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Volume 43 Issue 1
Jan.  2021
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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2021  >  43(1): 56-63
LI Yong, DENG Meizhou, LI Guorong, GAO Hengyi, WANG Qiongxian, HE Sai. Palaeokarst characteristics and effects on reservoirs in the fourth member of Leikoupo Formation, Longmen Mountain front, western Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2021, 43(1): 56-63. doi: 10.11781/sysydz202101056
Citation: LI Yong, DENG Meizhou, LI Guorong, GAO Hengyi, WANG Qiongxian, HE Sai. Palaeokarst characteristics and effects on reservoirs in the fourth member of Leikoupo Formation, Longmen Mountain front, western Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2021, 43(1): 56-63. doi: 10.11781/sysydz202101056
shu

Palaeokarst characteristics and effects on reservoirs in the fourth member of Leikoupo Formation, Longmen Mountain front, western Sichuan Basin

doi: 10.11781/sysydz202101056
  • 1.

    Exploration and Production Research Institute, Southwest Oil and Gas Company, SINOPEC, Chengdu, Sichuan 610041, China

  • 2.

    State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan 610059, China

  • Received Date: 2020-08-20
  • Rev Recd Date: 2021-01-03
  • Publish Date: 2021-01-28
    Abstract
  • Dolostones of tidal flat facies are the major reservoir rock type of the fourth member of Leikoupo Formation, Longmen Mountain front, western Sichuan Basin. The reservoir controls are dominated by phase belt, dolomitization and denudation. Core observation, cast thin section identification, laser carbon and oxygen isotopes, cathode luminescence, electron probe and inclusion thermometry were used to study the denudation effect. This reservoir went through three periods of denudation, including penecontemporaneous period, epidiagenetic period and buried period, which separately formed intragranular and moldic pores, gypsum caves, and fault-line cavities. The studies of karstification and gypsum dissolution in the paleo-epigenetic period showed that, the distinguishing signs of meteoric water impacts in episode I of the Indosinian Movement include the irregular network of weathering cracks, karst and gypsum breccia, de-anointed calcite maintaining gypsum board shape or right-angle edge shape, widely developed paste mold holes and paste-dissolved holes. These products are featured by low carbon and oxygen stable isotope values, a wide range of strontium isotope values, low content of Sr-Mn-Fe-K-Na trace elements, low-temperature single-phase water-soluble inclusions. The dissolution of gypsum in episode I of the Indosinian Movement is the key for reservoir generation.

     

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    • References(16)
  • [1]
    [1]李勇, 段永明, 赵爽, 等. 川西坳陷彭州地区雷四上亚段白云岩形成机理[J]. 沉积与特提斯地质, 2017, 37(3): 13-21. https://www.cnki.com.cn/Article/CJFDTOTAL-TTSD201703002.htm

    LI Yong, DUAN Yongming, ZHAO Shuang, et al. Genetic mechanism of the dolostones from the upper part of the fourth member of the Leikoupo Formation in the Pengzhou region, Western Sichuan Depression[J]. Sedimentary Geology and Tethyan Geology, 2017, 37(3): 13-21. https://www.cnki.com.cn/Article/CJFDTOTAL-TTSD201703002.htm
    [2]
    李书兵, 许国明, 宋晓波. 川西龙门山前构造带彭州雷口坡组大型气田的形成条件[J]. 中国石油勘探, 2016, 21(3): 74-82. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201603007.htm

    LI Shubing, XU Guoming, SONG Xiaobo. Forming conditions of Pengzhou large gas field of Leikoupo Formation in Longmenshan piedmont tectonic belt, western Sichuan Basin[J]. China Petroleum Exploration, 2016, 21(3): 74-82. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201603007.htm
    [3]
    许国明, 宋晓波, 冯霞, 等. 川西地区中三叠统雷口坡组天然气勘探潜力[J]. 天然气工业, 2013, 33(8): 8-14. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201308003.htm

    XU Guoming, SONG Xiaobo, FENG Xia, et al. Gas potential of the Middle Triassic Leikoupo Fm in the western Sichuan Basin[J]. Natural Gas Industry, 2013, 33(8): 8-14. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201308003.htm
    [4]
    王琼仙, 宋晓波, 陈洪德, 等. 川西龙门山前雷口坡组四段白云岩储层胶结物对早期孔隙的影响[J]. 石油实验地质, 2018, 40(6): 757-763. doi: 10.11781/sysydz201806757

    WANG Qiongxian, SONG Xiaobo, CHEN Hongde, et al. Cement characteristics and effects on dolomite reservoir pores in the fourth member of Leikoupo Formation, Longmen Mountain front, western Sichuan Basin[J]. Petroleum Geology & Experiment, 2018, 40(6): 757-763. doi: 10.11781/sysydz201806757
    [5]
    陈昱林, 曾焱, 段永明, 等. 川西龙门山前雷口坡组四段白云岩储层孔隙结构特征及储层分类[J]. 石油实验地质, 2018, 40(5): 621-631. doi: 10.11781/sysydz201805621

    CHEN Yulin, ZENG Yan, DUAN Yongming, et al. Pore structure characteristics and reservoir classification of dolomite reservoirs in fourth member of Leikoupo Formation, Longmen Mountain front, western Sichuan Basin[J]. Petroleum Geology & Experiment, 2018, 40(5): 621-631. doi: 10.11781/sysydz201805621
    [6]
    李凌, 谭秀成, 周素彦, 等. 四川盆地雷口坡组层序岩相古地理[J]. 西南石油大学学报(自然科学版), 2012, 34(4): 13-22. https://www.cnki.com.cn/Article/CJFDTOTAL-XNSY201204003.htm

