The application of continuous electromagnetic profiling (CEMP) to Ruoqiang sag of the southern Altun Mountains is described in this paper. Because of the undulating landform, static electromagnetic effect is serious, and underground resistivity varies considerably. Robust processing applications, static correction and CEMP handling with terrain two-dimensional continuum inversion imaging can yield high inversion precision in line with the actual situation. Making full use of the complementary advantages of seismic and non-seismic survey, the author established the structural interpretation model so as to deepen the understanding of the geological structure. It is detected that the left twisting slip of the Altun fault system caused the formation of piedmont 3 groups of NEE-striking faults parallel to the Altun Mountains, and that the strike slip movement caused the piedmont depression to exhibit the concave and convex tectonic pattern of the Altun Mountains in Ruoqiang sag. It is inferred that the long distance overthrust nappe towards Ruoqiang Sag made the Proterozoic Paleozoic strata thrust onto the Mesozoic strata, and therefore Altun forelands possibly have covered Jurassic strata characterized by large thickness, great burial depth and relatively high maturity.
赵亮. 连续电磁剖面法探测油气藏有利构造区——以若羌凹陷南部阿尔金山前区为例[J]. 物探与化探, 2015, 39(4): 673-677.
ZHAO Liang. The application of continuous electromagnetic profiling method to the exploration of oil and gas: A case study of Ruoqiang sag in Altun forelands. Geophysical and Geochemical Exploration, 2015, 39(4): 673-677.
[1] 刘宏,刘东琴.连续电磁剖面法在山前带勘探中的应用[J].石油物探,2004,43(5)493-496.[2] 沈亚,陈元忠,孙维军,等.柴达木盆地地震地质研究新进展.石油地球物理勘探,2008,43(s):146-150.[3] 刘宏.塔东南坳陷石油地质研究及远景目标评价[D].成都:成都理工大学, 2005.[4] 刘永江,葛肖红,叶慧文,等.晚中生代以来阿尔金断裂的走滑模式[J].地球学报,2001,22(1):23-28.[5] 李驰, 于鹏, 李波, 等.合理选择炸药震源最佳激发条件的因素分析[J]. 石油物探, 1997, 36(3): 105-111.[6] Dossary S A,Marfurt K J.3Dvolumetric Multispectral estimates of reflector and roation[J].Geophysics, 2006,71(1):41-47.[7] 杨庆道,王伟锋,尹以东,等.弯线地震勘探技术应用中的若干问题[J].石油地球物理勘探,2011,46(3):364-369.[8] Ziolkowski A, Hobbs B A, Wright D A. First directhydrocarbon detection and reservoir monitoring using transient electromagnetics[J].First Break,2002,20(4):224-225.[9] 李晓昌.连续电磁剖面法在青藏高原北羌塘盆地龙尾湖区块构造详查中的应用[J].物探与化探,2010,34(6):303-307.[10] Eidesmo T, Ellingsrud S, MacGregor L M,et al. Sea bed logging (SBL), a new methodfor remote and direct identification of hydrocarbon filled layers in deepwater areas[J].First Break,2002,20(3):144-152.[11] Hare J L,Ferguston J F,Aiken C L,et al.The 4-D microgravity method for waterflood surveillance:A model study for the Prudhoe Bay reservoir[J].Alaska Geophysics,1999,64(1):78-87.[12] 陈荣林,胡民. 塔里木盆地东南断陷区侏罗系含油砂岩的发现及油源研究[J]. 科学通报,1996,41(18):1685-1688.