1- Consider single-phase fluid flow in a 1-D horizontal reservoir. The reservoir is discretized using four blocks in the x-direction. A well located in block 3 produces at a rate of 400STB/D. All grid blocks have Ax=250ft, w=900ft, h=100 ft, and kx=270md. The FVF and the viscosity of the flowing fluid are 1.0 RB/STB and 2cP, respectively. Identify the interior and boundary blocks in this reservoir. Write the flow equation for block 3 and give the physical meaning of each term in the equation