The Technology Research To Adjust The Relation Of Injection-production And Exploit The Remained Oil In The Transfer District Of Daqing Oil-field

In the transfer district of Daqing oil-field，the oil layers develop from several rivers anddeltas sediment chiefly,and its thickness is different,its plane distribution isn’t even and itsphysical character is very great difference. Along with the oil-field falled into the period ofextra-high water cut,three main conflicts are outstanding day by day,which are forming thephenomena that the water goes onrush along the high permeability oil-layer obviously, theconflicts between the well or the oil-layer become more seriously;The remained oil whichdistributed in different strata and oil-layer become more scattered,the oil exploitation becomemore difficult,which is the main factor that restricts the oil-field continuable development.Soresolved the problem becomes more important. By practice inspection, although a great dealof research is done about the remained oil distribution,it is one of the main difficulty todevelop the technology to exploit the remained oil in the phase of using inject water.This topic mainly studies the characteristics of the remained oil in the the transferdistrict of Daqing oil-field，the distribution of the remained oil,and the beneficial zone of theremained oil.At the same time, analyze the main problem in the exploitation of differentzone,for developing the technology to exploit the remained oil in different zone.In this topic we take the opportunity of every parameter changing, according todynamic variety characteristics,to find out homologous regulation,then we carry out suitablemethod to resolve the problem. We make use of the change of inject pressure to find out thehigh-permeability layer and the well that the conflict between the layer is very prominent,thenadopt homologous means to resolve it; We utilize the change characteristics of oil-well andwater-well during they were closed,find out the differentia with the other region,then estimatethe potential of the remained oil; We utilize the opportunity of the inject-polymer well in useand the inject-water well to jam the portion oil-layer,then judge the superseded oil-layer andbegin to develop it in time, achieve the oil output reposeful.Therefore during the period of extra-high water cut in sandstone oil-field, according todynamic variety characteristics and the rich zone of remained oil,we manage the conflicts thatappear during the oil-field development.at the inject-water exploitive phase, enhance oil rateat the biggest limit and thus carry out oil-field to efficiently develop and keep on adevelopment.