolution of abnormal pressure and model of gas accumulation in Xujiahe Formation, Western Sichuan Basin[J]. Earth Science, 2004, 29(4):433~439. http://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200404008.htm
    [11]
    罗啸泉, 宋进.川西地区须家河组异常高压分布与油气富集[J].中国西部油气地质, 2007, 3(1):35~40. http://www.cnki.com.cn/Article/CJFDTOTAL-XBYD200701007.htm

    LUO Xiao-quan, SONG Jin. Distribution characteristics of abnormal high pressure of Xujiahe Formation in the Western Sichuan[J]. West China Petroleum Geosciences, 2007, 3(1):35~40. http://www.cnki.com.cn/Article/CJFDTOTAL-XBYD200701007.htm
    [12]
    Cooke M L. Fracture termination and step-over at bedding interfaces due to frictional slip and interface opening[J].Journal of Structural Geology, 2001, 23(2/3):223~238.
    [13]
    曾联波, 漆家福, 王永秀.低渗透储层构造裂缝的成因类型及其形成地质条件[J].石油学报, 2007, 28(4):52~56. doi: 10.7623/syxb200704010

    ZENG Lian-bo, QI Jia-fu, WANG Yong-xiu. Origin type of tectonic fractures and geological conditions in low-permeability reservoirs[J]. Acta Petrolei Sinica, 2007, 28(4):52~56. doi: 10.7623/syxb200704010
    [14]
    周新桂, 张林炎, 屈雪峰, 等.沿河湾探区低渗透储层构造裂缝特征及分布规律定量预测[J].石油学报, 2009, 30(2):195~200. doi: 10.7623/syxb200902006

    ZHOU Xin-gui, ZHANG Lin-yan, QU Xue-feng, et al. Characteristics and quantitative prediction of distribution laws of tectonic fractures of low-permeability reservoirs in Yanhewan area[J]. Acta Petrolei Sinica, 2009, 30(2):195~200. doi: 10.7623/syxb200902006
    [15]
    GROSHONG R H. Forced folds and fractures: geological society special publication[J]. Tectonophysics.2001, 334(5):57~59.
    [16]
    曾联波, 李跃纲, 张贵斌, 等.川西南部上三叠统须二段低渗透砂岩储层裂缝分布的控制因素[J].中国地质, 2007, 34(4):622~627. http://www.cnki.com.cn/Article/CJFDTOTAL-DIZI200704011.htm

    ZENG Lian-bo, LI Yue-gang, ZHANG Gui-bin, el at. Controlling factors for fracture distribution in the low-permeability sandstone reservoir of the Second Member of the Upper Triassic Xujiahe Formation in the south of western Sichuan[J]. Geology in China, 2007, 34(4):622~627. http://www.cnki.com.cn/Article/CJFDTOTAL-DIZI200704011.htm
    [17]
    刘树根, 何鹏, 邓荣贵, 等.川西九龙山构造须二段岩石力学性质与裂缝发育规律研究[J].天然气工业, 1996, 16(2):1~4. http://www.cnki.com.cn/Article/CJFDTOTAL-TRQG199602003.htm

    LIU Shu-gen, HE Peng, DENG, Rong-gui, et al. Rock mechanics and fracture distribution of Xu2 Member in Jiulongshan structure of western Sichuan basin[J]. Natural Gas Industry, 1996, 16(2):1~4. http://www.cnki.com.cn/Article/CJFDTOTAL-TRQG199602003.htm
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