Abstract
Reliable estimates of petroleum reserves are
invaluable in reservoir management decisions and
economic evaluation. Classical decline curve
analysis techniques have been routinely used and
are generally accepted in the industry to reliably
estimate developed reserves up to a
predetermined economic limit qec in oil wells.
However Decline curve analysis techniques are
based on the assumption that past production
trends and their controlling factors will continue in
the future and therefore can be extrapolated for
predictions.
During gas lifting, production trends could be
distorted hence there is need to modify the
classical decline curve analysis equation.
In this study, the principle of superposition has
been applied to the entire duration of production
(t) of wells producing under gas lift This resulted
in the so called Double Semi log equation for well
decline analysis. Model validation with two fields
in the Niger Delta area show excellent results and
the economic advantage of gas lifting. The Models
showed excellent correlation coefficients with
available field data.
It is concluded that gas lift could increase the
reserves in some wells. Furthermore the Double
Semi log technique provides a better and more
reliable theoretical foundation, easier and more
reliable technique for decline analysis in gas lifted
wells.
.A., D (2021). Estimation of Developed Reserves in Gas Lifted wells.. Afribary. Retrieved from https://tracking.afribary.com/works/estimation-of-developed-reserves-in-gas-lifted-wells
.A., DANIEL "Estimation of Developed Reserves in Gas Lifted wells." Afribary. Afribary, 21 Apr. 2021, https://tracking.afribary.com/works/estimation-of-developed-reserves-in-gas-lifted-wells. Accessed 23 Nov. 2024.
.A., DANIEL . "Estimation of Developed Reserves in Gas Lifted wells.". Afribary, Afribary, 21 Apr. 2021. Web. 23 Nov. 2024. < https://tracking.afribary.com/works/estimation-of-developed-reserves-in-gas-lifted-wells >.
.A., DANIEL . "Estimation of Developed Reserves in Gas Lifted wells." Afribary (2021). Accessed November 23, 2024. https://tracking.afribary.com/works/estimation-of-developed-reserves-in-gas-lifted-wells