构造变形作用下页岩孔裂隙结构演化特征及其模式——以四川盆地及其周缘下古生界海相页岩为例

doi:10.11743/ogg20210116

Abstract

Abstract:

Tectonic stress may deform or damage the shale rocks, thus affecting their macro or micro structures to varying degrees.The marine shale samples from the Lower Silurian Longmaxi Formation and the Lower Cambrian Lujiaping Formation respectively in the southeast and northeast parts of the Sichuan Basin, were studied through focused ion beam scanning electron microscopy (FIB-SEM), gas adsorption, and mercury intrusion, to evaluate the effect of structural type and deformation mechanisms on the reconstruction of shale pore and fracture structures.Results indicate that shale in monoclines contains mostly organic matter pores, while shale in folds or faults resulted from strong tectonic activities contains largely mineral interparticle pores, dissolution pores and fractures.Comparatively, fold-related shale has more micro pores and fault-related shale has more macro pores than monoclinic shale.The pore difference in shale of different structural parts can be attributed to an uneven distribution of local structural stress.Brittle shale contains mainly micrometer-sized pores and fractures, which are conducive to gas migration and accumulation; while ductile shale is dominated by nanometer-sized pores, which are conducive to gas adsorption and occurrence.The total pore volume of the shale increases with brittle deformation and decreases with ductile deformation.The total specific surface area of the pores is loosely connected with brittle deformation, but has a positive relationship with ductile deformation.Based on these results, the paper discusses the controlling factors and evolution models of micro-nano shale pores and fractures under structural deformation, and concludes that the structural stress on shale results in the modification of shale compositions, the evolution of pores and fractures in shale, and the storage and migration of shale gas.

Key words: pore and fracture structure, tectonic deformation, evolutionary model, marine shale, shale gas, Lower Paleozoic, Sichuan Basin

CLC Number:

TE122.2

Hongjian Zhu, Yiwen Ju, Yan Sun, Cheng Huang, Hongye Feng, Raza Ali, Kun Yu, Peng Qiao, Lei Xiao. Evolution characteristics and models of shale pores and fractures under tectonic deformation: A case study of the Lower Paleozoic marine shale in the Sichuan Basin and its periphery[J]. Oil & Gas Geology, 2021, 42(1): 186-200, 240.

