关键词: 水平井, 压力, 分析, 试井, 典型曲线, 复合油藏

Abstract:

Using integrated source functions,new analytical solutions are presented in the form of Laplace transforms for horizontal wells bounded by two level planes in the vertical direction as well as two different regions in the perpendicular direction.Weakly feeding boundary conditions considered at these planes could involve the situation that one of the boundaries has a constant pressure while the others maintains a no flow boundary.The limit conditions at the composite interface include both circular no flow and constant pressure boundaries.The new solutions can be applied to not only drawdown,but also buildup tests of horizontal wells in a composite reservoir in which could exist either a gas cap or a bottom water.

Key words: horizontal well, pressure, analysis, well testing, typical curve, composite reservoir