特种油气藏2017，Vol.24Issue(5)：97-101,5.DOI:10.3969/j.issn.1006-6535.2017.05.017
特高含水期油田水驱特征曲线优化研究
Optimization of Characteristic Curves for Water Flooding Operations in Development of Oilfields in Stages with Extremely High Water Cut
摘要
Abstract
Once development of oilfields entered its high water cut stages,characteristic curves of water-flooding operations may deviated from the straight line and turn upward. Such deviation may eventually lead to predicted re-coverable reserves slightly higher than expected. Accordingly,semi-log permeability expression of cubic polynomial fitting shall be used to optimize characteristic curves of water-flooding operations. In this way,resulting curves may better fit actual conditions of field productions. Optimized water-flooding characteristic curves and two-section straight line techniques were used respectively to predict ultimate recoverable reserves in certain blocks of the D Oil-field. Relevant results were compared with results generated by using Arps reduction curve method. Research results show predicted recoverable reserves of the optimized water-flooding characteristic curves and two-section straight line techniques have relative errors of 0.69% and 5.83%,respectively from the results obtained by using Arps re-duction curve method. In conclusion,optimized water-flooding characteristic curves have better applicability and higher accuracy. These curves may be used to determine ultimate recoverable reserves of the oilfield in high water-cut stages easily and rapidly. Relevant research results may provide necessary guidance for modification of develop-ment programs in later development stages of relevant oilfields.关键词
水驱特征曲线/特高含水期/相渗关系/可采储量预测Key words
water-flooding characteristic curve/stages with extremely high water cut/phase permeability correla-tion/recoverable reserve prediction分类
能源科技引用本文复制引用
王继强,岳圣杰,宋瑞文,陈青松,王博..特高含水期油田水驱特征曲线优化研究[J].特种油气藏,2017,24(5):97-101,5.基金项目
国家科技重大专项"高含水油田提高采收率新技术"(三期)(2016ZX05010-003) （三期）
中国石油天然气股份有限公司专项"高/特高含水油田改善水驱效果关键技术"(2016B-1202) （2016B-1202）