Figures/Tables 13

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

Table 1

Fig.8

Fig.9

Fig.10

Fig.11

Fig.12

References 40

1	郭彤楼. 中国式页岩气关键地质问题与成藏富集主控因素[J]. 石油勘探与开发, 2016, 43 (3): 317- 326.
	Guo Tonglou . Key geological issues and main controls on accumulation and enrichment of Chinese shale gas[J]. Petroleum Exploration and Development, 2016, 43 (3): 317- 326.
2	郭旭升. 南方海相页岩气"二元富集"规律——四川盆地及周缘龙马溪组页岩气勘探实践认识[J]. 地质学报, 2014, 88 (7): 1209- 1218.
	Guo Xusheng . Rules of two-factor enrichiment for marine shale gas in southern China——Understanding from the Longmaxi Formation shale gas in Sichuan Basin and its surrounding area[J]. Acta Geologica Sinica, 2014, 88 (7): 1209- 1218.
3	郭旭升, 胡东风, 魏祥峰, 等. 四川盆地焦石坝地区页岩裂缝发育主控因素及对产能的影响[J]. 石油与天然气地质, 2016, 37 (6): 799- 808.
	Guo Xusheng , Hu Dongfeng , Wei Xiangfeng , et al. Main controlling factors on shale fractures and their influences on production capacity in Jiaoshiba area, the Sichuan Basin[J]. Oil & Gas Geology, 2016, 37 (6): 799- 808.
4	Loucks R G , Reed R M , Ruppel S C , et al. Morphology, genesis, and distribution of nanometer-scale pores in siliceous mudstones of the Mississippian Barnett shale[J]. Journal of Sedimentary Research, 2009, 79 (12): 848- 61. doi: 10.2110/jsr.2009.092
5	Loucks R G , Reed R M , Ruppel S , et al. Spectrum of pore types and networks in mudrocks and a descriptive classification for matrix-related mudrock pores[J]. AAPG Bulletin, 2012, 96 (6): 1071- 98. doi: 10.1306/08171111061
6	Slatt R , O'Brien N . Pore types in the Barnett and Woodford gas shales: Contribution to understanding gas storage and migration pathways in fine-grained rocks[J]. AAPG Bulletin, 2011, 95 (12): 2017- 2130. doi: 10.1306/03301110145
7	Ma Y , Zhong N N , Li D H , et al. Organic matter/clay mineral intergranular pores in the Lower Cambrian Lujiaping Shale in the north-eastern part of the upper Yangtze area, China: A possible microscopic mechanism for gas preservation[J]. International Journal of Coal Geology, 2015, 137, 38- 54. doi: 10.1016/j.coal.2014.11.001
8	Liang M L , Wang Z X , Gao L , et al. Evolution of pore structure in gas shale related to structural deformation[J]. Fuel, 2017, 197, 310- 319. doi: 10.1016/j.fuel.2017.02.035
9	Zhu H J , Ju Y W , Qi Y , et al. Impact of tectonism on pore type and pore structure evolution in organic-rich shale: Implications for gas storage and migration pathways in naturally deformed rocks[J]. Fuel, 2018, 228, 272- 289. doi: 10.1016/j.fuel.2018.04.137
10	Zhu H J , Ju Y W , Huang C , et al. Pore structure variations across structural deformation of Silurian Longmaxi Shale: An example from the Chuandong Thrust-Fold Belt[J]. Fuel, 2019, 241, 914- 932. doi: 10.1016/j.fuel.2018.12.108
11	徐政语, 姚根顺, 梁兴, 等. 扬子陆块下古生界页岩气保存条件分析[J]. 石油实验地质, 2015, 37 (4): 407- 417.
	Xu Zhengyu , Yao Genshun , Liang Xing , et al. Shale gas preservation conditions in the Lower Paleozoic, Yangtze block[J]. Petroleum geology & experiment, 2015, 37 (4): 407- 417.
12	董大忠, 程克明, 王玉满, 等. 中国上扬子区下古生界页岩气形成条件及特征[J]. 石油与天然气地质, 2010, 31 (3): 288- 299.
	Dong Dazhong , Cheng Keming , Wang Yuman , et al. Forming conditions and characteristics of shale gas in the Lower Paleozoic of the Upper Yangtze region, China[J]. Oil & Gas Geology, 2010, 31 (3): 288- 299.
13	高波, 刘忠宝, 舒志国, 等. 中上扬子地区下寒武统页岩气储层特征及勘探方向[J]. 石油与天然气地质, 2020, 41 (2): 284- 294.
	Gao Bo , Liu Zhongbao , Shu Zhiguo , et al. Reservoir characteristics and exploration of the Lower Cambrian shale gas in the Middle-Upper Yangtze area[J]. Oil & Gas Geology, 2020, 41 (2): 284- 294.
14	肖佃师, 赵仁文, 杨潇, 等. 海相页岩气储层孔隙表征、分类及贡献[J]. 石油与天然气地质, 2019, 40 (6): 1215- 1225.
	Xiao Dianshi , Zhao Renwen , Yang Xiao , et al. Characterization, classification and contribution of marine shale gas reservoirs[J]. Oil & Gas Geology, 2019, 40 (6): 1215- 1225.
15	Guo T L . Key geological issues and main controls on accumulation and enrichment of Chinese shale gas[J]. Petroleum Exploration and Development, 2016, 43 (3): 349- 359. doi: 10.1016/S1876-3804(16)30042-8
16	何登发, 李德生, 张国伟, 等. 四川多旋回叠合盆地的形成与演化[J]. 地质科学, 2011, 46 (3): 589- 606. doi: 10.3969/j.issn.0563-5020.2011.03.001
	He Dengfa , Li Desheng , Zhang Guowei , et al. Formation and evolution of multi-cycle superposed Sichuan Basin, China[J]. Chinese journal of geology, 2011, 46 (3): 589- 606. doi: 10.3969/j.issn.0563-5020.2011.03.001
17	徐政语, 梁兴, 王维旭, 等. 上扬子区页岩气甜点分布控制因素探讨——以上奥陶统五峰组-下志留统龙马溪组为例[J]. 天然气工业, 2016, 36 (9): 35- 43.
	Xu Zhengyu , Liang Xing , Wang Weixu , et al. Controlling factors for shale gas sweet spots distribution in the Upper Yangtze region: A case study of the Upper Ordovician Wufeng Fm-Lower Silurian Longmaxi Fm, Sichuan Basin[J]. Nature gas industry, 2016, 36 (9): 35- 43.
18	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 (1): 1- 11.
	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 (1): 1- 11.
19	李智武. 中-新生代大巴山前陆盆地-冲断带的形成演化[D]. 成都: 成都理工大学, 2006.
	Li Zhiwu. Meso-Cenozoic evolution of Dabashan of reland basin-thrust belt, central China[D]. Chengdu: Chengdu University of Technology, 2006.
20	琚宜文, 姜波, 侯泉林, 等. 构造煤结构-成因新分类及其地质意义[J]. 煤炭学报, 2004, 29 (5): 513- 517. doi: 10.3321/j.issn:0253-9993.2004.05.001
	Ju Yiwen , Jiang Bo , Hou Quanlin , et al. The new structure-genetic classification system in tectonically deformed coals and its geological significance[J]. Journal of china coal society, 2004, 29 (5): 513- 517. doi: 10.3321/j.issn:0253-9993.2004.05.001
