AU2021245243B2

AU2021245243B2 - System and method for delivering proppant to a blender

Info

Publication number: AU2021245243B2
Application number: AU2021245243A
Authority: AU
Inventors: Peter Glynn; Joshua Oren
Original assignee: Oren Technologies LLC
Current assignee: Oren Technologies LLC
Priority date: 2015-09-11
Filing date: 2021-10-08
Publication date: 2022-12-08
Anticipated expiration: 2036-09-09
Also published as: MX2023004301A; CA2996003A1; BR112018004581A2; AU2016318965A1; CA2996003C; BR112018004581B1; MX2018002911A; AU2021245243A1; CO2018002213A2; WO2017044680A1

Abstract

[0039] A system for conveying proppant includes a conveyor assembly having a conveyor belt that receives proppant from one or more containers having proppant stored therein. The system also includes a conveyor auxiliary unit connected to an end of the conveyor assembly having one or more joints to enable expansion and collapse of the conveyor belt from the conveyor assembly. The system further includes a proppant chute to direct the proppant from the conveyor belt into a blending hopper, the proppant chute being positioned at a higher elevation than an inlet of the blending hopper. \DE-O074686/004102 -1267551 vL 18142447_1 (GHMatters) P43887AU01

Description

SYSTEM AND METHOD FOR DELIVERING PROPPANT TO A BLENDER BACKGROUND

1. Related Applications

[0001] This application is a PCT, and claims priority to U.S. Non-Provisional Application

No. 15/260,371, filed September 9, 2016, titled "System and Method for Delivering Proppant To

A Blender," which is continuation-in-part, and claims priority to, and the benefit of, U.S. Non

Provisional Application No. 14/854,622, filed September 15, 2015, titled "System and Method for

Delivering Proppant To A Blender," which claims priority to, and the benefit of U.S. Provisional

Application No. 62/217,117, filed September 11, 2015, titled "System and Method for Delivering

Proppant To A Blender," each of which are incorporated herein by reference in their entireties.

SUMMARY

[0002] In an embodiment, there is provided a system for conveying proppant. The system

may include a conveyor assembly having a conveyor belt and a control system to measure the flow

of proppant into a blending hopper, the conveyor belt receiving proppant from one or more

containers having proppant stored therein distributed along the conveyor assembly and carrying

the proppant away from the one or more containers. The system also includes a conveyor

auxiliary unit connected to an end of the conveyor assembly having one or more joints to enable

expansion and collapse of the conveyor belt from the conveyor assembly so as further to extend

along the conveyor auxiliary unit. The system further includes a proppant chute positioned at an

end of the conveyor auxiliary unit, the proppant chute having an opening to direct the proppant

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19191977_1 (GHMatters) P43887AU01 from the conveyor belt into the blending hopper, the proppant chute being positioned at a higher elevation than an inlet of the blending hopper such that the proppant exits the proppant chute into the blending hopper via gravity feed.

[0003] In another embodiment, a system to convey proppant includes a conveyor assembly to

receive and support one or more containers having proppant stored therein. The system also

includes a conveyor belt positioned beneath the one or more containers to receive the proppant

dispensed from the one or more containers and to transport the proppant away from the one or

more containers. Moreover, the system includes a conveyor auxiliary unit positioned at an end of

the conveyor asssembly, the conveyor auxiliary unit having an inclined section that increases a

vertical position of the conveyor belt relative to a ground plane, one or more joints positioned

along the conveyor assembly to enable expansion and compaction of the conveyor belt, and a

proppant chute positioned at the end of the conveyor assembly, the proppant chute moveable to

direct the proppant away from the conveyor belt. Additionally, the system includes a blending

hopper positioned proximate the conveyor assembly to receive and mix the proppant with one or

more proppant fluids for injection into a well. The system also includes a tub positioned at an

inlet of the blending hopper between the blending hopper and the proppant chute, the tub being

removable from the blending hopper and positioned at a lower elevation than the proppant chute

when coupled to the blending hopper.

In a further embodiment, a method includes dispensing proppant from a container

positioned on a conveyor assembly onto a conveyor belt. The method also includes transporting

the proppant, via the conveyor belt, away from the container and toward a conveyor auxiliary unit.

