水驱油藏开发平衡中的稳产条件研究  

Research on Stable Production Conditions in the Development Balance of Water Drive Reservoir

作　　者：张道平[1] 常旭轩[1] 杨亚少[1] 关克明[1] ZHANG Dao-ping;CHANG Xu-xuan;YANG Ya-shao;GUAN Ke-ming(No.3 Oil Production Plant of PetroChina Changqing Oilfield Company,Yinchuan 750001,China)

机构地区：[1]中国石油长庆油田分公司第三采油厂,银川750001

出　　处：《当代化工》2021年第5期1159-1162,共4页Contemporary Chemical Industry

基　　金：国家自然科学基金(面上项目),VSP全波场反演偏移成像(项目编号:41574117)。

摘　　要：研究天然水涌入、注水与生产之间的平衡问题。通过推导平衡方程和用"平衡点"表示平衡曲线来阐述平衡原理,使用油藏现场数据特别分析了人为的可控因素(例如注入量与产量的井比和总井数)对平衡的影响。结果表明:影响主要体现在等库点位置,且随因子变化而变化。随后特别分析了油藏储层压力维持水平,以揭示含油率随含水率的升高而变化的规律。同时还发现,即使油藏压力保持恒定,含油率仍不可避免地下降。The balance between natural water influx, water injection and production was studied. The balance principle was explained by deriving the balance equation and using the "balance point" to represent the balance curve. The reservoir field data were used to specifically analyze the influence of man-made controllable factors(such as the ratio of injection volume to production wells and the total number of wells) on balance. It was found that the impact was mainly reflected in the location of the storage point and changed with the change of factors. Subsequently, the pressure maintenance level of the oil reservoir was specially analyzed to reveal the change law of oil content with the increase of water cut. It was also found that even if the reservoir pressure remained constant, the oil content inevitably decreased.

关 键 词：注水 平衡方程 油藏 储层压力 开发效率 

分 类 号：TE19[石油与天然气工程—油气勘探]