Systems and methods for remotely controlling proppant discharge system
A proppant discharge system has a container with an outlet formed at a bottom thereof and a gate slidably affixed at the outlet so as to be movable between a first position covering the outlet and a second position opening the outlet, and a support structure having an actuator thereon. The container is removably positioned on the top surface of the support structure. The actuator is engageable with gate so as to move the gate from the first position to the second position. A conveyor underlies the container so as to receive proppant as discharged from the container through the outlet. The actuator and conveyor can be controlled remotely.
1. A method for controlled dispensing of proppant for a fracturing operation from a well bore at a fracturing site, the method comprising:
locating a plurality of proppant-filled containers at the fracturing site, each of the plurality of proppant-filled containers having a frame, an upper box section connected to the frame, a lower funnel section extending from the box section to an outlet adjacent a bottom region of the container and a gate movable between a first position covering the outlet and a second position opening the outlet, wherein each of the proppant-filled containers defines an interior volume storing the proppant therein;
receiving and inputting onsite inventory data into an operating system including box data and proppant details associated with a serial number for each of the proppant-filled containers at a control system, wherein the control system includes a processor, memory, and a remote control interface in communication with a conveyor controller via a communication network;
selecting a first container of the plurality of proppant-filled containers at the fracturing site based on the onsite inventory data of the first container, such that the box data associated with the serial number matches the onsite inventory data, for the fracturing operation stored in the memory of the control system;
positioning the first container on a top surface of a proppant delivery system to couple the gate of the first container with a first actuator affixed to a support structure, wherein the first actuator is operable to move the gate of the first container from the first position to the second position;
communicating a first control signal from the remote control interface to the conveyor controller for operating the first actuator to move the gate from the first position to the second position for gravity-feeding proppant from the first container into a hopper of the proppant delivery system;
communicating a second control signal from the remote control interface via the network to the conveyor controller for operating a second actuator to adjust a metering gate for gravity-feeding proppant from the hopper onto a conveyor of the proppant delivery system located below the metering gate, wherein the metering gate is adjustable to vary proppant discharged onto the conveyor;
communicating a third control signal from the remote control interface via the network to the conveyor controller for operating the conveyor at a conveyor speed to transport proppant along the conveyor to a blender hopper located at the end thereof;
measuring a process parameter indicating proppant discharged onto the conveyor;
determining a proppant consumption at the blender hopper based on the process parameter and the conveyor speed; and
varying at least one of the second control signal and the third control signal to adjust the proppant consumption based on a desired rate of proppant delivery.
2. The method as defined in claim 1 , further comprising:
varying the third control signal to alter the rate of proppant delivery.
3. The method as defined in claim 2 , further comprising:
generating data during conveyor operation, the data indicating one or more of container loading information, container unloading information, total proppant discharged within a given time range, and proppant discharge rate.
4. The method as defined in claim 1 , wherein each of the plurality of containers comprises a frame having a plurality of support bars associated with the pair of side walls and the pair of end walls of the container at locations between edges and corners of the container to enhance support of the pair of side walls and pair of end walls thereby to strengthen the container when fracking proppant is positioned therein.
5. The method as defined in claim 4 , wherein the container comprises a ten foot ISO container, and wherein the plurality of support bars extend along exterior surfaces of each of the pair of side walls and each of the pair of end walls.
6. The method as defined in claim 1 , wherein the remote control interface comprises a web-based platform to vary at least one of the second control signal and the third control signal.
7. The method as defined in claim 1 , wherein positioning the first container on a top surface of a proppant delivery system further comprises locating a pin extending from the gate into a receptacle affixed to the first actuator for operatively coupling the gate to the actuator.