岩性油气藏 ›› 2020, Vol. 32 ›› Issue (5): 13–22.doi: 10.12108/yxyqc.20200502

• 油气地质 • 上一篇    下一篇

北大巴山地区鲁家坪组页岩地球化学特征及勘探意义

钟红利1, 吴雨风1, 闪晨晨2   

  1. 1. 西安科技大学 地质与环境学院, 西安 710054;
    2. 长安大学 地球科学与资源学院, 西安 710064
  • 收稿日期:2020-01-08 修回日期:2020-03-01 出版日期:2020-10-01 发布日期:2020-08-08
  • 作者简介:钟红利(1979-),女,博士,讲师,主要从事石油地质方面的教学科研工作。地址:(710054)陕西省西安市雁塔区雁塔中路58号。Email:497322725@qq.com。
  • 基金资助:
    国家自然科学青年基金项目“致密砂岩储层微观孔喉非均质性及对石油分布的控制作用”（编号：41502137）资助

Geochemical characteristics and exploration significance of shale of Lujiaping Formation in northern Dabashan area

ZHONG Hongli1, WU Yufeng1, SHAN Chenchen2   

  1. 1. College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China;
    2. School of Earth Science and Resources, Chang'an University, Xi'an 710064, China
  • Received:2020-01-08 Revised:2020-03-01 Online:2020-10-01 Published:2020-08-08

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247

摘要： 为揭示北大巴山地区下寒武统暗色页岩的生烃潜力，以该区鲁家坪组野外露头区样品的分析数据为基础，分析鲁家坪组烃源岩的地球化学特征，并探讨其页岩气勘探意义。结果表明：北大巴山地区鲁家坪组烃源岩有机质丰度高，样品TOC质量分数为0.182%～9.063%，平均值为3.21%；有机质类型为Ⅰ—Ⅱ1型，有机质主要来源于低盐度浅水中的菌藻类微生物；镜质体反射率（RO）值为1.36%～ 2.56%，平均值为1.86%，岩石热解峰温（Tmax）为418～530℃，平均值为460℃，烃源岩已进入高成熟—过成熟阶段，表明处于生湿气或干气阶段，原始生烃潜力较好；北大巴山地区鲁家坪组暗色页岩厚度大，热演化程度高，烃源岩中的裂隙、溶孔可成为页岩气的吸附储集空间，构造改造较弱区及侧向封堵良好的断层下盘有望形成页岩气富集的有利区。

关键词: 页岩气, 地球化学特征, 下寒武统, 鲁家坪组, 北大巴山

Abstract: In order to reveal the hydrocarbon generating potential of the dark shale of Lower Cambrian Lujiaping Formation in northern Dabashan area,based on the geochemical analysis data of the samples of Lujiaping Formation in the outcrop area, the geochemical characteristics of the source rocks and the exploration significance of shale gas were discussed. The results show that the source rocks of Lujiaping formation in northern Dabashan area have high organic matter abundance,and the TOC content of the samples ranges from 0.182% to 9.063% with an average value of 3.21%. The organic matter is typeⅠ-Ⅱ1, and mainly comes from bacteria and algae in low salinity shallow water. The vitrinite reflectance(Ro)ranges from 1.36% to 2.56% with an average value of 1.86%,and the peak temperature of rock pyrolysis(Tmax)ranges from 418℃ to 530℃ with an average value of 460℃. The source rocks have entered a high-maturity to over-maturity stage,indicating that it is in the stage of generating moisture or dry gas,and the original hydrocarbon generation potential is good. The dark shale of Lujiaping Formation in northern Dabashan area is thick with high degree of thermal evolution. The fissures and dissolved pores in the source rocks can become the adsorption storage space of shale gas. Favorable areas for shale gas enrichment are expected to be formed when having weak structural area or footwall with good lateral sealing.

Key words: shale gas, geochemical characteristics, Lower Cambrian, Lujiaping Formation, northern Dabashan area

中图分类号: 

