Page 183 - Principles of Applied Reservoir Simulation 2E

Chapter 17

In a typical study it is necessary to first specify project objectives. The
objectives help define the level of detail that will be incorporated in the reservoir
model. Once objectives are defined, it is helpful to think of the study proceeding
in three phases [Saleri, 1993 ]: the history match phase; a calibration phase, which
provides a smooth transition between the first and third phases; and the
prediction phase. The first step toward obtaining a history match is the collection
and analysis of data.

17.1 Data Preparation

Data must be acquired and evaluated with a focus on its quality and the
identification of relevant drive mechanisms that should be included in the model
[for example, see Crichlow, 1977; Saleri, et al., 1992; Raza, 1992]. Given that
information, it is possible to select the type of model that will be needed for the
study: conceptual, window area, or full field model. In many cases all three of
these models may need to be used, as illustrated in Fanchi, et al. [1996]. Data
must be acquired for each model.
Some of the data that is required for a model study can be found in
existing reports. The modeling team should find as many reports as it can from
as many disciplines as possible. Table 17-1 lists the types of data that are needed
in a model study. A review of geophysical, geological, petrophysical,, and
engineering reports provides a background on how the project has been
developed and what preconceived interpretations have been established. During

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