CAJ | 학술논문

针对低渗透油田具有非均质以及流体流动启动压力梯度的特点，基于椭圆流理论给出了具有启动压力梯度的非均质油藏压裂井产能计算方法，利用该方法可以定量评价平面非均质性质以及启动压力梯度对压裂井产能的影响。研究表明，启动压力梯度越大、非均质性越强，压裂井产能越低。基于产能计算方程，得到了平面非均质低渗油藏压裂井的有效动用半径，为低渗油藏压裂井的生产以及相关研究工作提供了重要借鉴。
침대저삼투유전구유비균질이급류체류동계동압력제도적특점，기우타원류이론급출료구유계동압력제도적비균질유장압렬정산능계산방법，이용해방법가이정량평개평면비균질성질이급계동압력제도대압렬정산능적영향。연구표명，계동압력제도월대、비균질성월강，압렬정산능월저。기우산능계산방정，득도료평면비균질저삼유장압렬정적유효동용반경，위저삼유장압렬정적생산이급상관연구공작제공료중요차감。
According to the features of threshold pressure gradient and anisotropy of low - permeability oilfields, a pro- ductivity calculation method of fractured well is proposed by using the elliptic flow theory. The effect of the heterogeneity and threshold pressure gradient on the productivity was quantitatively evaluated by this method. The study results show that the greater the threshold pressure gradient and heterogeneity are, the lower the productivity of the fractured well is. Based on this formula,a method for calculating the effective drainage radius is obtained to provide important references for the production of fractured wells and related research work.