中国南方海相地层牛蹄塘组页岩气“甜点段”识别和优选

doi:10.11743/ogg20200515

Abstract

Abstract:

Low-temperature adsorption/desorption of liquid nitrogen and isothermal adsorption of methane were used to characterize the shale reservoir capacity for adsorbed gas and free gas so as to describe the occurrence of shale gas in the original reservoirs of the Niutitang Formation in southern China.Combined with the gas-bearing properties of typical wells, the occurrence mechanism of the shale gas was studied and the "sweet spots" were identified and optimized in the study area.The results show that 1 to 2 layers of organic-rich shale dominated by black siliceous shale are developed in the Niutitang Formation (TOC>2.0%).Organic-matter pores (cylindrical pores with both ends open), interlayer pores of clay mineral (narrow parallel-plate pores with four sides open) and intergranular and intercrystalline pores (conical parallel-plate pores with four sides open) are developed with the organic-matter pores being the most important.The Niutitang Formation is generally poor in gas-bearing properties, except for one well (Well Ciye 1) measured with a residual gas volume fraction of as high as 69.7%.Both theoretical calculation and field experiments have shown that the occurrence of methane in Niutitang Formation shale reservoirs vary with TOC.Due to the relatively small organic-matter pore size (usually smaller than tens of nanometers), the original reservoirs in the formation store more adsorbed gas than free gas.With the increase of organic matter mass fraction, the elastic modulus of rocks decreases and the Poisson's ratio increases gradually.The "sweet spots" in the Niutitang Formation are characterized by "sweetness" and "brittleness", i.e.they have greater thickness (20-40 m) and high TOC values between 4% and 8%, high quartz mass fraction (>40%) and clay mineral mass fraction (30%-40%), low carbonate rock mass fraction (< 20%), a V_BJH of (10-17)×10^-3 cm³/g, a V_L of 4-6 cm³/g, a free gas volume fraction of more than 40%, an elasticity modulus of 25~35 GPa and a Poisson's ratio of 0.20~0.25.In short, the "sweet spots" in the Niutitang Formation are mainly developed in deep shelf argillaceous facies with high free gas storage capacity.

Key words: shale gas, sweet spot, Niutitang Formation, marine formation, South China

CLC Number:

TE122.2

Shiqing Wu, Jianhua Guo, Zhiyu Li, Mingyang Qin, Yanran Huang, Haonan He. Identification and optimization of shale gas "sweet spots" in marine Niutitang Formation, South China[J]. Oil & Gas Geology, 2020, 41(5): 1048-1059.

