Depositional model of the lower-middle Ordovician Majiagou Formation in Daniudi Gas Field,Ordos Basin
Lei Tao1, Deng Hu-Cheng2,3, Wu Dong2,3, Fu Mei-Yan2,3, Tang Ming-Yuan1, Cui Lu1, Ding Xiao-Qi2,3, Xia Yu2,3, Xie Xin-Hui2,3
1 Exploration & Development Research Institute of North China Oil and Gas Company,SINOPEC,Zhengzhou 450000,China; 2 State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu 610059,China; 3 College of Energy,Chengdu University of Technology,Chengdu 610059,China
Abstract：Carbonate rocks are the important Paleozoic oil and gas reservoirs in the Ordos Basin. Based on the comprehensive analyses of core and thin section and logging data,the depositional subfacies,including evaporation platform,open platform and confined platform,were identified in the lower-middle Ordovician Majiagou Formation of the Daniudi Gas Field in the Ordos Basin. The characteristics of different depositional subfacies were analyzed in detail,and the depositional model of the lower-middle Majiagou Formation in the Daniudi Gas Field controlled by sea level fluctuation was established. The sea level was relatively low during the depositional period of the Members 1-3 of the Majiagou Formation,resulting in the development of evaporation platform. The saline lake of the Members 1 and 3 of the Majiagou Formation was mainly distributed in the southeast with the gypseous lake around it. The sea level rose slightly during the depositional period of the Member 2 of the Majiagou Formation,and subsequently muddy-dolomitic flat and gypseous-dolomitic flat developed in the entire study area from bottom to top. The open platform was developed in the Member 4 of the Majiagou Formation when the sea level reached the maximum,and uniformly distributed lime flat and overlying dolomitic-lime flat covered the whole area in the platform. The confined platform predominated the Member 5 of the Majiagou Formation during the regression-transgression-regression. In the Member 5 of the Majiagou Formation,the dolomitic flat of the 7th-10th sub-members covered the whole area,the large extent of muddy-dolomitic flat expanded from northwest to southeast in the 6th sub-member,and the lime flat of the 5th sub-member was developed in the central part with the scattered dolomitic flat around it.
Lei Tao,Deng Hu-Cheng,Wu Dong et al. Depositional model of the lower-middle Ordovician Majiagou Formation in Daniudi Gas Field,Ordos Basin[J]. JOPC, 2020, 22(3): 523-538.
[1] 白晓亮. 2016. 大牛地气田奥陶系马五5亚段白云岩成因及储层形成机理. 西南石油大学博士学位论文. [Bai X L.2016. Origin of dolomite and dolomite reservoir development in the middle Ordovician $\text{M}_{5}^{5}$ Sub-member platform carbonates in the Daniudi Area,northern Ordos Basin,western China. Doctoral dissertation of Southwest Petroleum University] [2] 包洪平,杨帆,白海峰,武春英,王前平. 2017. 细分小层岩相古地理编图的沉积学研究及油气勘探意义: 以鄂尔多斯地区中东部奥陶系马家沟组马五段为例. 