1. The figure below is historical production data from the Kuparuk River field. The OOIP is 5,332,979 Mstb and cumulative recovery through 12/31/2004 is 1,971,200,654 stb.
A. Estimate the decline parameters, b, qi, and D.
B. If the field economic rate is 25,000 stb/day, determine
(i) the time to reach the economic limit
(ii) the ERR
(iii) the EUR
(iii) the recovery factor at the economic limit.