Patent Document ID: 20140012557
Application ID: 13995081
Patent Flag: 0

Claim One:
1. A method for 2D domain decomposition during parallel reservoir simulation comprising: a. calculating each combination for a predetermined number of decomposition domains in a reservoir model using a computer processor; b. identifying a number of decomposition domains in an X direction and a number of decomposition domains in a Y direction for one of the combinations; c. calculating one or more decomposition boundaries in a predetermined order for the number of decomposition domains in the X direction and the number of decomposition domains in the Y direction, the predetermined number of decomposition domains being separated by the one or more decomposition boundaries calculated in the predetermined order and assigned a respective actual number of active cells; d. calculating an offset size based on an ideal number of active cells for each of the predetermined number of decomposition domains and the actual number of active cells; e. calculating one or more decomposition boundaries in another predetermined order for the number of decomposition domains in the X direction and the number of decomposition domains in the Y direction, the predetermined number of decomposition domains being separated by the one or more decomposition boundaries calculated in the another predetermined order and assigned a respective another actual number of active cells; f. calculating another offset size based on the ideal number of active cells for each of the predetermined number of decomposition domains and the another actual number of active cells; g. repeating steps b)-f) for each combination calculated in step a), each combination represented by the offset size and the another offset size; and h. selecting one of the combinations with a lowest one of the offset size and the another offset size, the combination with the lowest one of the offset size and the another offset size including the one or more decomposition boundaries calculated in the predetermined direction or the one or more decomposition boundaries calculated in the another predetermined direction.