Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Controlling effect of diagenetic facies on Upper Triassic tight reservoir in Moxi Gas field

CHEN Gui-ju1,JIANG Zai-xing1,TIAN Ji-jun2,LI Xi-zhe3,ZHANG Man-lang3 (1.Resource Institute of China University of Geosciences,Beijing 100083,China;2.Guangzhou Geochemistry Institute of Chinese Academy of Sciences,Guangzhou 510640,China;3.Langfang Branch Institute of Petroleum Exploration and Development Research Institute,Langfang 065007,China)  
Sandstone reservoirs of second and forth members of Upper Triassic Xiangxi Formation are characterized by compaction,cementation,corrosion and fracturing,lacking of carbonate cementation in early stage and local carbonate filling in late stage.The reservoirs are low porosity,low permeability,and fracture-porosity sandstone reservoirs,which are main gas reservoirs of this area.Corrosion of unstable mineral is the main source of secondary pores,and corrosion of stable mineral quartz improves secondary pores.Anxian movement and cross-formational flow in Himalayan stage are important factors to form good sandstone reservoirs.With effect of Longmenshan nappe structure in the west and Micangshan-Dabashan nappe structure in northeast,two adjacent stress shearing belts form in Moxi Gas Field.Sandstone reservoirs of Second and Forth Members of Upper Triassic Xiangxi Formation are improved by development of fractures which are influenced by shearing belts and paleo-hammock.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved