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

doi:10.11743/ogg20200211

Abstract

Abstract:

During the investigation of the basic geological profile of natural gas hydrates in the Muli Depression, Southern Qilian Basin, we analyzed the carbon-rich mudstone and mudstone sampled from 5 sections of the Carboniferous, Per-mian, Triassic and Jurassic sequences.The geochemical characteristics such as organic matter abundance, organic matter type and organic matter maturity of four sequences were accordingly studied in detail.The organic geochemical indexes of each sequence were analyzed and compared in order to explore the gas source rock qualities for different sequences of (gas) source rocks for natural gas hydrates.The results show that the Carboniferous-Permian organic matter abundance is relatively low, the TOC (total organic carbon) content is generally less than 0.4%, both of which indicate the source rocks are very lean.The kerogen are mainly over-matured TypesⅡ and Ⅲ organic matters, resulting in poor hydrocarbon generation capacity.Thus, the source rocks could not be the potential gas source rocks for natural gas hydrate generation.The samples collected from the Triassic strata have TOC value of generally greater than 1% and an average chloroform bitumen "A" of 0.89, which are mostly good and very good source rock samples, with a small number of samples with poor or non-hydrocarbon source rock quality.The organic materials are mainly matured Type Ⅲ as a whole with a small number of Type Ⅱ₂, with a vitrinite reflectance (R_o) value of 0.74%-0.98%.These strata can be viewed as the main potential gas source rocks for natural gas hydrate generation.The Jurassic strata are dominated by source rocks of very good, good, and medium qualities with limited number of poor source rocks.Their organic materials are mainly matured Type Ⅱ and Ⅲ with a R_o value of 0.62%-0.97%, and thus can be regarded as the secondary potential gas source rocks for the generation of natural gas hydrates.

Key words: organic geochemistry, natural gas hydrate, gas source rock, Muli Depression, Southern Qilian Basin

CLC Number:

TE122.1

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.