The method also includes adjusting an elevation of the conveyor belt via a joint of a conveyor

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19191977_1 (GHMatters) P43887AU01 auxiliary unit coupled to the conveyor assembly, the conveyor auxiliary unit raising or lowering the elevation of the conveyor belt relative to a ground plane.

[0004] The method further includes transferring the proppant to a proppant chute such that

the elevation of the proppant on the conveyor belt is increased. The method also includes

directing the proppant into a blending hopper via gravity feed.

BRIEF DESCRIPTION OF THE DRAWINGS

[0005] FIG. 1 is a rear perspective view of a blender unit, in accordance with embodiments

of the present disclosure;

[0006] FIG. 2 is a side elevational view of the blender unit of FIG. 1, in accordance with

embodiments of the present disclosure;

[00071 FIG. 3 is a top plan view of the blender unit of FIG. 1, in accordance with embodiments

of the present disclosure;

[0008] FIG. 4 is a side elevational view of a blender unit and proppant delivery system, in

accordance with embodiments of the present disclosure;

[0009] FIG. 5 is a partial side elevational view of a conveyor auxiliary unit, in accordance

with embodiments of the present disclosure;

[0010] FIG. 6 is a partial side elevational view of a conveyor auxiliary unit, in accordance

with embodiments of the present disclosure;

[0011] FIG. 7 is a partial side elevational view of a chute of a conveyor assembly, in

accordance with embodiments of the present disclosure;

[0012] FIG. 8 is a rear perspective view of a chute positioned over a blending hopper, in

accordance with embodiments of the present disclosure; and

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19191977_1 (GHMatters) P43887AU01

[00131 FIG. 9 is a rear perspective view of a chute positioned over a blending hopper, in

accordance with embodiments of the present disclosure.

DETAILED DESCRIPTION

[0014] The foregoing aspects, features, and advantages of the present disclosure will be

further appreciated when considered with reference to the following description of embodiments

and accompanying drawings. In describing the embodiments of the disclosure illustrated in the

appended drawings, specific terminology will be used for the sake of clarity. However, the

disclosure is not intended to be limited to the specific terms used, and it is to be understood that

each specific term includes equivalents that operate in a similar manner to accomplish a similar

purpose.

[0015] When introducing elements of various embodiments of the present disclosure, the

articles "a", "an", "the", and "said" are intended to mean that there are one or more of the elements.

The terms "comprising", "including", and "having" are intended to be inclusive and mean that there

may be additional elements other than the listed elements. Any examples of operating parameters

and/or environmental conditions are not exclusive of other parameters/conditions of the disclosed

embodiments. Additionally, it should be understood that references to "one embodiment", "an

embodiment", "certain embodiments", or "other embodiments" of the present disclosure are not

intended to be interpreted as excluding the existence of additional embodiments that also

incorporate the recited features. Furthermore, reference to terms such as "above", "below",

"upper", "lower", "side", "front", "back", or other terms regarding orientation or direction are

made with reference to the illustrated embodiments and are not intended to be limiting or exclude

other orientations or directions.

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19191977_1 (GHMatters) P43887AU01

[00161 FIGS. 1-3 illustrate a proppant blender unit 10 mounted on a trailer 12 for ease of

transport. In operation, the blender unit 10 mixes proppant at a well site prior to introduction of

the proppant into a well during a hydraulic fracturing operation. In the illustrated embodiment,

the blender unit 10 has a tub 14 for receiving proppant from a conveyor (not shown). Asshown,

the tub 14 is arranged to receive the proppant and includes walls to enable large volumes of

proppant to be stored in the tub 14 before the proppant is transported along the blender unit 10.

For example, in certain embodiments, proppant may be loaded into the tub 14 and gradually moved

along the blender unit 10 as the proppant is transported via one or more moving devices, such as

augers. As illustrated, an inlet of a blending hopper 18 is arranged at a higher elevation than the

tub 14. As a result, the proppant positioned in the tub 14 is lifted to a higher elevation to enable

deposition into the blending hopper 18. In the illustrated embodiment, auger units 20 extend from

the tub 14 to the inlet 16 and move and direct the proppant out of the tub 14. Furthermore, as

shown in FIG. 1, the auger units 20 include an auger housing 22 that encases an auger screw (now

shown). As the auger screw turns, the surfaces of the screw lift the proppant from the tub 14,

through the auger housing 22 and upward to the inlet 16 of the blending hopper 18. At the inlet

16 of the blending hopper 18, the proppant is expelled from the auger housing 22 into the inlet 16

through a proppant chute 24.

