Sedimentary characteristics and sedimentary models of the Lower Permian Taiyuan Formation limestone in mid-eastern Ordos Basin
HUANG Yougen1,2, XU Jie3,4, ZHENG Xiaopeng1,2, LIU Yan1,2, ZHONG Shoukang3,4, LI Lin3,4, ZHANG Daofeng1,2, TAN Xiucheng3,4
1 Research institute of Exploration and Development,PetroChina Changqing Oilfield Company,Xi'an 710018,China; 2 National Engineering Laboratory for Exploration and Development of Low-permeability Oil & Gas Fields,Xi'an 710018,China; 3 State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China; 4 Research Branch of Southwest Petroleum University,Key Laboratory of Carbonate Reservoir,CNPC,Chengdu 610500,China
Abstract The Taiyuan Formation limestone is extensively distributed in the central and eastern parts of the Ordos Basin,with successful gas flow tests conducted in several wells. It has significant exploration potential and has gained increasingly attention in recent years. However,research on the sedimentary microfacies types and sedimentary modes of Taiyuan Formation limestone in the central and eastern parts of the basin remains undeveloped. Based on a detailed analysis of numerous drilling cores,thin sections,and well logging data from the Taiyuan Formation limestone in the central and eastern parts of the basin,the sedimentary characteristics and sedimentary processes were examined,including rock types,sedimentary facies,typical sedimentary sequences and sedimentary modes. The results indicate that the rocks of Taiyuan Formation in the central and eastern parts of the Ordos Basin can be classified into three categories: marine carbonates,peperite and terrigenous clastic rocks,which can be further subdivided into 15 types. The marine carbonate platform facies can be further categorized into seven sedimentary microfacies,including clastic beach,interbeach sea,supratidal zone(mud flat)and intertidal zone(mud flat). Six typical sequences in the transition environment from land to sea were identified based on detailed characterization of strata section. Sequences 1,2 and 3 consist of marine carbonate sedimentary sequences,and sequences 4,5 and 6 are composed of continental delta sedimentary sequences. The comprehensive analysis indicates that the Lower Permian Taiyuan Formation in the Ordos Basin underwent sedimentary evolution from a continental delta(clastic deposits)to a marine continental transition(mixed deposits)to a marine carbonate platform(carbonate deposits). Influenced by the sedimentary landform,the overall sedimentary filling pattern is characterized by “sandstone in the north and limestone in the south,overlaid with peat”. The research findings not only enhance the understanding of the sedimentary geology of Taiyuan Formation in the central and eastern parts of the Ordos Basin,but also establish an important theoretical doundation for the subsequent exploration of natural gas in the Taiyuan Formation.
Fund:Co-funded by the Science and Technology Cooperation Project of PetroChina?Southwest Petroleum University Innovation Consortium(No.2020CX010300)and China National Petroleum Corporation Upstream Field Basic Forward?Looking Project(No.2021DJ0501)
Corresponding Authors:
TAN Xiucheng,born in 1970,professor, is mainly engaged in researches on sedimentology and reservoir geology. E-mail: tanxiucheng70@163.com.
About author: HUANG Yougen,born in 1980,senior engineer,is mainly engaged in comprehensive research on oil and gas geology. E-mail: hyg_cq@petrochina.com.cn.
Cite this article:
HUANG Yougen,XU Jie,ZHENG Xiaopeng et al. Sedimentary characteristics and sedimentary models of the Lower Permian Taiyuan Formation limestone in mid-eastern Ordos Basin[J]. JOPC, 2024, 26(4): 911-925.
HUANG Yougen,XU Jie,ZHENG Xiaopeng et al. Sedimentary characteristics and sedimentary models of the Lower Permian Taiyuan Formation limestone in mid-eastern Ordos Basin[J]. JOPC, 2024, 26(4): 911-925.
