Diagenesis and porosity evolution of deep volcanic reservoirs in Songliao Basin

  • ZHOU Fengjuan ,
  • WANG Zhenqi ,
  • ZHI Dongming ,
  • GUAN Lijun ,
  • HU Qingqin ,
  • WU Xuewei
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  • 1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China; 2. Research Institute of Petroleum Exploration & Development-Langfang, PetroChina, Langfang 065007, China; 3. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China

Online published: 2008-12-15

Abstract

Based on core description, thin section analysis, pore character and microphotograph, the diagenesis and pore evolution of deep volcanic reservoirs in Songliao Basin are studied. It is believed that the rock types are mainly basalt, andesite, rhyolite, tuff and volcanic breccia. The reservoir spaces include primary pore, primary fracture, secondary pore and secondary fracture. The diagenesis and the pore evolution could be divided into two stages (eruption stage and post-eruption stage) which include condensation phase, thermogenesis phase, hypergenesis phase and burial diagenesis phase. The reservoir spaces are affected by the diagenesis events including metasomatism, faulting, pressure solution, deep denudation and hydrocarbon aggregation.

Cite this article

ZHOU Fengjuan , WANG Zhenqi , ZHI Dongming , GUAN Lijun , HU Qingqin , WU Xuewei . Diagenesis and porosity evolution of deep volcanic reservoirs in Songliao Basin[J]. Lithologic Reservoirs, 2008 , 20(4) : 33 -37 . DOI: 10.3969/j.issn.1673-8926.2008.04.006

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