# US 2026/0098752 A1 · Systems and methods for configuring flow meters > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0098752 A1 - Document ID: US20260098752A1 - Status: Published application - Kind: A1 - Application number: 18/906,037 - Filed: 2024-10-03 - Published: 2026-04-09 - Earliest claimed: 2024-10-03 - Assignees: Chevron U.S.A. Inc. - Applicants: Chevron U.S.A. Inc. - Inventors: Fathollah Gozalpour; Pamela Isobel Chacon; Flavia Viana - Web page: https://patentgrep.com/patent/US20260098752A1 ## CPC - G01F 1/00: Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow (measuring a proportion of the volume flow G01F5/00) - G01F 25/10: of flowmeters - G01F 15/06: Indicating or recording devices - G01F: MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME ## Abstract Measured values of fluid properties for oil, gas, and water at particular operating temperature and operating pressure in a pipe are used to develop fluid phase equilibrium model to calculate fluid properties at other operating temperatures and operating pressures in the pipe. The developed fluid phase equilibrium model is used to generate a fluid property look-up table that establishes correspondence between values of operating temperatures and operating pressures and values of fluid properties for oil, gas, and water. A flowmeter is configured to directly use the fluid property look-up table to measure flowrates of oil, gas, and water in the pipe. ## Claims ### Claim 1 A system for configuring flowmeters, the system comprising: one or more physical processors configured by machine-readable instructions to: obtain measured values of fluid properties for oil, gas, and water in a pipe at an operating temperature and an operating pressure; perform fluid phase equilibrium modeling for the pipe based on the measured values of fluid properties for oil, gas, and water in the pipe at the operating temperature and the operating pressure to determine modeled values of fluid properties for oil, gas, and water in the pipe at different operating temperatures and different operating pressures; generate a fluid property look-up table based on the modeled values of fluid properties for oil, gas, and water in the pipe at the different operating temperatures and the different operating pressures, the fluid property look-up table establishing correspondence between values of operating temperatures and operating pressures and values of fluid properties for oil, gas, and water; and configure a flowmeter to directly use the fluid property look-up table to measure flowrates of oil, gas, and water in the pipe, wherein the flowmeter interpolates between the values of operating temperatures and operating pressures and the values of fluid properties for oil, water, and gas in the fluid property look-up table to determine applicable values of fluid properties for oil, water, and gas in measuring the flowrates of oil, water, and gas in the pipe. ### Claim 2 (depends on 1) The system of claim 1, wherein process calculation is performed based on the fluid property look-up table. ### Claim 3 (depends on 1) The system of claim 1, wherein the fluid property look-up table includes a black oil table. ### Claim 4 (depends on 1) The system of claim 1, wherein the fluid properties for oil, gas, and water include oil density, oil volume factor, oil viscosity, gas density, gas volume factor, gas phase condensate ratio, stock tank gas-oil ratio, water density, water volume factor, water viscosity, and stock tank gas-water ratio. ### Claim 5 (depends on 1) The system of claim 1, wherein the pipe is located at a reservoir, and the measured values of fluid properties for oil, gas, and water in the pipe are obtained at beginning of production from the reservoir. ### Claim 6 (depends on 1) The system of claim 1, wherein: updated values of fluid properties for oil, gas, and water in the pipe are obtained during the production from the reservoir; the fluid phase equilibrium modeling is reperformed based on the updated values of fluid properties for oil, gas, and water in the pipe to determine new modeled values of fluid properties for oil, gas, and water in the pipe; an updated fluid property look-up table is generated based on the new modeled values of fluid properties for oil, gas, and water in the pipe; and the flowmeter is configured to directly use the updated fluid property look-up table to measure the flowrates of oil, gas, and water in the pipe. ### Claim 7 (depends on 1) The system of claim 1, wherein the flowmeter is configured to directly use the fluid property look-up table without using polynomials fitted to the values of operating temperatures and operating pressures and the values of fluid properties for oil, gas, and water in the fluid property look-up table. ### Claim 8 (depends on 1) The system of claim 1, wherein the fluid property look-up table establishes correspondence between the values of operating temperatures and operating pressures and the values of fluid properties for oil, gas, and water for a range of operating temperatures and a range of operating pressures. ### Claim 9 (depends on 8) The system of claim 8, wherein