US 12,000,264 B2
Method for quadrimodal fault prediction using strain tensor cyclides
Seth Busetti, Houston, TX (US)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by ARAMCO SERVICES COMPANY, Houston, TX (US)
Filed on Dec. 14, 2021, as Appl. No. 17/644,103.
Prior Publication US 2023/0184093 A1, Jun. 15, 2023
Int. Cl. E21B 47/02 (2006.01); G01V 20/00 (2024.01)
CPC E21B 47/02 (2013.01) [G01V 20/00 (2024.01)] 17 Claims
OG exemplary drawing
 
1. A method of determining three-dimensional fracture geometry in a subterranean region of interest, comprising:
obtaining a strain tensor for the subterranean region of interest;
calculating a set of principal strain components from the strain tensor;
determining a strain cyclide from the set of principal strain components;
calculating a set of quadrimodal fault normal vectors from the strain cyclide;
determining an in-plane shear strain magnitude and a shear strain orientation associated with a quadrimodal fault from the set of quadrimodal fault normal vectors; and
determining a hydrocarbon reservoir development plan based, at least in part, on the in-plane shear strain magnitude and the shear strain orientation,
wherein the hydrocarbon reservoir development plan comprises a wellbore trajectory planned to penetrate a hydrocarbon reservoir within the subterranean region of interest.