FOR B, CAN USE DATA FROM TABLE IN QUESTION E. THANKYOU
The general form of the material balance equation for the abnormally high-pressure volumetric gas reservoirs begins with normal pressured volumetric gas reservoir and include the effects of changing water volume, AVw and formation volume, AVf. a) Demonstrate the general material balance equation to form a straight-line relationship for analyzing abnormally pressured gas reservoirs. b) The following data are the production histories and reservoir properties from Canxue gas field, China. As a reservoir engineer, you are required to determine the original gas in place for normally pressured reservoir and abnormally high-pressure reservoir analysis. c) Compare and analyze the result. d) From the equation above in (a), prove the material balance equation techniques (straight line relationship) for simultaneously estimating formation compressibility and original oil in place in abnormally high-pressure volumetric gas reservoir is equal to 1 son 1) de Piz P21 Gp Piz (P1-P) P24 wSwitc 1-Swt (P1-P) e) Determine the original oil in place and average value for formation compressibility. i) Calculate the vertical and horizontal axis at different Gp MMSCF. ii) Plot the vertical vs horizontal axis. Determine the original oil in place and average value for formation compressibility. P (psia) Pi = 9507 9292 8970 8595 8332 8009 7603 7406 7002 6721 6535 5764 4766 4295 3750 3247 Gas deviation factor, z 1.440 1.418 1.387 1.344 1.316 1.282 1.239 1.218 1.176 1.147 1.127 1.048 0.977 0.928 0.891 0.854 Gas production, Gp, (MMSCF) 0 392 1642 3225 4260 5504 7538 8749 10509 11759 12789 17263 22891 28145 32567 36820 Water compressibility, Cw Formation compressibility, CA Initial water saturation, Swi Original pressure gradient 3.2 x 10 psi 19.5 x 10 psi! 0.24 0.843 psi/ft The general form of the material balance equation for the abnormally high-pressure volumetric gas reservoirs begins with normal pressured volumetric gas reservoir and include the effects of changing water volume, AVw and formation volume, AVf. a) Demonstrate the general material balance equation to form a straight-line relationship for analyzing abnormally pressured gas reservoirs. b) The following data are the production histories and reservoir properties from Canxue gas field, China. As a reservoir engineer, you are required to determine the original gas in place for normally pressured reservoir and abnormally high-pressure reservoir analysis. c) Compare and analyze the result. d) From the equation above in (a), prove the material balance equation techniques (straight line relationship) for simultaneously estimating formation compressibility and original oil in place in abnormally high-pressure volumetric gas reservoir is equal to 1 son 1) de Piz P21 Gp Piz (P1-P) P24 wSwitc 1-Swt (P1-P) e) Determine the original oil in place and average value for formation compressibility. i) Calculate the vertical and horizontal axis at different Gp MMSCF. ii) Plot the vertical vs horizontal axis. Determine the original oil in place and average value for formation compressibility. P (psia) Pi = 9507 9292 8970 8595 8332 8009 7603 7406 7002 6721 6535 5764 4766 4295 3750 3247 Gas deviation factor, z 1.440 1.418 1.387 1.344 1.316 1.282 1.239 1.218 1.176 1.147 1.127 1.048 0.977 0.928 0.891 0.854 Gas production, Gp, (MMSCF) 0 392 1642 3225 4260 5504 7538 8749 10509 11759 12789 17263 22891 28145 32567 36820 Water compressibility, Cw Formation compressibility, CA Initial water saturation, Swi Original pressure gradient 3.2 x 10 psi 19.5 x 10 psi! 0.24 0.843 psi/ft
