Well flow efficiency (geothermal well)

Input(s)

pp^{*}: Horner's False Pressure at (t+Δt=1)(psi)(\mathrm{t}+\Delta \mathrm{t}=1)(\mathrm{psi})

PwfP_{w f}: Bottomhole Pressure at a flowing well (psi)

Δpskin \Delta p_{\text {skin }}: Pressure Drop caused by the Skin Effect (psi)

Output(s)

FEF E: Flow Efficiency (per cent)

Formula(s)

FE=ppwfΔpskinppwfF E=\frac{p^{*}-p_{w f}-\Delta p_{s k i n}}{p^{*}-p_{w f}}

Reference(s)

Ramey Jr, H. J. (1981). Reservoir Engineering Assessment of Geothermal Systems. Department of Petroleum Engineering, Stanford University, Page: (5.14).

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