四川盆地东南缘二叠系茅口组一段页岩气藏地质特征及富集模式

doi:10.11743/ogg20210113

Abstract

Abstract:

To understand the shale gas reservoirs in the first member of the Permian Maokou Formation (Mao 1 Member) in the southeastern margin of Sichuan Basin (southeastern Sichuan Basin), we combined outcrop and core observation, mineralogical and geochemical data, thin section analysis and scanning electron microscopic results of argon ion beam cross sections, with logging and seismic attribute prediction techniques to study their sedimentary facies, source rocks, reservoir properties and types.The geological characteristics and gas enrichment pattern of the Mao 1 Member shale were revealed and summarized as: (1) The member is located in the relatively deep-water gentle slope of a carbonate platform and comprised of well-developed dark gray-gray black carbonaceous mudstone, calcareous mudstone, argillaceous limestone and bioclastic limestone.The carbonaceous and calcareous mudstone, among others, with relatively high TOC (0.5%-5.1%) and moderate thermal maturity (R_o: 2.0-2.3), are potential hydrocarbon source rocks with possible new-type atypical shale gas.(2) The reservoir space in the member including organic matter pores, dissolution pores, grain boundary fractures, and constricted fissures, may form a reservoir complex of "pore-fracture-network".The carbonaceous mudstone and calcareous mudstone are dominated by organic matter pores, clay mineral shrinkage cracks and bedding-parallel fractures, while argillaceous limestone and bioclastic limestone mainly develop dissolution pores, grain boundary fractures, contraction fissures and high-angle cracks.(3) The shale gas enrichment in the member can be generally described as "integrated continuous source-reservoir assemblages controlled dually by structures and fractures", and results in an estimated geological resource volume of more than 500 BCM continuously distributed in an area of more than 7 000 km².It therefore has great exploration potential for shale gas.The research results are of great significance to improving the understanding of the new-type shale gas geology and guiding the shale gas exploration in southeastern Sichuan Basin.

Key words: geological characteristics, enrichment pattern, resource potential, Mao 1 Member, the Permian, shale gas, Southeast Sichuan Basin

CLC Number:

TE122.1

Peixian Zhang, Xipeng He, Quanfang Gao, Yuqiao Gao, Bin Sun, Xiao Cai, Guisong He, Zhiping Zhang, Nana Liu. Geological characteristics and enrichment pattern of Permian Mao 1 Member shale gas reservoirs at the southeastern margin of Sichuan Basin[J]. Oil & Gas Geology, 2021, 42(1): 146-157.