21	琚宜文, 姜波, 侯泉林, 等. 华北南部构造煤纳米级孔隙结构演化特征及作用机理[J]. 地质学报, 2005, 79 (2): 269- 285.
	Ju Yiwen , Jiang Bo , Hou Quanlin , et al. Structural evolution of nano-scale pores of tectonic coals in southern north China and its mechanism[J]. Acta Geologica Sinica, 2005, 79 (2): 269- 285.
22	琚宜文, 姜波, 王桂梁, 等. 层滑构造煤岩体微观特征及其应力应变分析[J]. 地质科学, 2004, 39 (1): 50- 62. doi: 10.3321/j.issn:0563-5020.2004.01.006
	Ju Yiwen , Jiang Bo , Wang Guiliang , et al. Characteristics of microcosm of interlayer-gliding tectonic coal-tectonite and their stress-finite strain analyses[J]. Chinese Journal of Geology, 2004, 39 (1): 50- 62. doi: 10.3321/j.issn:0563-5020.2004.01.006
23	韩军, 张宏伟, 霍丙杰. 向斜构造煤与瓦斯突出机理探讨[J]. 煤炭学报, 2008, 33 (8): 908- 913. doi: 10.3321/j.issn:0253-9993.2008.08.014
	Han Jun , Zhang Hongwei , Huo Bingjie . Discussion of coal and gas outburst mechanism of syncline[J]. Journal of china coal society, 2008, 33 (8): 908- 913. doi: 10.3321/j.issn:0253-9993.2008.08.014
24	曾联波. 低渗透砂岩油气储层裂缝及其渗流特征[J]. 地质科学, 2004, 39 (1): 11- 17.
	Zeng Lianbo . Fissure and its seepage characteristics in low-permeable sandstone reservoir[J]. Chinese Journal Geology, 2004, 39 (1): 11- 17.
25	Zhu H J , Ju Y W , Huang C , et al. Petrophysical properties of the major marine shales in the Upper Yangtze Block, South China: A function of structural deformation[J]. Marine and Petroleum Geology, 2019, 110, 768- 786. doi: 10.1016/j.marpetgeo.2019.08.003
26	苏现波, 谢洪波, 华四良. 煤体脆-韧性变形微观识别标志[J]. 煤田地质与勘探, 2003, 31 (6): 18- 21. doi: 10.3969/j.issn.1001-1986.2003.06.006
	Su Xianbo , Xie Hongbo , Hua Siliang . The microscopic identification of coal brittle-ductile deformation[J]. Coal Geology & Exploration, 2003, 31 (6): 18- 21. doi: 10.3969/j.issn.1001-1986.2003.06.006
27	袁玉松, 刘俊新, 周雁. 泥页岩脆-延转化带及其在页岩气勘探中的意义[J]. 石油与天然气地质, 2018, 39 (5): 899- 906.
	Yuan Yusong , Liu Junxin , Zhou Yan . Brittle-ductile transition zone of shale and its implications in shale gas exploration[J]. Oil & Gas Geology, 2018, 39 (5): 899- 906.
28	郑益军. 四川盆地东南缘五峰-龙马溪组页岩地球化学、物性特征及其影响因素[D]. 广州: 中国科学院广州地球化学研究所, 2017.
	Zheng Yijun. Geochemical, petrophysical properties and its effecting factors of the Wufeng-Longmaxi Shale in southeastern margins of the Sichuan Basin[D]. Guangzhou: Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 2017.
29	张灿. 构造挤压对页岩孔隙影响的地质实例与模拟实验研究[D]. 广州: 中国科学院广州地球化学研究所, 2019.
	Zhang Can. Influence of tectonic compression on shale pore structure development: A case study and simulation experiments[D]. Guangzhou: Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 2019.
30	郭旭升, 李宇平, 刘若冰, 等. 四川盆地焦石坝地区龙马溪组页岩微观孔隙结构特征及其控制因素[J]. 天然气工业, 2014, 34 (6): 9- 16.
	Guo Xusheng , Li Yuping , Liu Ruobing , et al. Characteristics and controlling factors of micro-pore structures of Longmaxi shale play in the Jioashiba area, Sichuan Basin[J]. Nature Gas Industry, 2014, 34 (6): 9- 16.
31	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 an example[J]. Natural Gas Geoscience, 2013, 24 (4): 643- 651.
32	何登发, 鲁人齐, 黄涵宇, 等. 长宁页岩气开发区地震的构造地质背景[J]. 石油勘探与开发, 2019, 46 (5): 993- 1006.
	He Dengfa , Lu Renqi , Huang Hanyu , et al. Tectonic and geological background of the earthquake hazards in Changning shale gas develo-pment zone, Sichuan Basin, SW China[J]. Petroleum Exploration and Development, 2019, 46 (5): 993- 1006.
33	王玉满, 黄金亮, 王淑芳, 等. 四川盆地长宁、焦石坝志留系龙马溪组页岩气刻度区精细解剖[J]. 天然气地球科学, 2016, 27 (3): 423- 432.
	Wang Yuman , Huang Jinliang , Wang Shufang , et al. Dissection of two calibrated areas of the Silurian Longmaxi Formation, Changning and Jiaoshiba, Sichuan Basin[J]. Natural Gas Geoscience, 2016, 27 (3): 423- 432.
34	Zhu H J , Ju Y W , Huang C , et al. Microcosmic gas adsorption mechanism on clay-organic nanocomposites in a marine shale[J]. Energy, 2020, 197, 117256.
35	Ju Y W , Wang G C , Bu H L , et al. China organic-rich shale geologic features and special shale gas production issues[J]. Journal of Rock Mechanics and Geotechnical Engineering, 2014, 6, 196- 207.
36	琚宜文, 黄骋, 孙岩, 等. 纳米地球科学: 内涵与意义[J]. 地球科学, 2018, 43 (5): 1367- 1383.
	Ju Yiwen , Huang Cheng , Sun Yan , et al. Nanogeoscience: Connotation and significance[J]. Earth Science, 2018, 43 (5): 1367- 1383.
37	岳锋, 李永臣, 赵宝山, 等. 重庆下古生界页岩顺层滑脱变形域的形成及其地质意义[J]. 石油与天然气地质, 2018, 39 (2): 229- 238.
	Yue Feng , Li Yongchen , Zhao Baoshan , et al. Bedding decollement deformation domain in the Lower Paleozoic shales in Chongqing: Formation and geological significance[J]. Oil & Gas Geology, 2018, 39 (2): 229- 238.
38	Ju Y W , Huang C , Sun Y , et al. Nanogeosciences: Research history, current status, and development trends[J]. Journal of Nanoscience and Nanotechnology, 2017, 17 (9): 5930- 5965.
39	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[J]. 中国矿业大学学报, 2020, 49 (1): 16- 38.
	Nie Haikuan , He Zhiliang , Liu Guangxiang , et al. Status and direction of shale gas exploration and development in China[J]. Journal of China University of Mining & Technology, 2020, 49 (1): 16- 38.
40	聂海宽, 何治亮, 刘光祥, 等. 四川盆地五峰组-龙马溪组页岩气优质储层成因机制[J]. 天然气工业, 2020, 40 (6): 31- 41.
	Nie Haikuan , He Zhiliang , Liu Guangxiang , et al. Genetic mechanism of high-quality shale gas reservoirs in the Wufeng-Longmaxi Fms in the Sichuan Basin[J]. Natural Gas Industry, 2020, 40 (6): 31- 41.

