Software

ReservoirGrail is a Proprietary, Proven Technology That Models and Simulates Mature Assets to Quantify the Amount and Location of Remaining Hydrocarbons

Very few waterflood properties have been simulated or modeled

ReservoirGrail gives your company a large competitive advantage

Employs “Agent-Based Modeling” to simulate the migration of reservoir fluids through time

Requires less data input and resources, yet delivers similar output to other simulators faster¹

Recognized as one of the “6 Best Reservoir Simulation Tools”²

(1) Less than 1% global error when compared to conventional simulator (Rice University Computational and Applied Mathematics; Modeling of Porous Media consortiums)

(2) Engineeringworldchannel.com

Process

  • Topographic map with green, yellow, and white zones, and blue circles highlighting specific areas.

    1. Original Oil in Place w/ Production Bubbles

    Original OIP Map is calculated from a net reservoir thickness map, the original oil saturation and porosity.

    Notice how the production bubbles, a common illustration for produced oil, sometimes extend outside of the net pay map.

  • Colorful topographic map with red, orange, green, blue, and yellow contour lines.

    2. Drainage Map For One Well

    Drainage Map is generated by sending millions of “agents” from each well location into the Flowpath Map.

    Flowpath Map depicts the flow characteristics of the reservoir.

    Resulting Drainage Maps determine how each well communicates with the reservoir.

  • Topographic map with green, yellow, and white contour lines and blue circles marking specific locations.

    3. Remaining Oil in Place (ROIP) w/ Production Bubbles

    ROIP Map locates and quantifies the remaining recoverable oil at present conditions.

    From this map, development plans can be made to optimize field production.

    Notice again how the production bubbles do not accurately represent where fluids were drained.

Process for Typical Workflow

Step 1: Contour a map that best represents the quality of your reservoir (e.g. a net sand map).
Step 2: Digitize the map if it is not already in a digital environment.
Step 3: Grid the map.
Step 4: Input the grid to ReservoirGrail using a standard grid format.
Step 5: Input average reservoir parameters (porosity, initial hydrocarbon saturation, residual hydrocarbon saturation, free water level, etc…).
Step 6: Input historical production and injection volumes and locations for each well in the reservoir interval you are modeling.
Step 7: Run the model.
Step 8: Evaluate results for historical accuracy.
Step 9: Adjust input data that is less-certain and rerun the model until you reach a satisfying ROIP map.
Step 10: Based on your ROIP map, create depletion and secondary recovery plans.
Step 11: Update, maintain and continue to run primary and secondary recovery simulations as new data is received.
Reservoir Simulation Check-list Conventional Simulator ReservoirGrail Simulator
Structure Map ✓
Net Pay Map ✓ ✓
Fluid Contacts ✓
Permeability Map ✓
Ratio of Vertical/Horiz Perm ✓
Porosity ✓ ✓
Connate Water Saturation ✓ ✓
Relative Permeability Curves ✓
PVT Properties Table (Bo, Bg, Rs, vis-o, vis-g) ✓
PVT Constants (Bo, Bg, Rs) ✓
Specific Gravity ✓
Production and Injection Volumes ✓ ✓
Completion and Well Event History ✓
Well Coordinates and Trajectory ✓ ✓
Reservoir Pressure History ✓

ReservoirGrail Inputs/Outputs

*The items not checked under the ReservoirGrail Simulator column are not required to build a reliable and high-quality model. However, if available, they can be incorporated to further enhance the interpretation and add depth to the analysis.

Results

  • ReservoirGrail was 10x faster and less expensive

  • Outputs almost identical

Industrial piping system with gauges and valves in a desert landscape under a cloudy sky.