Figures/Tables 12

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Fig.11

Fig.12

References 35

1	马永生, 何登发, 蔡勋育, 等. 中国海相碳酸盐岩的分布及油气地质基础问题[J]. 岩石学报, 2017, 33 (4): 1007- 1026.
	Ma Yongsheng , He Dengfa , Cai Xunyu , et al. Distribution and fundamental science questions for petroleum geology of marine carbonate in China[J]. Acta Petrologica Sinica, 2017, 33 (4): 1007- 1026.
2	张健, 周刚, 张光荣, 等. 四川盆地中二叠统天然气地质特征与勘探方向[J]. 天然气工业, 2018, 38 (1): 10- 20.
	Zhang Jian , Zhou Gang , Zhang Guangrong , et al. Geological characteri-stics and exploration orientation of Mid-Permian natural gas in the Sichuan Basin[J]. Natural Gas Industry, 2018, 38 (1): 10- 20.
3	汪泽成, 江青春, 黄士鹏, 等. 四川盆地中二叠统茅口组天然气大面积成藏的地质条件[J]. 天然气工业, 2018, 38 (1): 30- 38.
	Wang Zecheng , Jiang Qingchun , Huang Shipeng , et al. Geological conditions for massive accumulation of natural gas in the Mid-Permian Maokou Fm of the Sichuan Basin[J]. Natural Gas Industry, 2018, 38 (1): 30- 38.
4	黄士鹏, 江青春, 冯庆付, 等. 川南地区中二叠统茅口组岩溶储集层类型与分布规律[J]. 石油勘探与开发, 2019, 46 (2): 281- 289.
	Huang Shipeng , Jiang Qingchun , Feng Qingfu , et al. Type and distribution of Mid-Permian Maokou Formation karst reservoirs in southern Sichuan Basin, SW China[J]. Petroleum Exploration and Development, 2019, 46 (2): 281- 289.
5	胡东风. 四川盆地元坝地区茅口组台缘浅滩天然气勘探的突破与启示[J]. 天然气工业, 2020, 39 (3): 99- 110.
	Hu Dongfeng . Breakthrough in natural gas exploration in the platform margin shoal at the Maokou Fm in the Yuanba area, Sichuan Basin, and its implications[J]. Natural Gas Industry, 2020, 39 (3): 99- 110.
6	王珏博, 谷一凡, 陶艳忠, 等. 川中地区茅口组两期流体叠合控制下的白云石化模式[J]. 沉积学报, 2016, 34 (2): 236- 248.
	Wang Jue Bo , Gu YiFan , Tao Yan Zhong , et al. The model of dolomitization jointly controlled by two-episode fluids in Maokou Formation in central Sichuan Basin[J]. Acta Sedimentologica Sinica, 2016, 34 (2): 236- 248.
7	唐雪松, 谭秀成, 刘宏, 等. 四川盆地东部中二叠统茅口组白云岩及云质硅岩储层特征与发育规律[J]. 石油与天然气地质, 2016, 37 (5): 731- 743.
	Tang Xuesong , Tan Xiucheng , Liu Hong , et al. Characteristics and development mechanism of dolomite and dolomitic quartzitereservoirs of the Middle Permian Maokou Formation in eastern Sichuan Basin[J]. Oil & Gas Geology, 2016, 37 (5): 731- 743.
8	胡安平, 潘立银, 郝毅, 等. 四川盆地二叠系栖霞组、茅口组白云岩储层特征、成因和分布[J]. 海相油气地质, 2018, 23 (2): 39- 52. doi: 10.3969/j.issn.1672-9854.2018.02.006
	Hu Anping , Pan Liyin , Hao Yi , et al. Origin, Characteristics and distribution of dolostone reservoir in Qixia Formation and Maokou Formation, Sichuan Basin, China[J]. Marine Origin Petroleum Geology, 2018, 23 (2): 39- 52. doi: 10.3969/j.issn.1672-9854.2018.02.006
9	张涛, 林娟华, 韩月卿, 等. 四川盆地东部中二叠统茅口组热液白云岩发育模式及对储层的改造[J]. 石油与天然气地质, 2020, 41 (1): 132- 143.