Figures/Tables 14

Fig.1

Fig.2

Fig.3

Fig.4

Table 1

Fig.5

Fig.6

Table 2

Table 3

Fig.7

Fig.8

Fig.9

Fig.10

Table 4

References 39

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[J]. 天然气地球科学, 2017, 28 (12): 1781- 1796.
	Zou Caineng , Zhao Qun , Dong Dazhong , et al. Geological characteristics, main challenges and future prospect of shale gas[J]. Natural Gas Geoscience, 2017, 28 (12): 1781- 1796.
2	马永生, 蔡勋育, 赵培荣. 中国页岩气勘探开发理论认识与实践[J]. 石油勘探与开发, 2018, 45 (4): 561- 574.
	Ma Yongsheng , Cai Xunyu , Zhao Peirong . China's shale gas exploration and development:Understanding and practice[J]. Petroleum Exploration and Development, 2018, 45 (4): 561- 574.
3	董大忠, 王玉满, 李新景, 等. 中国页岩气勘探开发新突破及发展前景思考[J]. 天然气工业, 2016, 36 (1): 19- 32.
	Dong Dazhong , Wang Yuman , Li Xinjing , et al. Breakthrough and prospect of shale gas exploration and development in China[J]. Natural Gas Industry, 2016, 36 (1): 19- 32.
4	谢军. 长宁:威远国家级页岩气示范区建设实践与成效[J]. 天然气工业, 2018, 38 (2): 1- 7.
	Xie Jun . Practices and achievements of the Changning-Weiyuan shale gas national demonstration project construction[J]. Natural Gas Industry, 2018, 38 (2): 1- 7.
5	陈孝红, 危凯, 张保民, 等. 湖北宜昌寒武系水井沱组页岩气藏主控地质因素和富集模式[J]. 中国地质, 2018, 45 (2): 207- 226.
	Chen Xiaohong , Wei Kai , Zhang Baomin , et al. Main geological factors controlling shale gas reservior in the Cambrian shuijingtuo formation in Yichang of Hubei Province as well as its and enrichment patterns[J]. Geology in China, 2018, 45 (2): 207- 226.
6	翟刚毅, 包书景, 庞飞, 等. 贵州遵义地区安场向斜"四层楼"页岩油气成藏模式研究[J]. 中国地质, 2017, 44 (1): 1- 12.
	Zhai Gangyi , Bao Shujing , Pang Fei , et al. Peservoir-forming pattern of "four-storey" hydrocarbon accumulation in anchang syncline of northern Guizhou Province[J]. Geology in China, 2017, 44 (1): 1- 12.
7	张琳婷, 郭建华, 焦鹏, 等. 湘西北下寒武统牛蹄塘组页岩气藏形成条件与资源潜力[J]. 中南大学学报(自然科学版), 2014, 45 (4): 1163- 1173.
	Zhang Linting , Guo Jianhua , Jiao Peng , et al. Accumulation conditions and resource potential of shale gas in lower Cambrian niutitang formation, Northwestern Hunan[J]. Journal of Central South University(Science and Technology), 2014, 45 (4): 1163- 1173.
8	张琳婷, 郭建华, 焦鹏, 等. 湘西北地区牛蹄塘组页岩气有利地质条件及成藏区带优选[J]. 中南大学学报(自然科学版), 2015, 46 (5): 1715- 1722.
	Zhang Linting , Guo Jianhua , Jiao Peng , et al. Geological conditions and favorable exploration zones of shale gas in niutitang formation at northwest Hunan[J]. Journal of Central South University(Science and Technology), 2015, 46 (5): 1715- 1722.
9	CURTIS, John B.Fractured shale-gas systems[C].AAPG Bulletin, 2002, 86(11): 1921-1938.
10	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.
11	王志刚. 涪陵页岩气勘探开发重大突破与启示[J]. 石油与天然气地质, 2015, 36 (1): 1- 6.
	Wang Zhigang . Breakthrough of Fuling shale gas exploration and development and its inspiration[J]. Oil & Gas Geology, 2015, 36 (1): 1- 6.
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 Haikuan , 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	Hao Fang , Zou Huayao , Lu Yongchao . Mechanisms of shale gas storage:Implications for shale gas exploration in China[J]. AAPG Bulletin, 2013, 97 (8): 1325- 1346. doi: 10.1306/02141312091
14	邹才能, 董大忠, 王玉满, 等. 中国页岩气特征、挑战及前景(一)[J]. 石油勘探与开发, 2015, 42 (6): 689- 701.
	Zou Caineng , Dong Dazhong , Wang Yuman , et al. Shale gas in China:characteristics, challenges and prospects(Ⅰ)[J]. Petroleum Exploration and Development, 2015, 42 (6): 689- 701.
15	林拓, 张金川, 李博, 等. 湘西北地区龙马溪组页岩气聚集条件与含气性分析[J]. 新疆石油地质, 2014, 35 (5): 507- 510.
