Page 113 - Petroleum Production Engineering, A Computer-Assisted Approach

Guo, Boyun / Computer Assited Petroleum Production Engg 0750682701_chap08 Final Proof page 105 20.12.2006 10:36am

PRODUCTION DECLINE ANALYSIS 8/105
8.4 For the data given in the following table, identify a
suitable decline model, determine model parameters,
predict the time when the production rate will decline
to a marginal value of 50 stb/day, and yearly oil pro-
ductions:

Time (mo) Production Rate (stb/day)
1 1,810
2 1,637
3 1,482
4 1,341
5 1,213
6 1,098
7 993
8 899
9 813
10 736
11 666
12 602
13 545
14 493
15 446
16 404
17 365
18 331
19 299
20 271
21 245
22 222
23 201
24 181