[00171 Fracking proppant is a highly dense, often very hard and/or coarse material. As a

result, the auger screws of the auger units 20 can quickly become worn and ineffective. For

example, the friction between the proppant and the auger screws may wear down the helical sweep

of the screw, thereby reducing the amount of proppant the auger screws can transport. In this

manner, the blending of proppant has reduced efficiencies that may lead to delays in production

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19191977_1 (GHMatters) P43887AU01 and fracturing operations at a well site. Moreover, because the auger screws maybe worn quickly, stoppages in work may be frequent to replace the auger screws. Again, stoppages to replace the auger screws reduce the efficiencies of the fracturing operations, thereby increasing costs.

[0018] Embodiments of the present disclosure include a conveyor auxiliary unit used in

conjunction with a system for delivering proppant. As will be described below, by utilizing the

conveyor auxiliary unit, the tub 14 may be positioned directly above the inlet 16 of the blending

hopper18. Asa result, use of the auger units 20 can be eliminated, thereby improving efficiencies

at the well site.

[0019] FIG. 4 is a schematic side elevational view of an embodiment of a proppant delivery

system 100 arranged proximate a well site having a proppant blender unit 110. It should be

appreciated that certain features of the proppant delivery system 100 have been omitted for clarity

and conciseness in the foregoing discussion. The proppant delivery system 100 utilizes modular,

stackable, sealed proppant containers 132 to transport proppant for delivery, dispersion, and use at

thewellsite. For example, the proppant containers 132 maybe loaded onto trucks and transported

to the well site from a sand mine, transloading facility, or the like. Moreover, the modular, pre

loaded boxes reduce demurrage typically experienced at well sites due to unloading sand from

bulk pneumatic containers. It will be appreciated that, in certain embodiments, features of the

proppant delivery system enable the efficient loading, unloading, and transportation of proppant

at the well site.

[0020] In the illustrated embodiment, the proppant delivery system 100 includes a conveyor

assembly 128 having a conveyor belt 130 positioned to underlie the containers 132. In certain

embodiments, the conveyor assembly 128 includes a surface 136 to receive and support the

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19191977_1 (GHMatters) P43887AU01 containers 132 in a side-by-side configuration. As a result, the containers 132 can be positioned above the conveyor belt 130 to enable gravity feed of the proppant out of the containers 132. The conveyor belt 130 collects sand from the proppant containers 132 directly from the outlets (not shown) in the bottom of the respective containers 132. As the conveyor belt 130 receives the proppant, the conveyor belt 130 transports the proppant along the length of the surface 136 to an elevated section 138 of the conveyor assembly 128. As will be described below, the conveyor belt 130 continues through the elevated section 138 and extends to a chute 126 arranged above the inlet 116 of the tub 114. In the illustrated embodiment, the elevated section 138 is at an elevation higher than an elevation of the conveyor belt 130 when the conveyor belt 130 is positioned below the containers 132. That is, the elevated section 138 is higher than the surface 136. In this manner, the conveyor belt 130 can transport the proppant to the chute 126 for deposition into the tub 114 and the blending hopper 118 without utilizing the auger units 20 because the tub 114 can gravity feed the proppant into the inlet 116 of the blending hopper 118.

[0021] In the illustrated embodiment, the conveyor assembly 128 is collapsible and

extendable by use of the conveyor auxiliary unit 140. That is, the conveyor auxiliary unit 140

enables expansion and collapse of the conveyor belt 130. As shown, the conveyor auxiliary unit

140 is coupled to the conveyor assembly 128 via one or more joints 134. In certain embodiments,

the joint 134 is coupled to the conveyor assembly 128 via a hinged and/or ball-and-socket

configuration. That is, the joint 134 enables the conveyor auxiliary unit 140 to pivot about an

axis. In the illustrated embodiment, the conveyor auxiliary unit 140 includes the chute 126

positioned at a far end 142. The chute 126 is coupled to the conveyor auxiliary unit 140 via a

pivoting connection 144 driven by an actuator 146 coupled to a control system 148. As will be

-7

19191977_1 (GHMatters) P43887AU01 described below, the actuator 146 enables the chute 126 to rotate about an axis, thereby facilitating different positions of the chute 126 to accommodate a variety of well site configurations.

