Services
Software
In the past, DREAM has also developed technical engineering software for the Petroleum Engineering market; a number of systems have been designed for use on stand-alone bases. DREAM is proud to deliver high quality and user-friendly software to meet clients’ needs. Moreover, we are open to developing client-tailored software as well as to integrating our
methodologies and products into client-established procedures.
Mistral
Aquilon
Sundowner
Calypso
Mistral
Log analysis and uncertainty evaluation for petrophysical characterization
Mistral is an advanced easy-to-use multi-mineral log analysis software for multi-well log interpretation and evaluation of petrophysical uncertainties. The approach to formation evaluation is a multi-log inversion, based on a constrained Gauss-Newton optimization method. It is particularly valuable because it provides confidence intervals for the interpretation results, coupling the Monte Carlo method to the optimization routine. The multi-solution combination option and zone sub-division make the software powerful to analyze mixed lithologies. The software output provides the volume of the system components (fluids and solids), porosity and water saturation profiles, and the associated uncertainties based on user-defined errors potentially affecting both log measurements and model parameters.
Advanced
Non-linear regression analysis based on the Gauss-Newton optimization method;
Error analysis using a Monte Carlo simulation that gives the confidence interval for each volume;
Uncertainties on logs, conductivity model parameters and fluid densities are all taken into account.
Interactive
User-defined vertical zonation of the formation
Cross-plot visualization
User-selected probability distribution for uncertain parameters
Multi-solution combination allowed
Easy to use
Friendly interface for parameter zoning and editing
Common saturation equations available
Comprehensive visualization tools (cross plots, areal plots, volume and log plots)
Easy data loading
User-guide providing helpful tutorials
Short training needed for expert log-analysts, no retraining for occasional users
Aquilon
Numerical 3D near – wellbore model for unconventional well testing
Alternatives to conventional well testing can reduce or eliminate safety issues, environmental constraints, and potential revenue loss. However, they pose some additional difficulties in pressure data interpretation.
Aquilon can simulate production and injection from vertical wells drilled in anisotropic and heterogeneous reservoirs. Fluids injection or production can be imposed along the entire thickness of the reservoir or through restricted intervals, as in the case of partial penetration or perforation and of mini – DST. Thermal exchange, capillary forces, gravitational effects, and diffusion phenomena are all taken into account.
Advanced
Fully implicit simultaneous solution of multi-phase flow equations
Fast and robust preconditioned solver
Adaptive time-stepping
Interactive optimized gridding routine
Flow model coupled to thermal and diffusion phenomena
Capillary and gravitational effects included
Versatile
Multi-phase flow model
User-defined formation heterogeneity and anisotropy
User-specified intervals or production/injection
Easy to use
Friendly interface
Simple visualization tools
Easy data loading
Units converter
Exportable output for further applications
User-guide providing helpful tutorials
Sundowner
Numerical reservoir model for interference pulse testing
Pulse Testing does not require interrupting production nor knowing the previous rate history. However, it poses some additional difficulties in design and interpretation phases.
Sundowner can simulate well pressure response in frequency of both the pulser and the observer wells in a heterogeneous reservoir. Test history is characterized by the superimposition of a periodic rate change over a constant production /injection rate. Multiphase flow is allowed. Comparison with real data is possible.
Advanced
Solution of multi-phase flow equations in frequency domain
Fast and robust solver
Optimized gridding routine
Barriers, channel and heterogeneous scenarios
Boundary effects
Real data preprocessing, including detrending and denoising
Spectral analysis of well production/injection data
Versatile
Multi-phase flow model
User-defined formation heterogeneity and anisotropy
User-specified intervals or production/injection
Easy to use
Friendly interface
Simple visualization tools
Easy data loading
Units converter
Exportable output for further applications
User-guide providing helpful tutorials
Calypso
Well test pressure trend decomposition for information unlocking
Well test generally consist of a series of production/injection flow-periods, typically with increasing/decreasing flow rates or at times with periodic flow rate variations. Generally, each constant rate flow-period is analyzed separately; however, more information could be unlocked from the overall data if a suitable algorithm is applied.
Calypso is standalone software which allows decomposing the recorded pressure signal in the general field or well background trend and in the sequence of transients due to rate variations. Thus, the overall decline trend due to average well production can be analyzed so that a potentially greater distance from the well can be investigated; alternatively, the sequence of transients can be isolated and interpreted if the production history follows a periodic pattern.
Advanced
Innovative decomposition algorithm
Efficient periodic signal detrending
Efficient reconstruction of the background signal
Potential increase of the test investigation distance
Interactive
User-selected decomposition algorithm
Log-log plot visualization
Horner plot visualization
Easy to use
Friendly interface
Simple visualization tools
Easy data loading
Units converter
Exportable output for further applications
User-guide provides helpful tutorial
