Method for geologic modeling through hydrodynamics-based gridding (Hydro-Grids)

A method for geologic modeling of a sedimentary basin or reservoir, comprising:

• a. obtaining geologic data,
• b. using a computer, creating horizontal grid lines wherein at least one horizontal grid line is based on a deposition rate estimated from the geologic data;
• c. creating vertical grid lines;
• d. determining stratigraphic hierarchy levels of the horizontal grid lines,
• e. merging at least one neighboring horizontal grid line,
• f. upscaling the merged horizontal grid layers based on the stratigraphic hierarchy,
• g. estimating sedimentary properties from the upscaled merged layers,
• h. simulating reservoir performance from the estimated sedimentary properties, and
• i. developing a hydrocarbon reservoir based on the simulated reservoir performance;
• wherein the stratigraphic hierarchy levels assigned to the horizontal grid lines are selected from the group consisting of changes in inlet conditions, changes in simulation conditions, variation in vertical distribution of the composition of a simulated deposit, and any combination thereof.

A computer-implemented method for geologic modeling of a sedimentary basin or reservoir, comprising:

• a. obtaining geologic data,
• b. creating horizontal grid lines wherein at least one horizontal grid line is based on a deposition rate estimated from the geologic data, wherein at least one original horizontal grid line is created by estimating the deposition rate without erosion and erosional effects are reconciled by adjusting at least one of the horizontal grid lines to match the geologic data;
• c. creating vertical grid lines;
• d. determining stratigraphic hierarchy levels of the horizontal grid lines,
• e. merging at least one neighboring horizontal grid line,
• f. upsealing the merged horizontal grid layers based on the stratigraphic hierarchy,
• g. estimating sedimentary properties from the upscaled merged layers,
• h. simulating reservoir performance using the estimate of the sedimentary properties from the upsealed merged layers, and
• i. developing a hydrocarbon reservoir based on the simulated reservoir performance.