[0022] In certain embodiments, the joint 134 enables compact storage of the conveyor

assembly 128 and/or the conveyor auxiliary unit 140 while the proppant delivery system 100 is

not in use. Moreover, the joint 134 enables the conveyor auxiliary unit 140 to collapse during

transportation of the proppant delivery system 100, thereby reducing the height of the proppant

delivery system for travel along roadways having height and/or weight restrictions for commercial

loads. Moreover, the joint 134 enables use of the conveyor assembly 128 and the conveyor

auxiliary unit 140 with both elevated blending hoppers 118 and conventional blending units where

the hopper is close to the ground. As such, removal of the conveyor auxiliary unit 140 will not

be necessary when utilizing multiple different blending units on one well site, thereby improving

efficiencies and increasing the variety of equipment suitable for use with the proppant delivery

system 100.

[0023] In certain embodiments, the joint 134 includes a slot and pin connection 152 to enable

movement of the joint 134 (e.g., rotation of the conveyor auxiliary unit 140 about the axis) a

predetermined distance. For example, the pin fits within the slot and travels the circumferential

difference allowed by the slot. In this manner, over-rotation of the conveyor auxiliary unit 140

may be reduced, thereby improving longevity and decreasing wear and tear on the equipment.

[0024] Furthermore, in certain embodiments, the tub 114 may be removable from the blending

hopper 118 to also enable transportation along roadways. For example, the tub 114 may be

removed and stored when the proppant blender unit 110 is not in operation. In certain

embodiments, the tub 114 may be stored on the trailer 12 of the proppant blender unit 110 to keep

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19191977_1 (GHMatters) P43887AU01 the tub 114 close by the blending hopper 118 to reduce the likelihood of losing or damaging the tub 114.

[0025] As described above, the control system 148 may be utilized to monitor and control

operations of the proppant delivery system 100. For example, one or more sensors 150 may be

utilized to measure the flow of proppant into the blending hopper 118, measure the weight of the

proppant in the tub 114 and/or the containers 132, measure a speed of the conveyor belt 130,

measure the rate of discharge from the containers 132, measure a proppant level in the tub 114, or

the like. As will be known by one skilled in the art, the position of these sensors 150 and the

types of sensors used may vary based on the application. For example, a weight sensor may be

used to measure the weight of proppant in the tub 114, and thereby the flow of proppant into the

blending hopper 118, while a speed sensor may be used to monitor the speed of the conveyor belt

130.

[0026] FIG. 5 is a partial schematic side elevational view of the conveyor assembly 128 and

the conveyor auxiliary unit 140. In the illustrated embodiment, a cover 160 arranged about the

conveyor assembly 128 and the conveyor auxiliary unit 140 is partially removed for clarity. In

the illustrated embodiment, the conveyor belt 130 extends along the conveyor assembly 128 and

the conveyor auxiliary unit 140 toward the chute 126. As shown, the conveyor belt 130 in the

illustrated embodiment is an endless conveyor that loops around at each end, thereby facilitating

transportation of the proppant from the containers 132. The proppant is transported along the

conveyor belt 130 and deposited into the tub 114 positioned above the inlet 116 of the blending

hopper118. In this manner, the auger units 20 maybe eliminated, thereby improving efficiencies

of fracturing operations.

