TABLE OF CONTENTS This appendix presents the detailed MathCad solutions for the illustrative examples in Chapter 8.
| Illustrative Example No. 8.2: Minimum Flow Rate MathCad Solution (USCS) | C-2 |
| Illustrative Example No. 8.3: Two Compressor MathCad Solution (USCS) | C-26 |
| Illustrative Example No. 8.2: Minimum Flow Rate MathCad Solution (SI) | C-53 |
| Illustrative Example No. 8.3: Two Compressor MathCad Solution (SI) | C-77 |
Determining the bottom hole and injection pressures while drilling at 10,000 ft of depth for the drilling operations described in Illustrative Examples 8.1.
| q a:1994 | flow rate produced from one compressor (acfm) |
| p st := 14.696 | API standard atmospheric pressure (psia) |
| t st := 60.0 | API standard atmospheric temperature ( F) |
| alt := 4000 | surface elevation of drilling site (ft) |
| p at := 12.685 | pressure from table for surface elevation (psia) |
| t at := 44.74 | temperature from table for surface elevation ( F) |
| P st := p st 144 | convert API standard pressure to lb/ft 2 |
| P st = 2116.224 | (lb/ft 2 abs) |
| T st := t st + 459.67 | convert API standard to R |
| T st = 519.67 | ( R) |
| P at := p at 144 | Convert actual atm pressure to lb/ft 2 |
| P at = 1826.64 | (lb/ft 2abs) |
| T at |
