Issue 4
Aug 2020
Turn off MathJax
Article Contents
Yang LI, ZhenKui JIN, XiaoEr ZHU, ShuTing SHI, Kun YUAN, Rui LI, JinYi WANG. Lithofacies and Sedimentary Model of Tidal⁃dominated Estuary: A case study of LU interval from Upper Cretaceous Napo Formation, northern Oriente Basin, Ecuador[J]. JOURNAL OF MECHANICAL ENGINEERING, 2020, 38(4): 826-837. doi: 10.14027/j.issn.1000-0550.2019.068
Citation: Yang LI, ZhenKui JIN, XiaoEr ZHU, ShuTing SHI, Kun YUAN, Rui LI, JinYi WANG. Lithofacies and Sedimentary Model of Tidal⁃dominated Estuary: A case study of LU interval from Upper Cretaceous Napo Formation, northern Oriente Basin, Ecuador[J]. JOURNAL OF MECHANICAL ENGINEERING, 2020, 38(4): 826-837. doi: 10.14027/j.issn.1000-0550.2019.068

Lithofacies and Sedimentary Model of Tidal⁃dominated Estuary: A case study of LU interval from Upper Cretaceous Napo Formation, northern Oriente Basin, Ecuador

doi: 10.14027/j.issn.1000-0550.2019.068
Funds:

National Basic Research Program of China (973 Program) 2006CB202300

  • Received Date: 22 May 2019
  • Publish Date: 10 Aug 2020
  • A predominantly tidal estuary is the main reservoir type in the Upper Cretaceous Napo Formation, northern Oriente Basin, Ecuador, although its identification, lithofacies and sedimentary distribution are unclear at present. Establishing a reliable sedimentary model of the estuary is of great significance for predicting the presence of oil and gas reservoirs. A comprehensive analysis of the core, including grain size, well logging, thin section and geochemical data, found that: (1) The combination of lithofacies, geochemical and vertical sequence characteristics indicates the development of a tidal⁃dominated estuary⁃shelf sedimentary system. (2) The tidal⁃dominated estuary contains middle⁃and outer estuary subfacies. The middle estuary contains tidal channels with an overbanked mixture of flat and salt⁃marsh microfacies, the distribution shown as bell-shaped on the logging curve. Along the axis of the outer estuary, tidal sand bar and upper⁃flow⁃regime sand flat microfacies were developed, producing a box⁃shaped logging curve. Muddy tidal flat microfacies occur on both flanks of the outer estuary, shown as finger⁃shaped logging curve. A muddy shelf and storm⁃formed glauconitic sheet sand developed under the normal wave base. (3) The paleogeography of the study area leans towards the southwest. Tidal channels developed in the middle estuary in the northeast. The southwestern channel gradually widened and north⁃south tidal bars were distributed along the axis of the outer estuary. A sheet⁃like muddy tidal flat developed on the flanks of the estuary.

     

  • loading
  • [1]
    Dalrymple R W, Zaitlin B A, Boyd R. Estuarine facies models; conceptual basis and stratigraphic implications[J]. Journal of Sedimentary Research, 1992, 62(6): 1130-1146.
    [2]
    Dalrymple R W, Choi K. Morphologic and facies trends through the fluvial⁃marine transition in tide-dominated depositional systems: A schematic framework for environmental and sequence-stratigraphic interpretation[J]. Earth-Science Reviews, 2007, 81(3/4): 135-174.
    [3]
    齐永安. 河口湾相模式研究[J]. 地质科技情报,1999,18(1):45-49.

    Qi Yong′an. Research on estuarine facies models[J]. Geological Science and Technology Information, 1999, 18(1): 45-49.
    [4]
    钟大康,漆立新,刘康宁,等. 塔河油田南部石炭系卡拉沙依组沉积相研究[J]. 沉积学报,2009,27(4):614-621.

    Zhong Dakang, Qi Lixin, Liu Kangning, et al. Study on sedimentary facies of Carboniferous Kalashayi Formation in the south of Tahe oilfield[J]. Acta Sedimentologica Sinica, 2009, 27(4): 614-621.
    [5]
    赵霞飞,胡东风,张闻林,等. 四川盆地元坝地区上三叠统须家河组的潮控河口湾与潮控三角洲沉积[J]. 地质学报,2013,87(11):1748-1762.

