US 12,481,804 B2
Cutter and drill bit design by virtual testing with digitized rocks
Xiaoge Gan, Houston, TX (US); Ke Chen, Houston, TX (US); Yansong Huang, Beijing (CN); and Paul Bolchover, Beijing (CN)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Nov. 12, 2021, as Appl. No. 17/454,723.
Claims priority of provisional application 63/198,800, filed on Nov. 13, 2020.
Prior Publication US 2022/0156429 A1, May 19, 2022
Int. Cl. G06F 30/17 (2020.01); E21B 41/00 (2006.01); G06F 111/10 (2020.01)
CPC G06F 30/17 (2020.01) [E21B 41/00 (2013.01); E21B 2200/20 (2020.05); G06F 2111/10 (2020.01)] 7 Claims
OG exemplary drawing
 
1. A method, comprising:
modeling a rock of a physical formation using a computer modeling program to form a digitized rock sample;
simulating a cutting element cutting the digitized rock sample;
storing in a digital rock interaction file, outputs from the simulating of the cutting element cutting the digitized rock sample;
modeling a drill bit that includes the simulated cutting element, based at least in part on information in the digital rock interaction file;
drilling the physical formation using a physical drill bit to obtain rock interaction data between the physical drill bit and the physical formation, wherein the physical drill bit has a design that is substantially the same as the drill bit model;
calibrating the simulating of the cutting element cutting the digitized rock sample based on one or more differences between the rock interaction data and the outputs of the simulating stored in the digital rock interaction file;
storing outputs from the calibrated simulating in the digital rock interaction file;
using data in the digital rock interaction file to simulate the drill bit model in a drilling operation; and
selecting a type of cutting element to use on the physical drill bit based at least in part on the digital rock interaction file.