Petroleum Exploration and Development >

2016 , Vol. 43 >Issue 2: 189 - 197

DOI: https://doi.org/10.11698/PED.2016.02.04

Orignal Article

Advantageous shale lithofacies of Wufeng Formation-Longmaxi Formation in Fuling gas field of Sichuan Basin, SW China

  • WU Lanyu ,
  • HU Dongfeng ,
  • LU Yongchao ,
  • LIU Ruobing ,
  • LIU Xiaofeng
Expand
  • 1. Faculty of Earth Resources, China University of Geoscience (Wuhan), Wuhan 430074, China;
    2. Sinopec Exploration Branch Company, Chengdu 610041, China
Fold

Abstract

The lithofacies types of Upper Ordovician Wufeng Formation-Lower Silurian Longmaxi Formation shale, the main producing layer in Fuling gas field, are classified in detail using the modified ternary diagram of siliceous minerals-carbonates minerals-clay minerals. There develop eight lithofacies in the Wufeng-Longmaxi shale: siliceous shale lithofacies (S), mixed siliceous shale lithofacies (S-2), clay-rich siliceous shale lithofacies (S-3), calcareous/siliceous mixed shale lithofacies (M-1), argillaceous/siliceous mixed shale lithofacies (M-2), mixed shale lithofacies (M), silica-rich argillaceous shale lithofacies (CM-1), and argillaceous/calcareous mixed shale lithofacies (M-3). The advantageous shale lithofacies is defined as lithofacies with gas content reaching a specific industrial standard. Based on the current development status of the study area, advantageous shale lithofacies is divided into two classes, namely, Class I with gas content of more than 4.0 m3/t (also known as extra superior), Class II with gas content of 2.0-4.0 m3/t (also known as superior). The correlation between the abundance of organic matter, the content of siliceous mineral, clay content and gas content has been analyzed to establish the classification criteria for advantageous shale lithofacies in the Wufeng-Longmaxi shale. The mixed siliceous shale lithofacies (S-2) and clay-rich siliceous shale lithofacies (S-3) have been identified as Class I advantageous shale lithofacies, and argillaceous/siliceous mixed shale lithofacies (M-2) as Class II. The classification criteria of advantageous shale lithofacies can provide reference for shale gas evaluation in other exploration areas.

Key words： shale; advantageous shale lithofacies; Ordovician Wufeng Formation; Silurian Longmaxi Formation; Fuling gas field; Sichuan Basin

Cite this article

WU Lanyu , HU Dongfeng , LU Yongchao , LIU Ruobing , LIU Xiaofeng . Advantageous shale lithofacies of Wufeng Formation-Longmaxi Formation in Fuling gas field of Sichuan Basin, SW China[J]. Petroleum Exploration and Development, 2016 , 43(2) : 189 -197 . DOI: 10.11698/PED.2016.02.04

