地球物理方法在青藏高原水合物勘探中的应用
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摘要
随着社会的发展传统能源日趋紧张,天然气水和物的出现引起了世界的广泛关注,是未来有可能取代传统能源的新型清洁能源。在对羌塘盆地开展的针对陆域冻土区天然气水合物调查的音频大地电磁资料处理解释,并在处理解释的基础上结合研究区地质及二维反射地震地球物理资料进行综合研究分析。获得了研究区有关天然气水合物的地球物理异常和烃类异常。通过综合分析音频大地电磁资料和地震剖面图,得到了研究区的电性和断裂结构,为青藏高原冻土区天然气水合物探测提供了科学依据,证实了地球物理探测对天然气水合物探测的可靠性和适用性。
with the development of society, the shortage of traditional energy is becoming more and more prominent. The emergence of natural gas hydrate has attracted worldwide attention. It is a new clean energy that may replace traditional energy in the future. In Qiangtang basin, the audio magnetotelluric data processing and interpretation for the investigation of natural gas hydrate in the permafrost region of the land area were carried out. Based on the interpretation and processing, combined with the geological and two-dimensional seismic reflection and geophysical data in the study area, comprehensive research and analysis were analyzed. The geophysical and hydrocarbon anomalies related to gas hydrates in the study area were obtained. Through the comprehensive analysis of the audio magnetotelluric data and seismic profiles, electrical and fault structure in the study area were obtained, which could provide a scientific basis for the natural gas hydrate exploration in permafrost region of Qinghai Tibet Plateau detection, and could confirm the reliability of the geophysical exploration in natural gas hydrate exploration.
with the development of society, the shortage of traditional energy is becoming more and more prominent. The emergence of natural gas hydrate has attracted worldwide attention. It is a new clean energy that may replace traditional energy in the future. In Qiangtang basin, the audio magnetotelluric data processing and interpretation for the investigation of natural gas hydrate in the permafrost region of the land area were carried out. Based on the interpretation and processing, combined with the geological and two-dimensional seismic reflection and geophysical data in the study area, comprehensive research and analysis were analyzed. The geophysical and hydrocarbon anomalies related to gas hydrates in the study area were obtained. Through the comprehensive analysis of the audio magnetotelluric data and seismic profiles, electrical and fault structure in the study area were obtained, which could provide a scientific basis for the natural gas hydrate exploration in permafrost region of Qinghai Tibet Plateau detection, and could confirm the reliability of the geophysical exploration in natural gas hydrate exploration.
引文
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[2]Sloan E D.Clathrate Hydrate of Natural Gases(Second edit)[M].New York:Marcel Dekker Inc.,1998.
[3]Collett T S.Permafrost-associated gas hydrate[C]//Max M D.Natural gas hydrate in oceanic and permafrost environments.The Netherlands,Kluwer Academic Publishers,2000:43-60.
[4]Kvenvolden K A,Lorenson T D.The global occurrence of natural gas hydrate[J].American Geophysical Union,2001,124:3-18.
[5]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):1761-1770.
[6]Dallimore S R,Collett T S.Summary and implication of the Mallik 2002 gas hydrate production research well program[C]//Dallimore S R,Collett T S.Scientific Results from the Mallik 2002 Gas Hydrate Production Research Well Program,Mackenzie Delta,Northwest Territories,Canada.Geological Survey of Canada,2005,585:1-36.
[7]Makogon Y F,Holditch S A,Makogon T Y.Natural gas-hydrates-Apotential energy source for the 21st Century[J].Journal of Petroleum Science and Engineering,2007,56:14-31.
[8]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.
[9]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.
[10]任纪舜,王作勋.新一代中国大地构造图[J].地质通报,1997(3):225-230.
[11]任纪舜,肖黎薇.1:25万地质填图进一步揭开了青藏高原大地构造的神秘面纱[J].地质通报,2004,23(1):1-11.
[12]吴功建,高锐,余钦范,等.青藏高原“亚东-格尔木地学断面”综合地球物理调查与研究[J].地球物理学报,1991,34(5):552-562.
[13]李廷栋,李光岑,肖序常,等.论青藏高原地壳演化和隆升机理[C].中国科学院地球物理研究所论文摘要集.1989.
[14]潘裕生.青藏高原第五缝合带的发现与论证[J].地球物理学报,1994,37(2):184-192.