准噶尔盆地沙湾凹陷周缘中、浅层天然气地球化学特征及成因

doi:10.11743/ogg20220114

Abstract

Abstract:

Natural gas on the periphery of Shawan Sag， is generally derived from mixed sources. A lack of holistic study on this area in the early stage has restricted the understanding of natural gas accumulation therein. In this regard， a systematic analysis of geochemical characteristics of the natural gas is carried out by means of source-rock thermal simulation， by which the genetic types of mid-to-shallow gas on the periphery of the Shawan Sag are identified. The research results show that the natural gas in the study area is dominated by methane， with a drying coefficient ranging from 0.73 to 1.00， and a δ¹³C₁ value from -56.0 ‰ to -31.5 ‰， indicating coexistence of mature and high-to-over-mature natural gas therein. A δ¹³C₂ value varying between -30.4 ‰ and -22.8 ‰ reflects a mixed distribution of coaliferous， petroliferous and mixed gas. In addition， the analysis of carbon isotopic characteristics of source-rock pyrolysis gas， shows that the natural gas in the study area is of 4 types in genesis： Type Ⅰ natural gas， featuring a very high δ¹³C₂ value greater than -25.5 ‰ and a methylcyclohexane content greater than 50 % in lighter hydrocarbon C7， is derived from source rocks of the Jiamuhe Formation， and mainly distributed in the Cretaceous in the middle of Hongche fault belt； Type Ⅱ natural gas of sparse distribution is mainly secondary biogas from crude oil degradation， with an abnormally negative δ¹³C₁ value and an extremely high drying coefficient； Type Ⅲ natural gas is originated from the Xiawuerhe Formation source rocks and mainly distributed in the Jurassic Formation in Xiaoguai area and southern Hongche fault belt， with a δ¹³C₂ value varying from -27.9 ‰ to -26.4 ‰， a characteristic of mixed source rocks； and Type Ⅳ natural gas is mainly derived from source rocks of both Xiawuerhe Formation and Fengcheng Formation， and mainly distributed in the southern Hongche fault belt and northern Jinlong area. Among others， the natural gas mainly derived from the Xiawuerhe Formation features a δ¹³C₂ value greater than -29 ‰， and that from the Fengcheng Formation features a δ¹³C₂ value less than -29 ‰.

Key words: carbon isotope, thermal simulation, petroliferous gas, coaliferous gas, biogas from crude oil degradation, natural gas, Shawan Sag, Junggar Basin

CLC Number:

TE122.1

Erting Li, Jun Jin, Jian Wang, Wanyun Ma, Shijia Chen, Cuimin Liu, Haijing Wang. Geochemical characteristics and genesis of mid-to-shallow natural gas on the periphery of Shawan Sag， Junggar Basin[J]. Oil & Gas Geology, 2022, 43(1): 175-185.

Figures/Tables 8

Fig.1

Table 1

Table 2

Fig.2

Fig.3

Table 3

Fig.4

Fig.5

References 30

1	张义杰，王绪龙，刘得光. 准噶尔盆地天然气资源勘探战略与对策［J］. 新疆石油地质， 2001， 22（5）： 386-389.
	Zhang Yijie， Wang Xulong， Liu Deguang. The measures and strategy for exploration of natural gas resources in Junggarbasin［J］. Xinjiang Petroleum Geology， 2001， 22（5）： 386-389.
2	柳广弟，张义杰. 准噶尔盆地复合油气系统特征、演化与油气勘探方向［J］. 石油勘探与开发， 2002， 29（1）： 36-39.
	Liu Guangdi， Zhang Yijie. Characteristics and evolution of composite petroleum systems and the exploration strategy in Junggar basin， northwest China［J］. Petroleum Exploration and Development， 2002， 29（1）： 36-39.
3	张枝焕，秦黎明，李伟，等. 准噶尔盆地腹部车莫古隆起南北两侧含油构造油源及烃源灶转移［J］. 中国地质， 2009， 36（4）： 826-836.
	Zhang Zhihuan， Qin Liming， Li Wei， et al. The distribution of oil sources and the transformation of hydrocarbon kitchens in oil⁃bea⁃ring structural belts on northern and southern sides of the Chemo plaeo⁃uplift within central Junggarbasin［J］. Chinese Geology， 2009， 36（4）： 826-836.
4	李建忠，郑民，郭秋麟，等. 第四次油气资源评价［M］. 北京：石油工业出版社， 2019.
	Li Jianzhong， Zheng Min， Guo Qiulin， et al. Fourth assessment for oil and gas resource［M］. Beijing：Petroleum Industry Press， 2019.
5	何登发，陈新发，况军，等. 准噶尔盆地石炭系烃源岩分布与含油气系统［J］. 石油勘探与开发， 2010， 37（4）： 397-408.
	He Dengfa， Chen Xinfa， Kuang Jun， et al. Distribution of Carboniferous source rocks and petroleum systems in the Junggarbasin［J］. Petroleum Exploration and Development， 2010， 37（4）： 397-408.
6	潘建国，郝芳，谭开俊，等. 准噶尔盆地西北缘天然气特征及成藏规律［J］. 石油天然气学报， 2007， 29（2）： 20-23.
	Pan Jianguo， Hao Fang， Tan Kaijun， et al. Characteristics of natural gas and rules of hydrocarbon accumulation in the northwest margin of Junggarbasin［J］. Journal of Oil and Gas Technology， 2007， 29（2）： 20-23.
7	陈建平，王绪龙，邓春萍，等. 准噶尔盆地烃源岩与原油地球化学特征［J］. 地质学报， 2016， 90（1）： 37-67.
	Chen Jianping， Wang Xulong， Deng Chunping， et al. Geochemical features of source rocks and crude oil in the Junggar basin， northwest China［J］. Acta Geologica Sinica， 2016， 90（1）： 37-67
8	陈建平，查明，周瑶琪，等. 准噶尔盆地克拉玛依油田油气运聚期次及成藏研究［J］. 中国海上油气（地质）， 2002， 16（1）： 19-22.
	Chen Jianping， Zha Ming， Zhou Yaoqi， et al. Hydrocarbon migration stages and accumulation in Karamay oilfield， Junggar basin［J］. China Offshore Oil and Gas（Geology）， 2002， 16（1）： 19-22.
9	柳波，贺波，黄志龙，等. 准噶尔盆地西北缘不同成因类型天然气来源及其分布规律［J］. 天然气工业， 2014， 34（9）： 40-46.
	Liu Bo， He Bo， Huang Zhilong， et al. Sources and distribution patterns of natural gas of different genetic types at the northwestern margin of the Junggar Basin［J］. Natural Gas Industry， 2014， 34（9）： 40-46.
10	杨鹏程，高先志，马俊，等. 车排子凸起西南缘油气来源与成藏过程［J］. 海洋石油， 2015， 35（4）： 13-19.
	Yang Pengcheng， Gao Xianzhi， Ma Jun， et al. Oil source and hydrocarbon accumulation process in southwest of Chepaizi uplift［J］. Offshore Oil， 2015， 35（4）： 13-19.
11	赵爱文，王振奇，李伟强. 准噶尔盆地西北缘红车断裂带油气来源与成藏模式［J］. 西安石油大学学报（自然科学版）， 2015， 30（5）： 16-22.
	Zhao Aiwen， Wang Zhenqi， Li Weiqiang. Hydrocarbon sources and accumulation modes of Hongche fault zone in the northwestern margin of Junggar Basin［J］. Journal of Xi'an Shiyou University（Natural Science）， 2015， 30（5）： 16-22.
12	李二庭，靳军，曹剑，等. 准噶尔盆地新光地区佳木河组天然气地球化学特征及成因［J］. 天然气地球科学， 2019， 30（9）： 1362-1369.
	Li Erting， Jin Jun， Cao Jian， et al. Geochemical characteristics and genesis of natural gas in Jiamuhe Formation in Xinguang area， Junggar basin［J］. Natural Gas Geoscience， 2019， 30（9）： 1362-1369.
13	戴金星，秦胜飞，陶士振，等. 中国天然气工业发展趋势和天然气地学理论重要进展［J］. 天然气地球科学， 2005， 16（2）： 127-142.
	Dai Jinxing， Qin Shengfei， Tao Shizhen， et al. Developing trends of natural gas industry and the significant progress on natural gas geological theories in China ［J］. Natural Gas Geoscience， 2005， 16（2）： 127-142.
14	秦黎明，张枝焕，朱雷，等. 准噶尔盆地南缘中二叠统烃源岩封闭体系生烃热模拟实验分析［J］. 天然气地球科学， 2011， 22（5）： 860-865.
	Qin Liming， Zhang Zhihuan， Zhu Lei， et al. Productions of closed system experiments for middle Permian source rock in southern Junggar basin［J］. Natural Gas Geoscience， 2011， 22（5）： 860-865.
15	马万云，迪丽达尔·肉孜，李际，等. 准噶尔盆地南缘侏罗系烃源岩生烃特征［J］. 新疆石油地质， 2020， 41（1）： 31-37.
	Ma Wanyun， Rouzi Dilidaer， Li Ji， et al. Hydrocarbon generation of Jurassic source rocks in the southern margin of Junggar basin［J］. Xinjiang Petroleum Geology， 2020， 41（1）： 31-37.
