# US 2021/0340973 A1 · Single motor-driven dual pump detachment monitoring algorithm > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0340973 A1 - Document ID: US20210340973A1 - Status: Published application - Kind: A1 - Application number: 16/861,906 - Filed: 2020-04-29 - Published: 2021-11-04 - Earliest claimed: 2020-04-29 - Assignees: Halliburton Energy Services, Inc. - Applicants: Halliburton Energy Services, Inc. - Inventors: Andrew Nagler - Web page: https://patentgrep.com/patent/US20210340973A1 ## CPC - F04B 23/06: the pumps being all of reciprocating positive-displacement type - F04B 11/0058: {with piston speed control} - F04B 17/03: driven by electric motors - F04B 23/04: Combinations of two or more pumps - F04B 49/007: {Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel (centrifugal pumps F04D15/0072)} - F04B 49/02: Stopping, starting, unloading or idling control - F04B 49/06: Control using electricity (regulating by means of floats actuating electric switches F04B49/04) - F04B 49/065: {and making use of computers} - F04B 49/10: Other safety measures - F04B 49/20: by changing the driving speed - F04B 51/00: Testing machines, pumps, or pumping installations - F04B 2203/0209: Rotational speed - F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F) ## Abstract The disclosure provides a method for monitoring a pumping system, comprising measuring the speed of a motor of the pumping system, wherein the pumping system further comprises a first pump and a second pump, wherein a control system is configured to operate the pumping system; determining a timeout period, wherein the timeout period is dependent on the speed of the motor; measuring the speed of the first pump, the second pump, or both, wherein there is a hall-effect sensor coupled to each of the first pump and the second pump; determining a designated operating condition of the pumping system; and determining if the first pump, the second pump, or both are enabled to operate in relation to the designated operating condition. ## Claims ### Claim 1 A method for monitoring a pumping system, comprising: measuring the speed of a motor of the pumping system, wherein the pumping system further comprises a first pump and a second pump, wherein a control system is configured to operate the pumping system; determining a timeout period, wherein the timeout period is dependent on the speed of the motor; measuring the speed of the first pump, the second pump, or both, wherein there is a hall-effect sensor coupled to each of the first pump and the second pump; determining a designated operating condition of the pumping system; and determining if the first pump, the second pump, or both are enabled to operate in relation to the designated operating condition. ### Claim 2 (depends on 1) The method of claim 1, wherein both the first pump and the second pump are coupled to the motor. ### Claim 3 (depends on 2) The method of claim 2, wherein one of the first pump and the second pump is enabled to operate in relation to the designated operating condition and the remaining one is not enabled to operate in relation to the designated operating condition. ### Claim 4 (depends on 3) The method of claim 3, further comprising of decrementing measured time from the timeout period. ### Claim 5 (depends on 4) The method of claim 4, further comprising of removing power from the pumping system to terminate operation of the motor. ### Claim 6 (depends on 5) The method of claim 5, further comprising of adjusting a control selector switch to change the designated operating condition. ### Claim 7 (depends on 1) The method of claim 1, wherein the first pump is coupled to the motor and the second pump is decoupled from the motor. ### Claim 8 (depends on 7) The method of claim 7, wherein both the first pump and the second pump are enabled to operate in relation to the designated operating condition, or wherein the second pump is enabled to operate and the first pump is not enabled to operate in relation to the designated operating condition. ### Claim 9 (depends on 8) The method of claim 8, further comprising of decrementing measured time from the timeout period. ### Claim 10 (depends on 9) The method of claim 9, further comprising of removing power from the pumping system to terminate operation of the motor. ### Claim 11 (depends on 10) The method of claim 10, further comprising of adjusting a control selector switch to change the designated operating condition. ### Claim 12 (depends on 1) The method of claim 1, wherein the first pump is decoupled from the motor and the second pump is coupled to the motor. ### Claim 13 (depends on 12) The method of claim 12, wherein both the first pump and the second pump are enabled to operate in relation to the designated operating condition, or wherein the first pump is enabled to operate and the second pump is not enabled to operate in relation to the designated operating condition. ### Claim 14 (depends on 13) The method of claim 13, further comprising of decrementing measured time from the timeout period. ### Claim 15 (depends on 14) The method of claim 14, further comprising of removing power from the pumping system to terminate operation of the motor. ### Claim 16 (depends on 15) The method of claim 15, further comprising of adjusting a control selector switch to change the designated operating condition. ### Claim 17 A pumping system, comprising: a motor; a first pump; a second pump; a control system; and a control selector switch; wherein the first pump and the second pump are removably coupled to the motor; wherein the control system is coupled to the motor, the first pump, and the second pump, wherein the control system is configured to operate and provide power to the pumping system, wherein the control selector switch is coupled to the control system, wherein the control selector switch is configured to designate an operating condition of the pumping system. ### Claim 18 (depends on 17) The pumping system of claim 17, further comprising a hall-effect sensor coupled to the first pump and a separate hall-effect sensor coupled to the second pump, wherein both hall-effect sensors are configured to measure the speed of the first pump and the second pump. ### Claim 19 (depends on 17) The pumping system of claim 17, wherein the hall-effect sensors are communicatively coupled to the control system. ### Claim 20 (depends on 17) The pumping system of claim 17, further comprising a decoupler coupled to the first pump and a separate decoupler coupled to the second pump.