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出 处:《油气地质与采收率》2004年第5期57-59,共3页Petroleum Geology and Recovery Efficiency
摘 要:碳酸盐岩缝洞型油藏具有多重孔隙特征,非均质性强的缝洞系统决定了复杂的油水运动特点,直接影响了油田的开发水平。通过分析塔河油田碳酸盐岩储集体物性特征、油藏流体特征和岩溶洞穴分布规律,将储集体划分为古近地表岩溶储集带和古岩溶水道储集带。结合塔河油田的生产实际,总结了塔河碳酸盐岩油田产量、含水率和地层能量的变化规律。研究了古近地表岩溶储集带和古岩溶水道储集带的开发井网分布特点和井距,论述了注水开发的可能性与合理的单井产量和采油速度。<abstract>lti-pore characteristic appears in carbonate fracture-cave reservoirs. The fracture-cave system with strong heterogeneity determined complex oil-water movement and affected the field development level. By analyzing the physical properties of reservoir bodies, reservoir fluid features and karst-cave distribution rule in Tahe carbonate oilfield, the reservoir bodies were classified to ancient near-surface karst reservoir belts and ancient karst channel reservoir belts. Combined with the field practice in Tahe oilfields, the change rule of oil production and water cut and formation energy in Tahe carbonate oilfield was summarized. The distribution features and well spacing of well pattern of the ancient near - surface karst reservoir belts and ancient karst channel reservoir belts were studied. The possibility of waterflooding development, rational single well production rate and oil recovery rate were discussed.
关 键 词:塔河油田 碳酸盐岩油藏 油藏流体 油田产量 储集体 采油速度 单井产量 古岩溶 近地表 缝洞系统
分 类 号:TE357[石油与天然气工程—油气田开发工程] P618[天文地球—矿床学]
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