  • TE122.1+13
[1] 邹才能, 赵群, 董大忠, 等.页岩气基本特征、主要挑战与未来前景.天然气地球科学, 2017, 28(12):1781-1796. ZOU C N, ZHAO Q, DONG D Z, et al. Geological characteristics, main challenges and future prospect of shale gas. Natural Gas Geoscience, 2017, 28(12):1781-1796.
[2] 聂海宽, 何治亮, 刘光祥, 等.中国页岩气勘探开发现状与优选方向.中国矿业大学学报, 2020, 49(1):13-35. NIE H K, HE Z L, LIU G X, et al. Status and direction of shale gas exploration and development in China. Journal of China University of Mining & Technology, 2020, 49(1):13-35.
[3] GAI S H, LIU H Q, HE S L, et al. Shale reservoir characteristics and exploration potential in the target:a case study in the Longmaxi Formation from the southern Sichuan basin of China. Journal of Natural Gas Science and Engineering, 2016, 31(4):86-97.
[4] 赵文智, 胡素云, 汪泽成, 等.中国元古界-寒武系油气地质条件与勘探地位.石油勘探与开发, 2018, 45(1):1-13. ZHAO W Z, HU S Y, WANG Z C, et al. Petroleum geological conditions and exploration importance of Proterozoic to Cambrian in China. Petroleum Exploration and Development, 2018, 45(1):1-13.
[5] 翟刚毅, 王玉芳, 包书景, 等.我国南方海相页岩气富集高产主控因素及前景预测.地球科学, 2017, 42(7):1057-1068. ZHAI G Y, WANG Y F, BAO S J, et al. Major factors controlling the accumulation and high productivity of marine shale gas and prospect forecast in southern China. Journal of Earth Science, 2017, 42(7):1057-1068.
[6] 姜生玲, 汪生秀, 洪克岩, 等.渝东北地区下古生界页岩气聚集条件及资源潜力.岩性油气藏, 2017, 29(5):11-18. JIANG S L, WANG S X, HONG K Y, et al. Accumulation conditions of Lower Paleozoic shale gas and its resources in northeastern Chongqing. Lithologic Reservoirs, 2017, 29(5):11-18.
[7] LIU Y C, CHEN D X, QIU N S, et al. Geochemistry and origin of continental natural gas in the western Sichuan Basin,China. Journal of Natural Gas Science and Engineering, 2018, 49(1):123-131.
[8] WANG W Y, PANG X Q, CHEN Z X, et al. Quantitative prediction of oil and gas prospects of the Sinian-Lower Paleozoic in the Sichuan Basin in central China. Energy, 2019, 174(5):861-872.
[9] GU Z D, YIN J F, JIANG H, et al. Tectonic evolution from late Sinian to early Paleozoic and natural gas exploration in northwestern Sichuan Basin,SW China. Petroleum Exploration and Development, 2016, 43(1):1-12.
[10] 王宏波, 郭玮, 章贵松, 等.鄂尔多斯盆地南缘下寒武统地层划分及沉积演化特征.岩性油气藏, 2019, 31(4):13-20. WANG H B, GUO W, ZHANG G S, et al. Stratigraphic division and sedimentary evolution characteristics of Lower Cambrian in the southern margin of Ordos Basin. Lithologic Reservoirs, 2019, 31(4):13-20.
[11] ZOU C N, WEI G Q, XU C C, et al. Geochemistry of the SinianCambrian gas system in the Sichuan Basin, China. Organic Geochemistry, 2014, 74(9):13-21.
[12] DU J H, PAN W Q. Accumulation conditions and play targets of oil and gas in the Cambrian subsalt dolomite, Tarim Basin, NW China. Petroleum Exploration and Development, 2016, 43(3):360-374.
[13] WEI G Q, YANG W, ZHANG J, et al. The pre-Sinian rift in central Sichuan Basin and its control on hydrocarbon accumulation in the overlying strata. Petroleum Exploration and Development, 2018, 45(2):193-203.
[14] 余川, 曾春林, 周洵, 等.大巴山冲断带下寒武统页岩气构造保存单元划分及分区评价. 天然气地球科学, 2018, 29(6):853-865. YU C, ZENG C L, ZHOU X, et al. Tectonic preservation unit division and zoning evaluation of shale gas in the Lower Cambrian of Dabashan thrust belt. Natural Gas Geoscience, 2018, 29(6):853-865.