岩石学报, 33(4): 1094-1106. [Bao H P,Yang F,Bai H F,Wu C Y,Wang Q P.2017. Sedimentology study on sub-member lithofacies paleogeography mapping and its petroleum exploration significance: Taking Ma5 member of Lower Ordovician Majiagou Formation in central-eastern Ordos Basin for example. Acta Petrologica Sinica, 33(4): 1094-1106] [3] 邓虎成,周文,郭睿,伏美燕,谢润成,陈文玲,彭先锋,肖睿. 2014. 伊拉克艾哈代布油田中—下白垩统碳酸盐岩储层孔隙结构及控制因素. 岩石学报, 30(3): 801-812. [Deng H C,Zhou W,Guo R,Fu M Y,Xie R C,Chen W L,Peng X F,Xiao R.2014. Pore structure characteristics and control factors of carbonate reservoirs: The Middle-Lower Cretaceous formation,AI Hardy cloth Oilfield,Iraq. Acta Petrologica Sinica, 30(3): 801-812] [4] 冯增昭. 2004. 单因素分析多因素综合作图法: 定量岩相古地理重建. 古地理学报, 6(1): 3-19. [Feng Z Z.2004. Single factor analysis and multifactor comprehensive mapping method: Reconstruction of quantitative lithofacies palaeogeography. Journal of Palaeogeography(Chinese Edition), 6(1): 3-19] [5] 冯增昭,鲍志东. 1999. 鄂尔多斯奥陶纪马家沟期岩相古地理. 沉积学报, 17(1): 1-8. [Feng Z Z,Bao Z D.1999. Lithofacies paleogeography of Majiagou Age of Ordovician in Ordos Basin. Acta Sedimentologica Sinica, 17(1): 1-8] [6] 付金华,李士祥,刘显阳,邓秀芹. 2012. 鄂尔多斯盆地上三叠统延长组长9油层组沉积相及其演化. 古地理学报, 14(3): 269-284. [Fu J H,Li S X,Liu X Y,Deng X Q.2012. Sedimentary facies and its evolution of the Chang 9 interval of Upper Triassic Yanchang Formation in Ordos Basin. Journal of Palaeogeography(Chinese Edition), 14(3): 269-284] [7] 付金华,吴兴宁,孙六一,于洲,黄正良,丁振纯. 2017. 鄂尔多斯盆地马家沟组中组合岩相古地理新认识及油气勘探意义. 天然气工业, 37(3): 9-16. [Fu J H,Wu X N,Sun L Y,Yu Z,Huang Z L,Ding Z C.2017. New understandings of the lithofacies paleogeography of the middle assemblage of Majiagou Fm in the Ordos Basin and its exploration significance. Natural Gas Industry, 37(3): 9-16] [8] 付斯一,张成弓,陈洪德,陈安清,赵俊兴,苏中堂,杨帅,王果,密文天. 2019. 鄂尔多斯盆地中东部奥陶系马家沟组五段盐下白云岩储集层特征及其形成演化. 石油勘探与开发, 46(6): 1087-1098. [Fu S Y,Zhang C G,Chen H D,Chen A Q,Zhao J X,Su Z T,Yang S,Wang G,Mi W T.2019. Characteristics,formation and evolution of pre-salt dolomite reservoirs in the fifth member of the Ordovician Majiagou Formation,mid-east Ordos Basin,NW China. Petroleum Exploration and Development, 46(6): 1087-1098] [9] 郭艳琴,李文厚,郭彬程,张倩,陈强,王若谷,刘溪,马瑶,李智超,张梦婷,李百强. 2019. 鄂尔多斯盆地沉积体系与古地理演化. 古地理学报, 21(2): 293-320. [Guo Y Q,Li W H,Guo B C,Zhang Q,Chen Q,Wang R G,Liu X,Ma Y,Li Z C,Zhang M T,Li B Q.2019. Sedimentary systems and palaeogeography evolution of Ordos Basin. Journal of Palaeogeography(Chinese Edition), 21(2): 293-320] [10] 郭彦如,赵振宇,付金华,徐旺林,史晓颖,孙六一,高建荣,张延玲,张月巧,刘俊榜,刘虹. 2012. 鄂尔多斯盆地奥陶纪层序岩相古地理. 石油学报,33(增刊2): 95-109. [Guo Y R,Zhao Z Y,Fu J H,Xu W L,Shi X Y,Sun L Y,Gao J R,Zhang Y L,Zhang Y Q,Liu J B,Liu H.2012. Sequence lithofacies paleogeography of the Ordovician in Ordos Basin,China. Acta Petrolei Sinica,33(S2): 95-109] [11] 金振奎,石良,高白水,余宽宏. 2013. 碳酸盐岩沉积相及相模式. 沉积学报, 31(6): 965-979. [Jin Z K,Shi L,Gao B S,Yu K H.2013. Carbonate facies and facies models. Acta Sedimentologica Sinica, 31(6): 965-979] [12] 李百强,王起琮,张小莉,魏巍. 2018. 白云岩成岩相与地球化学特征: 以鄂尔多斯盆地中东部马家沟组马五5-马五1亚段为例. 沉积学报, 36(3): 608-616. [Li B Q,Wang Q C,Zhang X L,Wei W.2018. Diagenetic facies and its geochemical characteristics of dolomite: A case study of Ma55-Ma51 Sub-members of Majiagou Formation in central-eastern Ordos Basin. Acta Sedimentologica Sinica, 36(3): 608-616] [13] 林畅松,杨海军,蔡振中,于炳松,陈建强,李浩,芮志峰. 2013. 