Table 4: The results of calibration of storage tank with deflection of actual storage tank without correction by BP neural network.

Site 1Site 2Site 3Site 4
OH/cmTOR/LOH/cmTOR/LOH/cmTOR/LOH/cmTOR/L

0 3.58 8011827.88 16033484.74 24054967.27
10 140.31 9014271.04 17036340.02 25057230.13
20 885.88 10016823.9318039177.91 26059331.74
30 2084.66 11019468.14 19041983.45 27061244.02
40 3601.50 12022186.49 20044741.3328062931.80
50 5372.10 13024962.73 21047435.73 29064346.91
60 7353.89 14027781.26 22050050.13 30065410.85
70 9514.6115030626.8923052566.96

Where OH is oil height and TOR is theoretical oil reserve.