Methods and systems for operating a fleet of pumps

A pump unit, comprising:

• a dual-shaft gas turbine engine mounted to a gearbox;
• a driveshaft operably connected to the gearbox;
• a reciprocating positive displacement pump operably connected to the driveshaft, wherein the gearbox and the reciprocating positive displacement pump are mounted to a trailer and the dual-shaft gas turbine, the gearbox, the driveshaft, and the reciprocating positive displacement pump are disposed sequentially along the length of the trailer;
• and
• a remote terminal unit configured to collect data from sensors associated with the pump unit and transmit the data to a controller, wherein the controller includes one or more processors and memory having computer-readable instructions stored therein and operable by a processor to:
• operate the pump unit at a first output power, and
• operate the pump unit at a second output power by over-firing the dual-shaft gas turbine engine, the first output power being in a selected range of a maximum continuous power (MCP) level of the plurality of pump units, the second output power being greater than the first output power and being in a selected range of MCP level to a maximum intermittent power (MIP) level of the plurality of pump units.

A pump unit, comprising:

• a dual-shaft gas turbine engine mounted to a reduction gearbox;
• a driveshaft operably connected to the reduction gearbox;
• and
• a reciprocating positive displacement pump operably connected to the driveshaft,
• wherein the reduction gearbox and the reciprocating positive displacement pump are mounted to a trailer and the dual-shaft gas turbine, the reduction gearbox, the driveshaft, and the reciprocating positive displacement pump are disposed sequentially along the length of the trailer, and
• wherein the dual-shaft gas turbine engine is configured to be over-fired to produce an output power in a selected range of 101% of a maximum continuous power (MCP) level of the pump unit to a maximum intermittent power (MIP) level of the pump unit.