US 12,084,958 B2
Systems and methods for determining rock strengths
Khalid Mohammed Alruwaili, Dammam (SA); and Murtadha J. Altammar, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Jan. 4, 2023, as Appl. No. 18/150,035.
Prior Publication US 2024/0218778 A1, Jul. 4, 2024
Int. Cl. E21B 43/119 (2006.01); E21B 43/117 (2006.01); E21B 43/26 (2006.01); E21B 44/00 (2006.01); E21B 47/12 (2012.01); E21B 47/26 (2012.01)
CPC E21B 44/00 (2013.01) [E21B 43/117 (2013.01); E21B 43/26 (2013.01); E21B 47/12 (2013.01); E21B 47/26 (2020.05)] 15 Claims
OG exemplary drawing
 
9. A method for determining a penetration gradient of a formation material, the method comprising:
receiving data of a fracking stage;
determining a penetration gradient of the fracking stage based on the data;
plotting the penetration gradient versus uniaxial compressive strength (UCS) data;
determining, using the plot, a risk profile of the fracking stage; and
classifying the fracking stage based on the risk profile and the penetration gradient.