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Petrel RE: Creating initial conditions from the a contact set Content ID:
6977561
Content Type: Solution Last Updated:
2/24/2017 1:55:11 PM
Version:
All
Application:
Petrel Reservoir Engineering, Petrel
Attachments :
InitialConditionsFromMakeContactsRegion.zip
How to use a contact set to create an initial condition set for use in simulation
Details Contact sets are commonly used by Geoscientists in Petrel to perform volume calculations. They define the contact distribution in the static model. They can also be used to create the initial conditions for simulation case, and it has many advantages, to name a few: - Consistency is ensured between the contacts used in static and dynamic calculations - Existing grid information such as zones, segments or regions can be used - Presenting alternative means of visualization after the object is created To create a contact set, the user must first go to the Reservoir Engineering ribbon, under the subgroup Fluids and Fluids and click the Make contacts icon. contacts icon. Several properties are available to be added. For simulation purposes, the following set is commonly used, but items may be replaced depending on the model (e.g. if a gas-water contact exists instead): - Gas oil contact - Oil water contact - Pressure - Datum - Gas-oil capillary pressure (typically zero) - Oil-water capillary pressure (typically zero) Each can be subdivided according to zones and segments or a precalculated regions property.
Once created, the contact set is stored under the active grid in the Models pane, Models pane, and can be visualized in many different window types through Petrel.
Also, by opening the Settings for this object, an operation is available to create 3D properties illustrating the different fluid zones in the reservoir.
More importantly, the contact set can be dropped into the Initial conditions tab of the Make fluid model process (found under the Reservoir Engineeri ribbon). A target number of initial conditions (i.e. the maximum number of equilibration regions in the simulation model expected from the contact set information) can be specified.
Once that is done, clicking the Fill table from contacts button populates the fluid model with the initial conditions, which are stored in the Input pane un the PVT data.
You may notice that the number of created regions may be different from the one in the input data. This can be due to many reasons, such as limiting the target number of initial conditions or regions being merged for having identical initialization data. When this occurs, Petrel creates a property in the Models pane to map the initial condition sets to representative regions in the grid.
These two items, the initial conditions set and the mapping region property, can then easily be used to define the initialization in a simulation case. This i done through the Define case tool (this time found under the Simulation ribbon), in its Functions tab.
Attached is a Petrel project that exemplifies the workflow. Additional information is also available through Petrel Guru. Rate this article (1 Rati
