Analysis and application of carbon-bearing rate of reservoirs in the Puguang gas field, northeastern Sichuan Basin

被引：0
作者：
Zhao X. [1 ,2 ]
Chen J. [2 ]
Guo W. [2 ]
Liu G. [2 ]
Liu F. [2 ]
Xu L. [3 ]
机构：
[1] Beijing Research Institute of Uranium Geology, Beijing
[2] State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing
[3] Exploration and Development Research Institute, Daqing Oilfield Company Limited, Daqing
来源：
Chinese Journal of Geochemistry | 2013年 / 32卷 / 4期
关键词：
asphalt content; carbon-bearing rate of reservoir; carbonate reservoir; physical property of reservoir;
D O I：
10.1007/s11631-013-0648-9
中图分类号：
学科分类号：
摘要：
With wells Puguang 2 and 6 in the Puguang gas field as the research objects by choosing organic carbon as characterization reservoir carbon (indirectly reflecting the bitumen contents), this paper discusses the relationship between bitumen contents and lithologic characteristics, reservoir characteristics, and calculates the volume of paleooil and oil cracked gas. The study shows that the organic carbon contents of the reservoirs are related to lithologic characteristics. Due to variations in the particle size or structure of rocks, the porosity of the reservoirs varies, furthermore, it will influence the contents of organic carbon. And the relationship between these two parameters is positive. Based on the analysis, the relationship between total organic carbon (TOC) and the contents of reservoir bitumen also appears to be positive. The volume of paleo-oil and cracked gas of the Changxing-Feixian'guan Formation are respectively 495 million tons and 360.4 billion m3 through the calculation of reservoir's organic carbon. Therefore, the relationship between carbon-bearing rate and characteristics of the reservoirs can be used to indirectly evaluate reservoir types. Besides, the carbon-bearing rate of the reservoirs also reflects the contents of reservoir bitumen, paleo-oil as well as natural gas. It makes a new approach for the study of the types of reservoirs and the amounts of paleo-oil and oil cracked gas in northeastern Sichuan Basin. © 2013 Science Press, Institute of Geochemistry, CAS and Springer-Verlag Berlin Heidelberg.
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页码：398 / 405
页数：7
相关论文
共 25 条
  • [1] Cai X., Zhu Y., Huang R., Geochemical behaviors and origin of reservoir bitumen in Puguang gas pool [J], Oil & Gas Geology, 27, pp. 40-47, (2006)
  • [2] Cai C., Li K., Zhu Y., Xiang L., Jiang L., Tenger, Cai X., Cai L., TSR origin of sulfur in Permian and Triassic reservoir bitumen, East Sichuan Basin, China [J], Organic Geochemistry, 41, pp. 871-878, (2010)
  • [3] Cai L., Rao D., Pan W., Zhang X., The evolution model of the Puguang gas field in Northeastern of Sichuan [J], Petroleum Geology & Experiment, 27, pp. 462-467, (2005)
  • [4] Cai X., Ma Y., Li G., Hu R., The reservoir characteristics of the Lower Triassic in Puguang gas field [J], Journal of Oil and Gas Technology, 27, pp. 43-45, (2005)
  • [5] Cai X., Zhu Y., Huang R., Geochemical behaviors and origin of reservoir bitumen in Puguang gas pool [J], Oil & Gas Geology, 27, pp. 40-47, (2006)
  • [6] Chang X., Han Z., Xu Y., Shang X., Yan C., Geochemistry and origin of deep-seated cracked gas on the northern slope of the Dongying Sag, Shandong Province [J], Chinese Journal of Geochemistry, 30, pp. 353-358, (2011)
  • [7] Hu S., Fu X., Wang T., Li Y., Bitumen-sealed belt in reservoirs its implication to petroleum exploration [J], Natural Gas Geoscience, 18, pp. 99-102, (2007)
  • [8] Huang J., Genetic classification of natural gases in the oil-gas zone and its application in the Sichuan Basin [J], Chinese Journal of Geochemistry, 12, pp. 71-83, (1993)
  • [9] Li J., Xie Z., Dai J., Zhang S., Zhu G., Liu Z., Geochemistry and origin of sour gas accumulations in the northeastern Sichuan Basin, SW China [J], Organic Geochemistry, 36, pp. 1703-1716, (2005)
  • [10] Ma Y., Geochemical characteristic and origin of natural gases form Puguang gas field on eastern Sichuan Basin [J], Natural Gas Geoscience, 19, pp. 1-7, (2008)
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