Gas Lost in Section of a Full-Bore Rupture

Full Bore Calculation

Gas lost is a calculation is a full-bore rupture where an accidental release occurs on both ends of the pipe under subsonic conditions.

Some of the limitations include pressure, location, size of pipe, time to isolate, etc. with two separate ends.

Where
π‘ƒπ‘Žπ‘£π‘’ βˆ’ average pressure[psia]
𝐷 βˆ’ Pipe Inside Diameter[ft].
𝐿 βˆ’ Pipeline Length[ft]
𝑛𝑇 βˆ’ Total numbers of moles of gas[lbβˆ™moles]
𝑅 βˆ’ Gas constant, 10.73[ft3βˆ™psia/lbβˆ™moles Β°R]
π‘π‘Žπ‘£π‘’ βˆ’ average compressibility factor
π‘‡π‘Žπ‘£π‘’ βˆ’ Gas Average Temperature[Β°R]

This value will be used to determine the gas volume Vb existing in pipeline at base condition (Pb = 14.71 and Tb = 520)

Input Parameters

  1. To create a new case, click the β€œAdd Case” button
  2. Select the Gas Lost in Section of a Full-Bore Rupture application in the AGR & GPRA module.
  3. Enter Case Name, Location, Date and any necessary notes.
  4. Fill out all required fields.
  5. Make sure the values you are inputting are in the correct units.
  6. Click the CALCULATE button.
  • Pipe Size
  • Wall Thickness
  • Average Gas Temperature
  • Base Pressure
  • Upstream Pressure
  • Downstream Pressure
  • Internal Pipe Diameter
  • Pipeline Length
  • Gas Specific Gravity

Outputs/Reports

  1. View the results.
  2. If an input parameter needs to be edited be sure to hit the CALCULATE button after the change.
  3. To SAVE, fill out all required case details then click the SAVE button.
  4. To rename an existing file, click the SAVE As button. Provide all case info then click SAVE.
  5. To generate a REPORT, click the REPORT button.
  6. The user may export the Case/Report by clicking the Export to Excel/PowerPoint icon.
  7. To delete a case, click the DELETE icon near the top of the widget.
  • Average Pressure
  • Average Compressibility Factor
  • Pack in Gas Pipeline

Related Links

Table of Contents
Table of Pages
  1. Pipeline HUB User Resources
  2. AC Mitigation PowerTool
  3. API Inspectors Toolbox
  4. Horizontal Directional Drilling PowerTool
  5. Crossings Workflow
  6. Pipeline Toolbox
  7. Encroachment Manager
  8. PRCI AC Mitigation Toolbox
  9. PRCI Thermal Analysis for Hot-Tap Welding
  10. PRCI River-X
  11. PRCI RSTRENG
  12. RSTRENG+
  13. Ad-hoc Analysis
  14. Database Import
  15. Data Availability Dashboard
  16. ESRI Map
  17. Report Builder
  18. Hydrotest PowerTool
  19. Investigative Dig PowerTool
  20. Hydraulics PowerTool
  21. External Corrosion Direct Assessment Procedure – RSTRENG
  22. Canvas
  23. Definitions
  24. Pipe Schedule and Specifications Tables