Research & Effect Analysis About Production Advancent Technology In Guantao Oil Layer Of Chengdao Oil Field

Guantao layer is the main oil-bearing serial of Chengdao oilfield, the positive effect of water flooding has been presented, the water percentage has been reduced, the reservoir energy has been supplied, the infinite acting decline has been slow down, since the moderate water injection was taken in 2000. Based on the characteristics of weak bond, sanding seriously, aeolotropism gravity, disproportion of degree of reserve recovery, multi-layer produce, the great amount of injection layers, the low qualification rate of the inject wells, the long distance between the inject wells and the producers and the great latent capacity of the liquid producing capacity of single oil well, the developed situation of similar oilfields is compared and the techniques of advancing the production of Guantao oil layer are studied, using the numerical analogue technique. According to the study the production rate maintenance and enhancement and the settlement of the main contradictory of the production of oil reservoir are present by the measures of injection-production ratio regulation, the appropriate production raised opportunity, the appropriate production raised speed.The dynamical data of the simulated area are analyzed and the reserves, pressure, water content ratio and so on are fitted to insure the dependability of the model, by the numerical simulator of the Guantao oil layer in Chengdao oilfield, which contains the real characteristic of reservoir strata, the real fluid property and the real production situation. Based on the study, the enhancement plan of the production is present and the production enhancement effects of the single well and the block are analyzed to certain the next injection plan of the Chengdao oilfield.