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Volume 42 Issue 4
Jul.  2020
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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2020  >  42(4): 604-611
WANG Ran, CHANG Qiusheng, QIAN Yongxin, LIU Guoliang, WAN Min, HUANG Liliang. Reservoir characteristics and genesis of shale oil 'sweet spots' in Lucaogou Formation, Jimsar Sag, Junggar Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2020, 42(4): 604-611. doi: 10.11781/sysydz202004604
Citation: WANG Ran, CHANG Qiusheng, QIAN Yongxin, LIU Guoliang, WAN Min, HUANG Liliang. Reservoir characteristics and genesis of shale oil "sweet spots" in Lucaogou Formation, Jimsar Sag, Junggar Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2020, 42(4): 604-611. doi: 10.11781/sysydz202004604
shu

Reservoir characteristics and genesis of shale oil "sweet spots" in Lucaogou Formation, Jimsar Sag, Junggar Basin

doi: 10.11781/sysydz202004604

  • Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China

  • Received Date: 2020-04-03
  • Rev Recd Date: 2020-06-19
  • Publish Date: 2020-07-28
    Abstract
  • The shale oil layers of the Lucaogou Formation in the Jimsar Sag of Junggar Basin have complex lithology and strong heterogeneity. The formation of "sweet spots" is a key problem restricting exploration and development. Through core observation, thin section analysis and oil-bearing capacity analysis, the geological features of the "sweet spots" were characterized, the geological factors affecting productivity were analyzed, and the formation mechanism of movable oil pores was determined. The lithology of "sweet spots" of the Lucaogou Formation in the Jimsar Sag is mainly lithic feldspar fine sandstone, dolomitic sandstone and gypsum dolomite, with a porosity of 5.75%-11.9% and a permeability of (0.02-1.26)×10-3 μm2, of which the lithic feldspar fine sandstone made the largest contribution to pore throats. Intergranular (intragranular) pores and fractures provide storage space for "sweet spots". Shale oil yield is controlled by the pore distribution for movable oil and the contents of argillaceous, quartz and dolomite. The movable oil pores are formed under the combined action of syngenetic and quasi-syngenetic leaching and acid fluid burial dissolution. The key factor to control permeability is the connection of dissolved pores by bedding cracks. In the process of reservoir diagenesis, the coupling of hydrocarbon generation and expulsion in the reservoir space will eventually form a "sweet spot", mainly in environments such as dolomitic flat, mixed flat, lakeside beach sand and carbonate shoal which are strongly influenced by waves. This discovery can provide guidance for the exploration and development of shale oil of the same genetic type.

     

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    • References(24)
  • [1]
    赵文智, 胡素云, 侯连华, 等. 中国陆相页岩油类型、资源潜力及与致密油的边界[J]. 石油勘探与开发, 2020, 47(1): 1-10. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK202001002.htm

    ZHAO Wenzhi, HU Suyun, HOU Lianhua, et al. Types and resource potential of continental shale oil in China and its boundary with tight oil[J]. Petroleum Exploration and Development, 2020, 47(1): 1-10. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK202001002.htm
    [2]
    王小军, 杨智峰, 郭旭光, 等. 准噶尔盆地吉木萨尔凹陷页岩油勘探实践与展望[J]. 新疆石油地质, 2019, 40(4): 402-413. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201904003.htm

    WANG Xiaojun, YANG Zhifeng, GUO Xuguang, et al. Practices and prospects of shale oil exploration in Jimsar Sag of Junggar Basin[J]. Xinjiang Petroleum Geology, 2019, 40(4): 402-413. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201904003.htm
    [3]
    邵雨, 杨勇强, 万敏, 等. 吉木萨尔凹陷二叠系芦草沟组沉积特征及沉积相演化[J]. 新疆石油地质, 2015, 36(6): 635-641. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201506003.htm

    SHAO Yu, YANG Yongqiang, WAN Min, et al. Sedimentary characteristic and facies evolution of Permian Lucaogou Formation in Jimsar Sag, Junggar Basin[J]. Xinjiang Petroleum Geo-logy, 2015, 36(6): 635-641. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201506003.htm
    [4]
    BAI Hua, PANG Xiongqi, KUANG Lichun, et al. Hydrocarbon expulsion potential of source rocks and its influence on the distribution of lacustrine tight oil reservoir, Middle Permian Lucaogou Formation, Jimsar Sag, Junggar Basin, Northwest China[J]. Journal of Petroleum Science and Engineering, 2017, 149: 740-755. doi: 10.1016/j.petrol.2016.09.053
    [5]
    GAO Gang, ZHANG Weiwei, XIANG Baoli, et al. Geochemistry characteristics and hydrocarbon-generating potential of lacustrine source rock in Lucaogou Formation of the Jimusaer Sag, Junggar Basin[J]. Journal of Petroleum Science and Engineering, 2016, 145: 168-182. doi: 10.1016/j.petrol.2016.03.023
    [6]
    CAO Zhe, LIU Guangdi, ZHAN Hongbin, et al. Geological control factors of micro oil distribution in tight reservoirs[J]. Marine and Petroleum Geology, 2016, 77: 1193-1205. doi: 10.1016/j.marpetgeo.2016.08.013
    [7]
    HU Tao, PANG Xiongqi, WANG Xulong, et al. Source rock characteristics of Permian Lucaogou Formation in the Jimusar Sag, Junggar Basin, northwest China, and its significance on tight oil source and occurrence[J]. Geological Journal, 2017, 52(4): 624-645. doi: 10.1002/gj.2818
    [8]
    JIANG Yiqin, LIU Yiqun, YANG Zhao, et al. Characteristics and origin of tuff-type tight oil in Jimusaer Sag, Junggar Basin, NW China[J]. Petroleum Exploration and Development, 2015, 42(6): 810-818. doi: 10.1016/S1876-3804(15)30077-X
    [9]
    杨智, 侯连华, 林森虎, 等. 吉木萨尔凹陷芦草沟组致密油、页岩油地质特征与勘探潜力[J]. 中国石油勘探, 2018, 23(4): 76-85. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201804010.htm

