Lithologic Reservoirs ›› 2023, Vol. 35 ›› Issue (2): 21-30.doi: 10.12108/yxyqc.20230203

• PETROLEUM EXPLORATION • Previous Articles     Next Articles

Types and distribution of tight sandstone gas sweet spots of the third member of Upper Triassic Xujiahe Formation in Yuanba area, Sichuan Basin

HUANG Yanqing, LIU Zhongqun, WANG Ai, XIAO Kaihua, LIN Tian, JIN Wujun   

  1. Research Institute of Petroleum Exploration and Production, Sinopec, Beijing 100083, China
  • Received:2022-04-30 Revised:2022-06-17 Online:2023-03-01 Published:2023-03-07

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Abstract: Through core observation, thin section identification and logging analysis and other geophysical technologies, the characteristics of tight sandstone reservoirs of the third member of Upper Triassic Xujiahe Formation in western Yuanba area of Sichuan Basin were studied. Combined with gas well productivity characteristics and main controlling factors in the study area, the types and causes of gas reservoir sweet spots were summarized, and the distribution of the sweet spots was predicted. The results show that:(1) There are various sandstones of the third member of Xujiahe Formation, among which medium-coarse-grained calcareous lithic sandstone and fine conglomerate are high-quality reservoirs. There are various types of fractures, mainly low angle shearing cracks and diagenetic contraction joints.(2) There are two types of sweet spots, such as medium-coarse-grained calcareous lithic sandstone type and fine conglomerate type, which can be further subdivided into six types combined with fracture characteristics. There are differences in geological characteristics, test methods and trial mining characteristics of various sweet spots.(3) The formation of sweet spots is mainly controlled by sedimentation, diagenesis and tectonism. The medium-coarse-grained calcareous lithic sandstone and fine conglomerate are mostly distributed in the distributary channel near the boundary between delta plain and front. Differential recrystallization is the reason for the formation of gravel-edge fractures. The distribution of fractures is controlled by faults and stratum flexure caused by tectonic activity.(4) The medium-coarse-grained calcareous lithic sandstone and fine conglomerate are characterized by low GR, low CNL, medium-high Rd and medium AC values. The S-wave impedance of high-quality reservoirs and μρ(μ stands for shear modulus, ρ stands for density) are medium-high, and the sweet spots of medium-coarse-grained calcareous lithic sandstone, fine conglomerate and superimposed through gravel cracks are widely distributed in strip shape, while the other four types of sweet spots are sporadically distributed.

Key words: multi-attribute fusion, tight sandstone gas, sweet spot, Xujiahe Formation, Upper Triassic, Yuanba area, Sichuan Basin

CLC Number: 

