中国陆域冻土区浅表烃类地球化学特征及其成因分析

doi:10.11720/wtyht.2022.1244

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Abstract

This study analyses the geochemical characteristics, genesis, and properties of hydrocarbon components using data of surface soil samples collected from the permafrost regions in the Qiangtang Basin, the Qilian Mountains, and the Mohe Basin. The results revealed that the hydrocarbon gases in the superficial soils in the permafrost regions mainly comprise methane, as well as a small amount of ethane, ethylene, propane, butane, and pentane. The hydrocarbon gases in the Qiangtang and Mohe basins are mainly of pyrolytic genesis and their types include soil-formed gas and the mixed gas of soil-formed gas and coalbed methane. In contrast, hydrocarbon gases in the superficial soil in the permafrost zone in the Qilian Mountains are of pyrolytic and biogenic genesis and their types include soil-formed gas, coalbed methane, and biogenetic gas. The study provides a basis for exploring oil and gas resources such as natural gas hydrates in the continental permafrost regions in China.

Key words： continental permafrost region geochemical characteristics natural gas hydrate acidolysis hydrocarbon headspace gas

Received: 30 April 2021 Published: 21 June 2022

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	Zhi-Bin YANG
	Ya-Long ZHOU
	Fu-Gui ZHANG
	Shun-Yao ZHANG
	Zhong-Jun SUN

Cite this article:

Zhi-Bin YANG,Ya-Long ZHOU,Fu-Gui ZHANG, et al. Geochemical characteristics and genesis of hydrocarbons in superficial soil in continental permafrost regions in China[J]. Geophysical and Geochemical Exploration, 2022, 46(3): 628-636.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2022.1244 OR https://www.wutanyuhuatan.com/EN/Y2022/V46/I3/628

Analysis quality statistics of sample

Statistics of various indexes of acidolytic hydrocarbon in the permafrost area

Statistics of various indexes of hydrocarbon gas detected with headspace gas technique in the permafrost area

Point diagram of C₁/C_2~5 and C₁/(C₂+C₃) from acidolysis soil in Muli area of the Qilian Mountain (a), Mohe Basin(b) and Qiangtang Basin(c)

Point diagram of C₁/C_2~5 and C₁/(C₂+C₃) from head-space gas soil in Muli area of the Qilian mountain(a), Mohe Basin(b) and Qiangtang Basin(c)

Point diagram of C₁/C_1~5 and C₁/C_2~5 from acidolysis soil in Muli area of the Qilian mountain(a), Mohe Basin(b) and Qiangtang Basin(c)

Point diagram of C₁/C_1~5 and C₁/C_2~5 from head-space gas soil in Muli area of the Qilian mountain(a), Mohe Basin(b) and Qiangtang Basin(c)

14])
Ⅰ¹—biogas;Ⅰ²—biogas and sub-biogas;Ⅰ³—sub-biogas;Ⅱ¹—oil-associated gas;Ⅱ²—oil cracking gas;Ⅲ¹—oil cracking gas and coal gas;Ⅲ²—condensate oil-associated gas and coal gas;Ⅳ—coal gas;Ⅴ¹—inorganic gas;Ⅴ²—inorganic gas and coal gas;

—detection point of Qiangtang Basin;

—detection point of Qilian mountain
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Relationships of C₁/(C₂+C₃) and δ¹³C₁ in acidolysis soil from Qiangtang Basin and Muli area (modified according to Dai J X^[14])
Ⅰ¹—biogas;Ⅰ²—biogas and sub-biogas;Ⅰ³—sub-biogas;Ⅱ¹—oil-associated gas;Ⅱ²—oil cracking gas;Ⅲ¹—oil cracking gas and coal gas;Ⅲ²—condensate oil-associated gas and coal gas;Ⅳ—coal gas;Ⅴ¹—inorganic gas;Ⅴ²—inorganic gas and coal gas;

—detection point of Qiangtang Basin;

—detection point of Qilian mountain

Quantitative indicators for evaluation of oil and gas properties of surface samples by 3D fluorescence technique

