断溶体油藏是碳酸盐岩缝洞型油气藏开发的新对象,通过对开发现象与注水机理的深入研究,针对塔河油田开发中常见的3种典型的注水波及效率低的问题：井储关系匹配差、常规注水形成类水锥、多个缝洞组合结构,提出了一种更能适应缝洞体井储关系、不同展布形态和复杂内部结构的仿底水注水方法,以此来提高注水波及率,这相较于常规注水替油,注水有效率从60 %上升至75 %。针对井眼与缝洞体之间3种常见的注水动用通道差的开发问题：井眼与缝洞体存在偏移、井眼与缝洞体没有建立有效动用通道、井控缝洞体采出程度高而远井有未动用缝洞体,提出了一种更加全面的建立缝网动用体系的低成本仿压裂注水方法,有效扩大了井控动用储量,平均单井产能增油幅度为11 t/d。通过仿底水与仿压裂注水方法应用实践显示：提高注水总量和注水压力,断溶体油藏注水有效率大幅提升,注水增产效果得到明显改善。

Fault-karst carbonate reservoir is a new object for oil and gas exploration in carbonate fractured-vuggy reservoirs. Based on the further study of development dynamics and water flooding mechanism, and in order to solve three typical problems in the development of Tahe oilfield, which are the poor matching of well storage relation, the water-like coning formed by conventional water injection, and the combination of multiple fractures and caves, an injection method by imitating bottom-water is proposed, which is more suitable for the well-reservoir relation, different distribution patterns and complex internal structure of the fracture and vug. In this way, the water flooding sweep rate is increased, and efficiency of water injected increased from 60% of conventional water flooding to 75% of simulated bottom water flooding. Three problems of poor water injection channel between borehole and fracture-vug are common, that is, there is an offset between the fracture and vug, no effective channels are established for the borehole and fracture-vug, and the reserve recovery degree of well-controlled fracture-vug is high but the untapped fracture-vug exist in far wells. A low-cost water injection method by imitating fracturing for establishing effectively fracture network producing system is proposed, which can effectively expand well controlled producing reserves, and the average productivity per well increase by 22 t/d. Practices show that these two technologies can increase the total water injection volume and water injection pressure, make the water injection efficiency improved greatly, so as to improve the effect of water injection and stimulation obviously.