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References 50

1	Sloan E D , Koh C A . Clathrate hydrates of natural gases, Third edition[M]. New York: CRC Press of Tayor & FrancisGroup, 2008: 1- 721.
2	Kvenvolden K A . Methane hydrate-a major reservoir of carbonin the shallow geosphere[J]. Chemical Geology, 1988, 71, 41- 51.
3	Makogon Y F , Holditch S A , Makogon T Y . Natural gas hydrates-A potential energy source for the 21st Century[J]. Journal of Petroleum Science and Engineering, 2007, 56, 14- 31.
4	周幼吾, 郭东信, 邱国庆, 等. 中国冻土[M]. 北京: 科学出版社, 2000: 40- 42.
	Zhou Youwu , Guo Dongxin , Qiu Guoqing , et al. Geocryology in China[M]. Beijing: Science Press, 2000: 40- 42.
5	张立薪, 徐学祖, 马巍. 青藏高原多年冻土与天然气水合物[J]. 天然气地球科学, 2001, 12 (1): 22- 26.
	Zhang Lixin , Xu Xuezu , Ma Wei . Permafrost and gas hydrate in Qinghai-Tibet Plateau[J]. Natural Gas Geoscience, 2001, 12 (1): 22- 26.
6	黄朋, 潘桂棠, 王立全, 等. 青藏高原天然气水合物资源预测[J]. 地质通报, 2002, 21 (11): 794- 798.
	Huang Peng , Pan Guitang , Wang Liquan , et al. Prospect evaluation of natural gas hydrate resources on the Qinghai-Tibet Plateau[J]. Geological Bulletin of China, 2002, 21 (11): 794- 798.
7	石思思, 陈星州, 马健, 等. 南海北部神狐海域W19井天然气水合物储层类型与特征[J]. 特种油气藏, 2019, 26 (3): 24- 29.
	Shi Sisi , Chen Xingzhou , Ma Jian , et al. Natural Gas Hydrate Reservoir Classification and Characterization in the Well W19 of Shenhu Sea Area, northern South China Sea[J]. Special Oil & Gas Reservoirs, 2019, 26 (3): 24- 29.
8	孙可明, 王婷婷, 翟诚, 等. 不同饱和度天然气水合物加热分解界面变化规律[J]. 特种油气藏, 2018, 25 (5): 129- 134.
	Sun Keming , Wang Tingting , Yu Cheng , et al. Heating Decomposition Interface of Natural Gas Hydrate with Different Saturations[J]. Special Oil & Gas Reservoirs, 2018, 25 (5): 129- 134.
9	陈多福, 王茂春, 夏斌. 青藏高原冻土带天然气水合物的形成条件与分布预测[J]. 地球物理学报, 2005, 48 (1): 165- 172.
	Chen Duofu , Wang Maochun , Xia Bin . Formation condition and distribution prediction of gas hydrate in Qinghai-Tibet Plateau permafrost[J]. Chinese Journal of Geophysics, 2005, 48 (1): 165- 172.
10	吴青柏, 蒋观利, 蒲毅彬, 等. 青藏高原天然气水合物的形成与多年冻土的关系[J]. 地质通报, 2006, 25 (1/2): 29- 33.
	Wu Qingbai , Jiang Guanli , Pu Yibin , et al. Relationship between permafrost and gas hydrates on Qinghai-Tibet Plateau[J]. Geological Bulletin of China, 2006, 25 (1-2): 29- 33.
11	卢振权, SultanN, 金春爽, 等. 青藏高原多年冻土区天然气水合物形成条件模拟研究[J]. 地球物理学报, 2009, 52 (1): 157- 168.
	Lu Zhenquan , Sultan N , Jin Chunshuang , et al. Modeling on gas hydrate formation conditions in the Qinghai-Tibet plateau permafrost[J]. Chinese Journal of Geophysics, 2009, 52 (1): 157- 168.
12	坚润堂, 李峰, 王造成. 青藏高原冻土区活动带天然气水合物异常特征[J]. 西南石油大学学报(自然科学版), 2009, 31 (2): 13- 17.
	Jian Runtang , Li Feng , Wang Zaocheng . The gas hydrate abnormality in the movable zone of the Qinghai-Tibet plateau permafrost[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2009, 31 (2): 13- 17.
13	祝有海, 赵省民, 卢振权. 中国冻土区天然气水合物的找矿选区及其资源潜力[J]. 天然气工业, 2011, 31 (1): 13- 19.
	Zhu Youhai , Zhao Shengmin , Lu Zhenquan . Resource potential and reservoir distribution of natural gas hydrate in permafrost areas of China[J]. Natural Gas Industry, 2011, 31 (1): 13- 19.
14	卢振权, 祝有海, 张永勤, 等. 青海省祁连山冻土区天然气水合物存在的主要依据[J]. 现代地质, 2010, 24 (2): 329- 336.
	Lu Zhenquan , Zhu Youhai , Zhang Yongqin , et al. Major evidence for gas hydrate existence in the Qilian Permafrost Qinghai[J]. Geoscie-nce, 2010, 24 (2): 329- 336.
