Study on Production Mechanism of Stopping Injection and Pressure Relief and Utility Evaluation in Reservoir Shugu 1
单位
(辽河油田分公司曙光采油厂, 辽宁盘锦124010 )
Organization
Shuguang O il Product ion P lant, Liaohe O ilf ield Company, CNPC, Panjin 124010, China
摘要
碳酸盐岩潜山油藏储层孔隙主要为裂缝和溶洞, 其中溶洞是主要的储集空间, 裂
缝是主要的渗流通道。为了控制曙古1油藏含水上升, 通过降低注采比, 降低地层压力, 充分
利用底水能量驱油, 在基质孔隙和缝洞系统之间建立起有效压差, 动用基质孔隙和微小裂缝中
大量剩余油, 从而改善了油藏开发效果。
Abstract
The reservo ir po res of carbonate buried-h ill rese rvo ir are m ostly fractures and cave rns. The caverns are the pr im ary reservo ir space and the fractures are the prim ary seepag e channe .l In order to contro l the r ising o f w ate r cut o f Reservo ir Shugu 1, the deve lopm ent effec ts have been im proved by reducing the form a tion pressure, m aking fu ll use o f bottom w ater flooding energy, establish ing an e ffectiv e pressure d iffe rentia l between m atr ix po res and crev ices sy stem and produc ing a large num ber o f rem aining o il in m atr ix po res and m icrofractures.
关键词：
碳酸盐岩油藏;
采收率;
底水锥进;
机理;
Keywords:
Carbona te rese rvo ir, Recovery efficiency, Bottom wa ter con ing, M echanism;
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