Journal of Jilin University(Earth Science Edition) ›› 2012, Vol. 42 ›› Issue (6): 1927-1934.

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Log Responses and Its Corresponding Geological Interpretation of Deep Volcanic Reservoir in Songliao Basin

Wu Yan-xiong1，2，Wang Pu-jun2，Bian Wei-hua2，Gao You-feng2，Lang Yuan-qiang2   

  1. 1.Qinghai Oilfield Research Institute of Exploration ＆ Development，Dunhuang736200,Gansu, China;
    2.College of Earth Sciences, Jilin University, Changchun130061, China
  • Received:2011-11-26 Online:2012-12-26 Published:2012-11-26

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Abstract: In order to study the correspondence between logging information and geological property, we use laboratory data to calibrate logging data, and develop geological interpretation model between petrology and 12 traditional logging concerning common volcanic rocks, as well as 8 FMI methods. The results show that the characteristics of log response from volcanic rocks are common; basic, intermediate and acid volcanic rocks can be distinguished by GR and density curves; resistivity and three porosity curves have a significantly response to texture, structure and aperture. Imaging modes of 8 kinds are summarized as following. Tuff structure shows highresistance and highlight spot mode. Primary stomata shows low-resistance and dark spots mode. Rhyolite structure shows yellow and white and mid-high-resistance and sine curve mode. Breccia structure shows high resistance light block and low resistance dark spots mode. Low angle fracture shows low resistance sine curve mode. Sedimentary volcanic breccia structure shows yellow and orange mid-low resistance sine curve mode. Pyroclastic solution pores show light block containing some dark spot mode. Massive structure shows light block mode.

Key words: Songliao basin, volcanic rocks, reservoirs, conventional logging, imaging logging, geological interpretation

CLC Number: 

  • P631.8
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