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鄂西渝东地区晚燕山—喜马拉雅期剥蚀量

DOI: 10.6038/cjg20140913, PP. 2878-2884

Keywords: 鄂西渝东,剥蚀量,喜马拉雅期,古地温梯度,镜质体反射率

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Abstract:

鄂西渝东地区是中国南方海相油气勘探的重要区块,又是目前页岩气勘探的热门地区,该地区晚燕山—喜马拉雅期以来长期遭受隆升剥蚀.剥蚀量是烃源岩热演化、油气藏形成与演化、资源量计算和盆地模拟中不可缺少的基础参数.考虑到剥蚀量恢复方法固有的局限性和适用条件,本文在分析了古温标镜质体反射率Ro剖面特征之后,采用古地温梯度反演法进行钻井剥蚀量恢复,然后分析钻井剥蚀量与钻井开孔层位之间的相关性,再与地质图相结合编制剥蚀量平面分布图.结果表明:鄂西渝东地区古温标Ro剖面不存在明显的“错断”、“跳跃”现象,记录的古地温为达到最大埋深时的古地温;钻井剥蚀量与钻井开孔层位之间具有明显的相关性,开孔层位越老,剥蚀量越大,反之亦然;晚燕山—喜马拉雅期剥蚀量总体上从东往西逐渐变小.东部的利川复向斜剥蚀量为2000~4000m,中部的石柱复向斜为1500~2500m,方斗山以西为1000~1500m.

References

[1]  Fu Y X. 2000. The relations between the characteristics of structures and hydrocarbon accumulation between the west of Hubei province and the Chongqing province. Jianghan Petroleum Science and Technology (in Chinese), 10(2): 63-66, 72.
[2]  Hu C X, Gao L, Liu Y. 2000. Tectonic characteristics and evolution in the Western Hubei Eastern Chongqing area. Jianghan Petroleum Science and Technology (in Chinese), 10(2): 59-62.
[3]  Hu S, Wang J S, Zhang R Y. 1999. Estimation of the amount of uplift and erosion across an unconformity using vitrinite reflectance data. Petroleum Exploration and Development (in Chinese), 26(4): 42-45.
[4]  Lu Q Z, Ma Y S, Guo T L, et al. 2007. Thermal history and hydrocarbon generation history in Western Hubei-eastern Chongqing Area. Chinese Journal of Geology (in Chinese), 42(1): 189-198.
[5]  Sheng X C, Wang S H, Wen K D, et al. 2004. Tectonics and sedimentology of Shizhu palaeohigh in western Hubei eastern Chongqing area. Marine Origin Petroleum Geology (in Chinese), 9(2): 43-52.
[6]  Shi H C, Shi X B, Yang X Q, et al. 2011. Exhumation process of the Fangdoushan-Shizhu fold belt in Meso-Neozoic and its tectonic significance in western Hubei-eastern Chongqing. Progress in Geophysics (in Chinese), 26(6): 1993-2002.
[7]  Sweeney J J, Burnham A K. 1990. Evaluation of a simple model of vitrinite reflectance based on chemical kinetics. AAPG, 74(10): 1559-1570.
[8]  Xiao K H, He J H. 2001. Factors affecting hydrocarbon reservoir formation and future exploration planning in west Hubei and East Chongqing. Journal of Jianghan Petroleum University of Staff and Workers (in Chinese), 14(2): 38-40.
[9]  Yuan Y S, Zheng H R, Tu W. 2008. Methods of eroded strata thickness restoration in sedimentary basins. Petroleum Geology & Experiment (in Chinese), 30(6): 636-642.
[10]  Yuan Y S, Sun D S, Zhou Y, et al. 2010. Determination of onset of uplifting for the Mid-upper Yangtze area after Indosinian event. Chinese J. Geophys.(in Chinese), 53(2):362-369.

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