摘要
中东叙利亚A油田J组是世界罕见的低阻灰岩油藏,其油层电阻率仅为0.5～5.0Ω.m,束缚水饱和度高达70%以上.研究了低阻油层高束缚水饱和度的成因,以及高束缚水饱和度对油层电阻率的影响.电阻率数值模拟结果表明,地层电阻率随着束缚水饱和度的增高而降低,与实测曲线非常吻合.说明高束缚水饱和度是导致A油田J组形成低阻油层的主要因素之一.
The J formation in A oilfield of Syria is a rare low-resistance limestone reservoir in the world,the resistance of the oil reservoir is only 0. 5 ～ 5. 0 Ω. m,and its irreducible water saturation is higher than 70% . The origin of forming high irreducible water saturation in low-resistance limestone reservoir and the influence of the high irreducible water saturation on reservoir resistance are studied by numerical simulation of resistance. The results show that the reservoir resistance decreases with the increase of irreducible water saturation,which is consistent with the measured curves. This shows that the high irreducible water saturation is one of the main causes forming to the low-resistance limestone reservoir.
出处
《西安石油大学学报（自然科学版）》
CAS
北大核心
2013年第2期40-45,4,共6页
Journal of Xi’an Shiyou University（Natural Science Edition）
基金
国家重大专项(编号:2011ZX05031-002-002)部分成果
关键词
叙利亚A油田
灰岩储层
低阻成因
束缚水饱和度
孔隙结构
水膜厚度
数值模拟
A oilfield of Syria
limestone reservoir
origin of low resistance
irreducible water saturation
pore structure
water-film thickness
numerical simulation
