Patent ID: 11954793
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 19:
20. A method of generating a three-dimensional (3D) facies model comprising:
receiving, from a facies data repository, (i) facies data comprising a plurality of depositional inputs for a subject reservoir, the facies data for the subject reservoir comprising strata defining a sequence stratigraphy comprising one or more sequences of strata, each sequence of the sequence stratigraphy comprising one or more facies, (ii) the sequence stratigraphy comprising the one or more sequences of strata for the subject reservoir, and (iii) the sequence stratigraphy for a total strata of the subject reservoir,
generating a 3D stratigraphic sequence framework comprising a plurality of facies for the subject reservoir based on the facies data and the sequence stratigraphy,
generating a facies volume fraction for each facies of the plurality of facies,
comparing each facies volume fraction for each facies of the plurality of facies with a depositional model of the facies data repository for the subject reservoir and based on the sequence stratigraphy to determine whether a facies of the 3D stratigraphic sequence framework is correctly assigned based on a comparison with the depositional model,
reassigning the facies volume fraction for the facies of the plurality of facies to another facies of the plurality of facies when the comparison determines that the facies of the 3D stratigraphic sequence framework is incorrectly assigned,
generating a plurality of 3D probability trends for the plurality of facies, each 3D probability trend associated with a respective facies of the plurality of facies based on the facies volume fraction for the respective facies, and
generating the 3D facies model based on the plurality of 3D probability trends for the plurality of facies.