[1] 曹晋璐,刘之的,何福文,刘晓鹏,邓卫斌. 2022. 鄂尔多斯盆地中东部太原组灰岩成藏地质条件分析. 石油地质与工程, 36(2): 41-47,53. [Cao J L,Liu Z D,He F W,Liu X P,Deng W B.2022. Analysis of limestone reservoir forming geological conditions of Taiyuan Formation in central and eastern Ordos Basin. Petroleum Geology and Engineering, 36(2): 41-47,53] [2] 董国栋,刘新社,裴文超,付勋勋,曾旭,张道锋,赵小会. 2023. 鄂尔多斯盆地二叠系太原组致密灰岩储层特征及主控因素. 天然气地球科学, 34(6): 1018-1027. [Dong G D,Liu X S,Pei W C,Fu X X,Zeng X,Zhang D F,Zhao X H.2023. Characteristics and main controlling factors of tight limestone reservoir in Taiyuan Formation of Ordos Basin. Natural Gas Geoscience, 34(6): 1018-1027] [3] 付金华. 2023. 鄂尔多斯盆地太原组致密灰岩天然气成藏地质特征与勘探潜力. 地学前缘, 30(1): 20-29. [Fu J H.2023. Accumulation characteristics and exploration potential of tight limestone gas in the Taiyuan Formation of the Ordos Basin. Earth Science Frontiers, 30(1): 20-29] [4] 高青松. 2018. 大牛地气田石炭系太原组沉积相类型再分析. 石油地质与工程, 32(6): 1-5,11,116. [Gao Q S.2018. Reanalysis of sedimentary facies types of Carboniferous Taiyuan formation in Daniudi gas field. Petroleum Geology and Engineering, 32(6): 1-5,11,116] [5] 郭艳琴,赵灵生,郭彬程,费世祥,李文厚,张倩,袁珍,马瑶,何子琼,李百强. 2021. 鄂尔多斯盆地及周缘地区下二叠统沉积特征. 古地理学报, 23(1): 65-80. [Guo Y Q,Zhao L S,Guo B C,Fei S X,Li W H,Zhang Q,Yuan Z,Ma Y,He Z Q,Li B Q.2021. Sedimentary characteristics of the Lower Permian in Ordos Basin and its adjacent areas. Journal of Palaeogeography(Chinese Edition), 23(1): 65-80] [6] 侯明才,李旭,邓敏. 2011. 鄂尔多斯盆地环县地区三叠系长8-长6油层组沉积相特征. 成都理工大学学报(自然科学版), 38(3): 241-248. [Hou M C,Li X,Deng M.2011. Study on the sedimentary environment of Chang 8-6 oil-bearing formations of Yanchang Formation in Huanxian area,Ordos Basin. Journal of Chengdu University of Technology(Science & Technology Edition), 38(3): 241-248] [7] 胡斌,胡磊,宋慧波,杨连超. 2013. 晋东南上石炭统—下二叠统太原组灰岩中遗迹组合及其沉积环境. 古地理学报, 15(6): 809-818. [Hu B,Hu L,Song H B,Yang L C.2013. Lchnoassemblages and their sedimentary environments in limestone of the Upper Carboniferous-Lower Permian Taiyuan Formation,southeastern Shanxi Province. Journal of Palaeogeography(Chinese Edition), 15(6): 809-818] [8] 李妍蓉,李靖,苏文杰,石磊,孙睿,朱玉双. 2023. 鄂尔多斯盆地伊陕斜坡太原组碳酸盐岩气藏富集规律. 新疆石油地质, 44(5): 509-516. [Li Y R,Li J,Su W J,Shi L,Sun R,Zhu Y S.2023. Natural gas enrichment in carbonate gas reservoirs of Taiyuan Formation in Yishaan slope,Ordos Basin. Xinjiang Petroleum Geology, 44(5): 509-516] [9] 刘新社,张涛,黄道军,董国栋,王康乐,付勋勋,赵小会,卢子兴,于洲,荆雪媛,张君莹. 2023. 鄂尔多斯盆地中东部太原组石灰岩天然气勘探新突破及勘探方向. 天然气工业, 43(5): 1-11. [Liu X S,Zhang T,Huang D J,Dong G D,Wang K L,Fu X X,Zhao X H,Lu Z X,Yu Z,Jing X Y,Zhang J Y.2023. New breakthrough in and direction of natural gas exploration in Taiyuan Formation limestone in the central and eastern Ordos Basin. Natural Gas Industry, 43(5): 1-11] [10] 毛亚辉. 2020. 鄂尔多斯盆地东缘早二叠世太原组沉积特征及岩相古地理研究. 中国地质大学(北京)硕士学位论文. [Mao Y H.2020. Study on sedimentary characteristics and lithofacies palaeogeography of Early Permian Taiyuan Formation in the eastern Ordos Basin. Masteral dissertation of China University of Geosciences(Beijing)] [11] 牟春国,许杰,古永红,贾建鹏,王文雄,谭秀成. 2023. 