16	胡安文，王德英，于海波，等. 渤海湾盆地渤中19-6凝析气田天然气成因及油气成因关系判识［J］. 石油与天然气地质， 2020， 41（5）： 903-912.
	Hu Anwen， Wang Deying， Yu Haibo， et al. Genesis of natural gas and genetic relationship between the gas and associated condensate in Bozhong 19-6 gas condensate field，Bohai Bay Basin［J］. Oil & Gas Geology， 2020， 41（5）： 903-912.
17	范东稳，卢振权，李广之，等. 南祁连盆地木里坳陷石炭系-侏罗系天然气水合物气源岩有机地球化学特征［J］. 石油与天然气地质， 2020， 41（2）： 348-358.
	Fan Dongwen， Lu Zhenquan， Li Guangzhi， et al. Organic geoche⁃mical characteristics of the Carboniferous⁃Jurassic potential source rocks for natural gas hydrates in the Muli Depression，Southern Qilian Basin［J］. Oil & Gas Geology， 2020， 41（2）： 348-358.
18	戴金星. 各类烷烃气的鉴别［J］. 中国科学（B辑）， 1992， 22（2）：185-193.
	Dai Jinxing. Identification of different hydrocarbon gas［J］. Science in China（Series B）， 1992， 22（2）： 185-193.
19	Pallasser R J. Recognising biodegradation in gas/oil accumulationsthrough the δ¹³C compositions of gas components［J］. Organic Geochemistry， 2000， 31（12）： 1363-1373.
20	Hu Guoyi， Li Jin， Shan Xiuqin， et al. The origin of natural gas and the hydrocarbon charging history of the Yulin gas field in the Ordos basin， China［J］. International Journal of Coal Geology， 2010， 81（4）：381-391.
21	孙平安，王绪龙，唐勇，等. 准噶尔盆地浅层天然气多种成因地球化学研究［J］. 地球化学， 2012， 41（2）： 109-121.
	Sun Pingan， Wang Xulong， Tang Yong， et al. Geochemical constraints on the multiple origins of shallow⁃buried natural gases in the Junggar basin［J］. Geochimica， 2012， 41（2）： 109-121.
22	程克明，金伟明，何忠华，等. 陆相原油及凝析油的轻烃单体组成特征及地质意义［J］. 石油勘探与开发， 1987， 14（1）： 33-34.
	Cheng Keming， Jin Weiming， He Zhonghua， et al.Composition characteristics of light hydrocarbons in continental oil and condensate and their geological significance［J］. Petroleum Exploration and Development， 1987， 14（1）： 33-34.
23	孙平安，卞保力，袁云峰，等. 准噶尔盆地南缘天然气地球化学与成因研究［J］. 地球化学， 2015， 44（3）： 275-288.
	Sun Pingan， BianBaoli， Yuan Yunfeng， et al. Natural gas in sou⁃thern Junggar Basin in northwest China： Geochemistry and origin［J］. Geochimica， 2015， 44（3）： 275-288.
24	王培荣，徐冠军，张大江，等. 常用轻烃参数正、异庚烷值应用中的问题［J］. 石油勘探与开发， 2010， 37（1）： 121-128.
	Wang Peirong， Xu Guanjun， Zhang Dajiang， et al. Problems with application of heptanes and isoheptane values as light hydrocarbon parameters［J］. Petroleum Exploration and Development， 2010， 37（1）： 121-128.
25	杨海风，韦恒叶，姜向强，等. 准噶尔盆地西北缘五-八区二叠系天然气类型判别及分布规律研究［J］. 大庆石油地质与开发， 2008， 27（1）： 46-50.
	Yang Haifeng， Wei Hengye， Jiang Xiangqiang， et al. Identification of natural gas types and analysis on its distribution rules in Permian in block No. 5-8 of northwest margin of Junggar basin［J］. Petroleum Geology & Oilfield Development in Daqing， 2008， 27（1）： 46-50.
26	王绪龙，康素芳. 准噶尔盆地腹部及西北缘斜坡区原油成因分析［J］. 新疆石油地质， 1999， 20（2）： 108-112.
	Wang Xulong， Kang Sufang. Analysis of crude origin in hinterland and slope of northwest margin， Junggar basin［J］. Xinjiang Petroleum Geology， 1999， 20（2）： 108-112.
27	李二庭，陈俊，迪丽达尔·肉孜，等. 准噶尔盆地腹部地区原油金刚烷化合物特征及应用［J］. 石油实验地质， 2019， 41（4）： 569-576.
	Li Erting， Chen Jun， Rouzi Dilidaer， et al. Characteristics of diamondoids in crude oil and its application in hinterland of Junggar basin［J］. Petroleum Geology & Experiment， 2019， 41（4）： 569-576.
28	关新，潘树新，曲永强，等. 准噶尔盆地沙湾凹陷滩坝砂的发现及油气勘探潜力［J］. 岩性油气藏， 2021， 33（1）： 90-98.
	Guan Xin， Pan Shuxin， Qu Yongqiang， et al. Discovery and hydrocarbon exploration potential of beach⁃bar sand in Shawan Sag， Junggar Basin［J］. Lithologic Reservoirs， 2021， 33（1）： 90-98.
29	赵爱文，王振奇，李伟强. 准噶尔盆地西北缘红车断裂带油气来源与成藏模式［J］. 西安石油大学学报（自然科学版）， 2015， 30（5）： 16-22.
	Zhao Aiwen， Wang Zhenqi， Li Weiqiang. Hydrocarbon sources and accumulation modes of Hongche fault zone in the northwestern margin of Junggar Basin［J］. Journal of Xi'an Shiyou University（Natural Science Edition）， 2015， 30（5）： 16-22.
30	吴孔友，郭建勋，姚卫江，等. 准噶尔盆地红车断裂带结构与成藏差异性分析［J］. 地质与资源， 2019， 28（1）： 58-65.
	Wu Kongyou， GuoJianxun， Yao Weijiang， et al. Analysis on the structure and accumulation differences of Hongche fault belt in Junggar basin［J］.Geology and Resources， 2019，28（1）： 58-65.

