研究了带形地层中水平井方位对产能和采收率的影响.产能方面,在对比分析齐成伟导出的带形地层中横向和纵向双分支水平井拟三维产能公式的差异后,提出了“纵横阻力比”的概念,研究表明带形地层中纵向水平井的产能远大于横向水平井；采收率方面,在水平井激发的三维渗流场可近似为等长裂缝激发的二维渗流场的情况下,根据齐成伟导出的带形地层中横向和纵向双裂缝复势公式绘制了流网图,流网图显示带形地层中纵向水平井的采收率远小于横向水平井.%This paper meticulously studies productivity and recovery factor in banded formation from a new perspective, the orientation. The concept of "aspect ratio of seepage resistance" is proposed after analyzing pseudo 3D productivity formulae of transverse horizontal well and longitudinal bilateral horizontal wells derived by Qi Chengwei. The study shows that the productivity of longitudinal horizontal well is much higher than that of transverse horizontal well; while the flow net diagram constructed according to the complex potential formulae of transverse and longitudinal bilateral fractures derived by Qi Chengwei under the condition that a 3D seepage field excited by horizontal wells is approximate to a 2D seepage field excited by fractures with length equal to horizontal wells indicates that the recovery factor of longitudinal horizontal well is much less than that of transverse horizontal well in banded formation.
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