# US 2019/0169982 A1 · Fluid Production Network Leak Detection > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0169982 A1 - Document ID: US20190169982A1 - Status: Published application - Kind: A1 - Application number: 16/325,184 - Filed: 2017-08-14 - Published: 2019-06-06 - Earliest claimed: 2016-08-16 - Assignees: Schlumberger Technology Corporation - Applicants: Schlumberger Technology Corporation - Inventors: Einar Hauge; Henrik Mathias Eiding; Kjetil Havre; Sigurd Jevne - Web page: https://patentgrep.com/patent/US20190169982A1 ## CPC - E21B 47/10: Locating fluid leaks, intrusions or movements - E21B 41/00: Equipment or details not covered by groups E21B15/00 - E21B40/00 - E21B 43/10: Setting of casings, screens, liners {or the like} in wells - E21B 47/06: Measuring temperature or pressure - E21B 47/07: Temperature - G01M 3/26: by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR ## Abstract A method includes receiving measurement information from a hydrocarbon fluid production network where the measurement information includes pressure data and fluid flow data; receiving simulated information from a model-based framework for the hydrocarbon fluid production network that includes boundary conditions based at least in part on at least a portion of the measurement information; comparing the measurement information and the simulated information to detect a fluid leak in the hydrocarbon fluid production network; determining a location of the fluid leak in the hydrocarbon fluid production network; and outputting the location of the fluid leak in the hydrocarbon fluid production network. ## Claims ### Claim at position 1 -15. (canceled) ### Claim 16 A method comprising: receiving measurement information from a hydrocarbon fluid production network wherein the measurement information comprises pressure data and fluid flow data; receiving simulated information from a model-based framework for the hydrocarbon fluid production network that comprises boundary conditions based at least in part on at least a portion of the measurement information; comparing the measurement information and the simulated information to detect a fluid leak in the hydrocarbon fluid production network; determining a location of the fluid leak in the hydrocarbon fluid production network; and outputting the location of the fluid leak in the hydrocarbon fluid production network. ### Claim 17 (depends on 16) The method of claim 16 comprising analyzing at least a portion of the measurement information to determine whether the hydrocarbon fluid production network is operating in a steady-state. ### Claim 18 (depends on 17) The method of claim 17 comprising, if the hydrocarbon fluid production network is not operating in a steady-state, receiving additional measurement information and based at least in part on the additional measurement information, determining a refined location of the fluid leak in the hydrocarbon fluid production network and outputting the refined location of the fluid leak in the hydrocarbon fluid production network. ### Claim 19 (depends on 16) The method of claim 16 comprising receiving additional measurement information and based at least in part on the additional measurement information, determining a refined location of the fluid leak in the hydrocarbon fluid production network and outputting the refined location of the fluid leak in the hydrocarbon fluid production network. ### Claim 20 (depends on 16) The method of claim 16 wherein the boundary conditions comprise a fluid flow boundary condition at an upstream location that is based on at least a portion of the fluid flow data and a pressure boundary condition at a downstream location that is based on at least a portion of the pressure data wherein the location of the fluid leak is intermediate the upstream location and the downstream location. ### Claim 21 (depends on 16) The method of claim 16 wherein the boundary conditions comprise a pressure boundary condition at an upstream location that is based on at least a portion of the pressure data and a fluid flow boundary condition at a downstream location that is based on at least a portion of the fluid flow data wherein the location of the fluid leak is intermediate the upstream location and the downstream location. ### Claim 22 (depends on 16) The method of claim 16 wherein the simulation information comprises pressure-flow model-based simulation information. ### Claim 23 (depends on 16) The method of claim 16 wherein the simulation information comprises flow-pressure model-based simulation information. ### Claim 24 (depends on 16) The method of claim 16 comprising rendering at least one graphical user interface to a display that comprises a graphic of leak-related information. ### Claim 25 (depends on 24) The method of claim 24 wherein the leak-related information comprises a graphic of at least a portion of the fluid production network and a graphic of the determined location of the fluid leak. ### Claim 26 (depends on 16) The method of claim 16 wherein the determining a location of the fluid leak comprises detecting a change in slope of a pressure profile of pressure with respect to a distance metric of the hydrocarbon fluid production network. ### Claim 27 (depends on 16) The method of claim 16 wherein the determining a location of the fluid leak comprises detecting a difference in slope between at least a portion of a measurement information-based pressure profile and at least a portion of a simulated information-based pressure profile with respect to a distance metric of the hydrocarbon fluid production network. ### Claim 28 (depends on 16) The method of claim 16 comprising receiving equipment information wherein the equipment information comprises operational data for at least one piece of equipment of the hydrocarbon fluid production network. ### Claim 29 (depends on 16) The method of claim 16 wherein outputting the location of the fluid leak in the hydrocarbon fluid production network comprises outputting the location via a network interface of a computing system. ### Claim 30 (depends on 16) The method of claim 16 wherein the measurement information comprises temperature data. ### Claim 31 (depends on 16) The method of claim 16 wherein the comparing the measurement information and the simulated information to detect the fluid leak in the hydrocarbon fluid production network comprises performing a probability analysis for fluid leak probability that is based at least in part on at least one threshold value. ### Claim 32 (depends on 16) The method of claim 16 comprising, responsive to detection of the fluid leak, issuing a control instruction to the hydrocarbon fluid production network wherein the control instruction controls at least one piece of equipment in the hydrocarbon fluid production network. ### Claim 33 (depends on 16) The method of claim 16 comprising transmitting leak-related information to a data transmission system that is operatively coupled to a control system for controlling at least a portion of the fluid production network. ### Claim 34 A system comprising: a processor; memory accessible by the processor; and processor-executable instructions stored in the memory wherein the instructions comprise instructions to instruct the system to: receive measurement information from a hydrocarbon fluid production network wherein the measurement information comprises pressure data and fluid flow data; receive simulated information from a model-based framework for the hydrocarbon fluid production network that comprises boundary conditions based at least in part on at least a portion of the measurement information; compare the measurement information and the simulated information to detect a fluid leak in the hydrocarbon fluid production network; determine a location of the fluid leak in the hydrocarbon fluid production network; and output the location of the fluid leak in the hydrocarbon fluid production network. ### Claim 35 One or more computer-readable storage media comprising computer-executable instructions executable by a computer, the instructions comprising instructions to: receive measurement information from a hydrocarbon fluid production network wherein the measurement information comprises pressure data and fluid flow data; receive simulated information from a model-based framework for the hydrocarbon fluid production network that comprises boundary conditions based at least in part on at least a portion of the measurement information; compare the measurement information and the simulated information to detect a fluid leak in the hydrocarbon fluid production network; determine a location of the fluid leak in the hydrocarbon fluid production network; and output the location of the fluid leak in the hydrocarbon fluid production network.