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用三维三相全组份对低渗透油田水力压裂垂直缝井的自然能量衰竭式开采过程进行了预测 ,并与不压裂的自然能量衰竭式开采过程进行了比较。结果表明 ,考察水力压裂垂直缝增产效果应从考察井的瞬时产量的变化和考察动态生产过程两个方面进行 ,水力压裂垂直缝在前期提高了井的产量 ,随着时间的推移其效果逐渐减弱至消失 ,这不仅是传统上认为的裂缝闭合造成的结果 ,而且是因为改变了渗流场造成的 ;水力压裂垂直缝提高了开采速度 ,但对采收率的影响微乎其微 ,文中利用物质平衡方法对其进行了详细分析。
The three-phase three-phase full component is used to predict the natural energy depletion mining process of fractured vertical fractured wells in low permeability oilfield and compared with the natural energy depletion mining process without fracturing. The results show that the effect of vertical fracturing in hydraulic fracturing should be investigated from two aspects: the instantaneous production of the surveyed well and the investigation of the dynamic production process. The vertical fracturing of the hydraulic fracturing increases the well production in the early stage and gradually increases with the passage of time Weakened to disappear, which is not only the result of the traditionally considered fracture closure, but also due to the change of the seepage field. The vertical fracturing of hydraulic fracturing increases the recovery rate but has little effect on the recovery rate. In this paper, Method of its detailed analysis.