摘要
从北卡那封盆地和波拿巴盆地构造演化、沉积演化、烃源岩、储盖组合、圈闭条件、成藏过程和保存条件等方面的差异分析入手,经过综合评价得出,澳大利亚西北陆架具有大型气田形成的条件,即充足的气源、良好的储层、有效的盖层、有利的成藏条件配置和晚期成藏。同时通过对比也发现,2个盆地成藏条件仍具有一定的差异,北卡那封盆地发育了2套重要的烃源岩,多套的成藏组合,后期构造活动弱,保存条件优越,勘探前景巨大。
The difference on the tectonic evolution,sedimentary evolution,source rocks,source-reservoir-cap assemblage,trap conditions,reservoir-forming process and its preservation conditions in the North Carnarvon and Bonaparte Basins were analyzed,a comprehensive evaluation was performed.The result shows that the northwest shelf of Australia has the conditions to form giant gasfields,including abundant gas resource,good reservoir,effective cap rock,beneficial reservoir forming condition and configuration as well as late accumulation.At the same time,it is found out that there exists difference between the two basins,in North Carnarvon Basin,2sets of major source rocks and many reservoir forming assemblages are developed,where tectonic activities are weak,preservation conditions are favorable,it has the greater exploration potential at the late stage.
出处
《石油天然气学报》
CAS
CSCD
2014年第2期6-11,4,共6页
Journal of Oil and Gas Technology
基金
国家科技重大专项(2011ZX05030-002)
关键词
大气田
形成条件
波拿巴盆地
北卡那封盆地
giant gasfield
comparison of reservoir forming condition
Bonaparte Basin
North Carnarvon Basin
