US 12,139,982 B2
Determining properties of wellbore fluid systems
Eric Cayeux, Sandnes (NO)
Assigned to Norce Innovation AS, Stavanger (NO)
Appl. No. 18/547,536
Filed by Norce Innovation AS, Stavanger (NO)
PCT Filed Feb. 25, 2022, PCT No. PCT/NO2022/050053
§ 371(c)(1), (2) Date Aug. 23, 2023,
PCT Pub. No. WO2022/182249, PCT Pub. Date Sep. 1, 2022.
Claims priority of application No. 20210267 (NO), filed on Feb. 26, 2021.
Prior Publication US 2024/0183232 A1, Jun. 6, 2024
Int. Cl. E21B 21/08 (2006.01)
CPC E21B 21/08 (2013.01) 17 Claims
OG exemplary drawing
 
1. A method of determining at least one property of a wellbore fluid system, the method comprising:
providing measurement apparatus including at least one pipe section;
communicating a drilling fluid through the pipe section;
measuring at least one density which is associated with at least one condition of pressure and temperature of the drilling fluid in the pipe section;
measuring at least one speed of sound of the drilling fluid in the pipe section;
providing or estimating at least one heat capacity of the drilling fluid;
providing a model of density of the drilling fluid related to pressure and temperature;
determining coefficients of the model using the measured density of the drilling fluid, the speed of sound of the drilling fluid, and the heat capacity of the drilling fluid; and
using the model with determined coefficients to determine the property of the wellbore fluid system.