References

[1] 李湘涛, 石文睿, 郭美瑜, 等. 涪陵页岩气田焦石坝区海相页岩气层特征研究[J]. 石油天然气学报, 2014, 36(11): 11-15.
LI Xiangtao, SHI Wenrui, GUO Meiyu, et al. Characteristics of marine shale gas reservoirs in Jiaoshiba area of Fuling shale gas field[J]. Journal of Oil and Gas Technology, 2014, 36(11): 11-15.
[2] 张金川, 姜生玲, 唐玄, 等. 我国页岩气富集类型及资源特点[J]. 天然气工业, 2009, 29(12): 109-114.
ZHANG Jinchuan, JIANG Shengling, TANG Xuan, et al. Accumulation types and resources characteristics of shale gas in China[J]. Natural Gas Industry, 2009, 29(12): 109-114.
[3] 张金川, 聂海宽, 徐波, 等. 四川盆地页岩气成藏地质条件[J]. 天然气工业, 2008, 28(2): 151-156.
ZHANG Jinchuan, NIE Haikuan, XU Bo, et al. Geological condition of shale gas accumulation in Sichuan Basin[J]. Natural Gas Industry, 2008, 28(2): 151-156.
[4] JARVIE D M, HILL R J, RUBLE T E. Unconventional shale-gas systems: The Mississippian Barnett Shale of north-central Texas as one model for thermogenic shale-gas assessment[J]. AAPG Bulletin, 2007, 91(4): 475-499.
[5] RICKMAN R, MULLEN M, PETRE E. A practical use of shale petrophysics for stimulation design optimization: All shale plays are not clones of the Barnett shale[R]. SPE 115258, 2008.
[6] DOYLE J, SWEET M L. Three-dimension distribution of lithofacies, bounding surfaces, porosity, and permeability in a fluvial sandstone: Gypsy sandstone of Northern Oklahoma[J]. AAPG Bulletin, 1995, 79(1): 70-96.
[7] SONIBARE W A, MILES D. Lithofacies analysis and modelling of the Kookfontein Deltaic Successions, TanquaDepocenter, Southwest Karoo Basin, South Africa[R]. SPE 130508, 2010.
[8] YAO T, CHOPRA A. Integration of seismic data attribute map into 3D facies modeling[J]. Journal of Petroleum Science & Engineering, 2000, 27(1): 69-84.
[9] MITRA A, WARRINGTON D S, SOMMER A. Application of lithofacies models to characterize unconventional shale gas reservoirs and identify optimal completion intervals[R]. SPE 132513, 2010.
[10] 郭彤楼, 刘若冰. 复杂构造区高演化程度海相页岩气勘探突破的启示: 以四川盆地东部盆缘JY1井为例[J]. 天然气地球科学, 2013, 24(4): 643-651.
GUO Tonglou, LIU Ruobing. Implications from marine shale gas exploration breakthrough in complicated structural area at high thermal stage: Taking Longmaxi Formation in well JY1 as example[J]. Natural Gas Geoscience, 2013, 24(4): 643-651.
[11] 郭旭升, 胡东风, 文治东, 等. 四川盆地及周缘下古生界海相页岩气富集高产主控因素: 以焦石坝地区五峰组—龙马溪组为例[J]. 中国地质, 2014, 41(3): 893-901.
GUO Xusheng, HU Dongfeng, WEN Zhidong, et al. Major factors controlling the accumulation and high productivity in marine shale gas in the Lower Paleozoic of Sichuan Basin and its periphery: A case study of the Wufeng-Longmaxi Formation of Jiaoshiba area[J]. Geology in China, 2014, 41(3): 893-901.
[12] 郭彤楼, 张汉荣. 四川盆地焦石坝页岩气田形成与富集高产模式[J]. 石油勘探与开发, 2014, 41(1): 28-36.
GUO Tonglou, ZHANG Hanrong. Formation and enrichment mode of Jiaoshiba shale gas field, Sichuan Basin[J]. Petroleum Exploration and Development, 2014, 41(1): 28-36.
[13] 朱志军, 陈洪德. 川东南地区早志留世晚期沉积特征及沉积模式分析[J]. 中国地质, 2012, 39(1): 64-76.
ZHU Zhijun, CHEN Hongde. An analysis of sedimentary characteristics and model of Silurian Xiaoheba Formation in southeastern Sichuan Province[J]. Geology in China, 2012, 39(1): 64-76.
[14] HICKEY J J, HENK B. Lithofacies summary of the Mississippian Barnett Shale, Mitchell 2 T.P. Sims well, Wise County, Texas[J]. AAPG Bulletin, 2007, 91(4): 437-443.
[15] LOUCKS R G, RUPPEL S C. Mississippian Barnett Shale: Lithofacies and depositional setting of a deep-water shale-gas succession in the Fort Worth Basin, Texas[J]. AAPG Bulletin, 2007, 91(4): 579-601.
[16] WANG G C, CARR T R. Methodology of organic-rich shale lithofacies identification and prediction: A case study from Marcellus Shale in the Appalachian Basin[J]. Computer & Geosciences, 2012, 49(2): 51-163.
[17] 李志明, 全秋琦. 中国南部奥陶—志留纪笔石页岩相类型及其构造古地理[J]. 地球科学——中国地质大学学报, 1992,17(3): 261-269.
