Characterization and evaluation on the source rock of gas hydrate in Muli permafrost area, Nanqilian Basin

ZHANG Jiazheng; ZHU Youhai; HUANG Xia; WANG Mingjun; ZHAO Guangzhen; WANG Pingkang; ZHANG Shuai; PANG Shouji

2017 Vol. 36, No. 4

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ZHANG Jiazheng, ZHU Youhai, HUANG Xia, WANG Mingjun, ZHAO Guangzhen, WANG Pingkang, ZHANG Shuai, PANG Shouji. Characterization and evaluation on the source rock of gas hydrate in Muli permafrost area, Nanqilian Basin[J]. Geological Bulletin of China, 2017, 36(4): 634-643.

Citation:

ZHANG Jiazheng, ZHU Youhai, HUANG Xia, WANG Mingjun, ZHAO Guangzhen, WANG Pingkang, ZHANG Shuai, PANG Shouji. Characterization and evaluation on the source rock of gas hydrate in Muli permafrost area, Nanqilian Basin[J]. Geological Bulletin of China, 2017, 36(4): 634-643.

Characterization and evaluation on the source rock of gas hydrate in Muli permafrost area, Nanqilian Basin

1.
Oil and Gas Survey of China Geological Survey, Beijing 100029, China
2.
United Energy (Beijing) Co., Ltd., Beijing 100016, China

Received Date: 18 October 2016

Revised Date: 07 February 2017

Publish Date: 25 April 2017

Abstract

Abstract

China's first permafrost gas hydrate samples were collected by China Geological Survey in 2008 in Muli permafrost area, Nanqilian Basin. There exist different opinions concerning the genesis or origin of gases from gas hydrate. The organic geochemical indictors were systematically analyzed on the gas source rocks of the Middle Jurassic and the Upper Triassic from recently drilled 3 wells. The results show that the organic matter values are at high levels in source rocks of the Middle Jurassic strata (Jiangcang and Muli Formation) in the study area. 78.9% of TOC values are more than 1.0%, and 72.2% of chloroform bitumen 'A' are more than 0.1%. The main organic matter is of type Ⅱ₂ and Ⅱ₁. The vitrinite reflectances of most samples are between 0.7% to 1.2%. The average value of total hydrocarbon generation potential is 8.8mg/g rock in total 71 samples. So the organic matters in most samples are at mature levels, or at condensate levels, which are good and very good source rocks for the gases of gas hydrates. The organic matter values are also at high levels in source rocks of the Upper Triassic strata (Galedesi Formation). 76.9% of TOC values are more than 1.0%. The chloroform bitumen 'A' is less than 0.05%. The main organic matters are of type Ⅲ and Ⅱ₁. The vitrinite reflectances of most samples are between 1.1% and 1.77%. Hence the organic matters in most samples are at post mature levels, or at dry gas levels, but the average value of total hydrocarbon generation potential is only 0.35 mg/g rock in total 39 samples, suggesting poor source rocks or barren rocks for the gases of gas hydrates.
- gas hydrate /
- Middle Jurassic /
- Upper Triassic /
- source rock characteristics /
- Muli permafrost /
- Nanqilian Basin

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References

[1]	Kvenvolden K A. A review of the geochemistry of methane in natu-ral gas hydrate[J]. Organic Geochemistry, 1995, 23(11/12):997-1008. Google Scholar
[2]	史斗, 郑军卫.世界天然气水合物研究开发现状和前景[J].地球科学进展, 1999, 14(4):330-339. Google Scholar
[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. doi: 10.3321/j.issn:0001-5717.2009.11.018 CrossRef Google Scholar
[4]	张洪涛, 祝有海.中国冻土区天然气水合物调查研究[J].地质通报, 2011, 30(12):1809-1815. doi: 10.3969/j.issn.1671-2552.2011.12.001 CrossRef Google Scholar
[5]	Collett T S. Energy resource potential of natural gas hydrates[J]. AAPG Bulletin, 2002, 86(11):1971-1992. Google Scholar
[6]	Makogon Y F, Holditch S A, Makogon T Y. Natural gashydrates:A potential energy source for 21st Century[J]. Journal of Petroleum Science and Engineering, 2007, 56:14-31. doi: 10.1016/j.petrol.2005.10.009 CrossRef Google Scholar
[7]	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. Google Scholar
[8]	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, 2001, 21(11):794-798. Google Scholar
[9]	伊海生, 时志强, 刘文均.青藏高原多年冻土区天然气水合物形成潜力及远景[J].西藏地质, 2002, 14(1):45-52. Google Scholar
[10]	刘怀山, 韩晓丽.西藏羌塘盆地天然气水合物地球物理特征识别与预测[J].西北地质, 2004, 37(4):33-38. Google Scholar
[11]	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. Google Scholar
[12]	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. Google Scholar
[13]	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. Google Scholar
[14]	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. Google Scholar
[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. doi: 10.3969/j.issn.1671-2552.2011.12.002 CrossRef Google Scholar
[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. doi: 10.3969/j.issn.1671-2552.2011.12.016 CrossRef Google Scholar
[17]	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. Google Scholar
[18]	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. Google Scholar
[19]	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. Google Scholar
[20]	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. doi: 10.3969/j.issn.1671-2552.2011.12.006 CrossRef Google Scholar
[21]	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. Google Scholar
[22]	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, 29(5):995-1001. Google Scholar
[23]	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. Google Scholar
[24]	贺行良, 刘昌岭, 孟庆国, 等.青海聚乎更钻探区含水合物岩心气体组成及其指示意义[J].现代地质, 2015, 29(5):1194-1200. Google Scholar
[25]	谢其峰, 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. Google Scholar
[26]	潘语录, 田贵发, 栾安辉, 等.测井方法在青海木里煤田冻土研究中的应用[J].中国煤炭地质, 2008, 20(12):7-9. doi: 10.3969/j.issn.1674-1803.2008.12.003 CrossRef Google Scholar
[27]	文怀军, 鲁静, 尚潞君, 等.青海聚乎更矿区侏罗纪含煤岩系层序地层研究[J].中国煤田地质, 2006, 18(5):19-21. Google Scholar
[28]	青海省地质矿产局.青海省区域地质志[M].北京:地质出版社, 1991. Google Scholar
[29]	胡见义, 黄第藩, 徐树宝, 等.中国陆相石油地质理论基础[M].北京:石油工业出版社, 1991:1-322. Google Scholar
[30]	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. Google Scholar
[31]	黄第藩, 李晋超, 周翥虹, 等.陆相有机质演化和成烃机理[M].北京:石油工业出版社, 1984:1-196. Google Scholar
[32]	梁世友, 李凤丽, 付洁, 等.北黄海盆地中生界烃源岩评价[J].石油实验地质, 2009, 31(3):249-252. doi: 10.11781/sysydz200903249 CrossRef Google Scholar
[33]	龙华山, 王绪龙, 向才富, 等.准噶尔盆地南缘侏罗系烃源岩评价[J].现代地质, 2013, 27(5):1070-1080. Google Scholar
[34]	戴金星.戴金星天然气地质和地球化学论文集 (卷二)[M].北京:石油工业出版社, 2000. Google Scholar