Daqing Oilfield Well Spacing High Concentration Polymer Flooding Recovery Law

The main content of the thesis is the Daqing Oilfield Development Zone Sa in theSouthern District of West East block mining purpose layer Portuguese I1-4.250m five-pointmethod of area well network, from east to west in2002, are being implemented to drillinginto production, all put into the blank water flooding to be completed by the end of2004,Daqing Oilfield Limited Liability Company in accordance with the spirit of the thematicsessions of China National Petroleum Corporation, in order to maximize improve oil recovery,the injector spacing beginning in2007narrowed down to the major reservoirs250m125m,the deployment of new wells in the row between its wells, which in January2009, theSouthern District of West East block plans to take the overall high concentration polymerflooding design method, the block is a high concentration polymer flooding industrializationblock directly after a-class reservoirs blank water drive, and is the first time in the oilfield125m Well Spacing development before this no class reservoir125m well spacing minedunderstanding of the law to guide the oilfield development, the growing demand for energy asthe country and the people, the needs of the oil production increases, the follow-up of slimdrive block will be gradually put into operation from the high concentration, therefore,urgently to clear of such blocks high concentration polymer flooding mining law, are betterable to guide subsequent block more reasonable development. The structural characteristics ofthe block polymer injection reservoir development status and sedimentary characteristics andthe test chamber, the preparation of the completion of the development program Pu â…  mainreservoir of polymer flooding, and to develop injection taken during the polymer injectionsupporting adjustment measures analysis adjusted effect, worked out a set of injection for theblock end fine adjustment of tapping the potential of technology to improve the developmenteffectiveness and ultimate recovery factor, and at the same time, to provide experience forother polymer injection block development.