摘要
油气藏中的轻烃在向介质中运移时,必然要和介质进行物质和能量的交换。依据轻烃与介质作用的本质,可以把轻烃在自然界的赋存状态分为游离态、溶解态、物理吸附态、化学吸附态及水合态。各赋存状态轻烃在介质的作用下存在着动态的平衡关系,且与油气藏的相关性有所不同。轻烃的定量提取分为相对定量提取与绝对定量提取,各赋存状态轻烃有着相应的定量计算公式。所分析出的各赋存状态轻烃的组分及含量特征具有重要的石油地质意义。
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 embrace abundant and important geochemical information.
出处
《天然气地球科学》
EI
CAS
CSCD
2007年第1期111-116,共6页
Natural Gas Geoscience
关键词
轻烃
赋存状态
分析技术
石油地质意义
Light hydrocarbon
Existing state
Analytic technique
Petroleum geological significance.
