The essay is based on the character of the reservoir of east
tract in Jilin Oilfield、the long term injecting-well development ,
and the data from 2002 inject-well that have been adjusted the
sopping profile , analyzed the data from the 18 wells , The profit
was put in the first place ,soaring expand plugging agent was used
to block the fore-macropore as the agent reach the reservoir ,the
effect of the wells that have been injected soaring expend-agent
became significant when the curve of the afflux pressure reach the
corner-stone point ,The average of the enhanced oil of the kind of
well ,whose pressure curve met its critical points 180. 9 tons per
well ,the other wells of that is 20. 2 tons per well . according to
the curve of pressure ,we know the situation of blocking the
fissure and macropore , the optimized time of injecting profile
control agent and the effectiveness. So it is necessary for the
reservoir that is low permeability and prosperous fissure when we
use the soaring expand plugging agent during the stage by stage
adjust the sopping profile to establish the corner-stone point
pressure.
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