摘要
利用自制的天然气C3～C8烃浓缩器，对天然气中微量C4～C7单体烃进行了浓缩，以此为样品做了试验分析研究，进而阐述了四川盆地不同成因天然气C4～C7烃类指纹的分布特征，并得出以下结论：天然气中C4～C7烃类组成、分布特征不仅与生烃母质密切有关，而且受成熟度的控制，还与天然气的运移作用有关；不同母质来源、不同热演化阶段的天然气，C4～C7轻烃的组成也明显不同；同时，天然气在运移过程中，由于地层水的溶解作用，轻烃的组成也会受到影响。
With self-made concentrator of C_3-C_8 hydrocarbon, micro C_4-C_7 free hydrocarbon in natural gas are concentrated and analyzed as experimental samples. Furthermore, the distribution characteristics of C_4-C_7 hydrocarbon fingerprints of the natural gas with different origins in the Sichuan Basin are expounded in this paper. The result shows: the compositions and distribution characteristics of C_4-C_7 hydrocarbons not only are closely related with hydrocarbon-generating parent materials, but also are controlled by theirs maturations and gas migrations; ②The compositions of C_4-C_7 hydrocarbons obviously varies with the parent material sources and thermal evolution stages; ③Moreover, owing to the solution of formation water, the compositions of C_4-C_7 hydrocarbons are affected during the migration of natural gas.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2006年第11期11-13,共3页
Natural Gas Industry
基金
CNPC中青年创新基金项目
四川省重点学科建设基金项目(编号:SZD0414)的资助。
关键词
天然气
烃类
浓缩
指纹
特征
天然气形成
气源对比
实验室试验
natural gas, hydrocarbon types, concentration, fingerprint, character, natural gas form, gas-source comparison, experiments in laboratory
