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Static gas pressure gradient estimation (view source)
Revision as of 14:38, 7 April 2014
, 14:38, 7 April 2014→Procedure: estimating gas pressure gradient
file:formation-fluid-pressure-and-its-application_fig5-9.png|{{figure number|2}}Estimate compressibility factor, ''z''.
file:formation-fluid-pressure-and-its-application_fig5-9.png|{{figure number|2}}Estimate compressibility factor, ''z''.
file:formation-fluid-pressure-and-its-application_fig5-10.png|{{figure number|3}}Estimate gas density.
file:formation-fluid-pressure-and-its-application_fig5-10.png|{{figure number|3}}Estimate gas density.
file:formation-fluid-pressure-and-its-application_fig5-11.png|{{figure number|4}}. Copyright: Gearhart-Owens, 1970.
file:formation-fluid-pressure-and-its-application_fig5-11.png|{{figure number|4}}Average gas chart. Copyright: Gearhart-Owens, 1970.
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* If data are available on gas composition and formation temperature go to step 2.
* If data are available on gas composition and formation temperature go to step 2.
* If no data on gas composition or formation temperature are available, estimate gas density from the average gas chart ([[:file:formation-fluid-pressure-and-its-application_fig5-11.png|Figure 4) and go to Step 6.
* If no data on gas composition or formation temperature are available, estimate gas density from the average gas chart ([[:file:formation-fluid-pressure-and-its-application_fig5-11.png|Figure 4]]) and go to Step 6.
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