分区	样号	T₁	F₁	T₂	F₂	T₃	F₃	R	K
羌塘盆地	WG218	232/340	50.0	252/370	8.7	248/312	45.0	5.7	0.73
	WG324	232/340	108.0	252/370	38.8	248/312	53.7	2.8	0.63
	WG385	228/340	45.6	252/370	8.1	248/312	50.5	5.6	0.70
	XC048	228/340	33.5	252/370	5.8	248/312	45.3	5.8	0.81
	XC161	228/340	35.2	252/370	5.8	248/312	43.5	6.1	0.81
	XC198	232/340	43.6	252/370	4.9	248/312	45.3	8.9	0.75
	XC237	232/340	40.3	252/370	3.9	248/312	42.6	10.3	0.81
	XC255	228/340	27.6	252/370	3.8	248/312	41.2	7.3	0.83
	XC274	228/340	39.3	252/370	6.8	248/312	43.4	5.8	0.78
	XC308	232/340	38.7	252/370	4.9	248/312	41.6	7.9	0.76
	XY038	232/340	93.8	252/370	16.2	248/312	49.8	5.8	0.72
祁连山木里地区	QLH1810	232/344	551.0	252/375	144.0	288/344	128.0	3.8	0.73
	QLH1911	232/344	601.0	252/375	190.0	288/340	146.0	3.2	0.68
	QLH1912	232/344	47.4	252/375	8.7	288/340	8.2	5.5	0.72
	QLH1913	232/344	60.0	252/375	9.6	282/330	11.7	6.3	0.83
	QLH1915	232/344	110.0	252/375	23.4	282/330	21.0	4.7	0.75
	QLH1916	232/344	47.0	252/375	9.5	282/330	9.7	5.0	0.71
	QLH2010	232/344	676.0	252/375	267.0	288/340	203.0	2.5	0.72
	QLH2011	228/340	520.0	252/375	183.0	288/340	134.0	2.8	0.66
	QLH2012	228/340	386.0	252/375	68.0	288/340	83.7	5.7	0.79
	QLH2108	228/340	45.8	252/375	9.8	280/330	8.8	4.7	0.72
	QLH2109	228/340	90.5	252/375	13.3	280/330	17.1	6.8	0.83
	QLH2110	228/340	76.4	252/375	10.4	280/330	13.5	7.4	0.79
漠河地区	T236	228/340	158.0	248/375	14.0	264/320	25.6	11.3	0.80
	T237	228/340	415.0	248/375	14.7	264/320	50.7	28.2	0.89
	T238	228/340	339.0	248/375	21.0	264/320	74.0	16.1	0.83
	T242	228/340	266.0	248/375	21.0	264/320	49.0	12.7	0.82
	T243	228/340	198.0	248/375	16.0	264/320	37.0	12.4	0.80
	T244	228/340	242.0	248/375	22.0	264/320	44.0	11.0	0.80
	T245	228/340	311.0	248/375	40.0	264/320	54.0	7.8	0.78
	T185	228/340	87.0	248/375	6.4	264/320	19.0	13.6	0.87
	T191	228/340	118.0	248/375	6.8	264/320	18.4	17.4	0.83
	T193	228/340	70.0	248/375	7.0	264/320	13.5	10.0	0.82
	T194	228/340	75.6	248/375	6.8	264/320	15.6	11.1	0.85
	T198	228/340	102.0	248/375	8.6	264/320	23.0	11.9	0.84
	T199	228/340	153.0	248/375	13.4	264/320	39.0	11.4	0.84
	T200	228/340	172.0	248/375	20.0	264/320	50.8	8.6	0.82

