Oil & Gas Geology ›› 1990, Vol. 11 ›› Issue (1): 62-72.doi: 10.11743/ogg19900109

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DIAGENESIS OF JURASSIC SANDSTONES IN THE SOUTH MARGIN OF JUNGGAR BASIN,XINJIANG,AND THE PORE EVOLUTION

Hu Weiyuan1, Zhou Jincai2, Ma Chuandong2, Shi Xuanyu2   

  1. 1. 05 Project Administration, Xinan Bureau of Petroleum Geology;
    2. Research Institude of Petroleum Exploration and Development, Xinjing Petroleum Administration
  • Received:1988-11-26 Revised:1989-07-12 Online:1990-03-25 Published:2012-01-16

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Abstract:

This paper places emphasis on the diagenesis and its sequence for sandstones of the Lower Jurassic Sangonghe Formation,the Middle Jurassic Xishanyao and Toutun he Formations.On this base,the con-trolling effect and the property of the evolution of porosity by diagenesis are described.The studyshows that the preservative period of valuable pores are the shallow buried stage and deep buried stageafter the formation of secondary pores.