石油资源地区分布有怎样的规律?

2025年04月07日 06:36
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世界石油资源在地区分布上的总的特点是相对集中。

首先,全世界共有600多个沉积盆地,已发现油、气田的只占1/4,其中37个盆地就集中了全世界较可靠的石油远景储量(1500亿吨)的95%,仅阿拉伯—波斯湾盆地即达710亿吨之多;其它还有6个石油储量在40亿~60亿吨的大盆地,它们是:委内瑞拉的马拉开波(57亿吨),俄罗斯的伏尔加—乌拉尔(54亿吨)、西西伯利亚(50亿吨),墨西哥的雷费马—坎佩切(50亿吨),美国的佩米安(42亿吨),利比亚的锡尔特(42亿吨)。

世界石油资源分布图

其次,以全世界已发现的约3万个油田说,其中仅37个储量在6.7亿吨以上巨型油田,合计储量即占世界总储量的51%;储量为0.67亿~6.7亿吨的260个大型油田,合计储量占世界总储量的29%,储量为670万~6700万吨的700个中型油田,合计储量占世界总储量的15%,而其余2.9万个小油田合计仅占世界总储量的5%。

再次,以世界160多个国家论,储油国约有60多个,1982年初探明储量在10亿吨以上的只有16个,它们合计占世界总储量的92%,仅沙特阿拉伯一国即独占1/4,以下依次为墨西哥、科威特、俄罗斯、伊朗、阿联酋、美国、伊拉克、利比亚、委内瑞拉、中国、尼日利亚、英国、印度尼西亚、阿尔及利亚和挪威。

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