1.23 Complete the following using the cost vs. depth data given in Table 1.7 for dry holes drilled in south Louisiana in 1978. a. A plot of cost vs. depth on cartesian paper. b. A plot of cost vs. depth on semilog paper. c. Determine a set of constants a and b of Eq. 1.17 that allow a curve fit of these data. Answer: $59,400 and 0.000096. | TABLE 1.7 - AVERAGE 1978 COSTS OF DRILLING AND EQUIPPING WELLS IN THE SOUTH LOUISIANA AREA Dry Holes Completed Wells Mean Mean Depth interval Number Depth, D, Cost, C Number Depth, D Cost, (ft) of Wells, n; (ft) ($) of Wells, (ft) ($) Oto 1,249 1 1,213 64,289 0 1,250 to 2,499 1 1,542 65,921 9 1,832 201,416 2,499 to 3,749 8 3,015 126,294 20 3,138 212,374 3,750 to 4,999 11 4,348 199,397 20 4,347 257,341 5,000 to 7,499 43 6,268 276,087 47 6,097 419,097 7,500 to 9,999 147 8,954 426,336 117 9,070 614,510 10,000 to 12,499 228 11,255 664,817 165 11,280 950,971 12,500 to 14,999 125 13,414 1,269,210 110 13,659 1,614,422 15,000 to 17,499 54 16,133 2,091,662 49 16,036 2,359,144 17,500 to 19,999 21 18,521 3,052,213 17 18,411 3,832,504 20,000 and more 7 21,207 5,571,320 11 20,810 5,961,053 1.23 Complete the following using the cost vs. depth data given in Table 1.7 for dry holes drilled in south Louisiana in 1978. a. A plot of cost vs. depth on cartesian paper. b. A plot of cost vs. depth on semilog paper. c. Determine a set of constants a and b of Eq. 1.17 that allow a curve fit of these data. Answer: $59,400 and 0.000096. | TABLE 1.7 - AVERAGE 1978 COSTS OF DRILLING AND EQUIPPING WELLS IN THE SOUTH LOUISIANA AREA Dry Holes Completed Wells Mean Mean Depth interval Number Depth, D, Cost, C Number Depth, D Cost, (ft) of Wells, n; (ft) ($) of Wells, (ft) ($) Oto 1,249 1 1,213 64,289 0 1,250 to 2,499 1 1,542 65,921 9 1,832 201,416 2,499 to 3,749 8 3,015 126,294 20 3,138 212,374 3,750 to 4,999 11 4,348 199,397 20 4,347 257,341 5,000 to 7,499 43 6,268 276,087 47 6,097 419,097 7,500 to 9,999 147 8,954 426,336 117 9,070 614,510 10,000 to 12,499 228 11,255 664,817 165 11,280 950,971 12,500 to 14,999 125 13,414 1,269,210 110 13,659 1,614,422 15,000 to 17,499 54 16,133 2,091,662 49 16,036 2,359,144 17,500 to 19,999 21 18,521 3,052,213 17 18,411 3,832,504 20,000 and more 7 21,207 5,571,320 11 20,810 5,961,053