doi:

DOI: 10.3724/SP.J.1226.2013.00691

Sciences in Cold and Arid Regions 2013/5:6 PP.691-697

Spatial coupling relationships of gas hydrate formation in the Tibetan Plateau


Abstract:
At present, gas hydrates are known to occur in continental high latitude permafrost regions and deep sea sediments. Formiddle latitude permafrost regions of the Tibetan Plateau, further research is required to ascertain its potential developmentof gas hydrates. This paper reviewed pertinent literature on gas hydrates in the Tibetan Plateau. Both geological and ge-ographical data are synthesized to reveal the relationship between gas hydrate formation and petroleum geological evo-lution, Plateau uplift, formation of permafrost, and glacial processes. Previous studies indicate that numerous residualbasins in the Plateau have been formed by original sedimentary basins accompanied by rapid uplift of the Plateau. Ex-tensive marine Mesozoic hydrocarbon source rocks in these basins could provide rich sources of materials forming gashydrates in permafrost. Primary hydrocarbon-generating period in the Plateau is from late Jurassic to early Cretaceous,while secondary hydrocarbon generation, regionally or locally, occurs mainly in the Paleogene. Before rapid uplift of thePlateau, oil-gas reservoirs were continuously destroyed and assembled to form new reservoirs due to structural and thermaldynamics, forcing hydrocarbon migration. Since 3.4 Ma B.P., the Plateau has undergone strong uplift and extensive gla-ciation, periglacier processes prevailed, hydrocarbon gas again migrated, and free gas beneath ice sheets within sedi-mentary materials interacted with water, generating gas hydrates which were finally preserved under a cap formed byfrozen layers through rapid cooling in the Plateau. Taken as a whole, it can be safely concluded that there is great temporaland spatial coupling relationships between evolution of the Tibetan Plateau and generation of gas hydrates.

Key words:gas hydrates,petroleum geology,frozen earth and glacial,Plateau uplift,spatial coupling relationship,Tibetan Plateau

ReleaseDate:2015-04-17 09:59:09



Chen DF, Wang MC, Xia B, 2005. Formation condition and distribu-tion prediction of gas hydrate in Qinghai-Tibet Plateau permafrost.Geophys., 48(1): 165-172.

Chen KZ, Bowler JM, KeltsK, 1990. Palaeoclimatic evolution withinthe Qinghai-Xizang (Tibet) Plateau in the last 40,000 years. Qua-ternary Sciences, (1): 21-30.

Deng XF, Zhang WJ, 1992. Evolution of quaternary glaciers and envi-ronment on the eastern side of the Geladandong Peak. Journal ofGlaciology and Geocryology, 14(2): 153-160.

Duan ZM, Li Y, Li YL, 2005. Quaternary tills at the pass of theTanggula Mountains on the Qinghai-Tibet Plateau and their geo-logical-environmental significance. Geology in China, (1): 1-10.

Fu XY, 2005. Petroleum Geology of the Tibetan Plateau. PetroleumIndustry Press, Beijing, China, pp. 1-178. http://www.cngascn.com/up_files/news /84306500.pdf, China Natural Gas Chronicle.

Jiang GS, Wang D, Tang FL, 2002. Progress in Researches on Explo-ration and Exploitation for Natural Gas Hydrate. China Universityof Geosciences Press, Wuhan, China, pp. 1-195.

Jiao KQ, Shen YP, 2003. The quaternary glaciations and glacier prop-erties in the Tanggula Range. Journal of Glaciology and Geocry-ology, 25(1): 34-42.

Lu ZQ, Zhu YH, Zhang YQ, 2010. Major evidence for gas hydrateexistence in the Qilian Permafrost, Qinghai. Geosience, 24(2):329-336.

Shi YF, Pan BT, Li JJ, 1998. 15 million years of climate and environ-mental evolution in the Tibetan Plateau. In: Shi YF, Li JJ, Li BY(eds.). Uplift of the Qinghai-Xizang (Tibetan) Plateau and Envi-ronmental Change during Late Cenozoic. Guangdong Science andTechnology Press, Guangzhou, China, pp. 415-446.

Shi YF, Zheng BX, 1997. Glaciers and environments during the LastGlacial Maximum (LGM) on the Tibetan Plateau. Journal of Glac-iology and Geocryology, 19(2): 97-113.

Shi YF, Zheng BX, Li SJ, 1995. Studies on altitude and climatic envi-ronment in the middle and east parts of Tibetan Plateau duringQuaternary Maximum Glaciation. Journal of Glaciology and Geo-cryology, 17(2): 97-112.

Wang CS, Li YL, Li YT, 2006. Discussion on evaluation of oil and gasresources in Qinghai-Tibet Plateau. Acta Petrolei Sinica, 27(4):1-7.

Wang CS, Yi HS, Li Y, 2001. Basin of Geological Evolution and GasProspect Evaluation in Tibet Qiangtang. Geological Press, Beijing.

Xu XZ, Cheng GD, 1999. Research prospect and suggestions of gashydrates in permafrost regions on the Qinghai-Tibet Plateau. Ad-vance in Earth Sciences, 14(2): 201-204.

Zhang LX, Xu XZ, 2001. Gas hydrates and permafrost regions on theQinghai-Tibet Plateau. Natural Gas Geoscience, 12(1): 22-26.

Zhang PX, Zhang BZ, Lowenstein TK, Spencer RJ, 1993. On theOrigin of Ancient Unique Sylvite Evaporite—An example from theFormation of Sylvite in the Qarham Salt Lake in the Qaidam Basin.Science Press, Beijing, pp. 10-48.

Zhao ZZ, Li YT, Ye HF, 2000a. Tectonic Features and Basin Evolu-tion on the Qinghai-Tibet Plateau. Science Press, Beijing, pp.1-427.

Zhao ZZ, Li YT, Ye HF, 2000b. Marine Hydrocarbon Source Layer ofHydrocarbon Generation on the Qinghai-Tibet Plateau. SciencePress, Beijing, pp. 1-634.

Zhu YH, 2006. Production test from gas hydrate of Mackenzie Perma-frost, Canada. Advances in Earth Science, 21(5): 513-520.