西南石油大学学报（自然科学版）Issue(1)：119-127,9.DOI:10.11885/j.issn.1674-5086.2014.06.04.01
低渗透储层可动剩余油核磁共振分析
NMR Analysis of Movable Remaining Oil of Low Pemeability Reservoir
摘要
Abstract
This study analyzes oil-water saturation of reservoir and high-speed centrifugal oil-water displacement experiment by NMR respectively aiming at representative Parallel cores form sealed coring,and establishes NMR method for reservoir movable remaining oil saturation analysis through quantitatively comparing parameters,which include reservoir remaining oil saturation at present,relative quantity of produced oil,movable oil saturation and upper efficiency of oil displacement. The research shows that the best centrifugal forces to set up saturated oil bound water state and to drive oil are 2.250 MPa and 0.220 MPa respectively. For four permeability level(≥50、[10,50)、[1,10)and<1 mD)reservoir,produced oil saturation are 23.49%,16.81%,8.70%and 9.99%respectively;movable oil saturation are 50.34%,43.76%,29.67%and 22.89%respec-tively,and movable remaining oil saturation are 26.85%,26.95%,20.97%and 12.90%respectively. Produced oil saturation of reservoir above 10 mD is higher than that of reservoir less 10 mD,which is obviously due to reservoir heterogeneity,but movable remaining oil saturation of reservoir greater than 10 mD is higher because of its higher movable oil saturation. Movable remaining oil saturation of reservoir less than 1 mD is lower than that of other reservoirs evidently.关键词
低渗透储层/高速离心/核磁共振/可动剩余油/非均质性Key words
low pemeability reservoir/high speed centrifugation/NMR/movable remaining oil/heterogeneity分类
能源科技引用本文复制引用
李海波,郭和坤,周尚文,孟智强,王学武..低渗透储层可动剩余油核磁共振分析[J].西南石油大学学报（自然科学版）,2016,(1):119-127,9.基金项目
国家科技重大专项（2011ZX05013006）。 （）
