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 comparison 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.