Abstract: System and method for implementing a reservoir simulation system are described. One embodiment is a computer-implemented method of coarsening a fine grid including a plurality of fine gridblocks, the fine grid representing a geological model having at least one discontinuity therein. The method comprises grouping a number of fine gridblocks together to form coarse gridblocks, wherein at least one of the coarse gridblocks is a nonstandard-shaped gridblock; and calculating a transmissibility for each pair of adjacent coarse gridblocks in which at least one gridblock of the coarse gridblock pair is a nonstandard-shaped gridblock. The calculating comprises calculating a transmissibility for each pair of adjacent fine gridblocks; mapping each of the fine gridblock pairs to a coarse gridblock pair; and for each gridblock pair, summing the transmissiblities of the fine gridblock pairs mapped thereto.

Abstract: Plotting correlated data. At least some of the illustrative embodiments are methods including: displaying on a display system of a computer system a two-dimensional plot of output data related to an earth formation, the output data estimated from a model of the earth formation, and the volume plotted relative to modeled time; placing a cursor shown on the display system over a first portion of the two-dimensional plot, the first portion corresponding to a first modeled time; and displaying on the display system a three-dimensional plot of respective values of a parameter from a plurality of cells of the model of the earth formation, the respective values at the first modeled time.

Abstract: Modeling hydrocarbon flow, from layered shale formations. At least some of the illustrative embodiments are methods including: modeling movement of hydrocarbons through kerogen-related porosity, the movement through a first model volume; estimating a first permeability of a kerogen-rich layer of a layered shale formation based on the modeling; and modeling hydrocarbon production from the layered shale formation. The modeling hydrocarbon production may include: utilizing the first permeability for the kerogen-rich layer of the layered shale formation; and utilizing a second permeability for a kerogen-poor layer of the layered shale formation, the second permeability different than the first permeability. In various cases the modeling of hydrocarbon production is with respect to a second model volume greater than the first model volume.

Abstract: Modeling hydrocarbon flow from kerogens in a hydrocarbon bearing formation. At least some of the illustrative embodiments are methods including modeling flow of hydrocarbons through a hydrocarbon bearing formation by: obtaining an indication of kerogen-wet porosity of kerogen within a portion of the formation; obtaining an indication of water-wet porosity within the portion of the formation; modeling hydrocarbon movement through the kerogen-wet porosity; and modeling hydrocarbon movement through the water-wet porosity.

Abstract: Updating a geocellular model. At least some of the illustrative embodiments are methods including: modifying a geocellular model of an earth formation based on an actual datum from an actual borehole, the modifying by: selecting a plurality of cells to be removed from the geocellular model; interpolating to determine a new surface using data associated with cells to be removed, data associated with cells not selected for removal, and the actual datum from the actual borehole; and calculating data associated with new cells that replace the cells to be removed, the new cells with locations relative to the new surface.

Abstract: Plotting correlated data. At least some of the illustrative embodiments are methods including: displaying on a display system of a computer system a two-dimensional plot of output data related to an earth formation, the output data estimated from a model of the earth formation, and the volume plotted relative to modeled time; placing a cursor shown on the display system over a first portion of the two-dimensional plot, the first portion corresponding to a first modeled time; and displaying on the display system a three-dimensional plot of respective values of a parameter from a plurality of cells of the model of the earth formation, the respective values at the first modeled time.

Abstract: System and method for implementing a reservoir simulation system are described. One embodiment is a computer-implemented method of coarsening a fine grid including a plurality of fine gridblocks, the fine grid representing a geological model having at least one discontinuity therein. The method comprises grouping a number of fine gridblocks together to form coarse gridblocks, wherein at least one of the coarse gridblocks is a nonstandard-shaped gridblock; and calculating a transmissibility for each pair of adjacent coarse gridblocks in which at least one gridblock of the coarse gridblock pair is a nonstandard-shaped gridblock. The calculating comprises calculating a transmissibility for each pair of adjacent fine gridblocks; mapping each of the fine gridblock pairs to a coarse gridblock pair; and for each gridblock pair, summing the transmissiblities of the fine gridblock pairs mapped thereto.

Abstract: Plotting correlated data. At least some of the illustrative embodiments are methods including: displaying on a display system of a computer system a two-dimensional plot of output data related to an earth formation, the output data estimated from a model of the earth formation, and the volume plotted relative to modeled time; placing a cursor shown on the display system over a first portion of the two-dimensional plot, the first portion corresponding to a first modeled time; and displaying on the display system a three-dimensional plot of respective values of a parameter from a plurality of cells of the model of the earth formation, the respective values at the first modeled time.

Abstract: Modeling hydrocarbon flow, from layered shale formations. At least some of the illustrative embodiments are methods including: modeling movement of hydrocarbons through kerogen-related porosity, the movement through a first model volume; estimating a first permeability of a kerogen-rich layer of a layered shale formation based on the modeling; and modeling hydrocarbon production from the layered shale formation. The modeling hydrocarbon production may include: utilizing the first permeability for the kerogen-rich layer of the layered shale formation; and utilizing a second permeability for a kerogen-poor layer of the layered shale formation, the second permeability different than the first permeability. In various cases the modeling of hydrocarbon production is with respect to a second model volume greater than the first model volume.

Abstract: Updating a geocellular model. At least some of the illustrative embodiments are methods including: modifying a geocellular model of an earth formation based on an actual datum from an actual borehole, the modifying by: selecting a plurality of cells to be removed from the geocellular model; interpolating to determine a new surface using data associated with cells to be removed, data associated with cells not selected for removal, and the actual datum from the actual borehole; and calculating data associated with new cells that replace the cells to be removed, the new cells with locations relative to the new surface.

Abstract: Modeling hydrocarbon flow from kerogens in a hydrocarbon bearing formation. At least some of the illustrative embodiments are methods including modeling flow of hydrocarbons through a hydrocarbon bearing formation by: obtaining an indication of kerogen-wet porosity of kerogen within a portion of the formation; obtaining an indication of water-wet porosity within the portion of the formation; modeling hydrocarbon movement through the kerogen-wet porosity; and modeling hydrocarbon movement through the water-wet porosity.

Abstract: Plotting correlated data. At least some of the illustrative embodiments are methods including: displaying on a display system of a computer system a two-dimensional plot of output data related to an earth formation, the output data estimated from a model of the earth formation, and the volume plotted relative to modeled time; placing a cursor shown on the display system over a first portion of the two-dimensional plot, the first portion corresponding to a first modeled time; and displaying on the display system a three-dimensional plot of respective values of a parameter from a plurality of cells of the model of the earth formation, the respective values at the first modeled time.