样品类型	样品编号	孔隙体积/(mL·g^-1)				孔隙比表面积/(m²·g^-1)
		占比/%				占比/%
		微孔	中孔	大孔	总和	微孔	中孔	总和
脆性变形序列	B1	0.004 3	0.008 0	0.023 0	0.035 3	13.554 0	0.975 0	14.529 0
	B1	12	23	65	0.035 3	93.3	6.7	14.529 0
	B2	0.006 1	0.005 8	0.018 0	0.029 9	19.107 0	1.023 0	20.130 0
	B2	20	19	61	0.029 9	95.0	5.0	20.130 0
	B3	0.003 7	0.004 6	0.023 0	0.031 3	10.664 0	0.670 0	11.334 0
	B3	12	15	73	0.031 3	94.1	5.9	11.334 0
	B4	0.000 5	0.000 6	0.044 0	0.045 1	14.332 0	0.067 0	14.399 0
	B4	1	1	98	0.045 1	99.5	0.5	14.399 0
	B5	0.003 4	0.000 5	0.040 0	0.043 9	11.323 0	0.051 0	11.374 0
	B5	8	1	91	0.043 9	99.6	0.4	11.374 0
韧性变形序列	D1	0.004 4	0.001 5	0.075 0	0.080 9	16.253 0	0.167 0	16.420 0
	D1	5	2	93	0.080 9	99.0	1.0	16.420 0
	D2	0.005 1	0.002 1	0.044 0	0.051 2	14.933 0	0.224 0	15.157 0
	D2	10	4	86	0.051 2	98.5	1.5	15.157 0
	D3	0.006 9	0.001 7	0.007 0	0.015 6	22.816 0	0.185 0	23.001 0
	D3	44	11	45	0.015 6	99.2	0.8	23.001 0
	D4	0.006 4	0.001 2	0.043 0	0.050 6	21.393 0	0.133 0	21.526 0
	D4	13	2	85	0.050 6	99.4	0.6	21.526 0
	D5	0.007 2	0.001 3	0.031 0	0.039 5	25.078 0	0.146 0	25.224 0
	D5	18	3	79	0.039 5	99.4	0.6	25.224 0

