摘要
根据天然气碳、氢同位素组成特征，将塔里木盆地天然气划分为海相成因天然气，陆相成因天然气和海陆相混合气三大类。海相天然气分布在满加尔古生界海相生油气凹陷的南北两侧，塔中隆起和塔北隆起以南；陆相天然气分布在库车中生界陆相生油气坳陷及塔北隆起以北；海陆相混合气分布在塔北隆起中段雅克拉构造和东河塘部分井、巴什托普背斜群５井（Ｃ）中。柯克亚背斜天然气来源比较复杂，以陆相煤型气为主，可能混有海相油气。
According to component characteristics of carbon and hydrogen isotopes, natural gas in Tarim basin can be classified into continental facies, marine facies and miscible one. Marine facies gas distributed in south and north sides of Mangar Paleozoic marine source sag, Tazhong uplift and south of Tabei uplift; continental facies gas in Kuqa Mesozoic source sag and north of Tabei uplift; marine and continental conbination gas in Yakela structure, some wells in Donghetang and Well Qun 5 in Bashituopu anticline in Tazhong uplift. Gas from Kekeya anticline are dominented by continental coalformed gas possibly filled with marine hydrocarbon.
出处
《新疆石油地质》
CAS
CSCD
1998年第2期126-131,共6页
Xinjiang Petroleum Geology
关键词
塔里木盆地
天然气
碳同位素
氢同位素
油气分布
Tarim basin Natural gas Carbon isotope Hydrogen isotope Origin Classification Oil and gas distribution
