Parameter monitoring and control for an electric driven hydraulic fracking system

Patent metadata

Field	Value
Publication number	US-11976524-B2
Application number	US-202318226002-A
Country	US
Kind code	B2
Filing date	Jul 25, 2023
Priority date	Feb 14, 2019
Publication date	May 7, 2024
Grant date	May 7, 2024

Abstract

An electric driven hydraulic fracking system is disclosed. A pump configuration includes the single VFD, the single shaft electric motor, and the single hydraulic pump mounted on the single pump trailer. A controller associated with the single VFD and is mounted on the single pump trailer. The controller monitors operation parameters associated with an operation of the electric driven hydraulic fracking system as each component of the electric driven hydraulic fracking system operates to determine whether the operation parameters deviate beyond a corresponding operation parameter threshold. Each of the operation parameters provides an indicator as to an operation status of a corresponding component of the electric driven hydraulic fracking system. The controller initiates corrected actions when each operation parameter deviates beyond the corresponding operation threshold. Initiating the corrected actions when each operation parameter deviates beyond the corresponding operation threshold maintains the operation of the electric driven hydraulic fracking system.

First claim

What is claimed is:

1. An electric driven hydraulic fracking system to pump a fracking media into a well to execute a fracking operation to extract a fluid from the well, comprising:
a Variable Frequency Drive (VFD) is configured to drive an electric motor that is associated with the VFD to control the operation of the electric motor to drive a hydraulic pump associated with the VFD and the electric motor; and
a controller associated with the VFD is configured to:
monitor a plurality of pressure parameters associated with an operation of the electric driven hydraulic fracking system as each component of the electric driven hydraulic fracking system operates to determine whether at least one pressure parameter deviates beyond at least one corresponding pressure parameter threshold, wherein each of the pressure parameters provides an indicator as to an operation status of a corresponding component of the electric driven hydraulic fracking system, and
initiate at least one corrected action when each pressure parameter deviates beyond the at least one corresponding pressure parameter threshold, wherein initiating at least one corrected action when each pressure parameter deviates beyond the at least one corresponding pressure parameter threshold maintains the operation of the electric driven hydraulic fracking system.

2. The electric driven hydraulic fracking system of claim 1 , wherein the controller is further configured to:
monitor a wellhead pressure parameter of a wellhead associated with a well as a fracking media is continuously injected into the well to determine whether the wellhead pressure parameter associated with a fracking media pressure of the fracking media injected into the well exceeds a fracking media pressure threshold, wherein the fracking media pressure threshold is indicative that the fracking media pressure of the fracking media injected into the well requires a corrective action of decreasing torque generated by the electric motor that drives the hydraulic pump;
automatically decreasing the torque generated by the electric motor that drives the hydraulic pump to decrease the fracking media pressure of the fracking media that is injected into the well to below the fracking media pressure threshold; and
automatically increasing the torque generated by the electric motor that drives the hydraulic pump when the fracking media pressure decreases below the fracking media pressure threshold.

3. The electric driven hydraulic fracking system of claim 1 , wherein the controller is further configured to:
monitor a pump pressure parameter generated from a leak pressure that is applied to the hydraulic pump as the leak pressure is increased to a pump pressure threshold, wherein the pump pressure parameter generated from the leak pressure that is applied to the hydraulic pump that is increased to the pump pressure threshold is indicative to determine whether leaks are present in the hydraulic pump when the pump pressure parameter generated from the leak pressure applied to the hydraulic pump is increased to the pump pressure threshold;
increase the pump pressure parameter that is generated from the increase in the leak pressure applied to the hydraulic pump to the pump pressure parameter threshold before the electric driven hydraulic fracking system executes the fracking operation; and
determine whether leaks are present in the hydraulic pump when the pressure parameter that is generated from the increase in the leak pressure applied to the hydraulic pump is increased to the pump pressure parameter threshold.

