坨142断块含水上升分析及治理对策

目前坨142断块的综合含水已达74％，采油速度为3．19％，进入了采油速度高、含水上升较快的开发阶段。通过分析认为，导致坨142断块含水上升加快的主要因素包括层间差异、构造高差等静态因素以及平面压力不均衡、地层压力低、采液强度大等动态因素。针对影响含水上升速度的因素，主要采取了提高注采比恢复地层能量和不稳定注水以及堵水调剖等方式减缓断块含水上升速度的对策措施，并取得了一定的效果。

Analysis and Government Countermeasure on Water Cut Rise of Tuo142 Block

At present,the water cut of Tuo142 block has reached 74%,the rate of oil production is 3.19%.The rate of oil production is high and water cut rises a quicker phase of exploitation.This article analyses water cut and influence factor in view of the T142 block and thought that causes this block to water cut primary factor which includes strong heterogeneity,structure high inferior state factor as well as plane pressure unbalance,low formation pressure,big fluid production intension and so on.Some measures can be taken to reduce the rising water cut and restore formation pressure in the light of the influence factor of water cut rise which has abtained a good effect in some degress.