Formation and destruction processes of upper Sinian oil-gas pools in the Dingshan-Lintanchang structural belt, southeast Sichuan Basin, China

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• 作者：Shugen Liu (1)
  Zhijing Zhang (1)
  Wenming Huang (1)
  Guozhi Wang (1)
  Wei Sun (1)
  Guosheng Xu (1)
  Haifeng Yuan (1)
  Changjun Zhang (1)
  Bin Deng (1)
  
• 关键词：Sinian ; oil ; gas pool ; Dingshan ; Lintanchang structural belt ; Sichuan Basin
• 刊名：Petroleum Science
• 出版年：2010
• 出版时间：September 2010
• 年：2010
• 卷：7
• 期：3
• 页码：289-301
• 全文大小：3245KB
• 参考文献：1. Ao M C, L眉 T Z, Hu N F, et al. Lithological features of the Dengying Formation of the Sinian in Well Dingshan 1 in south-eastern part of Sichuan province and its comparison with neighbouring strata. Southern China Oil & Gas. 2006. 19(S1): 5鈥? (in Chinese)
  2. Barker C. Calculated volume and pressure changes during the thermal cracking of oil to gas in reservoirs. AAPG Bulletin. 1990. 74(8): 1254鈥?261
  3. Barth T and Bj酶rlykke K. Organic acids from source rock maturation: generation potentials, transport mechanisms and relevance for mineral diagenesis. Applied Geochemistry. 1993. 8(4): 325鈥?37 CrossRef
  4. Cander H. Interplay of water-rock interaction efficiency, unconformities, and fluid flow in a carbonate aquifer: Floridan aquifer system. In: Unconformities and Porosity in Carbonate Strata. AAPG Memoir. 1995. 63: 103鈥?24
  5. Dai J X. Pool-forming periods and gas sources of the Weiyuan gasfield. Petroleum Geology & Experiment. 2003. 25(5): 473鈥?80 (in Chinese)
  6. Dickson J A D and Saller A H. Identification of subaerial exposure surfaces and porosity preservation in Pennsylvanian and Lower Permian shelf limestones, eastern Central Basin platform, Texas. In: Unconformities and Porosity in Carbonate Strata. AAPG Memoir. 1995. 63: 239鈥?57
  7. Hu Z Q, Zhu G, Liu G S, et al. The folding time of the eastern Sichuan Jura-type fold belt: evidence from unconformity. Geological Review. 2009. 55(1): 32鈥?2 (in Chinese)
  8. Liang D G, Guo T L, Chen J P, et al. Some progress in studies of hydrocarbon generation and accumulation in marine sedimentary regions, southern China (Part 1): Distribution of four suits of regional marine source rocks. Marine Origin Petroleum Geology. 2008. 13(2): 1鈥?6 (in Chinese)
  9. Liu R B, Tian J C, Wei Z H, et al. Comprehensive research on effective hydrocarbon source rocks of lower strata from the Sinian to Silurian system in the southeast area of Sichuan province. Natural Gas Geoscience. 2006. 17(6): 824鈥?28 (in Chinese)
  10. Liu S G, Ma Y S, Huang W M, et al. Densification process of the upper Sinian Dengying Formation, Sichuan Basin. Natural Gas Geoscience. 2007. 18(4): 485鈥?96 (in Chinese)
  11. Liu S G, Ma Y S, Sun W, et al. Study of the differences of Sinian natural gas pools between Weiyuan gas field and the Ziyang gas-prone area, Sichuan Basin. Acta Geologica Sinica. 2008a. 82(3): 328鈥?37 (in Chinese)
  12. Liu S G, Ma Y S, Wang G Z, et al. Formation and conservation mechanisms of the high-quality reservoirs in Sinian-lower Palaeozoic in the Sichuan Basin. Petroleum Geology and Recovery Efficiency. 2008b. 15(1): 1鈥? (in Chinese)
  13. Liu S G, Sun W, Li Z W, et al. Tectonic uplifting and gas pool formation since the late Cretaceous epoch, Sichuan Basin. Natural Gas Geoscience. 2008c. 19(3): 293鈥?00 (in Chinese)
  14. Liu S G, Wang H, Sun W, et al. Energy field adjustment and hydrocarbon phase evolution in the Sinian-Lower Paleozoic, Sichuan Basin. Journal of China University of Geosciences. 2008d. 19(6): 700鈥?06
  15. Lu S F, Xue H T and Zong N N. The chemical kinetic study of the oil preservation threshold. Petroleum Exploration and Development. 2002. 29(6): 1鈥? (in Chinese)
  16. L眉 B F and Xia B. New knowledge about ejective structures in southeast Sichuan. Natural Gas Geoscience. 2005. 16(3): 278鈥?82 (in Chinese)
  17. McArthur J M, Burnett J and Hancock J M. Strontium isotopes at K/T boundary: discussion. Nature. 1992. 355(6355): 28 CrossRef
  18. Meng Q R, Wang E and Hu J M. Mesozoic sedimentary evolution of the northwest Sichuan Basin: Implication for continued clockwise rotation of the South China block. Geological Society of America Bulletin. 2005. 117(3鈥?): 396鈥?10 CrossRef
  19. Qin J Z, Jin J C and Liu B Q. Thermal evolution patterns of organic matter abundance in various marine source rocks. Oil & Gas Geology. 2005. 26(2): 177鈥?84 (in Chinese)
  20. Qin J Z, Liu B Q, Zheng L J, et al. Study of capability of hydrocarbon generation and expulsion from marine carbonate source rocks. Oil & Gas Geology. 2006. 27(3): 348鈥?55 (in Chinese)
  21. Qin J Z, Tengeer and Fu X D. Study of forming condition on marine excellent source rocks and its evaluation. Petroleum Geology & Experiment. 2009. 31(4): 366鈥?72 (in Chinese)
  22. Sun W, Liu S G, Han K Y, et al. The petroleum geological condition and exploration prospect analysis in the Sinian, Sichuan Basin. Petroleum Geology & Experiment. 2009. 31(4): 350鈥?55 (in Chinese)
  23. Sun W, Liu S G, Ma Y S, et al. Determination and quantitative simulation of gas pool formation processes of Sinian cracked gas in the Weiyuan-Ziyang area, Sichuan Basin. Acta Geologica Sinica. 2007. 81(8): 1153鈥?159 (in Chinese)
  24. Sun W, Liu S G, Wang G Z, et al. Petroleum formed condition and process research for the Sinian to Lower Paleozoic in the Dingshan structure in the southeast of the Sichuan Basin. Geological Science and Technology Information. 2010. 29(1): 49鈥?5 (in Chinese)
  25. Tian H Q, Guo T L, Hu D F, et al. Marine lower assemblage and exploration prospects of the central Guizhou Uplift and its adjacent areas. Journal of Palaeogeography. 2006. 8(4): 509鈥?18 (in Chinese)
  26. Wagner P D, Tasker D R and Wahlman G P. Reservoir degradation and compartmentalization below subaerial unconformities: limestone examples from west Texas, China, and Oman. In: Unconformities and Porosity in Carbonate Strata. AAPG Memoir. 1995. 63: 177鈥?94
  27. Wang Z C, Zhao W Z, Zhang L, et al. Tectonic Sequence and Natural Gas Exploration of the Sichuan Basin. Beijing: Geological Publishing House. 2002. 149鈥?56 (in Chinese)
  28. Wu S C. Introduction of Petroleum Resources Assessment-from 鈥淒igital Earth鈥?to 鈥淒igital Reservoir鈥?(Second Edition). Beijing: Petroleum Industry Press. 2005. 268鈥?73 (in Chinese)
  29. Yang C Q, Yue Q L and Cao B. Natural gas exploration prospect and direction in the Lower Paleozoic in the Qianzhong Uplift and its periphery. Geoscience. 2008. 22(4): 558鈥?66 (in Chinese)
  30. Zhang Y C. Prototype Analysis of Petroliferous Basins in China. Nanjing: Nanjing University Publishing House. 1997. 13鈥?3 (in Chinese)
  31. Zhou M H and Liang Q Y. Petroleum geological conditions of the lower assemblage in the Qianzhong Uplift and peripheral regions. Marine Origin Petroleum Geology. 2006. 11(2): 17鈥?4 (in Chinese)
  
