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Below is the list of the production properties involved on in the above metrics.
Property Abbrevy | Property Name | Formula |
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VRRcum | Cumulative Voidage Replacement Ratio | LaTeX Math Block |
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| {\rm VRR_{cum}} = \frac{B_w \, Q_{WI}}{B_w \, Q_W + B_o \, Q_O + B_g Q_G - B_g R_s Q_O} |
|
VRRcur | Current Voidage Replacement Ratio (month over month) | LaTeX Math Block |
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| {\rm VRR_{cur}} = \frac{B_w \, q_{WI}}{B_w \, q_W + B_o \, q_O + B_g (q_G - R_s Q_O)} |
|
RF | Recovery Factor
| LaTeX Math Block |
---|
| {\rm RF} = \frac{Q_O}{V_{STOIIP}} |
|
Yw | Watercut (production) | LaTeX Math Block |
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| {\rm Y_w} = \frac{q_W}{q_{LIQ}} |
|
Ywm | Watercut (proxy-model) | LaTeX Math Block |
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| {\rm Y_{wm}} = \frac{1}{1 + \frac{K_{ro}}{K_{rw}} \cdot \frac{\mu_w}{\mu_o} \cdot \frac{B_w}{B_o}} |
|
GOR | Gas-Oil Ratio (production) | LaTeX Math Block |
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| {\rm GOR} = \frac{q_g}{q_o} |
|
GOR_m | Gas-Oil Ratio (proxy-model) | LaTeX Math Block |
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| {\rm GOR_m} = R_s + \frac{B_o \, \mu_o}{B_g \, \mu_g} \cdot \frac{k_{rg}}{k_{ro}} |
|
qLIQ | Liquid rate | LaTeX Math Block |
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| q_{LIQ} = q_O + q_W |
|
PIR | Production Injection Ratio (production)
| LaTeX Math Block |
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| {\rm PIR} = \frac{Q_O}{Q_{WI}} |
|
PIRm | Production Injection Ratio Model (model) | LaTeX Math Block |
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| {\rm PIR_m} = { \frac{1}{VRR} } \cdot { \frac{1-Y_w}{ Y_w + (1-Y_w) \bigg[ \frac{B_o}{B_w} - \frac{B_g}{B_w}(GOR - R_s) \bigg] } } |
|
JO | Oil Productivity Index | LaTeX Math Block |
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| {\rm J_{O}} = \frac{q_O}{P_e - P_{wf}} {\quad \Rightarrow \quad} P_{wf} = P_e - \frac{1}{J_O} q_O |
|
JPI | Total Productivity Index (production)
| LaTeX Math Block |
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| {\rm J_t} = \frac{q_t}{P_e - P_{wf}} |
|
JPIm | Total Productivity Index Model(model) | LaTeX Math Block |
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| {\rm J_{tm} } = \frac{2 \pi \sigma}{\ln \frac{r_e}{r_w} +0.5 + S} |
|
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