Petroleum Goodies: Calculate Gas Properties

Posted: 09 Feb 2013 07:21 PM PST

Web-based & Excel Tools To Calculate Dry Gas Properties

It is essential for Petroleum Engineers to make various calculations in order to arrive at certain important figures on dry gas properties when they are engaged in working on their projects. Since these are quite time consuming calculations the presence of a web-based tool that does the calculations when their input figures are entered is of immense benefit for them. What you get in Excel format in this webpage is exactly that. It is a tool that could help them calculate various figures they need. When it comes to dry gas properties you may need inputs such as gas gravity, mole percent of CO₂ and H₂S, bottom hole pressure and temperature.

In addition to the final calculations they may also need to make intermediate calculations to obtain such figures as pseudocritical pressure and temperature, reduced pressure and temperature. With these calculations they may arrive at such figures as gas compressibility factor (Z), gas viscosity, gas formation volume factor (Bg), gas compressibility (Cg) and gas pseudo pressure (Pp). The tool available in the form of an Excel sheet is able to help Petroleum Engineers to do all these calculations effortlessly.

Various methods have been used in the calculation of dry gas properties. When it comes to the calculation of pseudocritical variables they were based on Sutton equation. For the calculation of gas compressibility factor Dranchuk and Abou-Kassem equation was used. In case of gas viscosity equation it is the Lee, Gonzales and Eakin equation that is being used.

The possibility is there for you to change labels of charts. Also, you could go to chart options and manually adjust the scales of charts. The calculated table available with the tool could be copied on to clipboard or could be exported to Excel or CSV files. When you choose print screen option you could print the charts also if you want.

Link to web-based tool to Calculate Dry Gas Properties.

Download Excel version

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