Oil & Gas Geology ›› 2008, Vol. 29 ›› Issue (4): 491-501,478,484.doi: 10.11743/ogg20080412

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Fluid inclusion types and their geological significance in petroliferous basins

Liu Dehan, Xiao Xianming, Tian Hui, Lu Jialan, Min Yushun   

  1. SKLOG, Guangzhou Institute of Geochemistry, CAS, Guangzhou, Guangdong 510640, China
  • Received:2008-06-10 Online:2008-08-24 Published:2012-01-16

Abstract:

This paper presents a systematic nomenclature and taxonomy for fluid inclusions.Three groups of inclusions,namely the hydrocarbon inclusions,hydrocarbon-containing inclusions,and aqueous/non-hydrocarbon inclusions ,have been recognized based on microscopic fluorescence and transmitted light properties of inclusions.The hydrocarbon inclusions can be further divided into nine types based on their composition and phase characteristics :liquid hydrocarbon-liquid-gaseous hydrocarbon inclusions,gaseous hydrocarbon inclusions,bitumen-containing inclusions,hydrocarbon-bearing aqueous inclusions,hydrocarbon-bearing gaseous inclusions,liquid phase aqueous inclusions,two-phase aqueous inclusions,non-hydrocarbon gaseous inclusions,and childmineral-bearing aqueous inclusions.The liquid hydrocarbon-liquid-gaseous hydrocarbon inclusions can also be divided into four subclasses:heavy-oil inclusions,medium-oil inclusions,light-oil inclusions,and condensed oil inclusions.In addition,the paper also focuses on the distribution patterns of hydrocarbon inclusion in reservoirs, source rocks,and carrier beds,and the geological application of these fluid inclusions to the generation,migration,accumulation,and evolution of hydrocarbon.

Key words: hydrocarbon inclusion, aqueous inclusion, CO2-inclusion, petroliferous basin

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