井号	层位	岩性	TOC/%	T_max/℃	HI/（mg·g^-1）
拐16	P₁j	凝灰质泥岩	2.51	433	25.10
克85	P₁j	沉凝灰岩	1.04	445	24.04
581	P₁j	含凝灰泥岩	0.74	408	6.75
风南1	P₁f	白云质泥岩	0.70	437	277.14
风20	P₁f	白云岩	5.51	436	681.20
风南2	P₁f	白云质泥岩	2.18	440	459.17
金探1	P₂w	深灰色泥岩	1.41	450	262.41
玛004	P₂w	泥岩	1.44	436	52.08
克76	P₂w	泥岩	1.77	443	58.19

井区	井号	层位	天然气组分含量/%					C₁/C_1-5	δ¹³C/‰
井区	井号	层位	N₂	C₁	C₂	C₃	C₄₊	C₁/C_1-5	C₁	C₂	C₃
红车断裂带南段	沙门1	J₁s	0.71	92.29	3.06	1.51	1.95	0.94	-31.5	-27.1	-26.3
	沙门1	K₁q	1.71	95.93	1.84	0.39	0.51	0.97	-32.2	-30.3	—
	石桥1	K₁q	7.58	77.55	10.36	3.38	1.11	0.84	-32.6	-26.4	-24.8
红车断裂带中段	车80	K₁q	2.86	94.83	1.51	0.38	0.24	0.98	-33.6	-23.8	-23.4
	车2033	K₁tg	3.04	93.87	1.73	0.38	0.38	0.97	-32.3	-23.2	-19.9
	车83	K₁tg	5.44	86.79	2.82	1.16	1.14	0.95	-31.6	-22.8	-22.0
	沙排1	K₁tg	2.73	95.05	1.31	0.25	0.51	0.98	-31.5	-24.5	—
	红光3	K₁tg	1.64	93.69	2.02	0.65	1.53	0.96	-33.2	-25.4	-25.0
	车排6	K₁q	3.49	93.19	1.77	0.37	0.27	0.98	-32.4	-25.5	-24.4
	车82	J₁b	0.24	95.79	1.79	0.30	1.08	0.97	-44.1	-26.6	—
	车排701	J₁b	2.00	92.32	1.70	0.27	0.46	0.98	-42.3	-27.8	-25.1
红车断裂带北段	拐16	J₁s	0.79	98.46	0.39	0.03	0.04	1.00	-56.0	-25.6	-17.1
	红山4	T₂k	1.42	88.20	4.15	2.15	3.54	0.90	-43.2	-28.8	-23.9
	红山5	T₂k	0.87	90.94	3.49	1.84	2.75	0.92	-34.1	-28.9	-27.2
	红96	T₂k	1.77	92.34	1.79	0.35	1.63	0.96	-35.6	-30.4	-23.4
	红山1	T₂k	3.41	92.09	2.35	0.58	0.96	0.96	-34.9	-30.4	-25.7
小拐地区	中佳4	J₁b	2.69	90.65	2.89	1.98	2.18	0.93	-35.8	-28.0	-28.6
	新光1	J₁b	0.92	84.36	5.03	4.29	4.80	0.86	-35.8	-27.8	-27.7
	中佳3	J₁b	4.73	88.96	2.69	1.29	1.37	0.94	-36.8	-27.6	-27.7
金龙地区	金龙20	T₂k	1.53	93.39	3.11	1.04	0.70	0.95	-32.9	-28.2	-27.9
金龙地区	金龙19	T₂k	1.71	91.33	3.10	1.26	2.16	0.94	-33.9	-29.5	-29.0

