Discovery of bitumen display in Nima Basin of Tibet and analysis of oil source.

Xu Bo; Yi Haisheng; Wu Xinhe

2021 Vol. 40, No. 9

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Xu Bo, Yi Haisheng, Wu Xinhe. Discovery of bitumen display in Nima Basin of Tibet and analysis of oil source.[J]. Geological Bulletin of China, 2021, 40(9): 1476-1483.

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Xu Bo, Yi Haisheng, Wu Xinhe. Discovery of bitumen display in Nima Basin of Tibet and analysis of oil source.[J]. Geological Bulletin of China, 2021, 40(9): 1476-1483.

Discovery of bitumen display in Nima Basin of Tibet and analysis of oil source.

1.
Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, Sichuan, China
2.
Oil and Gas Survey Center, China Geological Survey, Beijing 100083, China

More Information

Corresponding author: Yi Haisheng, yhs@cdut.edu.cn

Received Date: 21 December 2019

Revised Date: 14 April 2020

Publish Date: 15 September 2021

Abstract

Abstract

An EW-trending oil and gas display belt with 80 km length was discovered in the Saibuya depression of eastern Nima Basin, which indicating satisfactory prospect of oil and gas.Analysis of saturated hydrocarbons by gas chromatography-mass spectrometry was carried out to determine the geochemical characteristics and specific sources of the bitumen.The results show that the bitumen is in the mature stage and has not suffered significant biodegradation.It is characterized by high carbon number alkanes(> nC₂₅), lower Σ(≤nC₂₁)/Σ(≥nC₂₂)and (nC₂₁+nC₂₂)/(nC₂₈+nC₂₉), with obvious advantage of hopane ααα-20RC₂₉, which reveal the superior input of organic materials with terrigenous higher plants.The analysis of bituminous samples and comparison with the dark rock biomarkers of the Niubao Formation outcropped in Kangale show that they have a good genetic relationship, which confirms that the Nima Basin is a self-generating and self-storing continental petroliferous basin.
- Nima Basin /
- bitumen /
- biomarkers /
- oil-source correlation