	Lin Tuo , Zhang Jinchuan , Li Bo , et al. Accumulation conditions and gas-bearing characteristic analysis of longmaxi shale gas in Northweste-rn Hunan Province[J]. Xinjiang Petroleum Geology, 2014, 35 (5): 507- 510.
16	林拓, 张金川, 李博, 等. 湘西北常页1井下寒武统牛蹄塘组页岩气聚集条件及含气特征[J]. 石油学报, 2014, 35 (5): 839- 846.
	Lin Tuo , Zhang Jinchuan , Li Bo , et al. Shale gas accumulation conditions and gas-bearing properties of the lower Cambrian niutitang formation in well changye 1, Northwestern Hunan[J]. Acta Petrolei Sinica, 2014, 35 (5): 839- 846.
17	金之钧, 胡宗全, 高波, 等. 川东南地区五峰组-龙马溪组页岩气富集与高产控制因素[J]. 地学前缘, 2016, 23 (1): 1- 10.
	Jin Zhijun , Hu Zongquan , Gao Bo , et al. Controlling factors on the enrichment and high productivity of shale gas in the Wufeng-longmaxi formations, southeastern Sichuan basin[J]. Earth Science Frontiers, 2016, 23 (1): 1- 10.
18	秦明阳, 郭建华, 黄俨然, 等. 四川盆地东缘湘西北地区牛蹄塘组页岩储层特征及影响因素[J]. 石油与天然气地质, 2017, 38 (5): 922- 932.
	Qin Mingyang , Guo Jianhua , Huang Yanran , et al. Characteristics and influencing factors of shale reservoirs in the niutitang formation of Northwestern Hunan Province, and East margin of Sichuan basin[J]. Oil & Gas Geology, 2017, 38 (5): 922- 932.
19	秦明阳, 郭建华, 黄俨然, 等. 四川盆地外复杂地质条件区海相页岩气"甜点区"优选:以湘西北地区古生界为例[J]. 中南大学学报(自然科学版), 2019, 50 (3): 596- 606.
	Qin Mingyang , Guo Jianhua , Huang Yanran , et al. "Sweet spots zone" optimization of marine shale gas in complex geological conditions area out of Sichuan basin:a case of Paleozoic in Northwestern Hunan, China[J]. Journal of Central South University(Science and Technology), 2019, 50 (3): 596- 606.
20	Tan Jingqiang , Weniger P , Krooss B , et al. Shale gas potential of the major marine shale formations in the upper Yangtze platform, South China, part Ⅱ:methane sorption capacity[J]. Fuel, 2014, 129, 204- 218. doi: 10.1016/j.fuel.2014.03.064
21	秦明阳, 郭建华, 何红生, 等. 四川盆地外复杂构造区页岩气地质条件及含气性特征:以湘西北五峰组-龙马溪组为例[J]. 中南大学学报(自然科学版), 2018, 49 (8): 1979- 1990.
	Qin Mingyang , Guo Jianhua , He Hongsheng , et al. Geological conditions and gas-bearing characteristics of shale gas in complex structure area out of Sichuan basin:a case of Wufeng:longmaxi formation in Northwestern Hunan, China[J]. Journal of Central South University(Science and Technology), 2018, 49 (8): 1979- 1990.
22	张晓明, 石万忠, 徐清海, 等. 四川盆地焦石坝地区页岩气储层特征及控制因素[J]. 石油学报, 2015, 36 (8): 926- 939, 953.
	Zhang Xiaoming , Shi Wanzhong , Xu Qinghai , et al. Reservoir characteristics and controlling factors of shale gas in jiaoshiba area, Sichuan basin[J]. Acta Petrolei Sinica, 2015, 36 (8): 926- 939, 953.
23	邹才能, 杨智, 朱如凯, 等. 中国非常规油气勘探开发与理论技术进展[J]. 地质学报, 2015, 89 (6): 979- 1007.
	Zou Caineng , Yang Zhi , Zhu Rukai , et al. Progress in china's unconventional oil & gas exploration and development and theoretical technologies[J]. Acta Geologica Sinica, 2015, 89 (6): 979- 1007.
24	林拓, 张金川, 包书景, 等. 湘西北下寒武统牛蹄塘组页岩气井位优选及含气性特征:以常页1井为例[J]. 天然气地球科学, 2015, 26 (2): 312- 319.
	Lin Tuo , Zhang Jinchuan , Bao Shujing , et al. The optimum selecting of shale gas well location and gas content of lower Cambrian, northwest Hunan:A case study of well changye[J]. Natural Gas Geoscience, 2015, 26 (2): 312- 319.
25	Bowker K A . Barnett shale gas production, fort worth basin:issues and discussion[J]. AAPG Bulletin, 2007, 91 (4): 523- 533. doi: 10.1306/06190606018
26	Chalmers G R , Bustin R M , Power I M . Characterization of gas shale pore systems by porosimetry, pycnometry, surface area, and field emission scanning electron microscopy/transmission electron microscopy image analyses:Examples from the Barnett, Woodford, Haynesville, Marcellus, and Doig units[J]. AAPG Bulletin, 2012, 96 (6): 1099- 1119. doi: 10.1306/10171111052