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19191977_1 (GHMatters) P43887AU01

[00271 As illustrated, the joint 134 is a ball-and-socket connection in which the conveyor

auxiliary unit 140 is coupled to the conveyor assembly 128 and pivotable about an axis 162. That

is, the conveyor auxiliary unit 140 can increase its elevation relative to a ground plane by rotating

about the axis 162 in a first direction 164 and decrease its elevation relative to the ground plane by

rotating about the axis 162 in the second direction 166. As illustrated, the joint 162 includes a

fastener 168 (e.g., a pin, a bolt, a rod, a geared tooth, etc.) to rotatably couple the conveyor auxiliary

unit 140 to the conveyor assembly 128. Moreover, as illustrated, the conveyor auxiliary unit end

170 acts as the ball and the conveyor assembly end 172 acts as the socket to enable rotation of the

conveyor auxiliary unit 140 about the axis 162. That is, the conveyor auxiliary unit end 170 may

fit into the conveyor assembly end 172. However, it should be appreciated, that in other

embodiments the joint 134 maybe of a different type. For example, the joint 134 maybe a hinge

joint, a screw joint, a saddle joint, a plane joint, an ellipsoid joint, a universal joint, an elbow joint,

orthelike. It should be appreciated that the joint 134 is utilized to facilitate a rotatable connection

between the conveyor assembly 128 and the conveyor auxiliary unit 140, and therefore, a variety

of different connections may be utilized without departing from the scope of the present disclosure.

As a result, the conveyor auxiliary unit 140 may be utilized to position the chute 126 over the tub

114 to enable gravity feed of the proppant into the blending hopper 118.

[00281 In the illustrated embodiment, the control system 148 is communicatively coupled to

a control hub 174. However, it should be appreciated that, in certain embodiments, the control

hub 174 may not be utilized. For example, all actuators, drivers, sensors, and the like in the

system may be communicatively coupled directly to the control system 148. As described above,

in certain embodiments, the actuator 146 is arranged proximate the pivoting connection 144 to

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19191977_1 (GHMatters) P43887AU01 enable movement of the chute 126 to accommodate different configurations at a well site.

Moreover, in certain embodiments, the control hub 174 may be communicatively coupled to the

joint 134 to direct movement of the joint about the axis 162. However, as described above, the

joint 134 may be in direct communication with the control system 148. For example, the joint

162 may include a drive unit 176, such as an electric motor and gear unit, to drive movement of

the conveyor auxiliary unit 140 about the axis 162. In this manner, an operator can control the

position of the conveyor auxiliary unit 140 from a distance, thereby reducing the likelihood of

interference with ongoing fracturing operations. However, in certain embodiments, the position

of the conveyor auxiliary unit 140 may be manually operated. Additionally, the fastener 168 may

include stops to block rotation of the conveyor auxiliary unit 140. Moreover, the stops may be

utilized to block over-rotation of the conveyor auxiliary unit 140.

[0029] FIG.6 is a partial schematic side elevational view of an embodiment of the conveyor

auxiliary unit 140 moving in the first direction 164 to thereby increase an elevation of the chute

126 relative to the ground plane. As shown, the conveyor auxiliary unit 140 rotates in the first

direction 164 about the axis 162 to raise the elevation of the chute 126 relative to the ground plane

and above the tub 114. In this manner, proppant blender units 110 with elevated blending hoppers

118 may receive proppant via the chute 126 to a tub 114 arranged directly over the blending hopper

118, thereby eliminating the need for the auger units 20 and improving overall efficiency and

reliability of fracturing operations. In the illustrated embodiment, the slot and pin connection 152

restricts rotation of the conveyor auxiliary unit 140. In certain embodiments, the drive unit 176

controls movement of the conveyor auxiliary unit 140 via the control system 148. In certain

embodiments, the stops are operable with the drive unit 176 to block over-rotation of the conveyor

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19191977_1 (GHMatters) P43887AU01 auxiliary unit 140. However, in other embodiments, the conveyor auxiliary unit 140 may be manually moved to rotate about the axis 162. As illustrated, even when the elevation of the chute

126 is increased, relative to the ground plane, the conveyor belt 130 is still arranged within the

conveyor assembly 128 and the conveyor auxiliary unit 140 such that the proppant can be delivered

to the blending hopper 118 via the chute 126.

