蒸汽驱中最佳注汽强度分析与研究  

Analysis and Research on the Optimum Steam Injection Intensity in the Steam Drive

作　　者：赵红雨[1] Zhao Hongyu(Sinopec Shengli Oilfield Company, Dongying, Shandong Province 257015, China)

机构地区：[1]中国石油化工股份有限公司胜利油田分公司,山东东营257015

出　　处：《当代石油石化》2016年第11期16-19,共4页Petroleum & Petrochemical Today

摘　　要：注汽强度是影响蒸汽驱采收率和经济效益的重要参数之一。针对蒸汽驱中最佳注汽强度的影响因素及整个蒸汽驱过程中其是否需要变化的问题,采用数值模拟方法进行了研究和解答。研究表明,蒸汽驱中最佳注汽强度就是平衡含水上升速度和热损失率之间矛盾的最优值。有效厚度、原油黏度和渗透率是影响最佳注汽强度的3个最主要因素。同时,不同的蒸汽驱阶段应采用不同的注汽强度,蒸汽驱初期应保持最佳注汽强度,后期可以通过降低注汽强度的方法提高经济效益。胜利油田P区块和G区块的开发实例印证了研究结果的正确性,该项研究结果对蒸汽驱的设计具有重要的指导作用。The steam injection intensity is one of the important parameters influencing the recovery and economic benefit of the steam drive. The numerical simulation method is used to analyze the influencing factors of the optimum steam injection intensity and answer whether to be changed in the whole steam drive. The research shows that the optimum intensity is the balance between the water cut rising rate and the heat loss. Effective thickness, oil viscosity and permeability is the three most important influence factors. At the same time, different steam flooding stage should adopt different steam injection intensity, early stage should maintain the optimum intensity, later stage can reduce it to improve economic benefit. Steam drive in the P block and G block in Shengli Oilfield proves that the research results are correct. The research results have an important guiding role in the design of steam drive.

关 键 词：注汽强度 蒸汽驱 热损失 数值模拟 

分 类 号：TE357.7[石油与天然气工程—油气田开发工程]