The present invention provides a smart and automated system that is used for refueling of frac truck tanks during fracturing operations. The system is used to refuel the frac truck tanks which are constantly working in the high pressure and high-temperature zone for the fracturing of the wellbore to extract oil and gas. For safety, the system is equipped with explosion/fire free wiring system. The system incorporates inventive fuel valve to avoid the fuel clogging that increases the frac truck performance. The system employs artificial intelligence (AI) and cloud-based software for ease of operation and to maximize economic performance. The system is equipped with artificial intelligence and Programmable Logic Controller (PLC) software and incorporates charge pump and loop systems which maintain a predetermined pressure (in Pounds per Square Inch (PSI) unit) in each loop so as to maximize the performance and control function in the refueling system.

A robotic servicing system. The robotic servicing system includes an evacuation system, a refill system and a robotic assembly. The evacuation system includes a first quick connect fitting configured to mate with a quick connect valve of a vehicle. The refill system includes a second quick connect fitting configure to mate with the quick connect valve of the vehicle. The robotic assembly is couplable to the evacuation system and the refill system, and is configured to autonomously connect the first and second quick connection fittings to the quick connect valve of the vehicle.

Methods and systems are provided for increase a rate at which a saddle fuel tank is depressurized responsive to a request for refueling. In one example, a method may include, responsive to the request for refueling, depressurizing a primary side of the saddle fuel tank to a secondary side of the saddle fuel tank, and commanding open a refueling lock coupled to the primary side to allow fuel to be delivered to the primary side when pressure in the primary side drops below a threshold pressure. In this way, the secondary fuel tank may be maintained at atmospheric pressure prior to the request for refueling, which may increase the rate of depressurization of the saddle fuel tank responsive to the request.

Methods and systems are provided for increase a rate at which a saddle fuel tank is depressurized responsive to a request for refueling. In one example, a method may include, responsive to the request for refueling, depressurizing a primary side of the saddle fuel tank to a secondary side of the saddle fuel tank, and commanding open a refueling lock coupled to the primary side to allow fuel to be delivered to the primary side when pressure in the primary side drops below a threshold pressure. In this way, the secondary fuel tank may be maintained at atmospheric pressure prior to the request for refueling, which may increase the rate of depressurization of the saddle fuel tank responsive to the request.

Installation and method for filling tanks with pressurized gas in which fluid supplied to the buffer storage reservoir is at a relatively higher first temperature while fluid is being withdrawn from the buffer storage reservoir to fill a tank and fluid is supplied to the buffer storage reservoir at a relatively lower second temperature when fluid is not being withdrawn from the buffer storage reservoir to fill a tank.

Installation and method for filling tanks with pressurized gas in which fluid supplied to the buffer storage reservoir is at a relatively higher first temperature while fluid is being withdrawn from the buffer storage reservoir to fill a tank and fluid is supplied to the buffer storage reservoir at a relatively lower second temperature when fluid is not being withdrawn from the buffer storage reservoir to fill a tank.

Method and apparatus for autonomously fueling machinery operating at fracking sites. Apparatus includes a main tank with a plurality of fuel lines individually coupled to the fuel tank. Pumps are connected to some of the fuel lines. Pump outputs are coupled to hoses extending to the machinery tanks to be refueled. The apparatus further includes a cap detachably connected to the hoses and machinery tanks. The fuel tank includes an intake filter capable of blocking approximately 10 micron contaminants with about 250 gallon per minute flow. The methodology of the present invention includes measuring the duration of machinery tank fuelings and the interval between fuelings. A first alarm is generated if the duration of fuelings is longer than a first interval. A second alarm is generated if the interval between fuelings is longer than a second interval.

Method and apparatus for autonomously fueling machinery operating at fracking sites. Apparatus includes a main tank with a plurality of fuel lines individually coupled to the fuel tank. Pumps are connected to some of the fuel lines. Pump outputs are coupled to hoses extending to the machinery tanks to be refueled. The apparatus further includes a cap detachably connected to the hoses and machinery tanks. The fuel tank includes an intake filter capable of blocking approximately 10 micron contaminants with about 250 gallon per minute flow. The methodology of the present invention includes measuring the duration of machinery tank fuelings and the interval between fuelings. A first alarm is generated if the duration of fuelings is longer than a first interval. A second alarm is generated if the interval between fuelings is longer than a second interval.

An example fuel cap assembly includes a fuel cap, a sensor element extending from the fuel cap, and a fuel tube extending from the fuel cap next to the sensor element. The fuel tube includes an outlet end having at least one side-diverting fuel outlet that extends through a sidewall of the fuel tube. A fuel cap assembly kit and method of filling a fuel tank are also disclosed.

A fuel delivery system having a base, a fuel inlet configured to receive fuel from a secondary fuel supply, a fuel outlet configured to deliver fuel to a machine, a filter assembly and a coalescer configured to filter the fuel, a fuel controller configured to regulate pressure of the fuel that will be delivered to a machine, a boost pump assembly and a main pump assembly configured to pressurize the fuel.