Z油田大斜度压裂井产能数值模拟研究

Numerical Simulation of Large Slope Fracturing Well Productivity in Z Oilfield

针对Z油田具有代表性的7口大斜度压裂井建立了单井砂岩模型、孔隙度模型、渗透率模型,形成了Z油田天然裂缝发育储层大斜度压裂井产能数值模拟方法,数值模拟给出了不同层段(S1段、S3段和D2段、D3段)、不同井斜角(60°、75°)、不同裂缝参数和生产压差条件下大斜度压裂井产能模拟结果。通过探井试油资料与数值模拟预测结果对比分析可知,该数值模拟方法的计算结果与实际试油结果吻合,从而为Z油田大斜度压裂井产能预测分析提供了科学依据。

Single well sandstone model,porosity model and permeability model are established for the representative 7 large slope fracturing wells in Z oilfield,and the numerical simulation method for productivity of large slope fracturing well in natural fracture development reservoir of Z oilfield is formed.The numerical simulation results of different layers(S1,S3,D2,D3),different well slope angles(60 degrees,75 degrees),different fracture parameters and production pressure difference are obtained.Through the comparison with testing data getting from exploration wells,it shows that the calculation results of numerical simulation are consistent with practical testing results,which provide a scientific basis for the prediction and analysis of large slope fracturing wells productivity in Z oilfield.