CAJ | 학술논문

在分析聚合物驱油机理的基础之上，建立了考虑吸附因子和不可入孔隙体积的聚合物驱油的五点井网模型。应用流管法将二维平面模型简化为若干个一维驱替模型，从而建立了聚合物驱油的一维数学模型。利用前缘驱替理论，通过求解每根流管中的驱替动态，然后叠加至整个五点井网，从而模拟二维平面上完整的聚合物驱油过程。将该计算过程编制成VBA程序，绘制了不同含水率条件下，聚合物驱油波及系数与流度比的关系图版，为矿场实施聚合物驱提高采收率项目时，对聚合物溶液粘度的配制提供了理论依据。将计算得到的聚合物驱油动态参数和实验结果对比，发现两者具有较好的一致性。文章建立的流管模型的优点在于输入参数较少，计算快捷，适应性强，同时克服了传统矩形网格油藏数值模拟带来的数值弥散作用，为使用聚合物驱油的油田早期筛选及油藏动态管理提供了一种有效工具。
재분석취합물구유궤리적기출지상，건립료고필흡부인자화불가입공극체적적취합물구유적오점정망모형。응용류관법장이유평면모형간화위약간개일유구체모형，종이건립료취합물구유적일유수학모형。이용전연구체이론，통과구해매근류관중적구체동태，연후첩가지정개오점정망，종이모의이유평면상완정적취합물구유과정。장해계산과정편제성VBA정서，회제료불동함수솔조건하，취합물구유파급계수여류도비적관계도판，위광장실시취합물구제고채수솔항목시，대취합물용액점도적배제제공료이론의거。장계산득도적취합물구유동태삼수화실험결과대비，발현량자구유교호적일치성。문장건립적류관모형적우점재우수입삼수교소，계산쾌첩，괄응성강，동시극복료전통구형망격유장수치모의대래적수치미산작용，위사용취합물구유적유전조기사선급유장동태관리제공료일충유효공구。
Considering the absorbing factor and inaccessible pore ,a five-spot well pattern model of polymer flooding was built on the base of polymer flooding mechanism analysis .By applying the stream tube method ,the areal two-dimensional model was simplified to several one-dimensional displacement models ,and a one-dimensional mathematical model of poly-mer flooding was established .On the basis of frontal displacement theory ,the whole process of two-dimensional polymer flooding was simulated by superimposing the displacement performance in each stream tube on the five -spot well pattern . This calculation process was compiled into the VBA software to map the relation between the sweep efficiency and mobili -ty ratios under different water cut conditions are draw ,thus providing a theoretical criteria for the polymer solution viscosi-ty preparation when performing IOR through polymer flooding .Comparison between the dynamic parameters with the ex-perimental results shows a good consistency .The advantages of the stream tube model set up in this paper are as follo-wing:less input parameters,quick calculation,well-adapting,and no dispersion effect of numerical simulation as in the traditional rectangular grid .Therefore,this method offers an effective tool for the early selection for polymer flooding and reservoir dynamic management .