摘要
目前弱凝胶调驱矿场效果评价多以油井含水降低和注入井吸水剖面改善为见效特征,多为定性评价,缺少定量评价。针对弱凝胶矿场调驱效果评价方法的不足,分别从水井、油井、井组三个角度,应用注入井压力吸水指数法、注水井霍尔曲线法、注水井吸水剖面法、井组水驱特征曲线法、井组含水率与采出程度关系曲线法等几种方法对弱凝胶矿场调驱效果进行综合评价。综合评价既能定性评价弱凝胶调驱是否见效,还能定量评价改善开发效果的程度。该方法克服了单项指标片面反映弱凝胶调驱某方面调剖效果的缺点,可方便应用于弱凝胶矿场调驱效果评价。
At present, weak gel field flooding evaluation method reduced the production wells water cut and improved the injectivity profile of injection wells. Most evaluations are qualitative and lack of quantitative evaluation. Aiming at the shortages, this paper comprehensively evaluated this method respectively from three aspects of injection wells, production wells and well groups with the methods such as pressure and injectivity index, Hall plot, injeetivity profile, waterflood indicatrix and water cut and recovery degree relation. Comprehensive evaluation not only can qualitatively evaluate whether weak gel flooding is effective or not, but also can quantitatively evaluate the improvement degree of development effect. This method overcomes the shortcoming that individual index can only reflect the profile control effect of some aspect on one side and can be used for effect evaluation of weak gel field flooding.
出处
《油气藏评价与开发》
2013年第2期62-65,共4页
Petroleum Reservoir Evaluation and Development
关键词
弱凝胶
调驱
效果评价
水驱特征曲线
weak gel, flooding, effect evaluation, waterflood indicatrix