[1]	Rui FANG, Yuqiang JIANG, Changcheng YANG, Haibo DENG, Chan JIANG, Haitao HONG, Song TANG, Yifan GU, Xun ZHU, Shasha SUN, Guangyin CAI. Occurrence states and mobility of shale oil in different lithologic assemblages in the Jurassic Lianggaoshan Formation， Sichuan Basin [J]. Oil & Gas Geology, 2024, 45(3): 752-769.
[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]	Changbo ZHAI, Liangbiao LIN, Donghua YOU, Fengbin LIU, Siyu LIU. Sedimentary microfacies characteristics and organic matter enrichment pattern of the 1^st member of the Middle Permian Maokou Formation， southwestern Sichuan Basin [J]. Oil & Gas Geology, 2024, 45(2): 440-456.
[5]	Heyi ZHANG, Shuai YANG, Xihua ZHANG, Hanlin PENG, Qian LI, Cong CHEN, Zhaolong GAO, Anqing CHEN. Sedimentary microfacies and environmental evolution of the Middle Permian Maokou Formation in the eastern Sichuan Basin： A case study of the Yangjiao section in Wulong District， Chongqing， China [J]. Oil & Gas Geology, 2024, 45(2): 457-470.
[6]	Hui PAN, Yuqiang JIANG, Xun ZHU, Haibo DENG, Linke SONG, Zhanlei WANG, Miao LI, Yadong ZHOU, Linjie FENG, Yongliang YUAN, Meng WANG. Evaluation of geological sweet spots in fluvial tight sandstone gas： A case study of the first submember of the second member of the Jurassic Shaximiao Formation， central Sichuan Basin [J]. Oil & Gas Geology, 2024, 45(2): 471-485.
[7]	Baoshou ZHANG, Benjian ZHANG, Hua WANG, Jianfa CHEN, Kaixuan LIU, Shuang DOU, Xin DAI, Shuangling CHEN. The Jinqiu gas field in the Sichuan Basin： A typical helium-bearing to helium-rich gas field with the Mesozoic sedimentary rocks as helium source rocks [J]. Oil & Gas Geology, 2024, 45(1): 185-199.
[8]	Zhili ZHANG, Yanping QIAO, Shuang DOU, Kunyu LI, Yuan ZHONG, Luya WU, Baoshou ZHANG, Xin Dai, Xin JIN, Bin WANG, Jinmin SONG. Karst paleogeomorphology and reservoir control model of the 2^nd member of Dengying Formation in Penglai gas area， Sichuan Basin， China [J]. Oil & Gas Geology, 2024, 45(1): 200-214.
[9]	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.
[10]	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.
[11]	Zongquan HU, Ruyue WANG, Jing LU, Dongjun FENG, Yuejiao LIU, Baojian SHEN, Zhongbao LIU, Guanping WANG, Jianhua HE. Storage characteristic comparison of pores between lacustrine shales and their interbeds and differential evolutionary patterns [J]. Oil & Gas Geology, 2023, 44(6): 1393-1404.
[12]	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.
[13]	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.
[14]	Zhensheng SHI, Shengxian ZHAO, Tianqi ZHOU, Shasha SUN, Yuan YUAN, Chenglin ZHANG, Bo LI, Ling QI. Types and genesis of horizontal bedding of marine gas-bearing shale and its significance for shale gas： A case study of the Wufeng-Longmaxi shale in southern Sichuan Basin， China [J]. Oil & Gas Geology, 2023, 44(6): 1499-1514.
[15]	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.

Evolution characteristics and models of shale pores and fractures under tectonic deformation: A case study of the Lower Paleozoic marine shale in the Sichuan Basin and its periphery

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 13

References 40

Related Articles 15

Recommended Articles

Metrics