塔里木盆地奥陶纪碳酸盐岩台地的层序结构演化及其对盆地过程的响应. 沉积学报, 31(5): 907-919. [Lin C S,Yang H J,Cai Z Z,Yu B S,Chen J Q,Li H,Rui Z F.2013. Evolution of depositional architecture of the Ordovician Carbonate platform in the Tarim Basin and its response to basin processes. Acta Sedimentologica Sinica, 31(5): 907-919] [14] 沈安江,赵文智,胡安平,佘敏,陈娅娜,王小芳. 2015. 海相碳酸盐岩储集层发育主控因素. 石油勘探与开发, 42(5): 545-554. [Shen A J,Zhao W Z,Hu A P,She M,Chen Y N,Wang X F.2015. Major factors controlling the development of marine carbonate reservoirs. Petroleum Exploration and Development, 42(5): 545-554] [15] 王果,仲向云,张成弓,方继瑶,李婧娟. 2019. 鄂尔多斯盆地东南部马家沟组上组合沉积微相特征及展布规律. 成都理工大学学报(自然科学版), 46(3): 326-333. [Wang G,Zhong X Y,Zhang C G,Fang J Y,Li J J.2019. Sedimentary microfacies and their distribution law of Majiagou Formation in southeastern Ordos Basin,China. Journal of Chengdu University of Technology(Science & Technology Edition), 46(3): 326-333] [16] 王起琮,张宇,杨奕华,杨伟利,李洁. 2018. 鄂尔多斯盆地马家沟组层序地层与岩相分布. 西北大学学报(自然科学版), 48(4): 568-577. [Wang Q C,Zhang Y,Yang Y H,Yang W L,Li J.2018. Sequence stratigraphic and lithofacies distributions of Majiagou Formation in Ordos Basin. Journal of Northwest University(Natural Science Edition), 48(4): 568-577] [17] 魏新善,陈洪德,张道锋,代榕,郭彦如,陈娟萍,任军峰,柳娜,罗顺社,赵俊兴. 2017. 致密碳酸盐岩储集层特征与天然气勘探潜力: 以鄂尔多斯盆地伊陕斜坡东部奥陶系马家沟组为例. 石油勘探与开发, 44(3): 319-329. [Wei X S,Chen H D,Zhang D F,Dai R,Guo Y R,Chen J P,Ren J F,Liu N,Luo S S,Zhao J X.2017. Gas exploration potential of tight carbonate reservoirs: A case study of Ordovician Majiagou Formation in the eastern Yi-Shan slope,Ordos Basin,NW China. Petroleum Exploration and Development, 44(3): 319-329] [18] 吴冬,朱筱敏,马爱钰,李雨彤,刘自亮,廖纪佳. 2015. 鄂尔多斯盆地合水—塔尔湾地区长6~长10油层组沉积相研究. 中国地质, 42(6): 1822-1836. [Wu D,Zhu X M,Ma A Y,Li Y T,Liu Z L,Liao J J.2015. Sedimentary facies of the Chang 6-Chang 10 intervals in Heshui-Ta'erwan area,Ordos Basin. Geology in China, 42(6): 1822-1836] [19] 吴伟涛,王一,赵靖舟,杨特波,李军,黄正良. 2019. 鄂尔多斯盆地中部奥陶系马家沟组中组合天然气成藏规律. 天然气地球科学, 30(6): 828-839. [Wu W T,Wang Y,Zhao J Z,Yang T B,Li J,Huang Z L.2019. The rule of natural gas accumulation of the mid-assemblage of Ordovician Majiagou Formation in the central Ordos Basin. Natural Gas Geoscience, 30(6): 828-839] [20] 颜佳新,孟琦,王夏,刘志臣,黄恒,陈发垚,郭全鼎. 2019. 碳酸盐工厂与浅水碳酸盐岩台地: 研究进展与展望. 古地理学报, 21(2): 232-253. [Yan J X,Meng Q,Wang X,Liu Z C,Huang H,Chen F Y,Guo Q D.2019. Carbonate factory and carbonate platform: Progress and prospects. Journal of Palaeogeography(Chinese Edition), 21(2): 232-253] [21] 杨华,席胜利,魏新善,李振宏. 2006. 鄂尔多斯多旋回叠合盆地演化与天然气富集. 中国石油勘探, 21(1): 17-24. [Yang H,Xi S L,Wei X S,Li Z H.2006. Evolution and natural gas enrichment of multicycle superimposed basin in Ordos. China Petroleum Exploration, 21(1): 17-24] [22] 于洲,丁振纯,王利花,张道峰,罗超,魏源,郭玮,魏柳斌. 2018. 鄂尔多斯盆地奥陶系马家沟组五段膏盐下白云岩储层形成的主控因素. 石油与天然气地质, 39(6): 1213-1224. [Yu Z,Ding Z C,Wang L H,Zhang D F,Luo C,Wei Y,Guo W,Wei L B.2018. Main factors controlling formation of dolomite reservoir underlying gypsum-salt layer in the 5th member of Ordovician Majiagou Formation,Ordos Basin. Oil & Gas Geology, 39(6): 1213-1224] [23] 张晓涛. 2016. 