27	张慧, 李贵红, 晋香兰. 南方下古生界页岩中有机质赋存状态及其成因[J]. 煤田地质与勘探, 2018, 46 (1): 51- 55.
	Zhang Hui , Li Guihong , Jin Xianglan . Organic matters and their occurrence state in lower Paleozoic shale in South China[J]. Coal Geology & Exploration, 2018, 46 (1): 51- 55.
28	胡宗全, 杜伟, 彭勇民, 等. 页岩微观孔隙特征及源-储关系:以川东南地区五峰组-龙马溪组为例[J]. 石油与天然气地质, 2015, 36 (6): 1001- 1008.
	Hu Zongquan , Du Wei , Peng Yongmin , et al. Microscopic pore chara-cteristics and the source-reservoir relationship of shale:A case study from the Wufeng and longmaxi formations in Southeast Sichuan basin[J]. Oil & Gas Geology, 2015, 36 (6): 1001- 1008.
29	Loucks R G , Reed R M , Ruppel S C , 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- 1098. doi: 10.1306/08171111061
30	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- 861. doi: 10.2110/jsr.2009.092
31	Klaver J , Desbois G , Urai J L , et al. BIB-SEM study of the pore space morphology in early mature Posidonia Shale from the Hils area, Germany[J]. International Journal of Coal Geology, 2012, 103, 12- 25. doi: 10.1016/j.coal.2012.06.012
32	孟凡洋, 陈科, 包书景, 等. 湘西北复杂构造区下寒武统页岩含气性及主控因素分析:以慈页1井为例[J]. 岩性油气藏, 2018, 30 (5): 29- 39.
	Meng Fanyang , Chen Ke , Bao Shujing , et al. Gas-bearing property and main controlling factors of Lower Cambrian shale in complex tectonic area of Northwestern Hunan Province:a case of well Ciye 1[J]. Lithologic Reservoirs, 2018, 30 (5): 29- 39.
33	Ambrose R J, Hartman R C, Diaz Campos M, et al.New pore-scale considerations for shale gas in place calculations[C]//SPE Unconventional Gas Conference, Pittsburgh, Pennsylvania, USA.Society of Petroleum Engineers, 2010.
34	张伦友, 张向阳. 天然气储量计算及其参数确定方法[J]. 天然气勘探与开发, 2004, 27 (2): 20- 23, 2.
	Zhang Lunyou , Zhang Xiangyang . Natural gas reserves calculation and its parameter determination[J]. Natural Ctas Exploraiton & Dev Elopment, 2004, 27 (2): 20- 23, 2.
35	Wan Yi , Tang Shuheng , Pan Zhejun . Evaluation of the shale gas potential of the lower Silurian longmaxi formation in northwest Hunan Province, China[J]. Marine and Petroleum Geology, 2017, 79, 159- 175. doi: 10.1016/j.marpetgeo.2016.11.010
36	Yang F , Ning Z , Wang Q , et al. 'Pore structure characteristics of lower Silurian shales in the southern Sichuan Basin, China:Insights to pore development and gas storage mechanism'[J]. International Journal of Coal Geology, 2016, 156, 12- 24. doi: 10.1016/j.coal.2015.12.015
37	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[J]. 地球科学, 2017, 42 (7): 1057- 1068.
	Zhai Gangyi , Wang Yufang , Bao Shujing , et al. Major factors controlling the accumulation and high productivity of marine shale gas and prospect forecast in southern China[J]. Earth Science, 2017, 42 (7): 1057- 1068.
38	王鹏万, 李昌, 张磊, 等. 五峰组-龙马溪组储层特征及甜点层段评价:以昭通页岩气示范区A井为例[J]. 煤炭学报, 2017, 42 (11): 2925- 2935.
	Wang Pengwan , Li Chang , Zhang Lei , et al. Characteristic of the shale gas reservoirs and evaluation of sweet spotin Wufeng-Longmaxi Formation:A case from the A well in Zhaotong shale gas demonsration zone[J]. Journal of China Coal Society, 2017, 42 (11): 2925- 2935.
39	秦明阳.湘西北地质条件复杂区古生界页岩气聚集特征与"甜点"研究[D].长沙:中南大学, 2018: 97-98, 121-122.
	Qin Mingyang.Paleozoic shale gas accumulation characteristics and "Sweetspots" study in complex geological conditions area innorthwestern Hunan[D].Changsha: Central south university, 2018: 97-98, 121-122.