井位	井号	层位	气油比/（m³·m^-3）	C₇轻烃组分含量/%			庚烷值	异庚烷值
井位	井号	层位	气油比/（m³·m^-3）	正庚烷	甲基环己烷	二甲基环戊烷	庚烷值	异庚烷值
红车断裂带南段	沙门1	J₁s	157	38.51	43.11	18.38	24.08	1.65
	沙门1	K₁q	93	44.27	38.21	17.53	23.98	1.87
	石桥1	K₁q	气层	44.44	45.04	10.52	5.25	1.16
红车断裂带中段	车80	K₁q	气层	37.07	49.90	13.03	25.63	3.17
	车2033	K₁tg	—	34.07	50.12	15.81	23.05	1.50
	车83	K₁tg	20 629	36.62	51.85	11.53	27.21	1.61
	沙排1	K₁tg	19 136	—	—	—	—	—
	红光3	K₁tg	24 787	37.04	49.29	13.68	30.62	2.90
	车排6	K₁q	气层	32.11	49.84	18.05	22.22	2.67
	车82	J₁b	35	21.29	56.87	21.84	12.40	0.93
	车排701	J₁b	气层	9.50	67.77	22.73	5.12	0.83
红车断裂带北段	拐16	J₁s	229	—	—	—	—	—
	红山4	T₂k	381	28.39	48.26	23.35	1.25	0.99
	红山5	T₂k	327	37.70	42.78	19.52	3.06	1.21
	红96	T₂k	381	46.08	35.27	18.65	20.11	2.70
	红山1	T₂k	0	61.63	12.23	26.14	33.58	0.94
小拐地区	中佳4	J₁b	0	35.71	45.71	18.57	23.15	1.42
	新光1	J₁b	146	35.68	46.85	17.47	22.65	1.48
	中佳3	J₁b	19 456	31.25	43.75	25.00	31.82	1.43
金龙地区	金龙20	T₂k	914	47.54	34.43	18.03	25.22	2.10
金龙地区	金龙19	T₂k	962	56.74	26.60	16.67	31.62	2.90

