ANALYTIC TECHNIQUES AND PETROLEUM GEOLOGICAL SIGNIFICANCE OF DIFF ERENT EXISTING STATES OF LIGHT HYDROCARBONS
Received date: 2006-05-12
Revised date: 2006-08-25
Online published: 2008-06-20
When light hydrocarbons migrate from oil and gas reservoirs to the surrounding areas, they will exchange substances and energy with the surrounding materials. According to the essence of action, the existing states of the light hydrocarbons can be divided into five kinds: free hydrocarbon, dissolved hydrocarbon, geophysically adsorbed hydrocarbon, geochemically adsorbed hydrocarbon and hydration hydrocarbon. There is a dynamical equilibrium between five existing states of the light hydrocarbons. The relativity of every existing state to the petroleum reservoirs is different. We can quantify the light hydrocarbons comparatively or absolutely by using the corresponding quantification formulae. The physicochemical adsorption states and compositional characteristics of light hydrocarbons embr ace abundant and important geochemical information.
LI Guang-zhi,HU Bin,DENG Tian-long,YUAN Zi-yan . ANALYTIC TECHNIQUES AND PETROLEUM GEOLOGICAL SIGNIFICANCE OF DIFF ERENT EXISTING STATES OF LIGHT HYDROCARBONS[J]. Natural Gas Geoscience, 2007 , 18(1) : 111 -116 . DOI: 10.11764/j.issn.1672-1926.2007.01.111
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