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Correlation between pore compressibility
at a given pressure
and
initial pore compressibility | LaTeX Math Inline |
|---|
| body | --uriencoded--c_{ri}%7B\phi i%7D |
|---|
|
at
initial formation pressure :
| Correlation | Scope |
|---|
| LaTeX Math Block |
|---|
| anchor | Dobrynin |
|---|
| alignment | left |
|---|
| \displaystyle c_r\phi(p) = c_{ri\phi i} \cdot \frac{ \ln \left( \frac{ p_n }{p_{\rm max}} \right) }{ \ln \left( \frac{p_{ni}}{p_{\rm max}} \right) } |
| LaTeX Math Block |
|---|
| p_n = p_{\rm min} + 1.75 \cdot \phi^{0.51} \cdot (p_{\rm max} - p) |
| LaTeX Math Block |
|---|
| p_{ni} = p_{\rm min} + 1.75 \cdot \phi^{0.51} \cdot (p_{\rm max} - p_i) |
| Wide pressure range: pmin = 1 MPa < p < pmax = 200 MPa
|
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