西南石油大学学报（自然科学版）2016，Vol.38Issue(6)：138-146,9.DOI:10.11885/j.issn.16745086.2014.08.07.02
AS油田WY区特低渗透油藏水淹层评价方法
Method for Water-Flooded Layer Evaluation in Extra-Low Permeability Reservoir in WY Block of AS Oilfield Flooded by Fresh-Water
惠钢 1王友净 1闫林辉 1李佳鸿 1刘丽1
作者信息
- 1. 中国石油勘探开发研究院，北京 海淀 100083
- 折叠
摘要
Abstract
The formation water is of extremely high salinity in the extra-low permeability reservoir in WY Block of AS Oil-field. After the long term water-flooding, the oil layer resistivity curves display an asymmetric U-Type and the resistivity of severely water-flooded oil layer exceeds that of original oil layer. The traditional logging evaluation approach for medium-high permeability reservoir does not apply to extra-low permeability reservoir, owing to the complicated factors of water flooding in the extra-low permeability reservoir and reservoir characteristics. The rock-electric experiment is carried out under the sim-ulated reservoir conditions to indicate the logging mechanism of water flooding in the extra-low permeability reservoir. The resistivity value of water-flooded oil layer depends on the resistivity ratio between injection water and formation water. On the basis of logging data and core analysis, formation water salinity and SP, RT, AC logging data, the water-flooded oil layer can be identified and the mixed formation water resistivity can be obtained. The logging interpretation model is finally built up for the water-flooded layer and matches well with the actual production data.关键词
岩电实验/特低渗透/水淹层识别/解释模型/符合率Key words
rock-electric experiment/extra-low permeability/water-flooded layer identification/logging interpretation model/coincidence rate分类
能源科技引用本文复制引用
惠钢,王友净,闫林辉,李佳鸿,刘丽..AS油田WY区特低渗透油藏水淹层评价方法[J].西南石油大学学报（自然科学版）,2016,38(6):138-146,9.
