Flow Simulation
RMSFlowsim is a fully integrated black-oil simulator within the RMSTM
environment. A graphical user interface links RMS with the reservoir
simulator Tempest MORE, which then can be executed as part of any
workflow within RMS. Access to dynamic simulations will offer the
possibility to investigate dynamic uncertainty, perform forecasting,
or rank models as part of an integrated study within RMS.
IN SUMMARY
• Fully integrated three-phase black-oil flow simulator.
• Improves cross-disciplinary integration in the asset team.
• Offers easy and keyword-free access to a reservoir
simulator.
• Additional access to all simulator keywords through a
keyword editor.
• Extensive range of well and group controls.
• Visualisation of static and dynamic data in the same
powerful viewer.
• Post-processing of dynamic data.
Integrated Static and Dynamic Modelling
RMSFlowsim was designed for geologists and reservoir
engineers operating in an asset team environment. Sharing a single
data model within the team leads to productivity gains and improved
understanding of the reservoir management tasks at each point in
the modeling process. By including dynamic data (production
profiles, well tests and pressure measurements) earlier in the
modeling process, the geologist will be able to handover upscaled
simulation models that are better fitted for history matching by the
preferred in-house full field simulator.
Integration
RMSFlowsim uses the RMS GUI and data management
conventions. This permits an RMSFlowsim job to be easily copied
within or across zones to encourage sensitivity analysis. The job can
be placed in the Workflow Manager and executed across realisations.
RMSFlowsim has access to all RMS grid parameter data within the
zone. The index parameters can be used to set up sub-regions of the
grid within which different rock and fluid properties can be set. These
are also used for defining reporting regions.
The results of the simulation can be displayed in the same 3D window
as the original geological model. The time dependent well and group
profiles can be plotted in the Data Analysis Window of the
multiviewer. The output from multiple simulations created from
different jobs or realisations can be compared. The P10, P50 & P90
envelopes can be displayed as shown in the figure below.
Flow Simulation
Input Data
Traditionally RMS has been used to create, edit and manage the static
data required for reservoir simulations. RMSFlowsim extends the
data model to include automatic calculations of well connection
factors and time dependent well controls.
Events:
The well, group controls and any economic limits are supplied in
event tables. These are time dependent tables that start and end at
specified dates. The engineer need not supply these in time order as
is required by conventional keyword simulators. RMSFlowsim
automatically threads through the complete set of events selecting
them in the correct order.
Grid:
The simulation grid can be a sector of a geological model or an
upscaled model. An index parameter can be used to set regions
inactive.
Grid Properties:
A RMSFlowsim job uses the output from an existing Transmissibility
Job. This contains the effects of all fault multipliers and can easily be
modified to test the effect of sealing faults. The porosity and net to
gross properties are selected from pre-calculated parameters or as
grid wide constants.
Fluid & Rock Properties:
The property tables can be generated from industry standard
correlations, or imported from a full field simulation model.
Graphical plots of this data allow it to be quality controlled before
starting a job.
Wells:
Wells are loaded upstream in RMS. The set of wells and any group
hierarchy can be selected in RMSFlowsim. The wells are manipulated
in real world coordinates. The perforated sections can be set in TVD
or measured depth intervals or according to well log properties. For
example, it is possible to perforate only the grid blocks
corresponding to the channel sands of a defined facies (see Figure
above right).
Reservoir Simulation
RMSFlowsim contains a comprehensive reservoir simulator
employing robust fully implicit solver techniques to handle
demanding reservoir engineering problems. It models multi-phase
flow using the standard black oil model description.
Automatic intelligent coarsening algorithms can be used to
dramatically reduce the number of cells while retaining the dynamic
response of the reservoir. It offers extensive well and group control
modes including economic limit conditions on wells, group and field
level quantities.
The 3D solution arrays: pressure, absolute and mobile saturations,
and their variations over time are reported. Well production and
injection profiles of fluid rates, cumulatives, pressures and regional
averages are available by default.
Roxar 2014
To learn more please visit www.roxarsoftware.com or email
us on [email protected].
ROXAR AS, GAMLE FORUSVEI 17, PO BOX 112, 4065 STAVANGER, NORWAY TELEPHONE +47 51 81 8800 FAX +47 51 81 8801 WWW.ROXAR.COM