[15] 陈子健.渝东北、渝东南地区下寒武统富有机质页岩生排烃史.武汉:长江大学, 2019. CHEN Z J. Hydrocarbon generation and expulsion history of organic matter-rich shale in the northeastern and southeastern Chongqing. Wuhan:Yangtze University, 2019.
[16] 朱瑜.构造强改造区页岩气富集条件研究.成都:西南石油大学, 2016. ZHU Y. Study on shale gas enrichment conditions in the strong reconstruction zone:an example for Lower Cambrian in Chengkou area of Chongqin. Chengdu:Southwest Petroleum University, 2016.
[17] 段金宝, 张庆峰, 范小军.大巴山前构造带油气苗分布及油气成藏特征.地质科技情报, 2016, 35(5):163-167. DUAN J B, ZHANG Q F, FAN X J. Distribution of oil-gas seepages and characteristics of pool forming at Dabashan piedmont structural belt. Geological Science and Technology Information, 2016, 35(5):163-167.
[18] 董云鹏, 查显峰, 付明庆, 等.秦岭南缘大巴山褶皱-冲断推覆构造的特征.地质通报, 2008, 27(9):1493-1508. DONG Y P, ZHA X F, FU M Q, et al. Characteristics of the Dabashan fold-thrust nappe structure at the southern margin of the Qinling, China. Geological Bulletin of China, 2008, 27(9):1493-1508.
[19] 雒昆利.北大巴山区鲁家坪组的厘定.地层学杂志, 2006, 30(2):149-156. LUO K L. The Lujiaping Formation of north Dabashan. Journal of Stratigraphy, 2006, 30(2):149-156.
[20] 陈安定.海相"有效烃源岩"定义及丰度下限问题讨论.石油勘探与开发, 2005, 32(2):23-25. CHEN A D. Definition and abundance threshold of marine source rocks developed in South China. Petroleum Exploration and Development, 2005, 32(2):23-25.
[21] 饶丹, 章平澜, 邱蕴玉.有效烃源岩下限指标初探.石油实验地质, 2003, 25(增刊1):578-581.RAO D, ZHANG P L, QIU Y Y. Discussion on lower limit of content of organic matters for effective source rocks. Petroleum Geology and Experiment, 2003, 25(Suppl 1):578-581.
[22] 张水昌, 梁狄刚, 张大江.关于古生界烃源岩有机质丰度的评价标准.石油勘探与开发, 2002, 29(2):8-12. ZHANG S C, LIANG D G, ZHANG D J. Evaluation criteria for Paleozoic effective hydrocarbon source rocks. Petroleum Exploration and Development, 2002, 29(2):8-12.
[23] PETERS K E. Guideline for evaluating petroleum source rock using programmed pyrolysis. AAPG Bulletin, 1986, 70(3):318-329.
[24] PETERS K E, CASSA M R. Applied source rock geochemistry. AAPG Memoir 60, 1994:93-120.
[25] JARVIE D M. Total organic carbon(TOC)analysis. AAPG Memoir, 1991:113-118.
[26] 陈文彬, 付修根, 谭富文, 等.羌塘盆地上三叠统土门格拉组烃源岩生物标志物地球化学特征. 现代地质, 2014, 28(1):216-223. CHEN W B, FU X G, TAN F W, et al. Geochemical characteristics of biomarkers of the upper Triassic source rocks from Tumengela Formation in Qiangtang Basin of Tibet. Geoscience, 2014, 28(1):216-223.
[27] PETERS K E, WALTERS C C, MOLDOWAN J M. The biomarker guide(2nd ed):Ⅱ. Biomarkers and isotopes in petroleum exploration and earth history. Cambridge:Cambridge University Press, 2005:1-708.
[28] 卢双舫, 张敏.油气地球化学.北京:石油工业出版社, 2008. LU S F, ZHANG M. Oil and gas geochemistry. Beijing:Petroleum Industry Press, 2008.
[29] 谢徽.北大巴山大型毒重石矿床的有机地球化学特征及形成环境.北京:中国地质大学(北京), 2006. XIE H. Organic geochemistry and ore-forming environment of the large witherite deposits in North Daba Mountains, China. Beijing:China University of Geoscienees(Beijing), 2006.
[30] 黄金亮, 邹才能, 李建忠, 等.川南下寒武统筇竹寺组页岩气形成条件及资源潜力.石油勘探与开发, 2012, 39(1):69-75. HUANG J L, ZOU C N, LI J Z, et al. Shale gas generation and potential of the Lower Cambrian Qiongzhusi Formation in southern Sichuan Basin, China. Petroleum Exploration and Development, 2012, 39(1):69-75.
[31] 李贤庆, 赵佩, 孙杰, 等.川南地区下古生界页岩气成藏条件研究.煤炭学报, 2013, 38(5):864-869. LI X Q, ZHAO P, SUN J, et al. Study on the accumulation conditions of shale gas from the lower Paleozoic in the south region of Sichuan Basin. Journal of China Coal Society, 2013, 38(5):864-869.