Quantitative indicators of surface samples by 3D fluorescence technique

[1]	周幼吾, 郭东信, 邱国庆, 等. 中国冻土[M]. 北京: 科学出版社, 2000.
[1]	Zhou Y W, Guo D X, Qiu G Q, et al. Frozen ground of China[M]. Beijing: Science Press, 2000.
[2]	张洪涛, 张海启, 祝有海. 中国天然气水合物调查研究现状及其进展[J]. 中国地质, 2007, 34(6):953-961.
[2]	Zhang H T, Zhang H H, Zhu Y H. Gas hydrate investigation and research in China: Present status and progress[J]. Geology in China, 2007, 34(6):953-961.
[3]	祝有海, 张永勤, 文怀军, 等. 青海祁连山冻土区发现天然气水合物[J]. 地质学报, 2009, 83(11):1762-1771.
[3]	Zhu Y H, Zhang Y Q, Wen H J, et al. Gas hydrates in the Qilian Mountain permafrost, Qinghai, northwest China[J]. Acta Geologica Sinca, 2009, 83(11): 1762-1771.
[4]	Lu Z, Zhu Y, Zhang Y, et al. Gas hydrate occurrences in the Qilian Mountain permafrost, Qinghai Province,China[J]. Cold Regions Science and Technology, 2011, 66(2-3): 93-104.
[5]	孙春岩, 牛滨华, 王宏语, 等. 西沙海槽研究区天然气水合物地球化学勘探及成藏模式研究[J]. 地学前缘, 2005, 12(1):243-251.
[5]	Sun C Y, Niu B H, Wang H Y, et al. A study of gas hydrate geochemical exploration and deposit formation patterns in the Xisha ocean[J]. Earth Science Frontiers, 2005, 12(1):243-251.
[6]	金庆焕, 张光学, 杨木壮, 等. 天然气水合物资源概论[M]. 北京: 科学出版社, 2006.
[6]	Jin Q H, Zhang G X, Yang M Z, et al. Introduction to natural gas hydrate resources[M]. Beijing: Science Press, 2006.
[7]	卢振权, 吴必豪. 海底水合物地球化学探测方法的试验研究[J]. 现代地质, 2002, 16(3):299-304.
[7]	Lu Z Q, Wu B H. Experimental research on geochemical methods for prospecting gas hydrates in marine sediments[J]. Geoscience, 2002, 16(3):299-304.
[8]	梁世容, 寇新琴. 利用地球化学异常探测水合物[J]. 南海地质研究, 2004:115-121.
[8]	Liang S R, Kou X Q. Prospecting gas hydrates by geochemical anomaly methods[J]. Greseach of Eological South China Sea, 2004:115-121.
[9]	Sun Z J, Yang Z B, Mei H, et al. Geochemical characteristics of the shallow soil above the Muli gas hydrate reservoir in the permafrost region of the Qilian Mountains,China[J]. Journal of Geochemical Exploration, 2014, 139: 160-169.
[10]	Lu Z, Zhu Y, Liu H, et al. Gas source for gas hydrate and its significance in the Qilian Mountain permafrost, Qinghai[J]. Marine and Petroleum Geology, 2013, 43: 341-348.
[11]	邢学文, 刘松, 周红英, 等. 木里冻土带天然气水合物赋存区浅层土壤地球化学特征及指示意义[J]. 石油与天然气地质, 2014, 35(2):159-166.
[11]	Xing X W, Liu S, Zhou H Y, et al. Geochemical behaviors of shallow oil in Muli permafrost and their significance as gas hydrate indicators[J]. Oil and Gas Geology, 2014, 35(2):159-166.
[12]	漆富成, 秦明宽, 刘武生, 等. 鄂尔多斯盆地直罗组赋铀沉积相与油气蚀变带的时空配置[J]. 铀矿地质, 2007, 23(2):65-70.
[12]	Qi F C, Qin M K, Liu W S, et al. Time-space configuration of uranium mineralization,sedimentary facies and oil & gasinduced alteration zone in Zhiluo formation,Ordos basin[J]. Uranium Geology, 2007, 23(2):65-70.
[13]	戴金星, 倪云燕, 黄士鹏, 等. 中国天然气水合物气的成因类型[J]. 石油勘探与开发, 2017, 44(6):837-848.
[13]	Dai J X, Ni Y Y, Huang S P, et al. Genetic types of gas hydrates in China[J]. Petroleum Exploration and Development, 2017, 44(6):837-848.
[14]	戴金星. 天然气碳氢同位素特征和各类天然气鉴别[J]. 天然气地球科学, 1993, 4(2/3):1-40.
[14]	Dai J X. Natural gas hydrocarbon isotope characteristics and identification of various natural gas[J]. Natural Gas Earth Sciences, 1993, 4(2/3):1-40.
[15]	Liu S, Jiang Z, Liu H, et al. The natural-gas hydrate exploration prospects of the Nayixiong Formation in the Kaixinling-Wuli Permafrost, Qinghai-Tibet Plateau[J]. Marine and Petroleum Geology, 2016, 72: 179-192.
[16]	季长军, 尹海生, 夏国清, 等. 羌塘盆地隆鄂尼地区油苗芳烃分布特征及意义[J]. 沉积学报, 2014, 32(2):391-398.
[16]	Ji C J, Yin H S, Xia G Q, et al. Geochemical characteristics and significance of omatic hydrocarbon of Long'eni area crude oil in Qiangtang Basin[J]. Acta Sedimentologica Sinica, 2014, 32(2):391-398.