	Zhang Tao , Lin Juanhua , Han Yueqing , et al. Pattern of hydrothermal dolomitization in the Middle Permian Maokou Formation, eastern Sichuan Basin, and its alteration on reservoirs herein[J]. Oil & Gas Geology, 2020, 41 (1): 132- 143.
10	杨天博, 何治亮, 金振奎, 等. 川西北中二叠统超深层白云岩储层孔隙结构及控制因素[J]. 石油与天然气地质, 2020, 41 (1): 116- 131.
	Yang Tianbo , He Zhiliang , Jin Zhenkui , et al. Pore structure and controlling factors of the ultra-deep Middle Permian dolomite reservoirs, northwestern Sichuan Basin[J]. Oil & Gas Geology, 2020, 41 (1): 116- 131.
11	张金川, 金之钧, 袁明生. 页岩气成藏机理和分布[J]. 天然气工业, 2004, 24 (7): 15- 18. doi: 10.3321/j.issn:1000-0976.2004.07.005
	Zhang Jinchuan , Jin Zhijun , Yuan Mingsheng . Reservoiring mechanism of shale gas and its distribution[J]. Natural Gas Industry, 2004, 24 (7): 15- 18. doi: 10.3321/j.issn:1000-0976.2004.07.005
12	聂海宽, 金之钧, 边瑞康, 等. 四川盆地及其周缘上奥陶统五峰组-下志留统龙马溪组页岩气"源-盖控藏"富集[J]. 石油学报, 2016, 37 (5): 557- 571.
	Nie Haikuang , Jin Zhijun , Bian Ruikang , et al. The "source-cap hydrocarbon-controlling" enrichment of shale gas in Upper Ordovician Wufeng Formation-Lower Silurian Longmaxi Formation of Sichuan Basin and its periphery[J]. Acta Petrolei Sinica, 2016, 37 (5): 557- 571.
13	朱彤, 胡宗全, 刘忠宝, 等. 四川盆地湖相页岩气源-储配置类型及评价[J]. 石油与天然气地质, 2018, 39 (6): 1146- 1153.
	Zhu Tong , Hu Zongquan , Liu Zhongbao , et al. Types and evaluation of the source-reservoir configuration of lacustrine shale gas in the Sichuan Basin[J]. Oil & Gas Geology, 2018, 39 (6): 1146- 1153.
14	聂海宽, 张柏桥, 刘光祥, 等. 四川盆地五峰组-龙马溪组页岩气高产地质原因及启示--以涪陵页岩气田JY6-2HF为例[J]. 石油与天然气地质, 2020, 41 (3): 463- 473.
	Nie Haikuan , Zhang Baiqiao , Liu Guangxiang , et al. Geological factors contributing to high shale gas yield in the Wufeng-Longmaxi Fms of Sichuan Basin: A case study of Well JY6-2HF in Fuling shale gas field[J]. Oil & Gas Geology, 2020, 41 (3): 463- 473.
15	郝毅, 姚倩颖, 田瀚, 等. 四川盆地二叠系茅口组沉积特征及储层主控因素[J]. 海相油气地质, 2020, 25 (3): 202- 209.
	Hao Yi , Yao Qianying , Tian Han , et al. Sedimentary characteristics and reservoir-controlling factors of the Permian Maokou Formation in Sichuan Basin[J]. Marine Origin Petroleum Geology, 2020, 25 (3): 202- 209.
16	罗鹏, 李国蓉, 施泽进, 等. 川东南地区茅口组层序地层及沉积相浅析[J]. 岩性油气藏, 2010, 22 (2): 74- 78. doi: 10.3969/j.issn.1673-8926.2010.02.013
	Luo Peng , Li Guorong , Shi Zejin , et al. Analysis of sequence stratigraphy and sedimentary facies of Maokou Formation in southeasternSichuan[J]. Lithologic Reservoirs, 2010, 22 (2): 74- 78. doi: 10.3969/j.issn.1673-8926.2010.02.013
17	李大军, 陈辉, 陈洪德, 等. 四川盆地中二叠统茅口组储层形成与古构造演化关系[J]. 石油与天然气地质, 2016, 37 (5): 756- 763.
	Li Dajun , Chen Hui , Chen Hongde , et al. Relationship between reservoir development in the Middle Permian Maokou Formation and pa-leostructure evolution in the Sichuan Basin[J]. Oil & Gas Geology, 2016, 37 (5): 756- 763.
