bidi-language: AR-SA">Dissolution Fractionation Model of Natural Gas Components and Its Application
详细信息
- 责任者：Cheng Fuqi (.Research Institute of Geological Sciences of Shengli Oil Field ; Dongying 257015 ; China) ; Jin Qiang
- 刊名：Geological Journal of China Universities
- 出版年：2008
- 卷期：14(1)
- 关键词：天然气 ; natural gas
- 页码：p.120-125
- 图表：1 illus., 5 tables, 21 refs.
- 分类号：1003
- issnNo：ISSN1006-7493
- isbnNo：CN32-1440/P
摘要
bidi-language: AR-SA">Because of dissolving ability difference among different gas components, dissolution itself could cause original components of natural gas to be changed. Based on the Henry’s Law, a dissolution fractionation model of gas components was established. The model calculation shows that, the original gas components in the Sinian reservoir of Weiyuan field are CH4-72. 70%, C2H6-0. 09%, CO2-22. 41% and N2-4.07%, and the dryness coefficient (C1/C1-5) is 99. 876%. Because of dissolution the CO2 contents in natural gas decreased greatly while hydrocarbon gases contents increased slightly. Resumption of the original components of natural gas is helpful to genetic discrimination and gas-source correlation.