[17]	王成善, 尹海生, 刘池洋, 等. 西藏羌塘盆地古油藏发现及其意义[J]. 石油与天然气地质, 2004, 25(2):139-143.
[17]	Wang C S, Yin H S, Liu C Y, et al. Discovery of paleo-oil-reservoir in Qiangtang basin in Tibet and its geological significance[J]. Oil and Gas Geology, 2004, 25(2):139-143.
[18]	谭富荣, 刘世明, 崔伟雄, 等. 木里煤田聚乎更矿区天然气水合物气源探讨[J]. 地质学报, 2017, 91(5):1158-1167.
[18]	Tan F Y, Liu S M, Cui W X, et al. Origin of gas hydrate in the Juhugeng mining area of Muli coalfield[J]. Acta Geologica Sinica, 2017, 91(5):1158-1167.
[19]	Li B, Sun Y, Guo W, et al. The mechanism and verification analysis of permafrost-associated gas hydrate formation in the Qilian Mountain, Northwest China[J]. Marine and Petroleum Geology, 2017, 86: 787-797.
[20]	黄霞, 刘晖, 张家政, 等. 祁连山冻土区天然气水合物烃类气体成因及其意义[J]. 地质科学, 2016, 51(3):934-945.
[20]	Huang X, Liu H, Zhang J Z, et al. Gnetic-type and its significance of hydrocarbon gases from permafrost-associated gas hydrate in Qilian Mountain[J]. Chinese Journal of Geology, 2016, 51(3):934-945.
[21]	刘昌岭, 贺行良, 孟庆国, 等. 祁连山冻土区天然气水合物分解气碳氢同位素组成特征[J]. 岩矿测试, 2012, 31(3):489-494.
[21]	Liu C L, He X L, Meng Q G, et al. Carbon and hydrogen isotopic compositions characteristics of the released gas from natural gas hydrates in the Qilian Mountain Permafrost[J]. Rock and Mineral Analysis, 2012, 31(3):489-494.
[22]	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源条件及其指示意义[J]. 矿床地质, 2013, 32(5):1035-1044.
[22]	Lu Z Q, Zhu Y H, Zhang Y Q, et al. Gas source conditions for gas hydrate in Qilian Mountain permafrost of Qinghai and their implications[J]. Mineral Deposits, 2013, 32(5):1035-1044.
[23]	刘圣乾, 刘晖, 姜在兴, 等. 青海南部冻土区天然气水合物成藏控制因素[J]. 地学前缘, 2017, 11(6):242-253.
[23]	Liu S Q, Liu H, Jiang Z X, et al. Controlling factors of gas hydrate formation in southern Qinghai permafrost[J]. Earth Science Frontiers, 2017, 11(6):242-253.
[24]	庞守吉, 苏新, 何浩, 等. 祁连山冻土区天然气水合物地质控制因素分析[J]. 地学前缘, 2013, 20(1):223-239.
[24]	Pang S J, Su X, He H, et al. Geological controlling factors of gas hydrate occurrence in Qilian Mountain permafrost China[J]. Earth Science Frontiers, 2013, 20(1): 223-239.
[25]	宋继梅, 吴杰颖, 王凌峰. 荧光分析法在油气化探中的应用[J]. 物探与化探, 2002, 26(5):347-349.
[25]	Song J M, Wu J Y, Wang L F. The application of pluorescence spectral analytical method to oil and gas geochemical exploration[J]. Geophysical and Geochemical Exploration, 2002, 26(5): 347-349.
[26]	汤玉平, 丁湘玉, 吴向华, 等. 中国主要含油气盆地区域地球化学场参数特征及其成因研究[J]. 石油勘探与开发, 2001, 28(3):1-4.
[26]	Tang Y P, Ding X Y, Wu X H, et al. Features and genesis of regional geochemical fields of the main hydrocarbon-bearing basins in China[J]. Petroleum Exploration and Development, 2001, 28( 3):1-4.
[27]	Cheng B, Xu J, Lu Z, et al. Hydrocarbon source for oil and gas indication associated with gas hydrate and its significance in the Qilian Mountain permafrost, Qinghai, Northwest China[J]. Marine and Petroleum Geology, 2018, 89: 202-215.
[28]	Zhao X, Deng J, Li J, et al. Gas hydrate formation and its accumulation potential in Mohe permafrost, China[J]. Marine and Petroleum Geology, 2012, 35(1): 166-175.
[29]	赵省民, 邓坚, 饶竹, 等. 漠河盆地多年冻土带生物气的发现及对陆域天然气水合物勘查的重要意义[J]. 石油学报, 2015, 36(8):954-965.
[29]	Zhao X M, Deng J, Rao Z, et al. Occurrence of biogenic gas in the permafrost of Mohe Basin and its implication for gas hydrate exploration in continental permafrost,China[J]. Acta Petrolei Sinica, 2015, 36(8):954-965.
[30]	吴河勇, 辛仁臣, 杨建国. 漠河盆地中侏罗统沉积演化及含油气远景[J]. 石油实验地质, 2003, 25(2):116-121.
[30]	Wu H Y, Xin R C, Yang J G. The middle Jurassic sedimentary evolution and petroleum potential of the Mohe Basin[J]. Experimental Petroleum Geology, 2003, 25(2):116-121.