| According to the geological characteristics of merchant oilfield,this paper,the application of the combined water flooding,polymer flooding,according to the geological research and dynamic analysis to improve water flooding,polymer flooding layer fracturing Wells picked standard,analyse the effect of different fracturing measures to different conditions,the research explore the relevant theoretical method in fracturing well chosen.This study presents the measures effect and the expression of well test parameters,and puts forward the measures of selecting well evaluation method and combining the two measures can be measured the standards of selecting well;According to different sand body sedimentary type,the standard and thickness standard of the method are determined.Polymer flooding reservoir reasonable measures timing is effective and low water cut period,the early well testing curve is characterized by semilog stream in the period lengthen,radial flow straight line segments to shorten,even disappear;This study gives the correlation expression between the effect of the fracturing method and the test well parameters.Polymer flooding reservoir is measures to reform the principles of selecting well,optimizing low permeability flow,pollution and low efficiency Wells and well testing curve is characterized by double logarithmic derivative curve hump,semilog stream long,straight slope,the "plant" word;Polymer flooding reservoir measures to transform to choose well layer standard is: to improve injection-production system type,for decreasing is induced on daily fluid production output type,the type of enrichment of remaining oil is relative,pushed by polymer system for uniform and oil layer use condition is disequilibrium model. |
