研究表明,渗透率真各向异性对水平井产能影响很大。表皮因子的增大产能明显减少。通过推导出水平井采油指数计算公式,对此项指标进行了深入研究。同时,针对目前对水平井生产时井筒内流体流动研究的现状不足,推导出混合降压计算公式,对评价产能也提供了理论依据。 The research shows that the true anisotropy of permeability has great influence on horizontal well productivity. Increased production of epidermal factor significantly reduced. By deriving the calculation formula of horizontal well oil production index, this index has been deeply studied. At the same time, in view of the current shortage of research on fluid flow in wellbore during the production of horizontal well, the formula of mixing and depressurization is derived, which also provides a theoretical basis for evaluating productivity.