Structural characteristics of the basement and the prospective of favorable oil and gas blocks in the Tacheng basin

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• 作者：Guoqing Zhang (1)
  Junmeng Zhao (2)
  Hua Bai (1)
  Ming Wan (1)
  Xiaoyang Guo (1)
  
• 关键词：northern Xinjiang ; Tacheng basin ; basement structure ; basin and mountain relationship ; tectonic unit division ; favorable area ; P315.2
• 刊名：Earthquake Science
• 出版年：2012
• 出版时间：December 2012
• 年：2012
• 卷：25
• 期：5-6
• 页码：527-534
• 全文大小：1504KB
• 参考文献：1. Bureau of Geology and Mineral Resources in Xinjiang (1985). / Geological Maps of 1:2 000 000. Geological Publishing House, Beijing, 1 (in Chinese).
  2. Dong L H, Qu X, Zhu Z X and Zhang L C (2010). Tectonic evolution and metallogenesis of Xinjiang. / Geology of Xinjiang 28(4): 351鈥?57 (in Chinese with English abstract).
  3. Feng Q W (2009). / Inversion of Gravity and Magnetic Studies of Tacheng Basin Basement. [PhD Dissertation]. Xinjiang University, 脺r眉mqi, 48鈥?1 (in Chinese with English abstract).
  4. Feng Q, Zheng G H, Zhang X F and Chen C (2009). Tacheng basin joint inversion of gravity, magnetic, electricity, seismic of Carboniferous basement. / Journal of Xinjiang University 26(3): 242鈥?47 (in Chinese with English abstract).
  5. Gu Y L and Fang X Y (2011). Paleozoic source rock evaluation in Tacheng basin. / Scientific and Technological Advice (28): 123 (in Chinese with English abstract).
  6. Jiang Y Q, Gao G, Liu G D, Wang X L, Pei L X, Xiang B L and Tang Y (2012). Tacheng basin characteristics and hydrocarbon-generating potential of hydrocarbon source rock of Carboniferous in China. / Test Geology for Oil 34(4): 427鈥?36 (in Chinese with English abstract).
  7. Pei L X, Gao G, Wang X L, Liu G D, Zhang Y Q and Tang Y (2012). Jeminay basin in northern Xinjiang and characteristics of Carboniferous hydrocarbon source rock in Tacheng basin. / Natural Gas in Earth Sciences 23(1): 88鈥?0 (in Chinese with English abstract).
  8. Wang G P and Wu G T (1990). / Geology Memories of Xinjiang. Geological Publishing House, Beijing, 112鈥?94 (in Chinese).
  9. Zhang C and Huang X (1992). Age and environment of ophiolite of western Junggar, Xinjiang. / Geology Reviews 38(6): 510鈥?12 (in Chinese with English abstract).
  10. Zhang L C, Liu D Q and Tang Y L (1990). / Xinjiang鈥?em class="a-plus-plus">s Treasure. Xinjiang People鈥檚 Press, 脺r眉mqi, 269鈥?31 (in Chinese).
  11. Zhu B Q and Feng Y M (1994). Plate structure and evolution in West Junggar, Xinjiang. / Xinjiang Petroleum Geology 12(2): 103鈥?04 (in Chinese with English abstract).
  
• 作者单位：Guoqing Zhang (1)
  Junmeng Zhao (2)
  Hua Bai (1)
  Ming Wan (1)
  Xiaoyang Guo (1)
  
  1. Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, 834000, China
  2. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China
  
• ISSN：1867-8777

文摘

The Tacheng basin has been identified as a Carboniferous basement with a central uplift, surrounded by orogenic belts. This identification was based on the comprehensive analysis of field outcrops, regional magnetic and gravimetric data, skeleton seismic profiles, magnetotelluric profiles and drilling data. Here, we present gravimetric and magnetic data analyses of the basement structures of the Tacheng basin and its base formation. We also provide a magnetotelluric profile analysis of the structural features and tectonic framework of basin-mountain patterns. We use local geology, drilling data, and other comprehensive information to document the tectonic framework of the basement of the basin. Small-scale nappe structures are found in the northern basin, whereas stronger and more pronounced thrusting structures are found to the south and east of the basin. The basin is divided into four first-order tectonic units: a central uplift, a northern depression, a southeastern depression and a western depression. In addition, the Emin sag is suggested as a possible reservoir for oil and gas.