低速非达西渗流储层产能评价

Productivity evaluation of low speed non-Darcy seepage flow

在低渗透油藏低速非达西渗流模型的基础上,应用具有启动压力影响的不稳定产能评价方法,实现了将地层参数代入相关方程计算产量随时间的变化规律及不稳定IPR曲线,对于工业油层预测了生产时间为180天时油井的极限产量(流压为0.101MPa时的产量),对这类井的开发投产具有重要的指导意义。

Based on the model of low speed non-Darcy seepage flow in low permeability reservoir,the evaluation method for transient productivity when considering starting pressure effect is studied. Substituting formation parameters into relative equations, the change pattern of production with time has been calculated, and the IPR curve has been obtained. For the industrial formation, the limit production flowing pressure 0.101 MPa) of oil wells has been predicted when producing time is 180 days, which is very ( significant for the guidance of the wells' putting on production, and production with stabilized rate and pressure.