15	祝有海, 张永勤, 文怀军. 祁连山冻土区天然气水合物科学钻探工程概况[J]. 地质通报, 2011, 30 (12): 1816- 1822.
	Zhu Youhai , Zhang Yongqin , Wen Huaijun . An overview of the Scientific Drilling Project of Gas Hydrate in Qilian Mountain Permafrost, northwestern China[J]. Geological Bulletin of China, 2011, 30 (12): 1816- 1822.
16	祝有海, 卢振权, 谢锡林. 青藏高原天然气水合物潜在分布区预测[J]. 地质通报, 2011, 30 (12): 1918- 1926.
	Zhu Youhai , Lu Zhenquan , Xie Xilin . Potential distribution of gas hydrate in the Qinghai-Tibetan Plateau[J]. Geological Bulletin of China, 2011, 30 (12): 1918- 1926.
17	张敏, 何瑜, 陈祖林, 等. 祁连山冻土区天然气水合物中轻烃分析方法及应用[J]. 石油实验地质, 2018, 40 (3): 418- 423.
	Zhang Min , He Yu , Chen Zulin , et al. Analysis method and geological significance of C5-C7 light hydrocarbons in natural gas hydrate in permafrost, Qilian Mountain[J]. Petroleum Geology & Experiment, 2018, 40 (3): 418- 423.
18	唐世琪, 卢振权, 王伟超, 等. 青海木里三露天冻土区天然气水合物钻孔岩心顶空气组成及指示意义[J]. 现代地质, 2015, (5): 1201- 1213.
	Tang Shiqi , Lu Zhenquan , Wang Weichao , et al. The indicative signifi-cance of gas composition of headspace gases from the gas hydrate drilling holes in the Sanlutian mine of the Muli mining area, Qinghai[J]. Geoscience, 2015, (5): 1201- 1213.
19	卢振权, 翟刚毅, 文怀军, 等. 青海木里三露天冻土区天然气水合物形成与分布地质控制因素[J]. 现代地质, 2015, (5): 1002- 1013.
	Lu Zhenquan , Zhai Gangyi , Wen Huaijun , et al. Geological constraints on gas hydrate formation and distribution in Sanlutian permafrost of Muli, Qinghai[J]. Geoscience, 2015, (5): 1002- 1013.
20	卢振权, 李永红, 王伟超, 等. 青海木里三露天冻土天然气水合物成藏模式研究[J]. 现代地质, 2015, (5): 1014- 1023.
	Lu Zhenquan , Li Yonghong , Wang Weichao , et al. Study on the accumulation pattern for permafrost-associated gas hydrate in Sanlutian of Muli, Qinghai[J]. Geoscience, 2015, (5): 1014- 1023.
21	文怀军, 卢振权, 李永红, 等. 青海木里三露天井田天然气水合物调查研究新进展[J]. 现代地质, 2015, (5): 983- 994.
	Wen Huaijun , Lu Zhenquan , Li Yonghong , et al. New advance on gas hydrate survey and research in Sanlutian of Muli, Qinghai[J]. Geoscience, 2015, (5): 983- 994.
22	孙林, 杨万有, 李旭光, 等. 天然气水合物酸化-自生热气开采技术研究[J]. 特种油气藏, 2018, 25 (3): 149- 153.
	Sun Lin , Yang Wanyou , Li Xuguang , et al. Natural Gas Hydrate Acidizing-Self-Generated Hot-Gas Recovery[J]. Special Oil & Gas Reservoirs, 2018, 25 (3): 149- 153.
23	吕景高, 邵龙义, 张文龙, 等. 青海木里聚乎更矿区木里组煤层发育特征及煤层对比[J]. 中国煤炭地质, 2016, 28 (5): 14- 19.
	Lv Jinggao , Shao Longyi , Zhang Wenlong , et al. Development features and correlation of Muli Formation coal seams in Juhugeng mine area, Muli coalfield, Qinghai[J]. Coal Geology of China, 2016, 28 (5): 14- 19.
24	符俊辉, 周立发. 南祁连盆地石炭-侏罗纪地层区划及石油地质特征[J]. 西北地质科学, 1998, (2): 47- 54.
	Fu Junhui , Zhou Lifa . Carboniferous-Jurassic stratigraphic provinces of the southern Qilian basin and their petro-geological features[J]. Northwest Geoscience, 1998, (2): 47- 54.
25	郝爱胜, 李剑, 王东良, 等. 南祁连盆地石炭系与上三叠统尕勒得寺组烃源岩地球化学特征[J]. 非常规油气, 2016, 3 (1): 7- 13.
	Hao Aisheng , Li Jian , Wang Dongliang , et al. Biomarker characteristics of source rock of carboniferous and upper Triassic Galedesi formation in Southern Qilian Basin[J]. Unconventonal Oil & Gas, 2016, 3 (1): 7- 13.
26	唐世琪, 卢振权, 王伟超, 等. 青海木里三露天天然气水合物气源岩有机地球化学特征[J]. 现代地质, 2015, (5): 1214- 1222.
	Tang Shiqi , Lu Zhenquan , Wang Weichao , et al. Organic geochemical characteristics of gas source rocks in the Sanlutian mine of the Muli mining area, Qinghai[J]. Geoscience, 2015, (5): 1214- 1222.