LI Zhiming, QUAN Qiuqi. Lithofacies types and tectonic palaeogeography of Ordovician and Silurian graptolite-bearing strata in south China[J]. Earth Science-Journal of China University of Geosciences, 1992, 17(3): 261-269.
[18] WANG G C, CARR T R. Organic-rich Marcellus Shale lithofacies modeling and distribution pattern analysis in the Appalachian Basin[J]. AAPG Bulletin, 2013, 97(12): 2173-2205.
[19] 王国昌, 琚宜文, TIMOTHY R C. 基于矿物组成与有机质含量的富有机质泥页岩岩相研究及其意义[R]. 北京: 中国地球科学联合学术年会, 2014.
WANG Guochang, JU Yiwen, TIMOTHY R C. Research on organic-rich shale lithofacies identification and significance based on mineral composition and content of organic matter[R]. Beijing: CUGS, 2014.
[20] DIAZ H G, LEWIS R, MILLER C, et al. Evaluating the impact of mineralogy on reservoir quality and completion quality of organic shale plays[R]. Salt Lake City, Utah: AAPG Rocky Mountain Section Meeting, 2013.
[21] 王志峰, 张元福, 梁雪莉, 等. 四川盆地五峰组—龙马溪组不同水动力成因页岩岩相特征[J]. 石油学报, 2014, 35(4): 623-632.
WANG Zhifeng, ZHANG Yuanfu, LIANG Xueli, et al. Characteristics of shale lithofacies formed under different hydrodynamic conditions in the Wufeng-Longmaxi Formation, Sichuan Basin[J]. Acta Petrolei Sinica, 2014, 35(4): 623-632.
[22] 邹才能, 董大忠, 王社教, 等. 中国页岩气形成机理、地质特征及资源潜力[J]. 石油勘探与开发, 2010, 37(6): 641-653.
ZOU Caineng, DONG Dazhong, WANG Shejiao, et al. Geological characteristics, formation mechanism and resource potential of shale gas in China[J]. Petroleum Exploration and Development, 2010, 37(6): 641-653.
[23] 王社教, 杨涛, 张国生, 等. 页岩气主要富集因素与核心区选择及评价[J]. 中国工程科学, 2012, 14(6): 94-100.
WANG Shejiao, YANG Tao, ZHANG Guosheng, et al. Shale gas enrichment factors and the selection and evaluation of the core area[J]. Engineering Sciences, 2012, 14(6): 94-100.
[24] 中华人民共和国质量监督检验检疫总局. 页岩气地质评价方法: GB/T 31483—2015[S]. 北京: 中国标准出版社, 2015.
General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China. Geological evaluation methods for shale gas: GB/T 31483—2015[S]. Beijing: China Standard Press, 2015.
[25] BOYER C, KIESCHNICK J, LEWIS R E, et al. Producing gas from its source[J]. Oilfield Review, 2006, 18(6): 36-49.
[26] 赵靖舟, 方朝强, 张洁, 等. 由北美页岩气勘探开发看我国页岩气选区评价[J]. 西安石油大学学报(自然科学版), 2011, 26(2): 1-7.
ZHAO Jingzhou, FANG Chaoqiang, ZHANG Jie, et al. Evaluation of China shale gas from the exploration and development of North America shale gas[J]. Journal of Xi’an Shiyou University(Natural Science Edition), 2011, 26(2): 1-7.
[27] BURNAMAN M D, XIA Wenwu, SHELTON J. Shale gas play screening and evaluation criteria[J]. China Petroleum Exploration, 2009, 14(3): 51-64.
[28] 李延钧, 刘欢, 刘家霞, 等. 页岩气地质选区及资源潜力评价方法[J]. 西南石油大学学报(自然科学版), 2011, 33(2): 28-34.
LI Yanjun, LIU Huan, LIU Jiaxia, et al. Geological regional selection and an evaluation method of potential of shale gas[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2011, 33(2): 28-34.
[29] 李延钧, 刘欢, 张烈辉, 等. 四川盆地南部下古生界龙马溪组页岩气评价指标下限[J]. 中国科学: 地球科学, 2013, 43(7): 1088-1095.
LI Yanjun, LIU Huan, ZHANG Liehui, et al. Lower limits of evaluation parameters for the lower Paleozoic Longmaxi shale gas in southern Sichuan Province[J]. SCIENCE CHINA Earth Sciences, 2013, 56(5): 710-717.
[30] 王淑芳, 邹才能, 董大忠, 等. 四川盆地富有机质页岩硅质生物成因及对页岩气开发的意义[J]. 北京大学学报(自然科学版), 2014, 50(3): 476-486.
WANG Shufang, ZOU Caineng, DONG Dazhong, et al. Biogenic silica of organic-rich shale in Sichuan Basin and its significance for shale gas[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2014, 50(3): 476-486.
[31] 杜永灯, 沈俊, 冯庆来. 放射虫在生产力和烃源岩研究中的应用[J]. 地球科学——中国地质大学学报, 2012, 37(2): 147-155.
DU Yongdeng, SHEN Jun, FENG Qinglai. Applications of radiolarian for productivity and hydrocarbon-source rocks[J]. Earth Science-Journal of China University of Geosciences, 2012, 37(2): 147-155.-
Options
Outlines

/

〈 〉

Copyright © Petroleum Exploration and Development
Address:P. O. Box 910, No.20 Xueyuan Road, Haidian District, Beijing 100083, China
Powered by Beijing Magtech Co. Ltd.