35
Inflow Performance Relationship (IPR)
An IPR study performed with Saphir may be drag-
dropped into Amethyste and the IPR part of the
analysis is immediately complete. Alternatively, test
data can be loaded or drag-dropped into Amethyste.
The IPR option, which is identical to that in Saphir,
is used to define a single, or composite layer IPR.
Multiple models can be selected and compared
from which one is selected as reference. For those
models using a skin, the user can input a total skin
or calculate the skin components using a completion
model. User data can be added for comparison
with the model(s). An IPR plot is created that can be
customized interactively.
Well Performance Analysis (WPA)
The VLP and the IPR overlay intersection provides
the solution for a given set of surface conditions.
Running sensitivity
An unlimited number of sensitivity studies may be
performed. A given study will correspond to a set of
user-controlled values for an IPR parameter, a VLP
parameter or both. A cross-correlation between the
resulting rates and the sensitivity parameters can
then be displayed. The evolution of the productivity
index as a function of the time as the reservoir starts
to deplete can be shown.
Report, export and plot
Amethyste has an extensive range of reporting,
exporting and printing capabilities. Lift curves can
be generated in Eclipse™ format for third party
software.
The browser can be used to drag-drop components
between analyses or between other modules. In
particular, a whole VLP object can be dropped into
Saphir, Topaze, or Rubis and run from those modules
with the possibility of changing any model parameter,
post-transfer.
Sensitivity Analysis