responsive to an applicable temperature being within the range of operating temperatures of the fluid property look-up table and an applicable pressure being within the range of operating pressures of the fluid property look-up table, the applicable values of fluid properties for oil, water, and gas are interpolated. ### Claim 10 (depends on 9) The system of claim 9, wherein responsive to the applicable temperature being outside the range of operating temperatures of the fluid property look-up table or the applicable pressure being outside the range of operating pressures of the fluid property look-up table, the use of the fluid property look-up table by the flowmeter to measure the flowrates of oil, gas, and water in the pipe is stopped. ### Claim 11 A method for configuring flowmeters, the method comprising: obtaining measured values of fluid properties for oil, gas, and water in a pipe at an operating temperature and an operating pressure; performing fluid phase equilibrium modeling for the pipe based on the measured values of fluid properties for oil, gas, and water in the pipe at the operating temperature and the operating pressure to determine modeled values of fluid properties for oil, gas, and water in the pipe at different operating temperatures and different operating pressures; generating a fluid property look-up table based on the modeled values of fluid properties for oil, gas, and water in the pipe at the different operating temperatures and the different operating pressures, the fluid property look-up table establishing correspondence between values of operating temperatures and operating pressures and values of fluid properties for oil, gas, and water; and configuring a flowmeter to directly use the fluid property look-up table to measure flowrates of oil, gas, and water in the pipe, wherein the flowmeter interpolates between the values of operating temperatures and operating pressures and the values of fluid properties for oil, water, and gas in the fluid property look-up table to determine applicable values of fluid properties for oil, water, and gas in measuring the flowrates of oil, water, and gas in the pipe. ### Claim 12 (depends on 11) The method of claim 11, wherein process calculation is performed based on the fluid property look-up table. ### Claim 13 (depends on 11) The method of claim 11, wherein the fluid property look-up table includes a black oil table. ### Claim 14 (depends on 11) The method of claim 11, wherein the fluid properties for oil, gas, and water include oil density, oil volume factor, oil viscosity, gas density, gas volume factor, gas phase condensate ratio, stock tank gas-oil ratio, water density, water volume factor, water viscosity, and stock tank gas-water ratio. ### Claim 15 (depends on 11) The method of claim 11, wherein the pipe is located at a reservoir, and the measured values of fluid properties for oil, gas, and water in the pipe are obtained at beginning of production from the reservoir. ### Claim 16 (depends on 11) The method of claim 11, wherein: updated values of fluid properties for oil, gas, and water in the pipe are obtained during the production from the reservoir; the fluid phase equilibrium modeling is reperformed based on the updated values of fluid properties for oil, gas, and water in the pipe to determine new modeled values of fluid properties for oil, gas, and water in the pipe; an updated fluid property look-up table is generated based on the new modeled values of fluid properties for oil, gas, and water in the pipe; and the flowmeter is configured to directly use the updated fluid property look-up table to measure the flowrates of oil, gas, and water in the pipe. ### Claim 17 (depends on 11) The method of claim 11, wherein the flowmeter is configured to directly use the fluid property look-up table without using polynomials fitted to the values of operating temperatures and operating pressures and the values of fluid properties for oil, gas, and water in the fluid property look-up table. ### Claim 18 (depends on 11) The method of claim 11, wherein the fluid property look-up table establishes correspondence between the values of operating temperatures and operating pressures and the values of fluid properties for oil, gas, and water for a range of operating temperatures and a range of operating pressures. ### Claim 19 (depends on 18) The method of claim 18, wherein responsive to an applicable temperature being within the range of operating temperatures of the fluid property look-up table and an applicable pressure being within the range of operating pressures of the fluid property look-up table, the applicable values of fluid properties for oil, water, and gas are interpolated. ### Claim 20 (depends on 19) The method of claim 19, wherein responsive to the applicable temperature being outside the range of operating temperatures of the fluid property look-up table or the applicable pressure being outside the range of operating pressures of the fluid property look-up table, the use of the fluid property look-up table by the flowmeter to measure the flowrates of oil, gas, and water in the pipe is stopped.