Water-driven oil in porous media fluid and solid coupled heat transfer control equations was established by the theory of percolation mechanics and the sandstone reservoir was porous medium. Different well pattern was established for the same reservoir numerical simulation, qualitative analysis of the process of oil pressure, the remaining oil distribution, and the various concentration range the proportion of oil, quantitative analysis of the volume fraction of the sum of the remaining oil and various oil recovery year. The results show that 5 to 9 years of oil remaining oil distribution changed in the inert area, during this time recovery changed smoothly; Analysis of a variety of oil recovery wells arrangement size was that five-spot well pattern was larger than nine-pot well pattern, and nine-spot well pattern was larger than Line shape well pattern. When the water intensity constant, from the perspective of recovery. For this reservoir five-spot well pattern was the best well pattern.