Dry Gas Downstream Pressure Spreadsheet

Before this we already share about Gas Up Choke Pressure with the function is calculates upstream pressure at choke for dry gases, and for this time we will share about Dry Gas Downstream Pressure Spreadsheet

This spreadsheet calculates dry gas downstream pressure at choke for dry gases. This spreadsheet is very easy to use. Just fill the input, do not forget to enable macros first before using this spreadsheet.

Input for Dry Gas Downstream Pressure Spreadsheet

Upstream pressure:

• Choke size:
• Flowline ID:
• Gas production rate:
• Gas specific gravity:
• Gas specific heat ratio (k):
• Upstream temperature:
• Choke discharge coefficient:

Output for Dry Gas Downstream Pressure Spreadsheet

• Choke area:
• Critical pressure ratio:
• Maximum downstream pressure for minimum sonic flow:
• Flow rate at the minimum sonic flow condition:
• Flow regime (1=sonic flow; -1=subsonic flow):
• The maximum possible down stream pressure in sonic flow:
• Down stream pressure given by subsonic flow equation:
• Estimated down stream pressure: