海相油气地质Issue(3)：43-50,8.DOI:10.3969/j.issn.1672-9854.2014.03.006
阿拉斯加北坡盆地海域油气地质及勘探潜力
Petroleum Geology and Exploration Potential in Offshore Arctic Slope Basin, Alaska
摘要
Abstract
Alaska Arctic Slope Basin is partly located in land of Alaska and partly in seas. It is shown that the basin has experienced four stages of tectonic evolutions, which are the pre-middle Devonian Ellesmere orogeny, the late Devonian to Triassic passive margin, the Jurassic to early Cretaceous rifting and the middle-late Cretaceous to Quaternary foreland, respectively. A good source-reservoir-cap assemblage develops in offshore area. The Triassic Shublik source rock is the major source rock. The lower Cretaceous Kuparuk neritic and deltaic sandstone is the main target reservoir and the upper Cretaceous Torok deltaic sandstone is the secondary target reservoir. The lower Cretaceous mudstone with good seal condition is regarded as the regional cap rock. A large number of traps formed during the tectonic evolutions, predominantly including large-scaled low-rising anticlinal traps and structural/stratigraphic combined traps, and developing several plays. Based on comprehensive analysis, it is shown that there are excellent geological conditions for hydrocarbon accumulation and enormous undiscovered hydrocarbon resources in the offshore area. The compressional structural belt in the foreland, Chukchi coast and Barrow Arch should be the favorable area of exploration.关键词
阿拉斯加/北坡盆地/海洋勘探/烃源岩/油气地质条件/油气成藏/勘探潜力Key words
Arctic Slope Basin/Source rock/Petroleum geology condition/Hydrocarbon accumulation/Offshore exploration/Exploration potential/Alaska分类
能源科技引用本文复制引用
张鑫..阿拉斯加北坡盆地海域油气地质及勘探潜力[J].海相油气地质,2014,(3):43-50,8.基金项目
本文受中海石油（中国）有限公司重点科技攻关项目“美洲区块勘探及战略选区研究”(编号2012-HW-12)资助 （编号2012-HW-12）
