GLOSSARY

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Natural Oil Depletion


The EUR during the natural oil depletion can be assessed with the following formula:

...

where 

LaTeX Math Inline
bodyp_s
 – tubing-head pressure defined by the production gathering system, 
LaTeX Math Inline
bodyh
 – is the true vertical depth at formation top, 
LaTeX Math Inline
body\{ \rho_o, \, \rho_g \}
 – oil and gas densities, 
LaTeX Math Inline
bodyp_b
 – bubble-point pressure.



Natural Gas Depletion


The Expected Ultimate Recovery during the natural gas depletion can be assessed with the following formula:

...