Fine Potential Tapping Method Of Water Drive In Sazhong Development Zone

In Sazhong development area after50years of development, has entered ultra-highwater cut stage of development, the plane of high water film distribution, vertically onrushhigh water-flooded layer, inefficient, ineffective water circulation in severe. Water injection,fluid production growth rate too fast, rapid water cut increase, the natural decline rate is high,cause oil field to develop benefit variation. From the injection water use rate perspective,various types of reservoir producing disequilibrium, development good thick oil reservoirproducing thickness ratio as high as90.3%, thin and poor reservoir producing thickness ratioof only54.2%, which is part of the use of a low degree of thin and poor reservoir perforatedlayer occupies whole area82.5%, perforation thickness accounted for63%, who are the mainwater flooding mining object.So through the subdivision water injection, deep, shallow profile modification finepotential tapping means, effective control of high permeability layer of absorbent, increase inthin and poor reservoir water, reasonable adjust the water injection profile, improve the usingrate of injecting water, control water cut increase speed, reduce natural decline rate.Currently has initially formed a set of practical technology and method, obtained betterdevelopment effect. Subdivision water injection, deep, shallow profile modification is inextra high water cut period of water flooding development adjustment measures for tappingpotential and effective, but also for the whole of water flooding development adjustment canprovide practical basis.