Gas Well Testing Handbook

G 1 A gas reservoir was produced at a constant rate q sc of 4.525 mmscfd for a time t of 48 hr. The sandface pressure p wf at that time was 1750 psia. General data are as follows: p = 3100 psia; p i = 3375 psia; z I = 0 .895; c i = 0 .000296 psi ?1; c = 0 .000323 psi ?1; k = 7 .5 mD; T = 605 R; r w = 0 .42 ft; h = 35 ft; i = 0 .01425; i = 0 .01402;
= 0 .142. Calculate dimensionless quantities t D, P D, and q D using the p, p 2 , and ? treatments. (Use ? ? P curve for Example 2 1.)
G 2 A gas well in an infinite-acting reservoir was produced at a constant rate q sc of 6.85 mmscfd for a period of 45 hr. The flowing bottom-hole pressure p wf 1 at that time was 1850 psia. The same well was produced at a constant rate q sc 2 of 10.75 mmscfd for a time of 35 hr. The flowing bottom-hole pressure p wf 2 at that time was 1560 psia. The stabilization shut-in pressure p R prior to each of the two flowing periods was 2100 psia.
Other data pertinent to the test...