[00301 FIG. 7 is a partial schematic side elevational view of the chute 126 directing proppant

into the tub 114 arranged above the blending hopper 118 through an opening in the chute 126. As

illustrated, the proppant is conveyed along the conveyor belt 130 toward the chute 126. From the

chute 126, the proppant is gravity fed downward into the tub 114 arranged over the inlet 116 of

the blending hopper 118. As described above, by positioning the tub 114 over the blending

hopper 118 the use of the auger units 20 may be eliminated, thereby reducing the likelihood of

work stoppages for repair and replacement of the auger screws.

[00311 In the illustrated embodiment, the sensor 150 is arranged proximate the tub 114 to

monitor the weight of the proppant in the tub 114. For example, the sensor 150 may include a

weight sensor that is in communication with the control system 148 (e.g., via a wired or wireless

communication system), such as via BLUETOOTH, IEEE 802.11 networks, cellular networks,

Ethernet, USB, or the like. In certain embodiments, the control system 148 may receive

information from the sensor 150 (such as the weight of proppant in the tub 114) and change

operation of the proppant delivery system 110 based on the information. For example, if the

weight of the proppant in the tub 114 is over some predetermined threshold, the control system

150 may be utilized to slow the speed of the conveyor belt 130 and/or slow the drainage of proppant

from the containers 132 to prevent overfilling the tub 114. Moreover, if the weight of the proppant

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19191977_1 (GHMatters) P43887AU01 in the tub 114 is too low, the control system 148 may speed up the conveyor belt 130, thereby directing more proppant to the tub 114. Similarly, other sensors 150 may be utilized in a similar manner to control operations of the proppant delivery system 100. For example, the speed of the conveyor 130, the weight of the proppant in the tub 114, the level in the tub 114, the rate of discharge from the containers 132, and the like may all be utilized to determine an efficient discharge and blending pace, thereby improving efficiencies and reducing undue strain on associated support equipment.

[0032] As illustrated in FIG. 7, the chute 126 is directed toward the tub 114 via the pivoting

connection 144, controlled by the actuator 146 communicatively coupled to the control system

148. In certain embodiments, the actuator 146 may be coupled to the control hub 174. The

actuator 146 drives rotational movement of the chute 126 to thereby direct the proppant to a desired

location. In the illustrated embodiment, the desired location is the tub 114. However, it should

be appreciated that the chute 126 may direct the proppant directly into the blending hopper 118,

or any other suitable location.

[0033] FIG. 8 is a rear perspective view of an embodiment of the chute 126 directing the

proppant into the tub 114. As illustrated, the proppant is directed along the conveyor belt 130

through the conveyor assembly 128 and the conveyor auxiliary unit 140 toward the chute 126 for

deposition within the tub 114. As described above, the chute 126 is arranged proximate the

pivoting connection 144 to enable rotation about an axis 190 via the actuator 146. Rotation of the

chute 126 enables operators to select the location of the proppant within the tub 114, thereby

improving operating procedures. For example, if the operator notices that proppant is collecting or

piling in a particular area of the tub 114, the operator can rotate the chute 126 (e.g., via the control

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19191977_1 (GHMatters) P43887AU01 system 148) to change the location of proppant deposition within the tub 114. As a result, operations are not halted to adjust the proppant within the tub 114.

[0034] In the illustrated embodiment, the pivoting connection 114 includes a slot 192 that

receives a pin 194 to enable rotation of the chute 126 a predetermined distance about the axis 190.

That is, the pin 194 extends into the slot 192 and travels a circumferential distance enabled by the

slot 192. As described above, the actuator 146 may drive movement of the chute 126, and thereby

drive movement of the pin 194 within the slot 192. However, it should be appreciated that other

methods may be utilized to control the pivoting and/or rotation of the chute 126. For example,

stops may be utilized to block rotation of the chute 126. In this manner, via the actuator 146, the

chute 126 may rotate about the axis 190 in a first direction 196 and a second direction 198.

Moreover, in certain embodiments, the chute 126 may be manually operated.