层位	井名	深度/m	TOC/%	R_o/%	矿物组成含量/%			来源
层位	井名	深度/m	TOC/%	R_o/%	石英	碳酸盐岩	粘土矿物	来源
五峰组-龙马溪组	永页1	514~532	0.98~3.47(1.98)	2.36~2.48(2.40)	37.00~66.00(50.30)	4.50	28.00~40.00(31.30)	本文
	永页2	1 508~1 523	2.21~3.53(2.84)	2.01~2.06(2.03)	34.60~62.20(47.90)	0~22.70(6.80)	14.00~54.20(26.90)
	龙参2	1 897~1 922	1.00~5.96(3.7)	2.24~2.76(2.48)	41.20~62.20(53.70)	2.30~9.80(6.60)	15.20~35.30(23.60)
	桑页1	1 567~1 595	0.60~2.08(1.56)	2.40~3.20(2.80)	—	—	—
	焦页1	2 328~2 415	0.55~5.89(2.54)	2.20~3.13(2.65)	33.90~80.30(48.00)	—	22.60~51.80(33.00)	[22]
	长宁	—	1.90~7.30(4.00)	2.30~3.80(2.5)	25.80~67.60(41.10)	0~43.30(20.50)	10.30~52.80(30.50)
	威201	1 503~1 543	2.60~5.30(3.20)	1.90~2.90(2.50)	16.70~72.80(40.00)	9.20~65.20(21.80)	—	[23]
牛蹄塘组	常页1	1 103~1 224	0.03~17.6(10.10)	2.02~3.13(2.60)	26.00~94.00(52.30)	0~85.00(8.70)	3.00~48.00(27.90)	[16, 24]
	常页1	1 288~ 1 344	0.75~9.89(8.20)	2.02~3.13(2.60)	26.00~94.00(52.30)	0~85.00(8.70)	3.00~48.00(27.90)	[16, 24]
	花页1	2 483~2 508	1.27~9.94(2.4)	2.00~3.60(2.80)	21.40~70.40(43.00)	6.80~58.80(20.40)	8.90~45.30(27.70)	本文
	花页1	2 526~2 595	1.16~13.30(7.00)	2.00~3.60(2.80)	21.40~70.40(43.00)	6.80~58.80(20.40)	8.90~45.30(27.70)	本文
	慈页1	2 620~2 653	1.61~3.22(2.28)	1.52~2.04(1.76)	27.60~59.10(41.60)	3.80~37.90(15.30)	16.90~42.90(27.20)	本文
	慈页1	2 690~2 732	1.18~6.44(3.93)	1.52~2.04(1.76)	27.60~59.10(41.60)	3.80~37.90(15.30)	16.90~42.90(27.20)
	威201	2 652~2 704	2.00~3.60(2.80)	3.20~3.60(3.30)	29.00~72.50(38.50)	2.10~15.60(8.50)	—
	宜地2	1 728	0.52~5.96(2.05)	2.18~2.30(2.26)	5.10~55.7(25.57)	6.40~87.9(36.97)	2.70~61.30(33.30)	[23]
	鄂阳页1	3 055	4.98~5.48(5.20)	2.70	30.20~50.20(39.30)	10.90~29.20(17.70)	9.50~25.80(15.50)	[5]
	1 957	3.20	2.25	46.70	7.80	36.30		[5]