[32] 中国石油天然气总公司.SY/T 5735-1995陆相烃源岩地球化学评价方法.北京:石油工业出版社, 1995. China National Petroleum Corporation. SY/T 5735-1995 Geochemical evaluation of terrestrial source rock. Beijing:Petroleum Industry Press, 1995.
[33] 黄第藩, 李晋超, 周翥虹, 等.陆相有机质演化和成烃机理.北京:石油工业出版社, 1984. HUANG D F, LI J C, ZHOU Z H, et al. Evolution and hydrocarbon generation mechanism of terrestrial organic matter. Beijing:Petroleum Industry Press, 1984.
[34] 陈建平, 梁狄刚, 张水昌, 等.中国古生界海相烃源岩生烃潜力评价标准与方法.地质学报, 2012, 86(7):1132-1142. CHEN J P, LIANG D G, ZHANG S C, et al. Evaluation criterion and methods of the hydrocarbon generation potential for China's Paleozoic marine source rocks. Acta Geologica Sinica, 2012, 86(7):1132-1142.
[35] 程克明, 王兆云.高成熟和过成熟海相碳酸盐岩生烃条件评价方法研究.中国科学:D辑地球科学, 1996, 6(26):537-543. CHENG K M, WANG Z Y. Evaluation of hydrocarbon generation conditions in high maturity and overripe marine carbonate rocks. Science in China:Series D Earth Sciences, 1996, 6(26):537-543.
[36] 吉让寿, 高长林, 秦德余.华北与扬子两板块的拼贴方式与扬子北缘古生代盆地应变特征. 石油实验地质, 2004, 26(2):143-152. JI R S, GAO C L, QIN D Y. Matching mode of North China and Yangtze plates and strain characteristics of the Paleozoic basin in the north edge of the Yangtze plate. Petroleum Geology and Experiment, 2004, 26(2):143-152.
[37] 陈相霖, 郭天旭, 石砥石, 等.陕南地区牛蹄塘组页岩孔隙结构特征及吸附能力.岩性油气藏, 2019, 31(5):52-60. CHEN X L, GUO T X, SHI D S, et al. Pore structure characteristics and adsorption capacity of Niutitang Formation shale in southern Shaanxi. Lithologic Reservoirs, 2019, 31(5):52-60.
[38] 程俊, 徐晓飞, 张文峰, 等.上扬子西北缘宁强湾牛蹄塘组有机地球化学特征.岩性油气藏, 2017, 29(1):21-26. CHENG J, XU X F, ZHANG W F, et al. Organic geochemical characteristics of Niutitang Formation in Ningqiang Bay, the northwestern margin of Upper Yangtze platform. Lithologic Reservoirs, 2017, 29(1):21-26.
[39] 彭波, 刘羽琛, 漆富成, 等.湘西北地区新元古界陡山沱组页岩气成藏条件.岩性油气藏, 2017, 29(4):47-54. PENG B, LIU Y C, QI F C, et al. Shale gas accumulation conditions of Neoproterozoic Doushantuo Formation in NW Hunan province. Lithologic Reservoirs, 2017, 29(4):47-54.
[40] 胡方杰, 张殿伟, 田海芹.川北秦岭地区震旦-寒武纪岩相古地理研究新认识.沉积学报, 2014, 32(1):1-7. HU F J, ZHANG D W, TIAN H Q. New views on the lithofacies palaeogeography of northern Sichuan Basin and Qinling area during the Sinian-Cambrian. Acta Sedimentologica Sinica, 2014, 32(1):1-7.
[41] 张力, 张淮先.大巴山前缘震旦系及下古生界含油气条件探讨.天然气工业, 1993, 13(1):42-48. ZHANG L, ZHANG H X. A discussion on oil and gas bearing conditions of Sinian and Lower Paleozoic on Dabashan Mountain frontal border. Natural Gas Industry, 1993, 13(1):42-48.
[42] 王坤明, 王宗起, 张英利, 等.北大巴山滔河镁铁质岩中钛闪石的厘定及指示意义.岩石矿物学杂志, 2016, 35(3):506-510. WANG K M, WANG Z Q, ZHANG Y L, et al. Determination of kaersutite and its implication for mafic rock in Taohe area, north Dabashan. Acta Petrologica et Mineralogica, 2016, 35(3):506-510.
[43] 王刚.北大巴山紫阳-岚皋地区古生代火山岩浆事件与中生代成矿作用.北京:中国地质大学(北京), 2014. WANG G. Metallogeny of the Mesozoic and Paleozoic volcanic igneous event in Ziyang-Langao areas, north Dabashan. Beijing:China University of Geosciences(Beijing), 2014.
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[6] 韩春元，赵贤正，金凤鸣，王权，李先平，王素卿. 二连盆地地层岩性油藏“多元控砂—四元成藏—主元富集”与勘探实践（IV）——勘探实践[J]. 岩性油气藏, 2008, 20(1): 15 -20 .
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