27	卢振权, 唐世琪, 王伟超, 等. 青海木里三露天冻土天然气水合物气源性质研究[J]. 现代地质, 2015, (5): 000995- 1001.
	Lu Zhenquan , Tang Shiqi , Wang Weichao , et al. Study on the nature of gas source for permafrost-associated gas hydrate in Sanlutian of Muli, Qinghai[J]. Geoscience, 2015, (5): 000995- 1001.
28	卢振权, 祝有海, 张永勤, 等. 青海祁连山冻土区天然气水合物的气体成因研究[J]. 现代地质, 2010, 24 (3): 581- 588.
	Lu Zhenquan , Zhu Youhai , Zhang Yongqin , et al. Study on genesis of gases from gas hydrate in the Qilian mountain permafrost, Qinghai[J]. Geoscience, 2010, 24 (3): 581- 588.
29	黄霞, 祝有海, 王平康, 等. 祁连山冻土区天然气水合物烃类气体组分的特征和成因[J]. 地质通报, 2011, 30 (12): 1851- 1856.
	Huang Xia , Zhu Youhai , Wang Pingkang , et al. Hydrocarbon gas composition and origin of core gas from the gas hydrate reservoir in Qilian Mountain permafrost[J]. Geological Bulletin of China, 2011, 30 (12): 1851- 1856.
30	翟刚毅, 卢振权, 卢海龙, 等. 祁连山冻土区天然气水合物成矿系统[J]. 矿物岩石, 2014, 34 (4): 79- 92.
	Zhai Gangyi , Lu Zhenquan , Lu Hailong , et al. Gas hydrate geological system in the Qilian mountain permafrost[J]. Mineral Petrol, 2014, 34 (4): 79- 92.
31	曹代勇, 王丹, 李靖, 等. 青海祁连山冻土区木里煤田天然气水合物气源分析[J]. 煤炭学报, 2012, 37 (8): 1364- 1368.
	Cao Daiyong , Wang Dan , Li Jing , et al. Gas source analysis of natural gas hydrate of Muli coalfield in Qilian mountain permafrost, Qinghai Province, China[J]. Journal of China Coal Society, 2012, 37 (8): 1364- 1368.
32	王佟, 刘天绩, 邵龙义, 等. 青海木里煤田天然气水合物特征与成因[J]. 煤田地质与勘探, 2009, 37 (6): 26- 30.
	Wang Dong , Liu Tianji , Shao Longyi , et al. Characteristics and origins of the gas hydrates in the Muli coalfield of Qinghai[J]. Coal Geology & Exploration, 2009, 37 (6): 26- 30.
33	白生海. 青海省侏罗纪含煤盆地及含煤地层[J]. 中国煤炭地质, 1993, (3): 20- 23.
	Bai Shenhai . Jurassic Coal-bearing basins and coal-bearing strata in Qinghai province[J]. Coal Geology of China, 1993, (3): 20- 23.
34	符俊辉, 周立发. 南祁连盆地三叠纪地层及石油地质特征[J]. 西北地质科学, 2000, 21 (2): 64- 72.
	Fu Junhui , Zhou Lifa . Triassic stratigraphic provinces of the southern Qilian basin and their petro-geological features[J]. Northwest Geoscience, 2000, 21 (2): 64- 72.
35	邵龙义, 杨致宇, 李永红, 等. 青海木里聚乎更天然气水合物潜在区中侏罗世岩相古地理特征[J]. 现代地质, 2015, (5): 1061- 1072.
	Shao Longyi , Yang Zhiyu , Li Yonghong , et al. Lithofacies palaeogeography of the Middle Jurassic in the Juhugeng gas hydrate potential area in Muli, Qinghai province[J]. Geoscience, 2015, (5): 1061- 1072.
36	冯益民. 祁连造山带研究概况-历史、现状及展望[J]. 地球科学进展, 1997, 12 (4): 307- 314.
	Feng Yimin . Investigatory summary of the Qilian orogenic belt, China history, presence and prospect[J]. Advance in Earth Science, 1997, 12 (4): 307- 314.
37	胡见义. 中国陆相石油地质理论基础[M]. 北京: 石油工业出版社, 1991.
	Hu Jianyi . Theoretical basis of continental petroleum geology in China[M]. Beijing: Petroleum Industry Press, 1991.
38	陈荣书. 石油及天然气地质学[M]. 武汉: 中国地质大学出版社, 1994: 1- 262.
	Chen Rongshu . Petroleum & natural gas geology[M]. Wuhan: China University of Geosciences Press, 1994: 1- 262.
39	魏建设, 卢进才, 魏仙样, 等. 强烈风化作用对烃源岩评价指标的影响——以额济纳旗及邻区石炭系-二叠系为例[J]. 地质通报, 2012, 31 (10): 1715- 1723.
	Wei Jianshe , Lu Jincai , Wei Xianxiang , et al. The influence of intense weathering on the evaluation indexes of hydrocarbon source rocks:A case study of Carboniferous-Permian Strata of Ejin Banner and its neighboring areas[J]. Geological Bulletin of China, 2012, 31 (10): 1715- 1723.
