Injectivity index

Input(s)

q: Flow Rate of injection Well (STB/day)

p: Reservoir Pressure (psi)

$\mathrm{p}_{\mathrm{wf}}$: Well Flow Pressure (psi)

Output(s)

I: Injectivity Index (STB/day/psi)

Formula(s)

$$ I=\frac{q}{p w f-p} $$

Reference(s)

Horizontal Well Technology, Joshi, Page: 10.