Patent ID: 11921250
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method for determining a sweet spot for hydraulic fracturing stimulation in a naturally fractured tight sand hydrocarbon reservoir, the method comprising:
obtaining a plurality of measurements from one or more wells accessing the carbonate reservoir;
determining reservoir parameters representing properties of the reservoir;
determining a plurality of maximum horizontal stress values, the plurality of maximum horizontal stress values determined from the reservoir parameters;
determining a fracability index associated with the reservoir using at least one of the reservoir parameters;
determining a brittleness index associated with the reservoir using the plurality of maximum horizontal stress values and at least one of the reservoir parameters;
identifying a fluid flow path using a shear stress, a normal stress, and an aperture of a fracture, wherein identifying a fluid flow path using a shear stress, a normal stress, and an aperture of a fracture comprises determining the aperture of the fracture in the naturally fractured hydrocarbon reservoir using a resistivity, a drilling fluid resistivity, and an excess current measurement;
obtaining fracture injection data from a diagnostic fracture injection test;
determining the sweet spot for hydraulic fracturing stimulation based on the fracability index, the brittleness index, the fluid flow path, and the fracture injection data; and
performing a hydraulic fracturing stimulation operation based on the determined sweet spot.