Petroleum Goodies: Gas Compressibility Factor

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Gas Compressibility Factor Posted: 13 Jan 2013 09:13 PM PST Web Tool To Calculate Gas Compressibility Factor We rewrite VBA Excel function to calculate gas compressibility factor (Z) using JavaScript and develop a web tool so Petroleum Goodies users can Z factor directly from our website. This web tool calculates gas compressibility factor for natural gases based on equation of state from Dranchuk and Abou-Kassem. Required inputs: gas gravity (air=1), mole percent of CO2 and H2S, pressure and temperature. This tool also includes intermediate calculation such as pseudocritical pressure and temperature. References: Dranchuk, P.M., and Abou-Kassem, J.H.: “Calculation of Z Factors For Natural Gases Using Equations of State,” J. Cdn. Pet. Tech. (July-Sept., 1975) 34-36. “Theory and Practice of Testing Gas Wells”, 3rd. Edition (1975) Energy Resources Conservation Board 603 6th. Ave. S.W. Calgary, Alberta, Canada. Link to Web Tool To Compute Gas Compressibility Factor. This web tool is also available for download in Excel version. Related Posts: Cumulative Probability Chart

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