    Zhao Xiafei, Hu Dongfeng, Zhang Wenlin, et al. Tide-dominated estuarine and deltaic deposition of the Upper-Triassic Xujiahe Formation in the Yuanba area, Sichuan Basin[J]. Acta Geologica Sinica, 2013, 87(11): 1748-1762.
    [6]
    Plink-Björklund P. Stacked fluvial and tide-dominated estuarine deposits in high-frequency (fourth-order) sequences of the Eocene Central Basin, Spitsbergen[J]. Sedimentology, 2005, 52(2): 391-428.
    [7]
    James N P, Dalrymple R W. Facies models 4: GEOtext 6[M]. Newfoundland: Geological Association of Canada, 2010.
    [8]
    Leuven J R F W, Braat L, Van Dijk W M, et al. Growing forced bars determine nonideal estuary planform[J]. Journal of Geophysical Research: Earth Surface, 2018, 123(11): 2971-2992.
    [9]
    van De Lageweg W I, Braat L, Parsons D R, et al. Controls on mud distribution and architecture along the fluvial-to-marine transition[J]. Geology, 2018, 46(11): 971-974.
    [10]
    White H J, Skopec R A, Ramirez F A, et al. Reservoir characterization of the Hollin and Napo Formations, western Oriente Basin, Ecuador[C]//Tankard A J, Suarez R, Welsink H J. Petroleum basins of South America. AAPG Memoir62: 573-596.
    [11]
    Shanmugan G, Poffenberger M, Álava J T. Tide-dominated estuarine Facies in the Hollin and Napo (“T” and “U”) formations (Cretaceous), Sacha Field, Oriente Basin, ecuador: reply[J]. AAPG Bulletin, 2000, 84(5): 652-682.
    [12]
    陈诗望,姜在兴,田继军,等. 厄瓜多尔Oriente盆地南部区块沉积特征[J]. 海洋科学,2008,28(1):31-35.

    Chen Shiwang, Jiang Zaixing, Tian Jijun,et al. Sedimentary characteristics in the south block of Orient Basin, Ecuador[J]. Offshore Oil, 2008, 28(1): 31-35.
    [13]
    刘畅,张琴,谢寅符,等. 厄瓜多尔Oriente盆地东北部区块白垩系层序地层格架及发育模式[J]. 沉积学报,2014,32(6):1123-1131.

    Liu Chang, Zhang Qin, Xie Yinfu, et al. Sequence stratigraphic framework and development model of the Cretaceous in northeast block, Oriente Basin, Ecuador[J]. Acta Sedimentologica Sinica, 2014, 32(6): 1123-1131.
    [14]
    Vallejo C, Tapia D, Gaibor J, et al. Geology of the Campanian M1 sandstone oil reservoir of eastern Ecuador: A delta system sourced from the Amazon Craton[J]. Marine and Petroleum Geology, 2017, 86: 1207-1223.
    [15]
    赵全基,彭汉昌,张壮域. 中国陆架海绿石分布特征及其意义[J]. 海洋科学,1992(5):41-44.

    Zhao Quanji, Peng Hanchang, Zhang Zhuangyu. Distribution properties of glauconites in Chinese shelf sea and their significance[J]. Marine Sciences, 1992(5): 41-44.
    [16]
    李军,王贵文. 高分辨率倾角测井在砂岩储层中的应用[J]. 测井技术,1995,19(5):352-357.

    Li Jun, Wang Guiwen. Applications of high resolution dip log to the study of sand reservoir[J]. Well Logging Technology, 1995, 19(5): 352-357.
    [17]
    邓平. 微量元素在油气勘探中的应用[J]. 石油勘探与开发,1993,20(1):27-32.

    Deng Ping. The application of trace amount of elements in the exploration of oil and gas[J]. Petroleum Exploration and Development, 1993, 20(1): 27-32.
    [18]
    田景春,张翔. 沉积地球化学[M]. 北京:地质出版社,2016.

    Tian Jingchun, Zhang Xiang. Sedimentary geochemistry[M]. Beijing: Geological Publishing House, 2016.
    [19]
    Longhitano S G, Mellere D, Steel R J, et al. Tidal depositional systems in the rock record: A review and new insights[J]. Sedimentary Geology, 2012, 279: 2-22.
    [20]
    Ichaso A A, Dalrymple R W. Tide- and wave-generated fluid mud deposits in the Tilje Formation (Jurassic), offshore Norway[J]. Geology, 2009, 37(6): 539-542.
    [21]
    Fan D D, Wang Y, Liu M. Classifications, sedimentary features and facies associations of tidal flats[J]. Journal of Palaeogeography, 2013, 2(1): 66-80.
    [22]
    阳孝法,谢寅符,张志伟,等. 奥连特盆地白垩系海绿石成因类型及沉积地质意义[J]. 地球科学,2016,41(10):1696-1708.

    Yang Xiaofa, Xie Yinfu, Zhang Zhiwei, et al. Genetic type and sedimentary geological significance of Cretaceous glauconite in Oriente Basin, Ecuador[J]. Earth Science, 2016, 41(10): 1696-1708.
  • 加载中

Catalog

    Figures(9)  / Tables(1)

    Article Metrics

    Article views(149) PDF downloads(0) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return