Watercut WΣW History Matching @model predicts production adjustments coefficients
\alpha_W(t), \ \alpha_O(t) from WΣW plot by minimizing the following goal function:
|
where
D is the distance between each historical point and model curve on WΣW plot:
|
where
| ||
|
and
\min D \big( P_{\rm mod}}, P_{\rm hist} \big) means minimal distance between point
P_{\rm hist} = \big( ΣWOR_{\rm hist} , WOR_{\rm hist} \big) and the model curve
P_{\rm mod} = \big( ΣWOR_{\rm mod} , WOR_{\rm mod} \big).
The results of the history matching are illustrated on Fig. 1 below.
Fig. 1.1 – WΣW plot before history matching | Fig. 1.2 – WΣW plot after history matching |
Fig. 1.2 – The production adjustments coefficients from Watercut WΣW History Matching @model |
See Also
Petroleum Industry / Upstream / Production / Subsurface Production / Field Study & Modelling / Production Analysis / Watercut Diagnostics / Watercut WΣW plot