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References

[1]	Jacob H. Disperse solid bitumens as an indicator for migration and maturity in prospecting for oil and gas[J]. Erdol and Kohle-Erdgas, 1985, 38: 364-366. Google Scholar
[2]	雷清亮, 付孝悦. 伦坡拉第三纪陆相盆地油气地质特征分析[J]. 地球科学——中国地质大学学报, 1996, (2): 168-173. Google Scholar
[3]	李英烈, 伍新和, 汪锐, 等. 西藏伦坡拉盆地旺2井钻获油气发现[J]. 中国地质, 2019, 46(3): 662-663. Google Scholar
[4]	潘磊, 王均杰, 李旭文, 等. 西藏伦坡拉盆地中央凹陷带走滑断层特征及其对油气成藏的影响[J]. 沉积与特提斯地质, 2019, 30(2): 27-34. doi: 10.3969/j.issn.1009-3850.2019.02.003 CrossRef Google Scholar
[5]	汪锐, 伍新和, 夏响华, 等. 应用盆地模拟技术评价西藏伦坡拉盆地油气资源潜力[J]. 地质力学学报, 2020, 26(1): 88-99. Google Scholar
[6]	蒋忠惕, 张家强, 王德杰. 西藏尼玛地区油气显示的发现及其意义[J]. 地质通报, 2006, 25(Z2): 185-189. Google Scholar
[7]	秦臻, 杨志军, 唐力, 等. 西藏冈底斯带查隆花岗岩地球化学特征、锆石U-Pb年龄及其成矿意义[J]. 地质通报, 2019, 38(2/3): 231-241. Google Scholar
[8]	卢占武, 张雪梅, 李文辉, 等. 拉萨地体南部多金属矿集区构造样式——来自深地震反射剖面的证据[J]. 地质通报, 2019, 38(10): 1595-1602. Google Scholar
[9]	薛万文, 田永革, 韩晓龙, 等. 西藏班公湖-怒江成矿带西段钠木钦金多金属矿地质特征及成因[J]. 地质与资源, 2019, (3): 266-271. doi: 10.3969/j.issn.1671-1947.2019.03.008 CrossRef Google Scholar
[10]	李泽瑜, 刘函, 段瑶瑶, 等. 西藏昂仁县扯假错渐新统日贡拉组地层沉积相及沉积演化特征[J]. 沉积与特提斯地质, 2019, 39(1): 34-43. Google Scholar
[11]	刘海永, 曾庆高, 王雨, 等. 西藏拉果错蛇绿混杂岩岩石学, 锆石U-Pb年龄及地球化学特征[J]. 地质通报, 2020, 39(2/3): 164-176. Google Scholar
[12]	孙涛, 王成善, 李亚林, 等. 西藏中部尼玛盆地页岩气地质特征及资源潜力[J]. 中国矿业, 2013, 22(1): 72-75. doi: 10.3969/j.issn.1004-4051.2013.01.019 CrossRef Google Scholar
[13]	马孝达. 西藏中部若干地层问题讨论[J]. 地质通报, 2003, 22(9): 695-698. doi: 10.3969/j.issn.1671-2552.2003.09.011 CrossRef Google Scholar
[14]	西藏自治区地质矿产局. 西藏自治区区域地质志[M]. 北京: 地质出版社, 1993. Google Scholar
[15]	唐华, 徐琳, 罗绍强, 等. 西藏尼木地区双壳类化石的发现及其对相关地层的厘定[J]. 中国地质, 2020, 47(3): 879-880. Google Scholar
[16]	王波明, 周家声, 闻涛, 等. 西藏尼玛盆地陆相地层归属及其油气意义[J]. 天然气技术, 2009, (4): 26-29, 83. Google Scholar
[17]	Kapp P, Decelles P G, Gehrels G E, et al. Geological records of the Lhasa-Qiangtang and Indo-Asian collisions in the Nima area of central Tibet[J]. Geological Society of America Bulletin, 2007, 119(7/8): 917-933. Google Scholar
[18]	李英烈, 伍新和, 汪锐. 西藏尼玛盆地发现多种化石: 地层划分新证据[J]. 中国地质, 2018, 45(6): 230-231. Google Scholar
[19]	赵政章, 李永铁, 叶和飞, 等. 青藏高原羌塘盆地石油地质[M]. 北京: 科学出版社, 2001. Google Scholar
[20]	Ficken K J, Li B, Swain D L, et al. An nalkane proxy for the sedimentary input of submerged/floating freshwater aquatic macrophytes[J]. Org. Geochem., 2000, 31(7/8): 745-749. Google Scholar
[21]	Huang W Y, Meinschein W G. Sterols as ecological indicators[J]. Geochimica Et Cosmochimica Acta, 1979, 43(5): 739-745. doi: 10.1016/0016-7037(79)90257-6 CrossRef Google Scholar
[22]	徐志星, 刘洋, 张武, 等. 西湖凹陷平湖斜坡带原油地球化学特征及油源探讨[J]. 中国石油大学胜利学院学报, 2019, (2): 10-15. doi: 10.3969/j.issn.1673-5935.2019.02.003 CrossRef Google Scholar
[23]	苗建宇, 周立发, 张宏福, 等. 新疆北部中二叠统烃源岩地球化学特征与沉积环境[J]. 地质学报, 2004, 78(4): 534-541. doi: 10.3321/j.issn:0001-5717.2004.04.013 CrossRef Google Scholar
[24]	Hao F, Zhou X, Zhu Y, et al. Mechanisms of petroleum accumulation in the Bozhong sub-basin, Bohai Bay Basin, China. Part 1: Origin and occurrence of crude oils[J]. Marine and Petroleum Geology, 2009, 26(8): 1528-1542. Google Scholar
[25]	田德瑞, 吴奎, 张如才, 等. 渤海湾盆地辽西凸起北段锦州20油田原油地球化学特征及油源对比[J]. 石油实验地质, 2018, 40(3): 112-119. Google Scholar
[26]	董君妍, 陈世加, 邹贤利, 等. 鄂尔多斯盆地吴起—高桥地区延长组重排类藿烷分布特征及成因探讨[J]. 石油实验地质, 2017, 39(6): 834-841. Google Scholar
[27]	Peters K E, Walters C C, Moldowan J M. The biomarker guide volume Ⅰ: Biomakers and isotopes in the encironment and human history[M]. University of Cambridge, 2005: 1-471. Google Scholar
[28]	傅家谟, 盛国英, 许家有, 等. 应用生物标志化合物参数判识古沉积环境[J]. 地球化学, 1991, (1): 3-14. Google Scholar
[29]	Damste J S S, Kenig F, Koopmans M P. Evidence for gammacerane as an indicator of water column stratification[J]. Geochimica Et Cosmochimica Acta, 1995, 59(9): 1895-1900. doi: 10.1016/0016-7037(95)00073-9 CrossRef Google Scholar
[30]	杜佰伟, 谢尚克, 董宇, 等. 伦坡拉盆地渐新统丁青湖组油页岩特征及其地质意义[J]. 吉林大学学报(地球科学版), 2016, (3): 671-680. Google Scholar
[31]	季长军. 南羌塘坳陷油藏带生物标志化合物特征及油源对比研究[D]. 成都理工大学博士学位论文, 2015. Google Scholar
[32]	李鑫. 西藏尼玛盆地上白垩统竟柱山组沉积相分析及烃源岩评价[D]. 成都理工大学硕士学位论文, 2018. Google Scholar
①	伊海生等.尼玛盆地南部坳陷沉积构造调查.成都理工大学2016. Google Scholar