摘要
根据威远震旦系气藏天然气组成、同位素特征、储层包裹体的对比研究 ,我们认为该气藏的天然气主要来源于下寒武统筇竹寺组泥岩 ,其天然气主要是干酪根裂解气 ,次为油的裂解气。威远震旦系气藏是喜山期形成的 ,威远的天然气无论是干酪根裂解气还是油裂解气都由北面古构造聚集的干酪根裂解气和油裂解气转移而来 。
As viewed from the composition, carbon isotope and reservoir inclusion data of natural gases in the Weiyuan area, the source rock of natural gases is the Lower Cambrian black shale. Natural gases are derived from cracking of oil and kerogen, but the latter is more important. Natural gases, whether primary cracking of kerogen or secondary cracking of oil, come from kerogen\| and oil\|cracking gas of older structures north of the Weiyuan area. Big\| and medium\|sized gas fields were developed in the Weiyuan area because the formation of the Weiyuan structure and disappearance of older structures are almost contemporaneous.\;
出处
《地质地球化学》
CAS
CSCD
北大核心
2000年第1期78-82,共5页
Geology-Geochemistry
基金
"九五"国家科技攻关项目!项目编号 :96-110 -02-03-04
关键词
干酪根型解气
天然气组成
天然气
油气运聚
cracking and kerogen\|cracking gases
natural gas composition
nonhydrocarbon composition
carbon isotope
