西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (6): 57-61.DOI: 10.3863/j.issn.1000-2634.2008.06.014

• 地质勘探 • Previous Articles     Next Articles

DIAGENESIS OF TIGHT STANDSTONE AND THE INFLUENCE ON RESERVOIR

LEI Bian-jun1 LIU Bin2 LI Shi-lin3 WANG Xiao-rong4 LIU Hua-ming5   

  1. 1.Resource and Environment Institute，Southwest Petroleum University，Chengdu Sichuan 610500，China；2.Institute of National Gas，Exploration and Development Research Institute，Jilin Oilfield Company，Songyuan Jilin 138000，China；3.East Sichuan Gas Field，Southwest Oil and Gas Field Company，Chongqing 400000，China；4.Central Sichuan Oil and Gas Field，Southwest Oil and Gas Field Company，Suining Sichuan 629000，China；5.Changchun Oil Production of Jilin Oilfield Company，Changchun Jilin 130000，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-12-20 Published:2008-12-20

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Abstract:

The sandstone reservoirs of Shan1He8 member are tight quartz sandstones with many syndepositional volcanics in upper palezoic sandstone of Wushenzhao

Tongwangcheng area，there is a tight relation between depositiondiagenesis and pore evolution.On the basis of the sedimentary facies research，according to the data of

Xdiffraction，scanning electron microscope and more than 300 rock slides from 20 wells，it is pointed out that the main diagenesis of sandstone reservoirs are hydrate

reaction，compaction，alteration of detrital material，metasomasis，cementation and dissolution in the sandstone reservoirs of He8，Shan1 member.The digenetic series are

hydrate reaction  compaction  secondary growth of quartz  （carbonatation of volcanics，kaolinization of volcanics and feldspar，silication of volcanics） 

dissolution  cementation of authigenous quartz  cementation of kaolinite  cementation of calcite.Compaction is main destructive diagenesis，while dissoluion is

main constructive diagenesis，both of them impact reservoirs a lot.

Key words: Ordos Basin, upper Palezoic, sandstone, diagenesis, pore evolution

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