Page 112 - Intelligent Digital Oil And Gas Fields

Data Filtering and Conditioning
Data frequency: 1 min
Surface pressure, psi 7000 Period: 24 h Data points: 1440 points Average gas rate: 8300 Mscf/d 6500 Average surface pressure: 4480 psi Uptime: 90% (21.6 h) 6000 Data in quarantine if follows physics 5500 Frozen data 5000 Missing data 4500 4000 Surface pressure, psi 3500 3000 2500 Data don’t follow physic 2000

Data spike 1/1/2015 7:12 showing

Gas rate, Mscf/d Data out of range 1/1/2015 2:24 frequency) (1-min

Data spike data raw data.

12,000 10,000 8000 6000 4000 2000 0 12/31/2014 21:36 Typical 3.2 meaningless

Fig.
Gas rate, Mscf/d