鄂尔多斯盆地中东部奥陶系马家沟组四段储层特征及主控因素. 石油实验地质, 45(4): 780-790. [Mou C G,Xu J,Gu Y H,Jia J P,Wang W X,Tan X C.2023. Reservoir characteristics and main controlling factors of the fourth member of Ordovician Majiagou Formation in the central and eastern Ordos Basin. Petroleum Geology & Experiment, 45(4): 780-790] [12] 宋慧波,毕瑜珺,胡斌. 2017. 豫西下二叠统太原组遗迹化石与古氧相的响应特征. 古地理学报, 19(4): 653-662. [Song H B,Bi Y J,Hu B.2017. Responding characteristics between ichnofossils and palaeo-oxygen facies in the Lower Permian Taiyuan Formation of western Henan Province. Journal of Palaeogeography(Chinese Edition), 19(4): 653-662] [13] 宋慧波,黄志伟,胡斌,李娟,郑锋利,安红亮. 2020. 豫西禹州地区太原组旋回沉积与海平面变化特征. 地质学报, 94(12): 3790-3802. [Song H B,Huang Z W,Hu B,Li J,Zheng F L,An H L.2020. Characteristics of cyclic deposition and sea level changes of the Taiyuan Formation in Yuzhou City of western Henan Province. Acta Geologica Sinica, 94(12): 3790-3802] [14] 宋慧波,张彬,于振锋,金毅,胡斌,牛永斌,张立军. 2023. 鄂尔多斯盆地东缘太原组风暴沉积特征及环境模式. 沉积学报: 1-19. https: //doi.org/10.14027/j.issn.1000-0550.2023.020. [Song H B,Zhang B,Yu Z F,Jin Y,Hu B,Niu Y B,Zhang L J.2023. Storm Deposit Characteristics and their Environmental Model in the Taiyuan Formation on the Eastern Margin of the Ordos Basin. Acta Sedimentologica Sinica: 1-19. https: //doi.org/10.14027/j.issn. 1000-0550.2023.020] [15] 席胜利,熊鹰,刘显阳,雷晶超,刘明洁,刘灵,刘耘,文汇博,谭秀成. 2017. 鄂尔多斯盆地中部奥陶系马五盐下沉积环境与海平面变化. 古地理学报, 19(5): 773-790. [Xi S L,Xiong Y,Liu X Y,Lei J C,Liu M J,Liu L,Liu Y,Wen H B,Tan X C.2017. Sedimentary environment and sea level change of the subsalt interval of Member 5 of Ordovician Majiagou Formation in central Ordos Basin. Journal of Palaeogeography(Chinese Edition), 19(5): 773-790] [16] 席胜利,李明瑞,赵伟波,付勋勋,祖凯,赵小会,刘晓鹏,裴文超,高星,周国晓,陈娟萍. 2023a. 鄂尔多斯盆地横山大型气田成藏条件及勘探开发关键技术. 石油学报, 44(6): 1015-1028. [Xi S L,Li M R,Zhao W B,Fu X X,Zu K,Zhao X H,Liu X P,Pei W C,Gao X,Zhou G X,Chen J P.2023a. Accumulation conditions,key exploration and development technologies of large-scale Hengshan gas field in Ordos Basin. Acta Petrolei Sinica, 44(6): 1015-1028] [17] 席胜利,刘新社,任军峰,刘刚,张才利,惠潇,赵伟波,王红伟,井向辉,董国栋,魏嘉怡,李涵. 2023b. 鄂尔多斯盆地风险勘探领域油气成藏认识新进展与勘探潜力. 中国石油勘探, 28(3): 34-48. [Xi S L,Liu X S,Ren J F,Liu G,Zhang C L,Hui X,Zhao W B,Wang H W,Jing X H,Dong G D,Wei J Y,Li H.2023b. New understanding of hydrocarbon accumulation and exploration potential in risk exploration field in Ordos Basin. China Petroleum Exploration, 28(3): 34-48] [18] 向念. 2020. 鄂尔多斯盆地东缘康宁区太原组层序地层划分方案. 石化技术, 27(3): 87,93. [Xiang N.2020. Sequence stratigraphic division scheme of Taiyuan Formation in Kangning District,eastern margin of Ordos Basin. Petrochemical Industry Technology, 27(3): 87,93] [19] 谢康,谭秀成,冯敏,王保保,钟寿康,杨梦颖,聂万才,乔占峰,曾伟. 2020. 鄂尔多斯盆地苏里格气田东区奥陶系马家沟组早成岩期岩溶及其控储效应. 石油勘探与开发, 47(6): 1159-1173. [Xie K,Tan X C,Feng M,Wang B B,Zhong S K,Yang M Y,Nie W C,Qiao Z F,Zeng W.2020. Eogenetic karst and its control on reservoirs in the Ordovician Majiagou Formation,eastern Sulige gas field,Ordos Basin,NW China. Petroleum Exploration and Development, 47(6): 1159-1173] [20] 熊鹰,李凌,文彩霞,侯云东,肖笛,钟原,聂万才,曹剑,谭秀成. 2016. 