40	黄第藩, 李晋超, 张大江. 干酪根的类型及其分类参数的有效性、局限性和相关性[J]. 沉积学报, 1984, (3): 21- 36.
	Huang Difan , Li Jinchao , Zhang Dajiang . The type of kerogen and the validity, limitation and correlation of its classification parameters[J]. Acta Sedimentologica Sinica, 1984, (3): 21- 36.
41	卢振权, 祝有海, 张永勤, 等. 青海省祁连山冻土区天然气水合物基本地质特征[J]. 矿床地质, 2010, 29 (1): 182- 191.
	Lu Zhenquan , Zhu Youhai , Zhang Yongqin , et al. Basic geological characteristics of gas hydrates in Qilian mountain permafrost area[J]. Qinghai Province.Mineral Deposits, 2010, 29 (1): 182- 191.
42	卢振权, 祝有海, 刘晖, 等. 祁连山冻土区含天然气水合物层段的油气显示现象[J]. 现代地质, 2013, 27 (1): 231- 238.
	Lu Zhenquan , Zhu Youhai , Liu Hui , et al. Oil and gas indications at gas hydrate-bearing intervals in the Qilian mountain permafrost[J]. Geoscience, 2013, 27 (1): 231- 238.
43	范东稳, 卢振权, 肖睿, 等. 南祁连盆地木里坳陷石炭系-侏罗系天然气水合物潜在气源岩地质特征[J]. 现代地质, 2018, 32 (5): 985- 994.
	Fan Dongwen , Lu Zhenquan , Xiao Rui , et al. Geological characteristics of Carboniferous-Jurassic potential source rocks for natural gas hydrates in Muli depression, south Qilian basin[J]. Geoscience, 2018, 32 (5): 985- 994.
44	任拥军, 纪友亮, 李瑞雪. 南祁连盆地热水-默勒地区上三叠统可能烃源岩地球化学特征[J]. 西北地质, 2001, 34 (2): 75- 81.
	Reng Yongjun , Ji Youliang , Li Ruixue . The geochemical characters of the Upper Triassic potential hydrocarbon source rock in Reshui-Muole area of South Qilian basin[J]. Northwestern Geology, 2001, 34 (2): 75- 81.
45	谢其锋, 周立发, 马国福, 等. 南祁连盆地三叠系烃源岩有机地球化学特征[J]. 北京大学学报(自然科学版), 2011, 47 (6): 1034- 1040.
	Xie Qifeng , Zhou Lifa , Ma Guofu , et al. Organic geochemistry of Tria-ssic source rocks in the southern Qilian Basin[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2011, 47 (6): 1034- 1040.
46	任冠龙, 孟文波, 张崇, 等. 深水气井测试中天然气水合物的抑制和调控方法[J]. 断块油气田, 2018, 25 (1): 107- 110.
	Ren Guanlong , Meng Wenbo , Zhang Chong , et al. Hydrate inhibition and control method for deep water gas well testing[J]. Fault-Block Oil and Gas Field, 2018, 25 (1): 107- 110.
47	程青松, 龚建明, 张敏, 等. 祁连山冻土区木里三叠系烃源岩地球化学特征[J]. 河北工程大学学报(自然科学版), 2015, 32 (4): 84- 89.
	Cheng Qingsong , Gong Jianming , Zhang Min , et al. Geochemical chara-cteristics of Triassic source rocks from the Muli Qilian Mountain permafrost[J]. Journal of Hebei University of Engineering (Natural Science Edition), 2015, 32 (4): 84- 89.
48	邵龙义, 吕景高, 张文龙, 等. 青海哆嗦公马矿区中侏罗统沉积环境及聚煤规律[J]. 煤炭科学技术, 2017, 45 (1): 180- 188.
	Shao Longyi , Lv Jinggao , Zhang Wenlong , et al. Sedimentary environments and coal accumulation law of middle Jurassic in Duosuogongma mining area of Qinghai[J]. Coal Science and Technology, 2017, 45 (1): 180- 188.
49	邵龙义, 文怀军, 李永红, 等. 青海省天峻县木里煤田煤层气有利区块的多层次模糊数学评判[J]. 地质通报, 2011, 30 (12): 1896- 1903.
	Shao Longyi , Wen Huaijun , Li Yonghong , et al. Assessment of favorable areas for coalbed methane resources exploration in the Muli coalfield of Qinghai province based on multi-layered fuzzy mathematics[J]. Geological Bulletin of China, 2011, 30 (12): 1896- 1903.
50	龚文强, 张永生, 宋天锐, 等. 南祁连盆地木里坳陷侏罗系烃源岩生烃潜力评价[J]. 石油天然气学报, 2013, (3X): 177- 179.
	Gong Wenqiang , Zhang Yongsheng , Song Tianrui , et al. Evaluation of hydrocarbon generation potential of Jurassic source rocks in Muli Depression, South Qilian Basin[J]. Journal of Petroleum and Natural gas, 2013, (3X): 177- 179.

