摘要
根据储层孔隙结构特征、油气驱替过程、开发过程中产出水的化学-动力学响应,塔河油田奥陶系地层水可区分出洞穴底部油气驱替残留水、洞穴周缘小缝洞系统驱替残留水和储层下部层间水3种类型.根据油井开发动态和储层发育情况,奥陶系油藏油井含水动态类型可分为缓慢上升型、台阶上升型、快速上升型和波动型.针对储层特征和油藏流体化学-动力学特征,提出以下稳油控水措施,为油田生产开发提供服务:1)识别水体类型,控制出水速度;2)注水开发;3)合理加密井网;4)合理控制采油速度,延长稳产时间;5)酸化压裂;6)堵水调剖.
Three types of water were identified in this dissertation： 1） residual water in bottom of cave after oil and gas displacement; 2） residual water in fracture/pore around cave after oil and gas displacement; 3） interlayer water below reservoirs based on the characteristics of pore structure, oil-gas displacement process and chemical-dynamic response of produced water during the development of Tahe oilfield. The water cut trend curve can be divided into slowly increasing curve, stepped increasing curve, rapidly in- creasing curve and fluctuating curve according to the well performance and reservoir development. According to reservoir characteristics and hydrochemical-hydrodynamic characteristics of oil pool, the recommendation for stable production and water control were proposed to serve for production and development in Tahe oilfield as follows： 1） control the water yield efficiently by clarifying the different types of water and their chemical-dynamic characteristics; 2） develop by injecting water; 3）deploy intense wells; 4）control the output rate of single wells appropriately to extend the stable-production period; 5）employ acid fracturing; 6）plug water and control profile.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2008年第10期1843-1848,共6页
Journal of Zhejiang University：Engineering Science
基金
国家“973”重点基础研究发展规划资助项目(2005CB422107)
关键词
塔河油田
地层水赋存
碳酸盐岩油藏
控水对策
Tahe oilfield
occurrence of formation water
carbonate reservoir
measures for water control
