Experimental Study Fine Layered Water Injection Technology

With high water cut oilfield of daqing oilfield recovery degree unceasing enhancement,the composite moisture content up to 85.94%, and contradictions increasingly prominent in the interlayer, layer, layer water injection technology further development is an urgent need to improve. Daqing oilfield has entered for determining development period, under the condition of the original development technique, water drive output will decline more than 1 million tons per year, will fall below 15 million tons by 2017. For ease of diminishing, put forward the implementation of the stratified water flooding, the changyuan water drive natural decline rate reduced from the current 8.5% to 7% in 2012, water flooding of changyuan composite decline rate reduced from the current 5.5% to about 3% of the 2012 development goals and requirements. Therefore, development of a new generation of subdivision water injection exploration technology is very important to to achieve the goal of sustained and stable yield.In this paper, according to the characteristics of the daqing oilfield reservoir property analysis stratified water flooding technology from several aspects. And put forward the south eastern area high platform, apricot ~ b block, apricot nine district of western areas north west,block in lamadian oilfield, Portugal a block, 291, 358-51 block zhao, the 45 and 14-38 block nine test area. Insight into the basic situation of the experimental area, according to the basic situation, put forward the corresponding problems and issues to formulate reasonable solutions to match the next smooth implementation, elaborating the layered water injection technology.