Xinjiang Petroleum Geology ›› 2008, Vol. 29 ›› Issue (5): 561-564.

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The Porosity Evolution of Volcanic Reservoir of Carboniferous in Luxi Area, Junggar Basin

ZHANG Shun-cun1,2, HUANG Zhi-jiu3, KONG Yu-hua3, SHI Ji-an1, LEI Tian-zhu1, FANG Lin-hao1,2   

  1. 1. Key Laboratory of Gas Geochemistry, Institute of Geology and Geophysics, CAS, Lanzhou, Gansu 730000, China;
    2. Graduate School,CAS, Beijing 100049, China;
    3. Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay,Xinjiang 834000, China
  • Received:2008-04-16 Published:2020-10-19

Abstract: The volcanic reservoir of Luxi area in hinterland of Junggar basin is made up of primary pores, secondary pores and fractures with different combinations. The evolution of the volcanic reservoir spaces has five stages: the formation stage, the efflorescence and denudation stage, the embedding and tectonic movement stage, the dissolution and modification stage and the oil-gas accumulation stage. In addition, five diagenesis factors influencing the volcanic reservoir spaces are presented, including tectonic breaking, efflorescence and eluviation, corrolding, dissolution, fill and cementation.

Key words: Junggar basin, Carboniferous, volcanic rock, porosity, pore, reservoir space

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