控水稳油是经多年注水开发的老油田的一项长期战略任务。目前普遍采用的化学调剖堵水方法工作量大,成本高,还会造成环境与地层的污染。投球调剖是从注水井口投入树脂小球,通过调节注水小球密度、直径和注水压力等参数,使小球能有选择性的进入封堵层的炮眼内,达到调剖的目的。该课题分为2部分:先在试验室做模拟试验, Steady flow of water control is a long-term strategic task of the old oilfield developed after years of waterflooding. At present, the commonly used methods of chemical profile control and water plugging have heavy workload and high cost, and can also cause environmental and formation pollution. Pitch profile control is to inject the resin pellets from the injection wellhead. By adjusting the density, diameter and water injection pressure of the pellets, the pellets can selectively enter the hole of the plugging layer to achieve the purpose of profile control. The subject is divided into two parts: first in the laboratory to do simulation tests,