Which among the counterbalancing techniques you think is the best in controlling a progressive error? Cite an example of a research topic wherein you would use that technique.

The following PVT data are for the Aneth Field in Utah

The initial reservoir temperature was 133°F. The initial pressure was 2200 psia, and the bubblepoint pressure was 1850 psia. There was no active water drive. From 1850 psia to 1300 psia, a total of 720 MM STB of oil and 590.6 MMM SCF of gas was produced.

(a) How many reservoir barrels of oil were in place at 1850 psia?

(b) The average porosity was 10%, and connate water saturation was 28%. The field covered 50,000 acres.

What is the average formation thickness in feet?
 

Pressure (psia) Bo (bbl/STB) Rso (SCF/STB) Bg (bbl/SCF) Ho/g 727 727 654 563 469 374 277 143 78 2200 1850 1600 1300 1000 700 400 100 40 1.383 1.388 1.358 1.321 1.280 1.241 1.199 1.139 1.100 0.00130 0.00150 0.00182 0.00250 0.00375 0.00691 0.02495 0.05430 35 39 47 56 68 85 130 420