摘要
库车坳陷天然气甲烷的氢同位素组成分布为-185‰～-156‰,除DW10525井为-156‰外,其余9个样品相对较轻,基本轻于-170‰,而DW10525井的δ13C1值为-28.5‰,也相对较重;库车坳陷天然气乙烷氢同位素组成分布为-139‰～-113‰。塔中地区和塔东地区天然气甲烷氢同位素组成分布为-168‰～-151‰,范围相对较小。轮南地区天然气甲烷氢同位素分布为-190‰～-140‰,分布范围较广,乙烷氢同位素组成分布为-187‰～-145‰,与甲烷的分布范围相近,大多数样品同时出现甲烷、乙烷的碳、氢同位素组成序列倒转的现象。塔西南地区的阿克1井天然气甲烷的碳同位素组成为-23.0‰,氢同位素组成为-131‰,均较重,这可能与深部物质的参与有关。
The natural gas carbon and hydrogen isotopic compositions in Tarim Basin show that methane δD in Kuche petroleum system ranges from-185‰ to- 156‰ （most〈170‰） ,ethane δD ranges from-139‰ to-113‰. Methane δD in Tazhong and Tadong areas ranges from-168‰ to -151‰. Methane δD in Lunnan areas ranges from -190‰ to -140‰, and ethane δD in Lunan areas ranges from -187‰ to -145‰. Most samples show hydrogen isotopic reverses between methane and ethane, Carbon and hydrogen isotopic composition of gases from Well A＇ke 1 is very enrich in ^13C and D, the value are -23.0‰ and -131‰, respectively, which may be relative to interfusion of deep material.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2005年第3期55-58,共4页
Petroleum Exploration and Development
基金
国家自然基金项目(40373001)
国家科技部"973"天然气项目(2001CB209102)
关键词
嗒里木盆地
天然气
氢同位素组成
碳同位素组成
Tarim Basin
natural gas
hydrogen isotopic composition
carbon isotopic composition
