Abstract:

Taking a water bottom reservoir in Tarim Basin as an example,the results of developing the reservoir with horizontal well and vertical well are compared and studied in this paper.The results prove that horizontal well development is superior to the vertical well development.Then the mode of developing the reservoir with horizontal well according to reservoir engineering,physical test and reservoir numeric simulation were studied.A new method of calculating critical production and critical bettom flowing is proposed.It is suggested that,in developing water bottom reservoir with horizontal well,one should pay attention to the effect of horizontal and vertical permeability,and that different primary allocations may have different effects on developing results.The horizontal section of the horizontal well should be limited within 70%～90% of the relative thickness of oil layer.

Key words: horizontal well, vertical well, bottom water pool, developing way, critical production