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

Claim 0:
1. A three-dimensional (3D) facies model generator system comprising:
a 3D facies model memory comprising a model generator component and a facies data repository, the facies data repository comprising
(i) facies data for a 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 for a total strata of the subject reservoir, and
(iii) a depositional model for the subject reservoir based on the sequence stratigraphy,

the facies data comprising a plurality of depositional inputs for the subject reservoir, and
the sequence stratigraphy comprising the one or more sequences of strata for the total strata of the subject reservoir; and
a 3D facies model processor communicatively coupled to the 3D facies model memory and operable to execute machine-readable instructions of the model generator component to
receive, from the facies data repository, (i) the facies data comprising the plurality of depositional inputs for the subject reservoir and (ii) the sequence stratigraphy comprising the one or more sequences of strata for the subject reservoir,
generate a 3D stratigraphic sequence framework comprising a plurality of facies for the subject reservoir based on the facies data and the sequence stratigraphy,
generate a facies volume fraction for each facies of the plurality of facies,
compare each facies volume fraction for each facies of the plurality of facies with the depositional model for the subject reservoir to determine whether a facies of the 3D stratigraphic sequence framework is correctly assigned based on a comparison with the depositional model,
reassign 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,
generate a plurality of 3D probability trends for the plurality of facies, each 3D probability trend associated with respective facies of the plurality of facies based on the facies volume fraction for the respective facies, and
generate the 3D facies model based on the plurality of 3D probability trends for the plurality of facies.