鄂尔多斯盆地马家沟组碳酸盐岩台地测井沉积相识别研究. 中国石油大学(北京)硕士学位论文. [Zhang X T.2016. The study of characteristics of image logging in identifying carbonatite sedimentary facies in the Ordovician Majiagou Reservoirs of Ordos. Masteral dissertation of China University of Petroleum(Beijing)] [24] 赵文智,沈安江,胡安平,周进高,倪新锋. 2015. 塔里木、四川和鄂尔多斯盆地海相碳酸盐岩规模储层发育地质背景初探. 岩石学报, 31(11): 3496-3508. [Zhao W Z,Shen A J,Hu A P,Zhou J G,Ni X F.2015. A discussion on the geological background of marine carbonate reservoirs development in Tarim,Sichuan and Ordos Basin,China. Acta Petrologica Sinica, 31(11): 3496-3508] [25] 朱筱敏,邓秀芹,刘自亮,孙勃,廖纪佳,惠潇. 2013. 大型坳陷湖盆浅水辫状河三角洲沉积特征及模式: 以鄂尔多斯盆地陇东地区延长组为例. 地学前缘, 20(2): 19-28. [Zhu X M,Deng X Q,Liu Z L,Sun B,Liao J J,Hui X.2013. Sedimentary characteristics and model of shallow braided delta in large-scale lacustrine: An example from Triassic Yanchang Formation in Ordos Basin. Earth Science Frontiers, 20(2): 19-28] [26] 朱筱敏,谈明轩,董艳蕾,李维,秦祎,张自力. 2019. 当今沉积学研究热点讨论: 第20届国际沉积学大会评述. 沉积学报, 37(1): 1-16. [Zhu X M,Tan M X,Dong Y L,Li W,Qin Y,Zhang Z L.2019. Current hot topics of sedimentology: Comment on the 20th International Sedimentological Congress. Acta Sedimentologica Sinica, 37(1): 1-16] [27] Brigaud B,Vincent B,Durlet C,Deconinck J,Jobard E,Pickard N,Yven B,Landrein P.2014. Characterization and origin of permeability-porosity heterogeneity in shallow-marine carbonates: From core scale to 3D reservoir dimension(Middle Jurassic,Paris Basin,France). Marine and Petroleum Geology, 57: 631-651. [28] Chaabane N B,Khemiri F,Soussi M,Latil J,Robert E,Belhajtaher Ⅰ.2019. Aptian-Lower Albian Serdj carbonate platform of the Tunisian Atlas: Development,demise and petroleum implication. Marine and Petroleum Geology, 101: 566-591. [29] Daraei M,Rahimpour-Bonab H,Fathi N.2014. Factors shaping reservoir architecture in the Jurassic Arab carbonates: A case from the Persian Gulf. Journal of Petroleum Science and Engineering, 122: 187-207. [30] Dunham R J.1962. Classification of carbonates rocks according to depositional texture. AAPG Memoir, 23(1): 108-121. [31] Menier D,Pierson B,Chalabi A,Ting K K,Pubellier M.2014. Morphological indicators of structural control,relative sea-level fluctuations and platform drowning on present-day and miocene carbonate platforms. Marine and Petroleum Geology, 58: 776-788. [32] Phelps R M,Kerans C,Loucks R G,Da Gama R O B P,Jeremiah J,Hull D.2014. Oceanographic and eustatic control of carbonate platform evolution and sequence stratigraphy on the cretaceous(Valanginian-Campanian)passive margin,northern Gulf of Mexico. Sedimentology, 61: 461-496. [33] Schmoker J W,Halley R B.1982. Carbonate porosity versus depth: A predictable relation for south Florida. AAPG Bulletin, 66: 2561-2570. [34] Wannier M.2009. Carbonate platforms in wedge-top basins: An example from the Gunung Mulu National Park,Northern Sarawak(Malaysia). Marine and Petroleum Geology, 26: 177-207.
