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Saturation Height Function

The document summarizes a saturation-height modeling module that allows for core-to-log integration through loading special core data, reviewing and editing pressure data, modeling capillary pressure data shapes, and applying the models within the log domain to solve for free fluid levels by hydraulic zone. It describes four common capillary pressure models within the module and how their coefficients can be correlated with formation properties. The module allows for easy saving and comparison of capillary pressure models against log-derived results and optimizes models to reconcile log and core data using an integrated solver. Key outputs include characterizing parameters, defined saturation-height functions, parametric variations, and free water level estimations.

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367 views2 pages

Saturation Height Function

The document summarizes a saturation-height modeling module that allows for core-to-log integration through loading special core data, reviewing and editing pressure data, modeling capillary pressure data shapes, and applying the models within the log domain to solve for free fluid levels by hydraulic zone. It describes four common capillary pressure models within the module and how their coefficients can be correlated with formation properties. The module allows for easy saving and comparison of capillary pressure models against log-derived results and optimizes models to reconcile log and core data using an integrated solver. Key outputs include characterizing parameters, defined saturation-height functions, parametric variations, and free water level estimations.

Uploaded by

mcemce
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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The Saturation-Height Modeling module provides core-to-log integration via the

following workflow:

 Template loading of special core data.


 Graphical review and edit for QC.
 Transform or normalize pressure data.
 Model capillary pressure data shapes.
 Apply models within log domain.
 Solve for free fluid level by hydraulic zone.

Model design
There are four common functions available within the SHM module: Brooks-Corey,
Lambda, Thomeer, and Leverett-J function. Each functional solution has three
coefficients. The coefficient values can be automatically correlated against formation
properties—such as φ, sqrt(K/φ), and K—using different fit criteria (linear,
logarithmic, exponential, power, and average). The coefficients can be set to be
functions of the formation parameters or to be constants, and instant comparison
against “standard” models can be made for rock typing.

Model application
Capillary pressure models can be easily saved, and direct graphical and quantitative
comparisons made against log derived results. Models can be optimized to fully
reconcile log and core data using an integrated solver.

Outputs
 Characterizing parameters sample-by-sample.
 Fully defined functions.
 Parametric variation with formation properties and rock types.
 Saturation-height function in log domain.
 FWL estimation, single-well, multi-well, or by hydraulic zone.
 Export of equations to reservoir modelling software.

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