    YANG Zhi, HOU Lianhua, LIN Senhu, et al. Geologic characte-ristics and exploration potential of tight oil and shale oil in Lucaogou Formation in Jimsar Sag[J]. China Petroleum Exploration, 2018, 23(4): 76-85. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201804010.htm
    [10]
    支东明, 唐勇, 杨智峰, 等. 准噶尔盆地吉木萨尔凹陷陆相页岩油地质特征与聚集机理[J]. 石油与天然气地质, 2019, 40(3): 524-534. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201903009.htm

    ZHI Dongming, TANG Yong, YANG Zhifeng, et al. Geological characteristics and accumulation mechanism of continental shale oil in Jimusaer Sag, Junggar Basin[J]. Oil & Gas Geology, 2019, 40(3): 524-534. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201903009.htm
    [11]
    田伟, 刘慧卿, 何顺利, 等. 吉木萨尔凹陷芦草沟组致密油储层岩石微观孔隙结构表征[J]. 油气地质与采收率, 2019, 26(4): 24-32. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS201904005.htm

    TIAN Wei, LIU Huiqing, HE Shunli, et al. Characterization of microscopic pore structure of tight oil reservoirs in Lucaogou Formation, Jimusaer Sag[J]. Petroleum Geology and Recovery Efficiency, 2019, 26(4): 24-32. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS201904005.htm
    [12]
    曲长胜, 邱隆伟, 操应长, 等. 吉木萨尔凹陷二叠系芦草沟组烃源岩有机岩石学特征及其赋存状态[J]. 中国石油大学学报(自然科学版), 2017, 41(2): 30-38. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDX201702004.htm

    QU Changsheng, QIU Longwei, CAO Yingchang, et al. Organic petrology characteristics and occurrence of source rocks in Permian Lucaogou Formation, Jimsar Sag[J]. Journal of China University of Petroleum, 2017, 41(2): 30-38. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDX201702004.htm
    [13]
    葸克来, 操应长, 朱如凯, 等. 吉木萨尔凹陷二叠系芦草沟组致密油储层岩石类型及特征[J]. 石油学报, 2015, 36(12): 1495-1507. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201512005.htm

    XI Kelai, CAO Yingchang, ZHU Rukai, et al. Rock types and characteristics of tight oil reservoir in Permian Lucaogou Formation, Jimsar Sag[J]. Acta Petrolei Sinica, 2015, 36(12): 1495-1507. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201512005.htm
    [14]
    郭旭光, 何文军, 杨森, 等. 准噶尔盆地页岩油"甜点区"评价与关键技术应用: 以吉木萨尔凹陷二叠系芦草沟组为例[J]. 天然气地球科学, 2019, 30(8): 1168-1179. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201908010.htm

    GUO Xuguang, HE Wenjun, YANG Sen, et al. Evaluation and application of key technologies of "sweet area" of shale oil in Junggar Basin: case study of Permian Lucaogou Formation in Jimusar Depression[J]. Natural Gas Geoscience, 2019, 30(8): 1168-1179. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201908010.htm
    [15]
    张少敏, 操应长, 朱如凯, 等. 湖相细粒混合沉积岩岩石类型划分: 以准噶尔盆地吉木萨尔凹陷二叠系芦草沟组为例[J]. 地学前缘, 2018, 25(4): 198-209. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201804020.htm

    ZHANG Shaomin, CAO Yingchang, ZHU Rukai, et al. Lithofacies classification of fine-grained mixed sedimentary rocks in the Permian Lucaogou Formation, Jimusar Sag, Junggar Basin[J]. Earth Science Frontiers, 2018, 25(4): 198-209. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201804020.htm
    [16]
    靳军, 杨召, 依力哈木·尔西丁, 等. 准噶尔盆地吉木萨尔凹陷致密油储层纳米孔隙特征及其含油性[J]. 地球科学, 2018, 43(5): 1594-1601. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201805021.htm

