Well Testing Course

2. A reservoir has the following properties: k=30md,=0.20,0=0.40cp,B0 =1.2rb/stb,h=42ft,Pi=2880psia,Bw=1.10rb/stb,w=0.20cp,Ct (oil system) =16.0E06psi1,Ct (water system) =18.0E07psi1, all wells have rw =0.33ft,re=2500ft. There are three wells in the field as shown below. A and B are oil producers while C is a water injector. There is a sealing fault in the field between A and B located 250ft away from A. (SA=SB=SC=3) The production injection performance for the three wells is shown in the table below: I. Derive the equation needed to calculate pressure behavior at A. I. Estimate the bottom-hole pressure at A after 1 day of production/injection process