具有底水边界的水平井压力不稳态特征分析及认识

根据水平井三维渗流特征，在底水油藏情形仍假定顶面为不渗透隔层所封闭，底部则是恒压边界，水平井渗流表现为早期径向流以及稳定流动期，由此进行常规试井分析。以TKxxDH井为例，通过水平井的静压、压恢试井资料结果的对比分析，阐述了不稳定试井资料的应用，为此类油藏油井模型的选择及效果评价提供了可借签的经验。

Analysis and Cognition for Unsteady Property of Pressure in Horizontal Well with Bottom Water Boundary

According to three dimensions percolation property of horizontal well, for situation of bottom water reservoir, it is also supposed that tip is occluded by infiltrated layer and bottom is a constant pressure boundary, percolation in horizontal well behaves radial flow and constant flowing period at early time and for this, conventional testing analysis can be done. By sample of TKxxDH well and compari- son and analysis for static pressure and pressure build-up data, the paper expatiates application of data for unsteady well testing which provides a referenced experience for selecting oil well model to this kind of reservoir and the fruit evaluation.