trying to figure how to get to answers. Di=0.572 ; 62.06 bopd

5-5. Production data for a well has been plotted on semi-log paper. Careful analysis indicates that the well is declining hyperbolically. Your best fit has a "b" of 0.5 , qi of 80 bopd and a Di of 0.65/ year on August 1, 2012. Actual production between July 1, 2012 (the first month of production) and 12-31-12 is 12,000Bbl. a) What are the flow rate (bopd), decline rate (1/year), and "b" on 1-1-13? Ans: 62.06 bopd, Di=0.572 /yr, 0.5