• 作者单位：Shugen Liu (1)
  Zhijing Zhang (1)
  Wenming Huang (1)
  Guozhi Wang (1)
  Wei Sun (1)
  Guosheng Xu (1)
  Haifeng Yuan (1)
  Changjun Zhang (1)
  Bin Deng (1)
  
  1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Sichuan, 610059, China
  
• ISSN：1995-8226

文摘

The lower Cambrian Niutitang Formation hydrocarbon source rocks at the Dingshan-Lintanchang structure in the southeast Sichuan Basin were of medium-good quality with two excellent hydrocarbon-generating centers developed in the periphery areas, with a possibility of forming a medium to large-sized oil-gas field. Good reservoir rocks were the upper Sinian (Dengying Formation) dolomites. The mudstone in the lower Cambrian Niutitang Formation with a good sealing capacity was the cap rock. The widely occurring bitumen in the Dengying Formation indicates that a paleo oil pool was once formed in the study area. The first stage of paleo oil pool formation was maturation of the lower Cambrian source rocks during the late Ordovician. Hydrocarbon generation from the lower Cambrian source rocks stopped due to the Devonian-Carboniferous uplifting. The lower Cambrian source rocks then restarted generation of large quantities of hydrocarbons after deposition of the middle Permian sediments. This was the second stage of the paleo oil pool formation. The oil in the paleo oil pool began to crack during the late Triassic and a paleo gas pool was formed. This paleo gas pool was destroyed during the Yanshan-Himalayan folding, uplifting and denudation. Bitumen can be widely seen in the Dengying Formation in wells and outcrops in the Sichuan Basin and its periphery areas. This provides strong evidence that the Dengying Formation in the Sichuan Basin and its periphery areas was once an ultra-large structural-lithologic oil-gas field, which was damaged during the Yanshan-Himalayan period.