考虑交接面附加阻力的复合油藏试井模型

油井在钻井和完井过程中泥浆的侵入造成近井污染导致渗透率下降；相反由于增产措施近井地带渗透性得到改善致使渗透率升高，这样就可以形成径向渗透性甚至流体特性差异的多区复合油藏。为此，通过引入表皮系数的方法，建立了考虑流体在交接面流动存在附加阻力的复合油藏试井模型，并且应用积分变换方法对该模型进行求解，得到了无因次井底压力解及其特征曲线。计算表明流动对井底压力特征存在一定影响，主要表现在过渡区。

WELL TEST MODEL OF COMPOUND RESERVOIR CONSIDERING ON ADDITIONAL RESISTAN CE FORCE ON CONJOINING PLATE

The invasion of mud in the process of drilling and completion decreases the permeability because of the pollution around wells, while stimulation measure increases the permeability around wells. Therefore multi regional compound reservoir forms with radial permeable or even fluid characteristic difference. Using skin factor method, this paper constructs a well test model of compound reservoir considering additional resistance force in the flow on conjoining plate and gets the resolution of this method using integration changing method to obtain dimensionless downhole pressure resolution and its characteristic curve. The calculation shows that flow resistance force has effect on downhole pressure characteristic, mainly existing in transitional zone.