18	胡明毅, 胡忠贵, 魏国齐, 等. 四川盆地茅口组层序岩相古地理特征及储集层预测[J]. 石油勘探与开发, 2012, 39 (1): 45- 55.
	Hu Mingyi , Hu Zhonggui , Wei Guoqi , et al. Sequence lithofacies paleogeography and reservoir prediction of the Maokou Formation in Sichuan Basin[J]. Petroleum Exploration and Development, 2012, 39 (1): 45- 55.
19	黄先平, 杨天泉, 张红梅. 四川盆地下二叠统沉积相及其勘探潜力区研究[J]. 天然气工业, 2004, 24 (1): 10- 12. doi: 10.3321/j.issn:1000-0976.2004.01.004
	Huang Xianping , Yang Tianquan , Zhang Hongmei . Research on the sedimentary facies and exploration potentialareas of Lower Permian in Sichuan Basin[J]. Natural Gas Industry, 2004, 24 (1): 10- 12. doi: 10.3321/j.issn:1000-0976.2004.01.004
20	黎荣, 胡明毅, 杨威, 等. 四川盆地中二叠统沉积相模式及有利储集体分布[J]. 石油与天然气地质, 2019, 40 (2): 369- 379.
	Li Rong , Hu Mingyi , Yang Wei , et al. Sedimentary facies model and favorable reservoir distribution of the Middle Permian in Sichuan Basin[J]. Oil & Gas Geology, 2019, 40 (2): 369- 379.
21	梁狄刚, 郭彤楼, 陈建平, 等. 中国南方海相生烃成藏研究的若干新进展(一)--南方四套区域性海相烃源岩的分布[J]. 海相油气地质, 2008, 13 (2): 1- 16. doi: 10.3969/j.issn.1672-9854.2008.02.001
	Liang Digang , Guo Tonglou , Chen Jianping , et al. Some progresses on studies of hydrocarbon generation and accumulation in marine sedimentary regions, southern China (Part 1): Distribution of four suits of regional marine source rocks[J]. Marine Origin Petroleum Geology, 2008, 13 (2): 1- 16. doi: 10.3969/j.issn.1672-9854.2008.02.001
22	黄士鹏, 江青春, 汪泽成, 等. 四川盆地中二叠统栖霞组与茅口组烃源岩的差异性[J]. 天然气工业, 2016, 36 (12): 26- 34. doi: 10.3787/j.issn.1000-0976.2016.12.004
	Huang Shipeng , Jiang Qingchun , Wang Zecheng , et al. Differences between the Middle Permian Qixia and Maokou source rocks in the Sichuan Basin[J]. Natural Gas Industry, 2016, 36 (12): 26- 34. doi: 10.3787/j.issn.1000-0976.2016.12.004
23	胡朝伟, 胡广, 张玺华, 等. 川西北地区茅口组上部黑色岩系的层位、沉积环境及生烃潜力评价[J]. 石油实验地质, 2020, 42 (2): 202- 214.
	Hu Chaowei , Hu Guang , Zhang Xihua , et al. Sedimentary environment hydrocarbon potential and development of black rocks in upper Maokou Formation, northwestern Sichuan[J]. Petroleum Geology & Experiment, 2020, 42 (2): 202- 214.
24	张培先. 黔中隆起及邻区下寒武统页岩气成藏特殊性分析[J]. 石油实验地质, 2017, 39 (2): 162- 168.
	Zhang Peixian . Peculiar accumulation conditions for shale gas in the Lower Cambrian in Qianzhong uplift and its periphery[J]. Petroleum Geology & Experiment, 2017, 39 (2): 162- 168.
25	郑和荣, 彭勇民, 唐建信, 等. 中、上扬子地区常压页岩气勘探前景--以湘中坳陷下寒武统为例[J]. 石油与天然气地质, 2019, 40 (6): 1155- 1167.
	Zheng Herong , Peng Yongmin , Tang Jianxin , et al. Exploration prospect of normal pressure shale gas in Middle andUpper Yangtze regions: A case study of the Lower Cambrian shale in Xiangzhong Depression[J]. Oil & Gas Geology, 2019, 40 (6): 1155- 1167.