[00351 FIG. 9 is a rear perspective view of the chute 126 directing the proppant into the tub

114. As shown, compared to FIG. 8, the chute 126 has rotated in the first direction 196 such that

the pin 194 is arranged at the end of the slot 192. That is, in the illustrated embodiment, the chute

126 has rotated as far in the first direction 196 as enabled by the slot 192. As described above,

the actuator 146 drives movement of the chute 126 about the axis 190. In this manner, the

proppant can be directed into the tub 114 such that the proppant does not pile up at one location,

thereby enabling more efficient, smooth operation of the fracturing process. For example, if the

proppant were to pile up in one location in the tub, the sensor 150 monitoring the level in the tub

114 may inadvertently send a signal to the control system 148 indicative of the high level, thereby

interrupting operations. However, because of the pivoting chute 126, the proppant may be evenly

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19191977_1 (GHMatters) P43887AU01 distributed within the tub 114, thereby reducing the likelihood of the proppant piling up in one location.

[00361 As described above, the proppant delivery system 100 may be utilized with the

proppant blender unit 110 to facilitate hydraulic fracturing operations. For example, proppant

may be dispensed from the containers 132 onto the conveyor belt 130. The containers 132 are

positioned on the conveyor assembly 128, in the illustrated embodiment. As the proppant is

deposited on the conveyor belt 130, the proppant is transported, via the conveyor belt 130, away

from the containers 132 and toward the conveyor auxiliary unit 140. Thereafter, the proppant is

transferred from the conveyor belt 130 to the chute 126 such that the elevation of the proppant on

the conveyor belt is increased. In other words, the proppant is transported along the elevated

section 138 such that the elevation of the proppant is increased relative to the ground plane. Next,

the proppant is directed into the blending hopper 118 via gravity feed. For example, the chute

126 and conveyor auxiliary unit 140 may position the proppant at an elevation greater than the

blending hopper 118 and/or the tub 114. As a result, the proppant can be gravity fed from the

chute 126 into the tub 114 and/or the blending hopper 118, thereby eliminating the use of the auger

units 20. Moreover, in certain embodiments, the sensors 150 positioned about the system may be

utilized to control operations via the control system 148. For example, the flow rate of the

proppant to the blending hopper 118 can be adjusted via the control system 148 based on feedback

from the sensor 150 monitoring the weight of the proppant in the tub 114. Moreover, the speed

of the conveyor belt 130 may be adjusted based on feedback from the one or more downstream

sensors 150 arranged along the system. In this manner, the control system 148, based on feedback

from the various sensors 150, may control delivery of proppant to the blending hopper 118.

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19191977_1 (GHMatters) P43887AU01

[0037] This application is a PCT, and claims priority to U.S. Non-Provisional Application No.

/260,371, filed September 9, 2016, titled "System and Method for Delivering Proppant To A

Blender," which is continuation-in-part, and claims priority to, and the benefit of, U.S. Non

[0038] The foregoing disclosure and description of the disclosed embodiments is illustrative and

explanatory of the embodiments of the invention. Various changes in the details of the illustrated

embodiments can be made within the scope of the appended claims without departing from the

true spirit of the disclosure. The embodiments of the present disclosure should only be limited by

the following claims and their legal equivalents.

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19191977_1 (GHMatters) P43887AU01

Claims

1. A system for conveying proppant, the system comprising:

a conveyor assembly having a conveyor belt and a control system to measure the flow of

proppant into a blending hopper, the conveyor belt receiving proppant from one or more

the proppant away from the one or more containers;

a conveyor auxiliary unit connected to an end of the conveyor assembly having one or

more joints to enable expansion and collapse of the conveyor belt from the conveyor assembly so

as further to extend along the conveyor auxiliary unit; and

a proppant chute positioned at an end of the conveyor auxiliary unit, the proppant chute

having an opening to direct the proppant from the conveyor belt into the blending hopper, the

proppant chute being positioned at a higher elevation than an inlet of the blending hopper such

that the proppant exits the proppant chute into the blending hopper via gravity feed.

2. The system of claim 1, comprising a tub positioned upstream of the inlet of the blending

hopper to direct the proppant from the proppant chute into the blending hopper, wherein the tub

is at a lower elevation than the proppant chute.

3. The system of claim 2, wherein the tub is removable from the blending hopper to reduce

the vertical height of the blending hopper to facilitate transportation of the blending hopper.

4. The system of any one of claims I to 3, wherein the one or more joints enables the

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19191977_1 (GHMatters) P43887AU01 conveyor belt to expand to a higher elevation than the blending hopper while the conveyor assembly is positioned close to a ground plane, thereby enabling gravity feed of proppant from the conveyor belt to the blending hopper.

