西南石油大学学报(自然科学版)

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Resistivity Parametric Inversion and Volcanic Rock Reservoir
Prediction in Xiquan Area

Guan xu1, Zhou Lu1, Song Yong2, Chen Dayou3, Wang Lijun4   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    2. Exploration and Development Research Institute,Xinjiang Oilfield Company,CNPC,Karamay,Xinjiang 834000,China
    3. PKKR,PK Project of Chinese Oil Kazakhstan Company,Kyzylorda 120001,Kazakhstan
    4. Zhanjiang Branch,CNOOC,Zhanjiang,Guangdong 524057,China
  • Online:2013-06-01 Published:2013-06-01

Abstract:

The characteristics of volcanic rock distribution which located in Xiquan Area,eastern Junggar Basin,is so complex.
Moreover,the quality of seismic data,affected by volcanic rock,is in poor quality. As a result,using conventional seismic
reservoir prediction method to identify the volcanic reservoir effect is not obvious. Through analyzing the characteristics of both
seismic section and log response,the paper utilizes resistivity curve reconfiguration to form sonic curve,improving the effect
of acoustic impedance inversion in identifying volcanic reservoir. In addition,on the base of statistical analysis of volcanic
reservoir,recognising beneficial reservoir with differential resistivity and amplitude difference of resistivity,and combining
with high-resolution wave impedance inversion and resistivity parameter inversion of information fusion,can be used to predict
the favorable reservoir’s distribution area of carboniferous volcanic rock. The application of actual data demonstrated that
differential resistivity parametric inversion can better reflect the changing characteristics of volcanic reservoir plane.

Key words: Junggar Basin, Xiquan Area;volcanic rock, reservoir prediction, curve reconfiguration, resistivity parameter
inversion