  • TE122.2
[1] 康玉柱.中国非常规油气勘探重大进展和资源潜力[J].石油科技论坛, 2018, 37(4):1-7. KANG Yuzhu. Significant exploration progress and resource potential of unconventional oil and gas in China[J]. Petroleum Science and Technology Forum, 2018, 37(4):1-7.
[2] 邹才能, 翟光明, 张光亚, 等.全球常规-非常规油气形成分布、资源潜力及趋势预测[J].石油勘探与开发, 2015, 42(1):13-25. ZOU Caineng, ZHAI Guangming, ZHANG Guangya, et al. Formation, distribution, potential and prediction of global conventional and unconventional hydrocarbon resources[J]. Petroleum Exploration and Development, 2015, 42(1):13-25.
[3] 张大智, 张晓东, 杨步增.徐家围子断陷沙河子组致密气地质甜点综合评价[J].岩性油气藏, 2015, 27(5):98-103. ZHANG Dazhi, ZHANG Xiaodong, YANG Buzeng. Comprehensive evaluation of geological sweet point of tight gas of Shahezi Formation in Xujiaweizi fault depression[J]. Lithologic Reservoirs, 2015, 27(5):98-103.
[4] 淡永.川东北须家河组物源分析与沉积体系研究[D]. 成都:成都理工大学, 2011. DAN Yong. Analyses of the provenance and the depositional systems of Xujiahe Formation in northeast of Sichuan Basin[D]. Chengdu:Chengdu University of Technology, 2011.
[5] 郑荣臣, 李宏涛, 史云清, 等.川东北元坝地区三叠系须三段沉积特征及成岩作用[J].岩性油气藏, 2021, 33(3):13-26. ZHENG Rongchen, LI Hongtao, SHI Yunqing, et al. Sedimentary characteristics and diagenesis of the third member of Triassic Xujiahe Formation in Yuanba area, northeastern Sichuan Basin[J]. Lithologic Reservoirs, 2021, 33(3):13-26.
[6] 王浩, 周文, 张冲.元坝气藏须家河组三段储层特征与主控因素[J].西南石油大学学报(自然科学版), 2016, 38(4):19-26. WANG Hao, ZHOU Wen, ZHANG Chong. Reservoir characteristics and main controlling factor of the third member of Xujiahe Formation in Yuanba gas reservoir[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2016, 38(4):19-26.
[7] 张冲, 谢润成, 周文, 等.川东北元坝地区须三段致密储集层裂缝特征[J].新疆石油地质, 2014, 35(4):395-398. ZHANG Chong, XIE Runcheng, ZHOU Wen, et al. Fractures characteristics in tight reservoir of the 3rd member of Xujiahe Formation in Yuanba area in northeastern Sichuan Basin[J]. Xinjiang Petroleum Geology, 2014, 35(4):395-398.
[8] 唐自成, 钟大康, 王威, 等.川东北元坝地区须家河组三段钙屑砂岩孔隙类型及地质意义[J].石油与天然气地质, 2019, 40(5):1115-1125. TANG Zicheng, ZHONG Dakang, WANG Wei, et al. Pore types and geological significance of calcarenaceous sandstones in the 3rd member of Xujiahe Formation in Yuanba area, northeastern Sichuan Basin[J]. Oil & Gas Geology, 2019, 40(5):1115-1125.
[9] 郭旭升, 胡东风, 黄仁春, 等.四川盆地深层-超深层天然气勘探进展与展望[J].天然气工业, 2020, 40(5):1-14. GUO Xusheng, HU Dongfeng, HUANG Renchun, et al. Deep and ultra-deep natural gas exploration in the Sichuan Basin:Progress and prospect[J]. Natural Gas Industry, 2020, 40(5):1-14.
[10] 章惠, 关达, 向雪梅, 等.川东北元坝东部须四段裂缝型致密砂岩储层预测[J].岩性油气藏, 2018, 30(1):134-139. ZHANG Hui, GUAN Da, XIANG Xuemei, et al. Prediction for fractured tight sandstone reservoir of Xu 4 member in eastern Yuanba area, northeastern Sichuan Basin[J]. Lithologic Reservoirs, 2018, 30(1):134-139.
[11] 陈龙博, 何登发, 王贝, 等.川东北地区通南巴背斜中三叠世以来构造变形时间厘定及其地质意义[J]. 大地构造与成矿学, 2017, 41(3):433-445. CHEN Longbo, HE Dengfa, WANG Bei, et al. Dating the tectonic deformation since the Middle Triassic for the Tongnanba anticline in the northeastern Sichuan Basin and its geological implications[J]. Geotectonica et Metallogenia, 2017, 41(3):433-445.
[12] 金惠, 张俊, 马石玉.四川盆地上三叠统遗迹化石及其沉积环境[J].岩性油气藏, 2013, 25(1):24-28. JIN Hui, ZHANG Jun, MA Shiyu. Trace fossils and sedimentary environment of the Upper Triassic Xujiahe Formation in Sichuan Basin[J]. Lithologic Reservoirs, 2013, 25(1):24-28.
[13] 李宏涛, 史云清, 肖开华, 等.元坝气田须三段气藏层序沉积与储层特征[J].天然气工业, 2016, 36(9):20-34. LI Hongtao, SHI Yunqing, XIAO Kaihua, et al. Sequence, sedimentary and reservoir characteristics of Xu 3 gas reservoir in the Yuanba gas field, NE Sichuan Basin[J]. Natural Gas Industry, 2016, 36(9):20-34.
[14] 黄彦庆, 刘忠群, 林恬, 等.川东北元坝地区须家河组三段基于相控的相对优质储层预测[J].石油与天然气地质, 2021, 42(4):863-872. HUANG Yanqing, LIU Zhongqun, LIN Tian, et al. Lithofaciesbased prediction of relatively high-quality reservoirs of the Xu 3 member in Yuanba area, northeastern Sichuan Basin[J]. Oil & Gas Geology, 2021, 42(4):863-872.
[15] 刘冬冬, 杨东旭, 张子亚, 等.基于常规测井和成像测井的致密储层裂缝识别方法:以准噶尔盆地吉木萨尔凹陷芦草沟组为例[J].岩性油气藏, 2019, 31(3):76-85. LIU Dongdong, YANG Dongxu, ZHANG Ziya, et al. Fracture identification for tight reservoirs by conventional and imaging logging:A case study of Permian Lucaogou Formation in Jimsar Sag, Junggar Basin[J]. Lithologic Reservoirs, 2019, 31(3):76-85.
[16] LAW B E. Basin-centered gas systems[J]. AAPG Bulletin, 2002, 86(11):1891-1919.
[17] 杨升宇, 张金川, 黄卫东, 等.吐哈盆地柯柯亚地区致密砂岩气储层"甜点" 类型及成因[J]. 石油学报, 2013, 34(2):272-282. YANG Shengyu, ZHANG Jinchuan, HUANG Weidong, et al. "Sweet spot" types of reservoirs and genesis of tight sandstone gas in Kekeya area, Turpan-Hami Basin[J]. Acta Petrolei Sinica, 2013, 34(2):272-282.
[18] 赵仲祥, 董春梅, 林承焰, 等. 西湖凹陷深层低渗-致密气藏"甜点" 类型划分及成因探讨[J].石油与天然气地质, 2018, 39(4):778-790. ZHAO Zhongxiang, DONG Chunmei, LIN Chengyan, et al. Classification and origin of "sweet spots" in deep low permeability tight gas reservoirs, Xihu Sag, East China Sea Shelf Basin[J]. Oil & Gas Geology, 2018, 39(4):778-790.
[19] 蔡勋育, 邱桂强, 孙冬胜, 等.中国中西部大型盆地致密砂岩油气"甜点" 类型与特征[J]. 石油与天然气地质, 2020, 41(4):684-695. CAI Xunyu, QIU Guiqiang, SUN Dongsheng, et al. Types and characteristics of tight sandstone sweet spots in large basins of central-western China[J]. Oil & Gas Geology, 2020, 41(4):684-695.
[20] 苟启洋, 徐尚, 郝芳, 等.基于成像测井的泥页岩裂缝研究:以焦石坝区块为例[J].地质科技通报, 2020, 39(6):193-200. GOU Qiyang, XU Shang, HAO Fang, et al. Research on mud shale fractures based on image logging:A case study of Jiaoshiba area[J]. Bulletin of Geological Science and Technology, 2020, 39(6):193-200.
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