    JIN Jun, YANG Zhao, YILIHAMU E, et al. Nanopore characte-ristics and oil-bearing properties of tight oil reservoirs in Jimsar Sag, Junggar Basin[J]. Earth Science, 2018, 43(5): 1594-1601. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201805021.htm
    [17]
    闫林, 冉启全, 高阳, 等. 新疆芦草沟组致密油赋存形式及可动用性评价[J]. 油气藏评价与开发, 2017, 7(6): 20-25. https://www.cnki.com.cn/Article/CJFDTOTAL-KTDQ201706004.htm

    YAN Lin, RAN Qiquan, GAO Yang, et al. Tight oil occurrence form and recoverability evaluation of tight oil reservoir in Lucaogou Formation of Xinjiang[J]. Reservoir Evaluation and Development, 2017, 7(6): 20-25. https://www.cnki.com.cn/Article/CJFDTOTAL-KTDQ201706004.htm
    [18]
    胡英杰. 湖相碳酸盐岩致密油主控因素及"甜点"刻画[J]. 特种油气藏, 2018, 25(6): 6-11. https://www.cnki.com.cn/Article/CJFDTOTAL-TZCZ201806002.htm

    HU Yingjie. Main-controlling factors and "sweet-spot" characte-rization of lacustrine carbonate tight oil reservoir[J]. Special Oil & Gas Reservoirs, 2018, 25(6): 6-11. https://www.cnki.com.cn/Article/CJFDTOTAL-TZCZ201806002.htm
    [19]
    孟祥振, 刘聃, 孟旺才, 等. 鄂尔多斯盆地西南部延长组长7段致密油地质"甜点"评价[J]. 特种油气藏, 2018, 25(6): 90-95. https://www.cnki.com.cn/Article/CJFDTOTAL-TZCZ201806016.htm

    MENG Xiangzhen, LIU Dan, MENG Wangcai, et al. Geological "sweet-spot" evaluation of Chang-7 Member tight oil in the Yanchang Formation of southwestern Ordos Basin[J]. Special Oil & Gas Reservoirs, 2018, 25(6): 90-95. https://www.cnki.com.cn/Article/CJFDTOTAL-TZCZ201806016.htm
    [20]
    许琳, 常秋生, 杨成克, 等. 吉木萨尔凹陷二叠系芦草沟组页岩油储层特征及含油性[J]. 石油与天然气地质, 2019, 40(3): 535-549. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201903010.htm

    XU Lin, CHANG Qiusheng, YANG Chengke, et al. Characteristics and oil-bearing capability of shale oil reservoir in the Permian Lucaogou Formation, Jimusaer Sag[J]. Oil & Gas Geology, 2019, 40(3): 535-549. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201903010.htm
    [21]
    赵海玲, 王成, 刘振文, 等. 火山岩储层斜长石选择性溶蚀的岩石学特征和热力学条件[J]. 地质通报, 2009, 28(4): 412-419. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD200904004.htm

    ZHAO Hailing, WANG Cheng, LIU Zhenwen, et al. Characteristics of petrology and thermodynamics of selective dissolution of plagioclase in volcanic reservoir rocks[J]. Geological Bulletin of China, 2009, 28(4): 412-419. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD200904004.htm
    [22]
    向廷生, 蔡春芳, 付华娥. 不同温度、羧酸溶液中长石溶解模拟实验[J]. 沉积学报, 2004, 22(4): 597-602. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB200404006.htm

    XIANG Tingsheng, CAI Chunfang, FU Huae. Dissolution of microcline by carboxylic acids at different temperatures and complexing reaction of Al anion with carboxylic acid in aqueous solution[J]. Acta Sedimentologica Sinica, 2004, 22(4): 597-602. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB200404006.htm
    [23]
    张云钊, 曾联波, 罗群, 等. 准噶尔盆地吉木萨尔凹陷芦草沟组致密储层裂缝特征和成因机制[J]. 天然气地球科学, 2018, 29(2): 211-225. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201802007.htm

    ZHANG Yunzhao, ZENG Lianbo, LUO Qun, et al. Research on the types and genetic mechanisms of tight reservoir in the Lucaogou Formation in Jimusar Sag, Junggar Basin[J]. Natural Gas Geo-science, 2018, 29(2): 211-225. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201802007.htm
    [24]
    马东正, 张成君, 陶辉飞, 等. 吉木萨尔凹陷芦草沟组沉积环境与物源分析[J]. 科学技术与工程, 2018, 18(23): 26-35. https://www.cnki.com.cn/Article/CJFDTOTAL-KXJS201823005.htm

    MA Dongzheng, ZHANG Chengjun, TAO Huifei, et al. The sedimentary environment and provenance analysis of the Lucaogou Formation in the Jimsar Sag[J]. Science Technology and Engineering, 2018, 18(23): 26-35. https://www.cnki.com.cn/Article/CJFDTOTAL-KXJS201823005.htm
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