26	徐祖新. 川东地区中二叠统茅口组天然气成因及气源[J]. 特种油气藏, 2019, 26 (2): 16- 22.
	Xu Zuxin . Genesis and source of gas in middle Permian Maokou Formation of eastern Sichuan Basin[J]. Special Oil and Gas Reservoirs, 2019, 26 (2): 16- 22.
27	罗冰, 文龙, 张亚, 等. 四川盆地西北部栖霞组天然气差异成藏过程[J]. 石油与天然气地质, 2020, 41 (2): 393- 406.
	Luo Bing , Wen Long , Zhang Ya , et al. Differential gas accumulation process of the Middle Permian Qixia Formation, Northwestern Sichuan Basin[J]. Oil & Gas Geology, 2020, 41 (2): 393- 406.
28	吕文雅, 苗凤彬, 张本键, 等. 四川盆地剑阁地区须家河组致密砾岩储层裂缝特征及对天然气产能的影响[J]. 石油与天然气地质, 2020, 41 (3): 484- 491.
	Lyu Wenya , Miao Fengbin , Zhang Benjian , et al. Fracture characteristics and their influence on natural gas production: A case study of the tight conglomerate reservoir in the Upper Triassic Xujiahe Formation in Jian'ge area, Sichuan Basin[J]. Oil & Gas Geology, 2020, 41 (3): 484- 491.
29	戴金星, 夏新宇, 秦胜飞, 等. 中国有机烷烃气碳同位素系列倒转的成因[J]. 石油与天然气地质, 2003, 24 (1): 1- 11.
	Dai Jinxing , Xia Xinyu , Qin Shengfei , et al. Causation ofpartly reversed orders of δ¹³C in Biogenic Alkane gas in China[J]. Oil & Gas Geology, 2003, 24 (1): 1- 11.
30	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.
31	何治亮, 聂海宽, 张钰莹. 四川盆地及其周缘奥陶系五峰组-志留系龙马溪组页岩气富集主控因素分析[J]. 地学前缘, 2016, 23 (2): 8- 17.
	He Zhiliang , Nie Haikuan , Zhang Yuying . The main factors of shale gas enrichment of Ordovician Wufeng Formation-Silurian Longmaxi Formation in the Sichuan Basin and its adjacent areas[J]. Earth Science Frontiers, 2016, 23 (2): 8- 17.
32	何希鹏, 何贵松, 高玉巧, 等. 渝东南盆缘转换带常压页岩气地质特征及富集高产规律[J]. 天然气工业, 2018, 8 (12): 1- 14.
	He Xipeng , He Guisong , Gao Yuqiao , et al. Geological characteristics and enrichment and high yield of normal pressure shale gas in the basin transition zone of the southeast Chongqing[J]. Natural Gas Industry, 2018, 38 (12): 1- 14.
33	庹秀松, 陈孔全, 罗顺社, 等. 四川盆地东南缘齐岳山断裂构造特征与页岩气保存条件[J]. 石油与天然气地质, 2020, 41 (5): 1017- 1027.
	Tuo Xiusong , Chen Kongquan , Luo Shunshe , et al. Structural characteristics of Qiyueshan Fault and shale gas preservation at the southeastern margin of Sichuan Basin[J]. Oil & Gas Geology, 2020, 41 (5): 1017- 1027.
34	田鹤, 曾联波, 徐翔, 等. 四川盆地涪陵地区海相页岩天然裂缝特征及对页岩气的影响[J]. 石油与天然气地质, 2020, 41 (3): 474- 483.
	Tian He , Zeng Lianbo , Xu Xiang ,et al. Characteristics of natural fractures in marine shale in Fuling area, Sichuan Basin, and their influence on shale gas[J]. Oil & Gas Geology, 2020, 41 (3): 474- 483.
35	陈宗清. 四川盆地中二叠统茅口组天然气勘探[J]. 中国石油勘探, 2007, 12 (5): 1- 11.
	Chen Zongqing . Exploration for natural gas in Middle Permian Maokou Formation of Sichuan Basin[J]. China Petroleum Exploration, 2007, 12 (5): 1- 11.

