US 12,291,956 B2
Mechanical and hydromechanical specific energy-based drilling
Robello Samuel, Cypress, TX (US); and Ying Zhao, Tangshan (CN)
Assigned to Landmark Graphics Corporation, Houston, TX (US)
Appl. No. 17/597,831
Filed by Landmark Graphics Corporation, Houston, TX (US)
PCT Filed Aug. 26, 2019, PCT No. PCT/CN2019/102567
§ 371(c)(1), (2) Date Jan. 25, 2022,
PCT Pub. No. WO2021/035472, PCT Pub. Date Mar. 4, 2021.
Prior Publication US 2022/0259968 A1, Aug. 18, 2022
Int. Cl. E21B 44/04 (2006.01); E21B 7/04 (2006.01); E21B 45/00 (2006.01); E21B 44/00 (2006.01)
CPC E21B 44/04 (2013.01) [E21B 7/04 (2013.01); E21B 45/00 (2013.01); E21B 44/00 (2013.01); E21B 2200/20 (2020.05)] 18 Claims
OG exemplary drawing
 
1. A method comprising:
drilling a borehole;
capturing data during the drilling of the borehole, wherein the data comprises at least one value of at least one operational parameter of the drilling;
modifying a specific energy formula used to determine at least one of an efficiency and a quality of the drilling of the borehole, wherein the modifying of the specific energy formula is based on the data captured during the drilling of the borehole, wherein the specific energy formula comprises at least one of a mechanical specific energy (MSE) formula and a hydromechanical specific energy (HMSE) formula;
calculating an adjusted specific energy value for the drilling based on the modified specific energy formula;
determining at least one of the efficiency and the quality of the drilling of the borehole based on the adjusted specific energy value; and
modifying the drilling of the borehole based on the at least one of the efficiency and the quality.