PtE_412_HW_Set_10_Spring_2007

PtE_412_HW_Set_10_Spring_2007 - 4,900 stb/day for 310 hours...

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PtE 412/464 Homework Set 10 Due April 4, 2007 1. 2. A well is located 150 feet from two perpendicular sealing faults. Given the information below, calculate the pressure drop at this well following 10 hours of production at 100 stb/day: Oil viscosity = 1.0 cp Oil FVF = 1.10 rb/stb Pay thickness = 25 ft Oil permeability = 25 md Wellbore radius = 0.5 ft Total compressibility = 3 x 10-6 psi-1 Porosity = 0.20 3. A pressure buildup test was conducted in a new well following production at a rate of
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Unformatted text preview: 4,900 stb/day for 310 hours. Estimate the reservoir permeability given the following information (assume no wellbore storage): Wellbore radius = 0.35 ft Total compressibility = 22.6 x 10-6psi-1 Porosity = 0.09 Pay thickness = 482 ft Oil viscosity = 0.2 cp Oil FVF = 1.55 rb/stb P wf (t si = 0) = 2,761 psig Shut-in Time (hr) Shut-in Pressure, Pws (psig) 0.84 3,263 1.05 3,267 1.36 3,271 1.99 3,276 4.08 3,289 8.06 3,303 16.02 3,313 26.07 3,320...
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