Geoscience Reference
In-Depth Information
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
3.0
2.5
2.0
1.5
1.0
100
150
200
250
300
350
Temperature, °F
Piper et al.
Sutton (2007) with Wichert-Aziz
Elsharkawy-Elkamel
Standing with Wichert-Aziz
Fig. 2-4. Comparisons of relative errors in gas z-factor correlations using data of table 2-1 split by
temperature. All calculations used Dranchuk-Abou-Kassem z-factor equations.
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