鄂尔多斯盆地东北部奥陶系马五1+2储层特征及成因. 石油与天然气地质, 37(5): 691-701. [Xiong Y,Li L,Wen C X,Hou Y D,Xiao D,Zhong Y,Nie W C,Cao J,Tan X C.2016. Characteristics and genesis of Ordovician Ma51+2 sub-member reservoir in northeastern Ordos Basin. Oil & Gas Geology, 37(5): 691-701] [21] 许杰,肖笛,苏文杰,晏巍,钟寿康,杨鸣一,杨梦颖,谭秀成. 2022. 鄂尔多斯盆地东缘奥陶系马家沟组四段豹斑状云质灰岩特征及成因: 以关家崖剖面为例. 古地理学报, 24(2): 261-277. [Xu J,Xiao D,Su W J,Yan W,Zhong S K,Yang M Y,Yang M Y,Tan X C.2022. Characteristics and genesis of leopard-spotted dolomitic limestone in the Member 4 of Ordovician Majiagou Formation: a case study from Guanjiaya section in eastern margin of Ordos Basin. Journal of Palaeogeography(Chinese Edition), 24(2): 261-277] [22] 张月,祝彦贺,邵龙义,王存武,朱学申,刘芬,康世龙,郑丽婧,陈思路,陈朝晖. 2023. 陆表海高分辨率层序地层格架下的聚煤模式: 以沁水盆地南部柿庄地区太原组为例. 东北石油大学学报, 47(4): 82-94,10. [Zhang Y,Zhu Y H,Shao L Y,Wang C W,Zhu X S,Liu F,Kang S L,Zheng L J,Chen S L,Chen Z H.2023. Coal accumulation model of epicontinental sea in high-resolution sequence stratigraphic framework: a case study of Taiyuan Formation in southern Qinshui Basin. Journal of Northeast Petroleum University, 47(4): 82-94,10] [23] 赵剑. 2021. 鄂尔多斯盆地西缘太原组沉积特征. 石化技术, 28(10): 138-139. [Zhao J.2021. Sedimentary characteristics of Taiyuan Formation in the western margin of Ordos Basin. Petrochemical Industry Technology, 28(10): 138-139] [24] 周进高,席胜利,任军峰,尹陈,吴东旭,丁振纯,李维岭,刘雨昕. 2021. 鄂尔多斯盆地米脂地区奥陶系马四段沉积新认识与有利储集相带. 天然气工业, 41(12): 28-37. [Zhou J G,Xi S L,Ren J F,Yin C,Wu D X,Ding Z C,Li W L,Liu Y X.2021. New understanding of the sedimentation of the 4th Member of Ordovician Majiagou Formation in the Mizhi area of the Ordos Basin and its favorable reservoir facies belts. Natural Gas Industry, 41(12): 28-37] [25] Flügel E.2010. Microfacies of Carbonate Rocks: Analysis,Interpretation and Application. Beilin, Heidelberg: Springer Verlay,1-976. [26] Peng Y X,Guo S B.2023. Lithofacies analysis and paleosedimentary evolution of Taiyuan Formation in Southern North China Basin. Journal of Petroleum Science and Engineering, 220: 111127. [27] Wang H,Zhang L,Zhao Q,Qiu Z,Liu D,Zhang Q,Wang Y,Dong D.2021. Reservoir characteristics of the Lower Permian marine-continental transitional shales: example from the Shanxi Formation and Taiyuan Formation in the Ordos Basin. Geofluids, 2021: 9373948. [28] Xiao D,Tan X C,Zhang D F,He W,Li L,Shi Y H,Chen J P,Cao J.2019. Discovery of syngenetic and eogenetic karsts in the Middle Ordovician gypsum-bearing dolomites of the eastern Ordos Basin(central China)and their heterogeneous impact on reservoir quality. Marine and Petroleum Geology, 99: 190-207. [29] Xiong Y,Tan X C,Zuo Z F,Zou G L,Liu M J,Liu Y,Liu L,Xiao D,Zhang J.2019. Middle Ordovician multi-stage penecontemporaneous karstification in North China: implications for reservoir genesis and sea level fluctuations. Journal of Asian Earth Sciences, 183: 103969.
