Study On Development Potentiality Of The High Water-cut Of The Longhupao Oil-fields

The west region in Daqing of north of the Song Liao basin, the geology condition is complicated and the reservoir is the structure of low porosity, low permeability, low salinity, its type majority constructs oil to hide, the rock oil hide, compound of the oil hide. The Longhupao oil-field is typical of three low oil-fields, construct position is to be located on the Song Liao basin concavity area Qijia-ancient dragon hollow west side, is Longhupao-HongGang rank ground north carry a stalk to near south north of the minor axis be the third grade to carry on the anticline structure. Layer of mine is mainly SaErTu oil layer, the blossom of grape oil layer and GaoTaiZi oil layer and take mining the SaErTu oil layer as lord. Use to contain the oil area 27.5km~2,the geology keeps to measure 1316×10~4t.The Sa and Pu oil layer of the Longhupao oil-field are mainly subjected to a northern thing source influence and Be the deposition in the Delta Front Reservoir.The Longhupao oil-field previously experienced natural energy to mine, general note water, layering to note water and encrypt adjustment etc. development stage after, the oil-field has already got into High Water-content a period a development currently, though note water adjustment and Profile Control strength through an enlargement, nature gradually decrease still quicker, for the sake of improvement the Longhupao oil-field High Water-content period develop effect, carried on system a research to that oil-field and make pure development potential. Open the exhibition fine reservoir description research, produce monitor data according to the infusion in dividing the line foundation of flow the unit, water which moves a static state to combine to judge water well gets rid of water layer and direction of the see of direction, oil well, make pure surplus oil to distribute condition and regulation and open an exhibition to lift a liquid experiment, raise to keep quantity to use degree; Pass to build up yield to gradually decrease model, unite to sign yield to reduce square distance and water to get rid of the characteristic curve square distance, study an oil-field development index sign variety regulation and estimate, Distribute a regulation research foundation in the surplus oil up, pass number emulation's etc. to synthesize a technique, the research encrypts an adjustment possibility,pass rock electricity analysis, carry out the illegitimate profit boundary that the structure oil hide and the illegitimate profit distributes regulation and keeps layer water to flood the contain of circumstance and side department well water circumstance etc. The space which considers that the SaErTu, the blossom of grape, GaoTaZi oil layer distributes a circumstance and combine solid artesian well to carry out of break layer circumstance, predict the layer growth circumstance of the cloth well keep of area, make sure the reasonable well be apart from and adopt vivid way cloth well.