低渗透油藏压裂增产规律的数值模拟研究

Numerical simulation study on fracturing for stimulation in permeability reservoir

针对低渗透油田开采难度大的原因,本文利用数值模拟手段,分别对双直井、双水平井两种不同的井型进行低渗透油藏压裂的模拟,通过对产能影响因素:半缝长、导流能力的分析得出:对双直井在进行压裂时应优先考虑增加裂缝的导流能力,双水平井进行压裂时增加半缝长和裂缝导流能力对累产油量结果影响不大。

Numerical simulation were used in double vertical wells,double horizontal wells for low permeability reservoir fracturing with respect to difficulties in low permeability oilfield development. It concludes that it should improve the fracture conductivity during fracturing on double vertical wells by analysis on influential factors including half fracture length,diversion capability,while the cumulative oil production has little change when increasing half-fracture length,fracture conductivity.