孔隙特征	SEM观察	TOC/%	BET比表面积/(m²·g^-1)	V_BJH/(10^-3cm³·g^-1)	V_L/(cm³·g^-1)
以四面开口的锥形平行板孔为主	粒间孔、粘土矿物层间裂缝	＜2	＜4	＜6	＜4
规则的两端开口圆筒孔和狭窄的平行板孔	有机质孔、粒间孔、粘土矿物层间裂缝	2~8	4~15	6~20	4~6
狭窄的平行板孔、四面开口锥形平板孔和两端开口的锥形管孔	有机质孔、粒间孔、粘土矿物层间裂缝、晶间孔	＞8	＞15	＞20	＞6

层位	井号	总含气量/(m³·t^-1)	具体特征
Barnett		4.2~9.9	吸附气体积分数20%
五峰组-龙马溪组	焦页1	0.44~5.19，平均1.97	吸附气体积分数20%~40%
五峰组-龙马溪组	永页2	1.0~3.5	解吸气体积分数33.8%~79.0%，平均55.4%；残余气体积分数4.0%~40.5%，平均20.4%
五峰组-龙马溪组	龙参2	1.56~3.04	残余气仅0.22~0.31 m³/t
水井沱组	宜页1	0.58~5.48，平均为2.05	解吸气和损失气体积分数高，有工业气流
牛蹄塘组	慈页1	0.33~0.95，平均0.68	残余气体积分数44.8%~83.5%，平均69.7%；而解吸气体积分数只占8.3%~22.3%，平均14.9%

沉积相	深水泥质陆棚
岩性	硅质页岩、炭质页岩
厚度/m	20~40
TOC/%	4~8
石英含量/%	＞40
粘土矿物含量/%	30~40
碳酸盐岩含量/%	＜20
V_BJH/(cm³·g^-1)	(10~17)×10^-3
V_L/(cm³·g^-1)	4~6
游离气体积分数/%	＞40
弹性模量/GPa	25~35
泊松比	0.20~0.25

[1]	Ning LI, Ruilei LI, He MIAO, Kaifang CAO, Jun TIAN. Stepwise identification of favorable facies belts and reservoir sweet spots of deep intermediate-basic volcanic rocks in the Songliao Basin [J]. Oil & Gas Geology, 2024, 45(3): 801-815.
[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]	Zhe ZHAO, Bin BAI, Chang LIU, Lan WANG, Haiyan ZHOU, Yuxi LIU. Current status， advances， and prospects of CNPC’s exploration of onshore moderately to highly mature shale oil reservoirs [J]. Oil & Gas Geology, 2024, 45(2): 327-340.
[4]	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.
[5]	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.
[6]	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.
[7]	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.
[8]	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.
[9]	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.
[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]	Qian ZHANG, Zhijun JIN, Rukai ZHU, Quanyou LIU, Rui ZHANG, Guanping WANG, Wanli CHEN, Ralf Littke. Remarkable issues of Rock-Eval pyrolysis in the assessment of shale oil/gas [J]. Oil & Gas Geology, 2023, 44(4): 1020-1032.
[12]	Zhijun JIN, Qian ZHANG, Rukai ZHU, Lin DONG, Jinhua FU, Huimin LIU, Lu YUN, Guoyong LIU, Maowen LI, Xianzheng ZHAO, Xiaojun WANG, Suyun HU, Yong TANG, Zhenrui BAI, Dongsheng SUN, Xiaoguang LI. Classification of lacustrine shale oil reservoirs in China and its significance [J]. Oil & Gas Geology, 2023, 44(4): 801-819.
[13]	Bin BAI, Chaocheng DAI, Xiulin HOU, Liang YANG, Rui WANG, Lan WANG, Siwei Meng, Ruojing DONG, Yuxi LIU. Geological heterogeneity of shale sequence and evaluation of shale oil sweet spots in the Qingshankou Formation， Songliao Basin [J]. Oil & Gas Geology, 2023, 44(4): 846-856.
[14]	Senlin YIN, Xu CHEN, Yi YANG, Tong ZHANG, Huanghui CHENG, Tao JIANG, Ting XIONG, Juanxia LIU, Lipeng HE, Xiaojiang YANG. Origin and sweet spots of typical low-resistivity oil reservoirs of fine-grained sedimentary rocks [J]. Oil & Gas Geology, 2023, 44(4): 946-961.
[15]	Keqiang WU, Xinong XIE, Jianxiang PEI, Jianye REN, Li YOU, Tao JIANG, Yongbin QUAN. Deep architecture of hyperextended marginal basin and implications for hydrocarbon exploration：A case study of Qiongdongnan Basin [J]. Oil & Gas Geology, 2023, 44(3): 651-661.

Identification and optimization of shale gas "sweet spots" in marine Niutitang Formation, South China

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 14

References 39

Related Articles 15

Recommended Articles

Metrics