    LI Ling, TAN Xiucheng, ZHOU Suyan, et al. Sequence lithofacies paleography of Leikoupo Formation, Sichuan Basin[J]. Journal of Southwest Petroleum University (Science & Techno-logy Edition), 2012, 34(4): 13-22. https://www.cnki.com.cn/Article/CJFDTOTAL-XNSY201204003.htm
    [7]
    唐宇. 川西地区雷口坡组沉积与其顶部风化壳储层特征[J]. 石油与天然气地质, 2013, 34(1): 42-47. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201301008.htm

    TANG Yu. Characterization of the sedimentation of the Leikoupo Formation and the weathering crust reservoirs at the top of the formation in the western Sichuan Basin[J]. Oil & Gas Geology, 2013, 34(1): 42-47. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201301008.htm
    [8]
    ALKATTAN M, OELKERS E H, DANDURAND J L, et al. An experimental study of calcite and limestone dissolution rates as a function of pH from 1 to 3 and temperature from 25 to 80℃[J]. Chemical Geology, 1998, 151(1/4): 199-214.
    [9]
    HUERTAS F J, CABALLERO E, DE CISNEROS C J, et al. Kinetics of montmorillonite dissolution in granitic solutions[J]. Applied Geochemistry, 2001, 16(4): 397-407.
    [10]
    朱彤. 四川盆地陆相页岩油气富集主控因素及类型[J]. 石油实验地质, 2020, 42(3): 345-354. doi: 10.11781/sysydz202003345

    ZHU Tong. Main controlling factors and types of continental shale oil and gas enrichment in Sichuan Basin[J]. Petroleum Geology & Experiment, 2020, 42(3): 345-354. doi: 10.11781/sysydz202003345
    [11]
    李宏涛, 胡向阳, 史云清, 等. 四川盆地川西坳陷龙门山前雷口坡组四段气藏层序划分及储层发育控制因素[J]. 石油与天然气地质, 2017, 38(4): 753-763. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201704012.htm

    LI Hongtao, HU Xiangyang, SHI yunqing, et al. Sequence division and controlling factors of reservoir development of the 4th Member of Leikoupo Formation in foreland of Longmen Mountains in the Western Sichuan Depression, Sichuan Basin[J]. Oil & Gas Geo-logy, 2017, 38(4): 753-763. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201704012.htm
    [12]
    宋晓波, 王琼仙, 隆轲, 等. 川西地区中三叠统雷口坡组古岩溶储层特征及发育主控因素[J]. 海相油气地质, 2013, 18(2): 8-14. https://www.cnki.com.cn/Article/CJFDTOTAL-HXYQ201302004.htm

    SONG Xiaobo, WANG Qiongxian, LONG Ke, et al. Characteristics and main controlling factors of Middle Triassic Leikoupo paleokarst reservoirs in western Sichuan Basin[J]. Marine Origin Petroleum Geology, 2013, 18(2): 8-14. https://www.cnki.com.cn/Article/CJFDTOTAL-HXYQ201302004.htm
    [13]
    李素华, 卢齐军, 许国明, 等. 川西XC地区雷口坡组顶不整合面储层预测方法[J]. 石油地球物理勘探, 2013, 48(5): 793-798. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDQ201305020.htm

    LI Suhua, LU Qijun, XU Guoming, et al. Reservoir prediction in the top Leikoupo unconformity surface in the area XC, Sichuan[J]. Oil Geophysical Prospecting, 2013, 48(5): 793-798. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDQ201305020.htm
    [14]
    谢刚平. 川西坳陷雷四上亚段晶粒白云岩成岩作用和孔隙演化[J]. 长江大学学报(自然科学版), 2015, 12(17): 24-26. https://www.cnki.com.cn/Article/CJFDTOTAL-CJDL201517005.htm

    XIE Gangping. Diagenesis and porosity evolution of crystal grain dolomite in the upper section of the 4th member of Leikoupo Formation in the Western Sichuan Depression[J]. Journal of Yangtze University (Natural Science Edition), 2015, 12(17): 24-26. https://www.cnki.com.cn/Article/CJFDTOTAL-CJDL201517005.htm
    [15]
    马治鸾, 陈洪德, 钟怡江, 等. 四川盆地东北部元坝地区中三叠统雷口坡组四段古岩溶特征及其油气地质意义[J]. 地质通报, 2012, 31(4): 577-585. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201204010.htm

    MA Zhiluan, CHEN Hongde, ZHONG Yijiang, et al. Paleokarstification in carbonates of 4th member of Middle Triassic Leikoupo Formation in northeastern Sichuan Basin and its petroleum geological significance[J]. Geological Bulletin of China, 2012, 31(4): 577-585. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201204010.htm
    [16]
    夏勇, 刘海锋, 袁继明, 等. 靖边气田南部古岩溶特征及有利储层发育[J]. 东北石油大学学报, 2013, 37(6): 25-31. https://www.cnki.com.cn/Article/CJFDTOTAL-DQSY201306005.htm

    XIA Yong, LIU Haifeng, YUAN Jiming, et al. Paleokarst characteristics and the favorable reservoirs development in southern Jingbian gas field[J]. Journal of Northeast Petroleum University, 2013, 37(6): 25-31. https://www.cnki.com.cn/Article/CJFDTOTAL-DQSY201306005.htm
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