关键词: 调剖, 解堵, 转向注水

Abstract:

Those contradictions among layer and level cause two serious phenomenon appeared. The use of two-and-three-rate reservoir bed became bad middle and later periods of water flooding development, involved the volume diminished, and the effect of adjustand drive and solve and stop up became bad year by year. Thickness that absorbed water only occupy thickness of perforation 41. 7%, contradictions among layerwere aggravate at present. So the craft of adjust and drive, solve and stop up,change direction ofwater flooding directlywere presented.It can change direction ofwater flooding among layer and leve.After adjust and cut open 39 wells and acid 24 wells, thickness that absorbed water increased 12%, the degree ofwater drove controlling improved 7%, the degree ofwaterdrives using improved 7. 5%, the average pressure ofwater flooding declined 1. 5MPa,the ability ofwater flooding increased every day. Then the oil increased 8500t, natural decrease slew down 1%, and the petroleum extraction received rate raised 1%.

Key words: adjust and drive, solve and stop up, change direction ofwater flooding