采样层系	岩性	采样剖面号
采样层系	岩性	DL1	DL2	JC1	ML1	RS1
石炭系	泥岩	7	0	0	0	0
二叠系	泥岩	5	5	0	0	0
	泥灰岩	3	2	0	0	0
	炭质泥岩	0	2	0	0	0
	灰岩	0	1	0	0	0
三叠系	泥岩	0	0	33	0	0
	煤	0	0	1	0	0
	炭质泥岩	0	0	3	0	0
侏罗系	泥岩	0	0	0	9	31
	煤	0	0	0	8	5
	炭质泥岩	0	0	0	6	3

剖面号	层系	TOC含量
剖面号	层系	＜0.4%	0.4%~0.6%	0.6%~1.0%	1.0%~2.0%	＞2.0%
DL1	石炭系	85.71	14.29	0	0	0
DL1	二叠系	100.00	0	0	0	0
DL2	二叠系	40.00	0	30.00	10.00	20.00
JC1	三叠系	2.63	5.26	7.89	10.53	73.69
ML1	侏罗系	0	0	8.70	8.69	82.61
RS1	侏罗系	17.95	5.13	30.77	5.13	41.02

剖面号	层位	S₁+S₂
剖面号	层位	＜2mg/g	2~6mg/g	6~20mg/g	＞20mg/g
DL1	石炭系	100.00	0	0	0
DL1	二叠系	100.00	0	0	0
DL2	二叠系	100.00	0	0	0
JC1	三叠系	57.89	34.21	2.63	5.27
ML1	侏罗系	21.74	13.04	17.39	47.83
RS1	侏罗系	66.67	10.26	10.25	12.82

三类四分		S₁+S₂分布占比/%	I_H分布占比/%	D/%
Ⅰ型(腐泥型)		＞20mg/g	＞700mg/g	＞70mg/g
DL1	石炭系	0	0	0
DL1	二叠系	0	0	0
DL2	二叠系	0	0	0
JC1	三叠系	5.27	0	0
ML1	侏罗系	47.83	4.35	0
RS1	侏罗系	12.82	0	0
Ⅱ₁型(腐殖腐泥型)		6~20	350~700	30~70
DL1	石炭系	0	0	0
DL1	二叠系	0	0	25.00
DL2	二叠系	0	0	0
JC1	三叠系	2.63	0	2.63
ML1	侏罗系	17.39	17.39	21.74
RS1	侏罗系	10.25	0	0
Ⅱ₂型(腐泥腐殖型)		2~6	150~350	10~30
DL1	石炭系	0	0	42.86
DL1	二叠系	0	0	12.50
DL2	二叠系	0	0	10.00
JC1	三叠系	34.21	2.63	5.26
ML1	侏罗系	13.04	47.83	52.17
RS1	侏罗系	10.26	12.82	25.64
Ⅲ型(腐殖型)		＜2	＜150	＜10
DL1	石炭系	100.00	100.00	57.14
DL1	二叠系	100.00	100.00	62.50
DL2	二叠系	100.00	100.00	90.00
JC1	三叠系	57.89	97.37	92.11
ML1	侏罗系	21.74	30.43	26.09
RS1	侏罗系	66.67	87.18	74.36

样品编号	显微组分	化学元素			族组分	干酪根类型
样品编号	TI指数	H/C	O/C	δ¹³C/‰	饱/芳	干酪根类型
JC1-M-3	-71.50	0.70	0.13	-25.5	0.61	Ⅲ
JC1-M-15	16.50	0.72	0.12	-25.5	1.05	Ⅲ
JC1-M-30	-69.17	0.80	0.23	-25.1	0.56	Ⅲ
JC1-M-7	4.25	0.71	0.13	-26.0	1.44	Ⅱ₂
ML1-CM-04	-94.33	0.73	0.17	-23.5	0.75	Ⅲ
ML1-M1-06	67.78	0.93	0.18	-26.1	2.41	Ⅱ₂
ML1-煤-05	-76.17	0.74	0.13	-23.1	0.97	Ⅲ
RS1-CM-03	7.17	0.59	0.04	-23.2	0.13	Ⅲ
RS1-M-05	3.00	0.68	0.06	-23.4	0.45	Ⅲ
RS1-M-12	15.17	0.69	0.08	-22.3	0.21	Ⅲ
RS1-M-15	0.58	0.55	0.04	-23.1	0.20	Ⅲ
RS1-M-18	5.42	0.56	0.04	-22.2	0.19	Ⅲ

Organic geochemical characteristics of the Carboniferous-Jurassic potential source rocks for natural gas hydrates in the Muli Depression, Southern Qilian Basin

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