Geochemical exploration of natural gas hydrate in mud volcano area of the Qiangtang Basin
YANG Zhi-Bin1, ZHOU Ya-Long1, SUN Zhong-Jun1, ZHANG Fu-Gui1, ZHANG Shun-Yao1, LI Guang-Zhi2
1. Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China; 2. Hefei Geochemical Exploration Institute, Research Institute of Exploration and Development, Sinopec, Hefei 230022, China
Abstract：Mud volcano is one of the signs of gas hydrate, and it is the main evidence for the existence of natural gas hydrate. The permafrost area in Qiangtang basin has developed a lot of mud volcanoes, the geochemical exploration of mud volcanoes shows that acidolysis hydrocarbon and fluorescence spectra, carbonate, altered carbonate and trace elements geochemical indices are abnormal in mud volcanoes, and methane carbon isotope and three-dimensional fluorescence analytical results show that hydrocarbon geochemical anomalies of crude oil are genetically related to associated gas and condensate oil formation, and that the peripheral area of mud volcano exhibits hydrocarbon enrichment, formed by the leakage of oil and gas reservoir. The results obtained by the authors are of important significance for gas hydrate exploration breakthrough in Qiangtang basin.
杨志斌, 周亚龙, 孙忠军, 张富贵, 张舜尧, 李广之. 羌塘盆地泥火山发育区天然气水合物地球化学勘查[J]. 物探与化探, 2017, 41(3): 452-458.
YANG Zhi-Bin, ZHOU Ya-Long, SUN Zhong-Jun, ZHANG Fu-Gui, ZHANG Shun-Yao, LI Guang-Zhi. Geochemical exploration of natural gas hydrate in mud volcano area of the Qiangtang Basin. Geophysical and Geochemical Exploration, 2017, 41(3): 452-458.
[1] Milkov A V. Worldwide distribution of submarine mud volcanoes and associated gas hydrates[J]. Marine Geology,2000,167(12): 29-42. [2] Judd A, Hovland M. Seabed Fluid Flow: The impact on geology, biology and the marine environment[M].Cambridge: Cambridge University,2007. [3] 何家雄,祝有海,翁荣南,等.南海北部边缘盆地泥底辟及泥火山特征及其与油气运聚关系[J].地球科学:中国地质大学学报,2010,35(1):75-86. [4] 沙志彬,张光学,梁金强,等.泥火山——天然气水合物存在的活证据[J].南海地质研究,2005(1):48-56. [5] Dimitrov L. Mud volcanoes-the most important pathway for degassing deeply buried sediments[J]. Earth-Science Reviews,2002,59(1):49-76. [6] Dimitrov L.Mud volcanoes: A significant source of atmospheric Methane[J]. Geo Marine Letters,2003,23(3/4):155-161. [7] Kopf A J. Significance of mud volcanism. Reviews of Geophysics, 2002, 40(2):2.1-2.52. [8] Milkov A V. Global distribution of mud volcanoes and their significance in petroleum exploration as a source of methane in the atmosphere and hydrosphere and as a geohazard[C]//Mud Volcanoes, Geodynamics and Seismicity,2005,51: 29-34. [9] Chiu J K, Tseng W H, Liu C S. Distribution of gassy sediments and mud volcanoes offshore southwestern Taiwan[J]. Terrestrial Atmospheric and Oceanic Sciences, 2006,17(4):703-722. [10] 刘伯然,宋海斌,关永贤,等.南海东北部陆坡冷泉系统的浅地层剖面特征与分析[J].地球物理学报,2015,58(1):247-256. [11] 陈江欣,关永贤,宋海斌,等.麻坑、泥火山在南海北部与西部陆缘的分布特征和地质意义[J].地球物理学报,2015,58(3):919-938. [12] Konyukhov A I,Ivanov M K, Kul��nitsky L M. On mud volcanoes and gas hydrates in deep water regions of the Black Sea[M]. Russian: Litol.Polezn.Iskop,1990,3:12-23. [13] Bil K J. Economic perspective of methane from hydrate[G]//Max MD. Natural gas hydrate in oceanic and permafrost environments. Dordrecht: Kluwer Academic Publisher, 2000:349-360. [14] 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[J].Journal of Geochemical Exploration,2014,139:160-169. [15] 卢振权,吴必豪,饶竹,等.青藏铁路沿线多年冻土区天然气水合物的地质、地球化学异常[J].地质通报,2007,26(8):1029-1040. [16] 杨志斌,孙忠军.天然气水合物地球化学勘查方法[J].物探与化探,2011,35(3):285-289. [17] 孙忠军,杨志斌,卢振权,等.青海木里三露天天然气水合物矿藏土壤微量元素地球化学特征[J].现代地质,2015,29(5):1164-1172. [18] 谢超明,李才,李林庆,等.藏北羌塘中部首次发现泥火山[J].地质通报, 2009,28(9):1319-1324. [19] 羌塘盆地戈木错地区泥火山群沉积及浅表地球化学特征[J].沉积与特提斯地质,2015,35(1):50-56. [20] 解超明,李才,吴彦旺,等.青藏高原羌塘中部泥火山喷发物中沥青脉饱和烃气相色谱特征及其油气地质意义[J].地质通报,2012,31(6):977-978.
