岩性油气藏 ›› 2011, Vol. 23 ›› Issue (4): 2532.doi: 10.3969/j.issn.1673-8926.2011.04.005
林森虎,邹才能,袁选俊,杨智
LIN Senhu, ZOU Caineng, YUAN Xuanjun, YANG Zhi
摘要:
美国页岩气勘探开发目前已进入快速发展阶段,同时也带动了页岩地层内致密油的开发。文中所 指的致密油,是指以吸附或游离状态赋存于渗透率极低的暗色页岩、泥质粉砂岩和砂岩夹层系统中的自 生自储、连续分布的石油聚集。目前,美国致密油的开发集中在Bakken,Eagle Ford 和Barnett 页岩区带 内。其中Bakken 致密油资源量为230×108 t,可采资源量为5.9×108 t,待发现资源量为3.7×108 t 油及相近 数量的伴生气,2000 年至今累计产油约2 800×104 t;Eagle Ford 致密油赋存于区带北部,年产油约20×104 t;Barnett 待发现石油平均资源量为1 400×104 t,待发现致密油资源量为480×104 t,其北区主要产油、 南区主要产气,目前拥有8 000 余口生产井,截至2009 年底,“致密油带”累计产油量达770×104 t。我国 广泛发育富有机质页岩,致密油的勘探潜力较大。
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