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为解决吐哈盆地丘陵油田陵二西区三间房组油藏注水开发中存在的油井压力低、产量低、含水上升快和水井注水压力接近油层破裂压力等一系列问题,利用动态分析方法,对该区块注水开发动态特征进行了深入分析。结果表明:该区块油井具有单井多层、单层单向受效的特点,见水呈单层单向和双层双向两种方式。见效时间与见水时间有一定的正相关关系,当见效时间太短或太长时,都可能在见效后短时间内就见水;当见效时间为8～14month时,油井见效后过较长时间才见水。游离的小气泡所产生的气阻效应不应忽视,它可能是造成目前生产中存在问题的主要因素。油田动态特征还受砂体沉积相环境、构造、射孔、砂体的展布方向及储集层物性因素的影响。图1表1参20
In order to solve a series of problems such as low oil well pressure, low yield, rapid rise of water cut and close injection pressure of oil well in the reservoir formation of Sanfangfang reservoir in Tomb of Hilly Oilfield, The dynamic characteristics of waterflood development in this area are analyzed in depth. The results show that the oil well in this block has the characteristics of single-well multi-storey and single-storey unidirectional packing. There are two ways that the water is unidirectional and double-deck. Effective time and see the water time have a certain positive correlation, when the effective time is too short or too long, may be effective after a short time to see the water; when the effective time is 8 ~ 14month, the well after a longer effect Time to see the water. The air resistance effect caused by the free small bubbles should not be neglected. It may be the main factor that causes the current production problems. The dynamic characteristics of the oilfield are also affected by the sedimentary facies environment, structure, perforation, the distribution direction of sand bodies and reservoir physical properties. Figure 1 Table 1 Reference 20