[1]	Liqing ZHOU, Donghui JIANG, Pengcheng YANG, Rufeng ZHANG, Xin DONG, Yadi SANG. Philosophy and potential breakthroughs for hydrocarbon exploration in block LS13-2 on the northern slope of the Lingshui Sag， Qiongdongnan Basin [J]. Oil & Gas Geology, 2024, 45(3): 673-683.
[2]	Caineng ZOU, Dazhong DONG, Wei XIONG, Guoyou FU, Qun ZHAO, Wen LIU, Weiliang KONG, Qin ZHANG, Guangyin CAI, Yuman WANG, Feng LIANG, Hanlin LIU, Zhen QIU. Advances， challenges， and countermeasures in shale gas exploration of underexplored plays， sequences and new types in China [J]. Oil & Gas Geology, 2024, 45(2): 309-326.
[3]	Xiao HE, Maja ZHENG, Yong LIU, Qun ZHAO, Xuewen Shi, Zhenxue Jiang, Wei WU, Ya WU, Shitan NING, Xianglu TANG, Dadong LIU. Characteristics and differential origin of Qiongzhusi Formation shale reservoirs under the “aulacogen-uplift” tectonic setting， Sichuan Basin [J]. Oil & Gas Geology, 2024, 45(2): 420-439.
[4]	Yi ZHANG, Bin ZHANG, Banghua LIU, Jie LIU, Qiansheng WEI, Qi ZHANG, Hongjun LU, Pengyu ZHU, Rui WANG. Status quo and development trends of research on shale gas adsorption and seepage in shale gas reservoirs [J]. Oil & Gas Geology, 2024, 45(1): 256-280.
[5]	Lijun MI, Jianyong XU, Wei LI. Shale oil resource potential in the Bohai Sea area [J]. Oil & Gas Geology, 2023, 44(6): 1366-1377.
[6]	Guangfu WANG, Fengxia LI, Haibo WANG, Tong ZHOU, Yaxiong ZHANG, Ruyue WANG, Ning LI, Yuxin CHEN, Xiaofei XIONG. Difficulties and countermeasures for fracturing of various shale gas reservoirs in the Sichuan Basin [J]. Oil & Gas Geology, 2023, 44(6): 1378-1392.
[7]	Dongfeng HU, Zhihong WEI, Ruobing LIU, Xiangfeng WEI, Wei WANG, Qingbo WANG. Discovery of the Qijiang shale gas field in a structurally complex region on the southeastern margin of the Sichuan Basin and its implications [J]. Oil & Gas Geology, 2023, 44(6): 1418-1429.
[8]	Hongyan WANG, Shangwen ZHOU, Qun ZHAO, Zhensheng SHI, Dexun LIU, Pengfei JIAO. Enrichment characteristics， exploration and exploitation progress， and prospects of deep shale gas in the southern Sichuan Basin， China [J]. Oil & Gas Geology, 2023, 44(6): 1430-1441.
[9]	Zhixiong FANG, Qiusheng XIAO, Dianwei ZHANG, Hongliang DUAN. Geological characteristics and exploration of continental fault-block shale oil reservoirs in the Subei Basin [J]. Oil & Gas Geology, 2023, 44(6): 1468-1478.
[10]	Ruikang BIAN, Chuanxiang SUN, Haikuan NIE, Zhujiang LIU, Wei DU, Pei LI, Ruyue WANG. Types， characteristics， and exploration targets of deep shale gas reservoirs in the Wufeng-Longmaxi formations， southeastern Sichuan Basin [J]. Oil & Gas Geology, 2023, 44(6): 1515-1529.
[11]	Dongjun FENG. Sweet spot assessment and its significance for the marine-continental transitional shale gas of Permian Longtan Fm. in southeastern Sichuan Basin [J]. Oil & Gas Geology, 2023, 44(3): 778-788.
[12]	Pengwei WANG, Zhongbao LIU, Dianwei ZHANG, Xiong LI, Wei DU, Haotian LIU, Peng LI, Ruyue WANG. Control of organic matter enrichment on organic pore development in the Permian marine organic-rich shale， eastern Sichuan Basin [J]. Oil & Gas Geology, 2023, 44(2): 379-392.
[13]	Yiwen Gao, Shiyan Hao, Qing Wang, Weibo Wang, Shaojing Jiang, Qingxiong Fan, Zhijun Chen, Ye Zhou. Geochemical characteristics and hydrocarbon resources potential of source rocks in Babei Sag， Yingen-Ejinaqi Basin [J]. Oil & Gas Geology, 2022, 43(6): 1445-1458.
[14]	Guangfu Wang, Fengxia Li, Haibo Wang, Jun Li, Hong Zhang, Tong Zhou, Xiaofei Shang, Linhua Pan, Yunqi Shen. Application of an integrated geology-reservoir engineering approach to fracturing in unconventional gas reservoirs， Sichuan Basin and some insights [J]. Oil & Gas Geology, 2022, 43(5): 1221-1237.
[15]	Shuanglian Liu. Logging evaluation of “double sweet spot” in shale gas reservoirs [J]. Oil & Gas Geology, 2022, 43(4): 1005-1012.

Geological characteristics and enrichment pattern of Permian Mao 1 Member shale gas reservoirs at the southeastern margin of Sichuan Basin

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 12

References 35

Related Articles 15

Recommended Articles

Metrics