Patent ID: 11954800
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Measurement (Instruments)
Classification: CPC G  E | IPC E  G

Claim 0:
1. A computer-implemented method for three-dimensional (3D) borehole numerical modeling, comprising:
receiving a plurality of CT-scan images of a core sample of a rock, wherein the core sample of the rock comprises a borehole, and wherein the plurality of CT-scan images are cross-section CT-scan images of the core sample of the rock at a plurality of depths of the borehole;
performing, for each of the plurality of CT-scan images and with respect to each of a plurality of circumferential position angles, a triangulation process on pixels of each of the plurality of CT-scan images;
in response to performing, for each of the plurality of CT-scan images and with respect to each of the plurality of circumferential position angles, the triangulation process, determining, for each of the plurality of CT-scan images, a plurality of radii of the borehole corresponding to the plurality of circumferential position angles;
generating, based on the plurality of radii of the borehole of each of the plurality of CT-scan images and using a meshing function, a plurality of nodal coordinates of 3D numerical model mesh of the borehole; and
providing, based on the plurality of nodal coordinates of the 3D numerical model mesh of the borehole, an advisory on drilling window limits of mud weight for avoiding rock failure of a wellbore, wherein the core sample is a rock sample from the wellbore.