Monday, January 11, 2021

Reservoir Gradient: 2021 #13

Well 34X was drilled and completed, but there is debate about the quality of the wireline logs. During well testing, 34X produced 10,200 SCF of 0.8 specific gravity gas with 20 STB of 30 API oil. If the reservoir has a FVF = 1.4 bbl/STB, the fluid gradient is closest to:

A) 0.28 psi/ft
B) 0.29 psi/ft
C) 0.30 psi/ft
D) 0.31 psi/ft.

This problem can be solved using the new Reference exclusively. A similar problem can be found in the Guidebook 13 RES 9. TS8 P33-35 has some good explanations as well.

1 comment:

  1. Is the following recommend? Once you get the density of formation hydrocarbon of 42.93lb/cf to get a SG = 42.93/62.4 then use psi/ft = .052*SG*8.33. This is more intuitive for me to work out then converting from lbm/cf to psi/ft

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