Reforming to water sensitive reservoir, oil or alcoholic base fracturing fluid is only used generally.
对水敏性储层进行压裂改造，一般只能使用油基或醇基压裂液。
2
A mixed-fluid reservoir will stratify according to fluid density, with gas at the top, oil in the middle, and water below.
具有混合流体的储层将会依流体密度分层，气在顶部，油在中部，而水在底部。
3
The development effectiveness of water flooding for the heavy oilreservoir with edge water is poor because of the high oil viscosity, high mobility ratio and the invasion of edge water.