5. The system of any one of claims 1 to 4, wherein the conveyor belt collapses at the one or

more joints to decrease a length of the conveyor belt for compact storage during transportation of

the conveyor system.

6. The system of any one of claims I to 5, wherein the one or more containers comprise a

plurality of containers arranged in a side-by-side configuration along a length of the conveyor

assembly.

7. The system of any one of claims I to 3, wherein a vertical position of the proppant chute

relative to a ground plane is changed as the conveyor belt is expanded or collapsed at the one or

morejoints.

8. The system of any one of claims I to 7, wherein the control system comprises one or

more sensors for measuring a weight of the proppant, a speed of the conveyor belt, a rate of

discharge from the one or more containers, or a combination thereof.

9. A system to convey proppant, the system comprising:

a conveyor assembly to receive and support one or more containers having proppant

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19191977_1 (GHMatters) P43887AU01 stored therein; a conveyor belt positioned beneath the one or more containers to receive the proppant dispensed from the one or more containers and to transport the proppant away from the one or more containers; a conveyor auxiliary unit positioned at an end of the conveyor system, the conveyor auxiliary unit having an inclined section that increases a vertical position of the conveyor belt relative to a ground plane; one or more joints positioned along the conveyor assembly to enable expansion and compaction of the conveyor belt; a proppant chute positioned at the end of the conveyor auxiliary unit, the proppant chute moveable to direct the proppant away from the conveyor belt; a blending hopper positioned proximate the conveyor assembly to receive and mix the proppant with one or more proppant fluids for injection into a well; and a tub positioned at an inlet of the blending hopper between the blending hopper and the proppant chute, the tub being removable from the blending hopper and positioned at a lower elevation than the proppant chute when coupled to the blending hopper.

10. The system of claim 9, comprising a control system to measure a flow rate of proppant to

the blending hopper via one or more sensors.

11. The system of claim 10, wherein a conveyor belt speed, a container dispersion rate, or a

combination thereof is adjusted via the control system based on an output from the one or more

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19191977_1 (GHMatters) P43887AU01 sensors indicative of the flow rate.

12. The system of claim 10 or claim 11, wherein the one or more sensors is a weight sensor

positioned in the tub to monitor the weight of proppant in the tub as the proppant flows to the

blending hopper.

13. The system of claim 10 or claim 11, wherein the one or more sensors is a level sensor

positioned in the tub to monitor a quantity of proppant in the tub as the proppant flows to the

blending hopper.

14. The system of any one of claims 10 to 13, wherein the control system adjusts one or more

parameters of the conveyor system to maintain a substantially constant quantity of proppant in

the tub during wellbore operations.

15. A method comprising:

dispensing proppant from a container positioned on a conveyor assembly onto a conveyor

belt;

transporting the proppant, via the conveyor belt, away from the container and toward a

conveyor auxiliary unit;

adjusting an elevation of the conveyor belt via a joint of a conveyor auxiliary unit

coupled to the conveyor assembly, the conveyor auxiliary unit raising or lowering the elevation

of the conveyor belt relative to a ground plane;

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19191977_1 (GHMatters) P43887AU01 transferring the proppant to a proppant chute such that the elevation of the proppant on the conveyor belt is increased; and directing the proppant into a blending hopper via gravity feed.

16. The method of claim 15, comprising directing the proppant into a tub positioned between

the proppant chute and the blending hopper, the tub being removable from the blending hopper

and having a lower elevation than the proppant on the conveyor belt.

17. The method of claim 16, comprising adjusting a flow rate of the proppant to the blending

hopper via a control system based on feedback from a weight sensor positioned in the tub, the

weight sensor outputting a signal to the control system indicative of a quantity of proppant

flowing to the blending hopper.

18. The method of claim 15 or claim 16, comprising adjusting a flow rate of the proppant

from the container via a control system based on feedback from one or more sensors positioned

downstream of the container.

19. The method of claim 18, comprising adjusting a speed of the conveyor belt via feedback

from the one or more sensors.

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19191977_1 (GHMatters) P43887AU01