Based on the characteristics of injection-production units in fractured-vuggy carbonate reservoirs, nine groups of experiments were designed and performed to analyze the interference characteristics and their influencing factors during water flooding. Based on percolation theory, an inversion model for simulating waterflooding interferences was proposed to study the influence laws of different factors on interference characteristics. The results show that well spacing, permeability ratio, cave size, and cave location all affect the interference characteristics of water flooding. When the cave is located in high permeability fractures, or in the small well spacing direction, or close to the producer in an injection-production unit, the effects of water flooding are much better. When the large cave is located in the high-permeability or small well spacing direction, the well in the direction with lower permeability or smaller well spacing will see water breakthrough earlier. When the cave is in the higher permeability direction and the reserves between the water injector and producer differ greatly, the conductivity differences in different injection-production directions are favorable for water flooding. When the injection-production well pattern is constructed or recombined, it's better to make the reserves of caves in different injection-production directions proportional to permeability, and inversely proportional to the well spacing. The well close to the cave should be a producer, and the well far from the cave should be an injector. Different ratios of cave reserves to fracture reserves correspond to different optimal well spacings and optimal permeability ratios. Moreover, both optimal well spacing and optimal permeability ratio increase as the ratio of cave reserves to fracture reserves increases.

根据裂缝型碳酸盐岩储层注采单元特征，设计并进行了9组实验，分析了注水过程中的干扰特征及其影响因素。基于渗流理论，提出了一种模拟注水干扰的反演模型，研究了不同因素对干扰特征的影响规律。结果表明，井距，渗透率，溶洞大小和溶洞位置均影响水驱的干扰特征。当该洞穴位于高渗透性裂缝中，或沿小井距方向，或靠近注入生产单元中的生产井时，注水效果要好得多。当大溶洞位于高渗透率或小井距方向时，低渗透率或小井距方向的井将较早地突破水。当溶洞处于较高渗透率方向，注水井与采油井之间的储量相差很大时，不同注水生产方向的电导率差异有利于注水。构造或重组注采井井网时，最好使不同注采井方向的洞穴储量与渗透率成正比，与井距成反比。靠近洞穴的井应为生产井，远离洞穴的井应为注入井。洞穴储量与裂缝储量的不同比率对应于不同的最佳井距和最佳渗透率。而且，最佳的井距和最佳的渗透率都随溶洞储量与裂缝储量之比的增加而增加。