[1]	Chengpeng Su, Ying He, Xiaobo Song, Bo Dong, Xiaoqi Wu. Reinterpretation of gas sources in the Middle Triassic Leikoupo Formation in Western Sichuan gas field， Sichuan Basin [J]. Oil & Gas Geology, 2022, 43(2): 341-352.
[2]	Xiaoqi Wu, Yingbin Chen, Changbo Zhai, Lingfang Zhou, Xiaojin Zhou, Jun Yang, Yanqing Wang, Xiaobo Song. Geochemical characteristics of bitumen and tracing of gas source in the Middle Triassic Leikoupo Formation， Western Sichuan Depression [J]. Oil & Gas Geology, 2022, 43(2): 407-418.
[3]	Yong Tang, Yong Song, Wenjun He, Long Zhao, Changyong Zhao, Menglin Zheng, Haibo Yang, Shuai Sun, Liying Fei. Characteristics of composite hydrocarbon accumulation in a superimposed basin， Junggar Basin [J]. Oil & Gas Geology, 2022, 43(1): 132-148.
[4]	Linsheng Wang, Yiping Ye, Jianhua Qin, Yang Gao, Yuan Deng, Yingyan Li, Dianshi Xiao. Microscopic pore structure characterization and oil-bearing property evaluation of lacustrine shale reservoir： A case study of the Permian Lucaogou Formation in Jimsar Sag， Junggar Basin [J]. Oil & Gas Geology, 2022, 43(1): 149-160.
[5]	Deyu Gong, Changyong Zhao, Wenjun He, Long Zhao, Yumei Kong, Liya Ma, Ruiju Wang, Wei’an Wu. Genetic types and exploration potential of natural gas at northwestern margin of Junggar Basin [J]. Oil & Gas Geology, 2022, 43(1): 161-174.
[6]	Qinyu Xia, Shenghe Wu, Wenjie Feng, Zhongbao Liu. Controlling effects of syn-depositional reverse fault associated folds on the deposition in alluvial fan sheet glutenites and braided channels: A case study of the Triassic Karamay Formation in Huwan area, northwestern margin of Junggar Basin [J]. Oil & Gas Geology, 2021, 42(2): 509-521.
[7]	Guosheng Qin, Cunyou Zou, Lingbin Lai, Liang Zhao, Haibin Su. Alluvial depositional system and its controlling effect on hydrocarbon accumulation of the Triassic in the Baikouquan area, northwestern Junggar Basin [J]. Oil & Gas Geology, 2020, 41(6): 1197-1211.
[8]	Zhe Mao, Lianbo Zeng, Guoping Liu, Zhiyong Gao, He Tian, Qing Liao, Yunzhao Zhang. Characterization and effectiveness of natural fractures in deep tight sandstones at the south margin of the Junggar Basin, northwestern China [J]. Oil & Gas Geology, 2020, 41(6): 1212-1221.
[9]	Zhiming Chen, Haoshu Chen, Xinwei Liao, Lianbo Zeng, Biao Zhou. Evaluation of fracture networks along fractured horizontal wells in tight oil reservoirs:A case study of Jimusar oilfield in the Junggar Basin [J]. Oil & Gas Geology, 2020, 41(6): 1288-1298.
[10]	Mo Deng, Xinguo Duan, Changbo Zhai, Shengxiang Long, Zhenheng Yang, Lunju Zheng, Zhangchang Li, Taotao Cao. Variation in liquid hydrocarbon content during thermal simulation and its influence on physical property of shale [J]. Oil & Gas Geology, 2020, 41(6): 1310-1320.
[11]	Anwen Hu, Deying Wang, Haibo Yu, Tao Jiang, Zhe Sun. Genesis of natural gas and genetic relationship between the gas and associated condensate in Bozhong 19-6 gas condensate field, Bohai Bay Basin [J]. Oil & Gas Geology, 2020, 41(5): 903-912, 984.
[12]	Fengqi Zhang, Xuesong Lu, Qingong Zhuo, Hongli Zhong, Pei Zhang, Chi Wei, Wei Liu. Genetic mechanism and evolution characteristics of overpressure in the lower play at the southern margin of the Junggar Basin, northwestern China [J]. Oil & Gas Geology, 2020, 41(5): 1004-1016.
[13]	Daxiang He, Youjun Tang, Jinjie Hu, Shaowu Mo, Jianfa Chen. Geochemical characteristics of noble gases in natural gases from the Tarim Basin [J]. Oil & Gas Geology, 2020, 41(4): 755-762.
[14]	Xiaoqin Jiao, Huapeng Niu, Qingbin Xie, Yongshu Zhang, Junwei Li, Zhixiong Wu, Bo Wang, Xin Li. Characteristics of basement reservoirs and setting for natural gas accumulation in Jianbei slope, Qaidam Basin [J]. Oil & Gas Geology, 2020, 41(2): 305-315.
[15]	Dongwen Fan, Zhenquan Lu, Guangzhi Li, Rui Xiao. Organic geochemical characteristics of the Carboniferous-Jurassic potential source rocks for natural gas hydrates in the Muli Depression, Southern Qilian Basin [J]. Oil & Gas Geology, 2020, 41(2): 348-358.

Geochemical characteristics and genesis of mid-to-shallow natural gas on the periphery of Shawan Sag， Junggar Basin

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 8

References 30

Related Articles 15

Recommended Articles

Metrics