西南石油大学学报(自然科学版)

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Geological Modeling of Fractured Volcanic Reservoir in Jinlong2#br# Oilfield,Xinjiang

DENG Xili1,2*, LI Shunming1, KONG Chuixian3, HE Hui1, JIANG Qingping3   

  1. 1. Research Institute of Petroleum Exploration and Development,CNPC,Haidian,Beijng 100083,China
    2. School of Earth and Space Sciences,Peking University,Haidian,Beijing 100871,China
    3. Research Institute of Petroleum Exploration and Development,Xinjiang Oilfield Corporation,PetroChina,Karamay,Xinjiang 834000,China
  • Online:2016-08-01 Published:2016-08-01

Abstract:

Recent years,the volcanic reservoirs of Jiamuhe Formationin the eastern slope belt of Zhongguai Uplift,northwestern
Junggar Basin,are key blocks for increasing storage and production in Xinjiang Oilfield. The geological modeling
of this area are made difficult by factors such as volcanic lithological facies and volcanic architecture identification,fracture
characterization and multi-medium parameter processing. This paper,based on lithological facies identification,elaborately
characterizes and quantitatively predicts the fractures by means of conventional loggings,FMI,pre-and post-stack seismic data.
Offset cut-off processing,azimuth non-equalization,super-bin stack and cokriging correction are adopted to assure the accuracy
of fracture prediction by pre-stack azimuth anisotropy. In the end,we applied the methodology of“hierarchy modeling+ equivalent
processing”to establishing a tectonic model reflecting fault-fracture system feature and an equivalent continuum parameter
model reflecting dual-medium flow feature,which lays foundation for fractured volcanic reservoir numerical simulation.

Key words: Jiamuhe Formation, volcanic rock, fracture prediction, hierarchy modeling, equivalent continuum model

CLC Number: