SAFETY INDICATOR LIGHTS FOR HYDRAULIC FRACTURING PUMPS

摘要

A hydraulic fracturing system includes an electrically powered pump that pressurizes fluid, which is piped into a wellbore to fracture a subterranean formation. System components include a fluid source, an additive source, a hydration unit, a blending unit, a proppant source, a fracturing pump, and an electrically powered motor for driving the pump. Also included with the system is a signal assembly that visually displays operational states of the pump and motor, thereby indicating if fluid discharge lines from the pump contain pressurized fluid. The visual display of the signal assembly also can indicate if the motor is energized, so that the discharge lines might soon contain pressurized fluid.

主权项

1. A hydraulic fracturing system for fracturing a subterranean formation comprising:
a plurality of electric pumps fluidly connected to the formation, and powered by at least one electric motor, and configured to pump fluid at high pressure into a wellbore that intersects the formation, so that the fluid passes from the wellbore into the formation, and fractures the formation; a variable frequency drive connected to the electric motor to control the speed of the motor, wherein the variable frequency drive frequently performs electric motor diagnostics to prevent damage to the at least one electric motor; and a signal assembly that selectively emits a visual signal that is indicative of an operational state of the hydraulic fracturing system.