CAJ | 학술논문

针对油藏数学模型求解效率低下的问题，研究了快速求解交联聚合物驱数学模型的方法。根据交联聚合物驱的调驱机理，建立了三维两相五组分（油、水、聚合物、交联剂和交联聚合物）的交联聚合物驱数学模型，模型的求解采用隐式压力、显式饱和度和显式浓度的求解方法。其中，压力的求解提出了计算效率更高、更稳定的Douglas差分格式，利用分步降维的思路求解。与商业化的油藏数值模拟软件CMG相比，采用Douglas差分格式并结合追赶法求解交联聚合物驱数学模型，可以大幅度提高模型的计算效率，为快速求解交联聚合物驱油藏数学模型提供了一种有效方法。
침대유장수학모형구해효솔저하적문제，연구료쾌속구해교련취합물구수학모형적방법。근거교련취합물구적조구궤리，건립료삼유량상오조분（유、수、취합물、교련제화교련취합물）적교련취합물구수학모형，모형적구해채용은식압력、현식포화도화현식농도적구해방법。기중，압력적구해제출료계산효솔경고、경은정적Douglas차분격식，이용분보강유적사로구해。여상업화적유장수치모의연건CMG상비，채용Douglas차분격식병결합추간법구해교련취합물구수학모형，가이대폭도제고모형적계산효솔，위쾌속구해교련취합물구유장수학모형제공료일충유효방법。
To solve the problem of the poor computational efficiency in solving reservoir mathematical model,we studied a fast solution. A three-dimension,two-phase(oleic,aqueous)and five-component(oil,water,polymer,cross-linked polymer, cross-linker)mathematical model was presented according to the profile control and flooding mechanism of cross-linked poly-mer flooding. Based on IMPES method,a more efficient and more stable Douglas difference scheme was proposed which uses the step-by-step reduced-order idea to solve a model. The simulation result shows that compared with commercial simulator CMG,the Douglas difference scheme in combination with chase method can greatly improve the solution efficiency,which provides an effective way to solve a reservoir mathematical model.