4. The electric driven hydraulic fracking system of claim 3 , wherein the controller is further configured to:
monitor the pump pressure parameter generated from the leak pressure that is applied to the hydraulic pump as the leak pressure of the hydraulic pump is increased to the pump pressure threshold, wherein the operating pressure parameter generated from the operating pressure of the hydraulic pump that is increased to the pump pressure threshold is indicative to determine whether leaks are present in the hydraulic pump;
instruct the hydraulic pump to execute a positive displacement as the pump pressure parameter generated from the leak pressure that is applied to the hydraulic pump is increased to the pump pressure threshold; and
determine whether the pump pressure parameter generated from the leak pressure that is applied to the hydraulic pump increases to a leak pump pressure threshold when the hydraulic pump executes the positive displacement, wherein the pump pressure parameter generated from the leak pressure that is applied to the hydraulic pump when the hydraulic pump executes the positive displacement increases from the pump pressure threshold to the leak pump pressure threshold is indicative of leaks are present in the hydraulic pump and the pump pressure parameter generated from the leak pressure that is applied to the hydraulic pump when the hydraulic pump executes the positive displacement does not increase from the pump pressure threshold to the leak pump pressure threshold is not indicative of leaks that are present in the hydraulic pump.

5. The electric driven hydraulic fracking system of claim 4 , wherein the controller is further configured to:
monitor the pump pressure parameter generated from the leak pressure that is applied to the hydraulic pump as the leak pressure of the hydraulic pump is increased to the pump pressure threshold as the hydraulic pump executes the positive displacement;
determine whether the pump pressure parameter generated from the leak pressure that is applied to the hydraulic pump spikes at an increase from the pump pressure threshold to a pressure damage threshold as the hydraulic pump executes the positive displacement, wherein the leak pressure that is applied to the hydraulic pump that spikes at the increase from the pump pressure threshold to the pressure damage threshold as the hydraulic pump executes the positive displacement is indicative of causing damage to the hydraulic pump; and
automatically apply torque to the hydraulic pump to a torque threshold as the hydraulic pump executes the positive displacement, wherein the applying of torque to the hydraulic pump at the torque threshold enables the pump pressure parameter generated from the leak pressure that is applied to the hydraulic pump as the leak pressure of the hydraulic pump is increased to the pump pressure threshold as the hydraulic pump executes the positive displacement to decrease below the pressure damage threshold thereby preventing damage to the hydraulic pump.

6. The electric driven hydraulic fracking system of claim 5 , wherein the controller is further configured to:
automatically apply torque to the hydraulic pump to the torque threshold to control the increase in the pump pressure parameter generated from the leak pressure that is applied to the hydraulic pump as the hydraulic pump executes the positive displacement to increase the pump pressure parameter in a linear reaction towards the pressure damage threshold and to prevent the increase in the pump pressure parameter from spiking to the pressure damage threshold thereby preventing damage to the hydraulic pump.

7. The electric driven hydraulic fracking system of claim 5 , wherein the controller is further configured to:
monitor an operating pump pressure parameter generated from an operating pressure of the hydraulic pump as the hydraulic pump operates to determine whether the operating pressure of the hydraulic pump exceeds a pressure damage threshold thereby indicating whether leaks are present in the hydraulic pump, wherein the pressure damage threshold is indicative that the operating pressure of the hydraulic pump requires a corrective action of applying torque to the hydrau

Assignees

• Halliburton Energy Services Inc

Inventors

• Fischer John
• Crosetto John J
• Kubricht David
• Cheatham Richard
• Pollack Jeffrey
• Lawman Chad
• Todd David
• Nolen Tyler

Classifications

• H02J13/34

  the equipment being switches, relays or circuit breakers · CPC title

• E21B21/08 Primary

  Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure (valve arrangements therefor E21B21/10) · CPC title

• E21B4/04

  Electric drives (E21B4/12 takes precedence) · CPC title

• E21B7/022

  Control of the drilling operation; Hydraulic or pneumatic means for activation or operation (control circuits for drilling masts E21B15/045) · CPC title

• E21B43/2605

  using gas or liquefied gas · CPC title