The present disclosure relates generally to transport and discharge of materials using a container, and more particularly, to a configuration of a soft-side or flexible container for transporting materials to and discharge of materials at a site.
During the drilling and completion of hydrocarbon wells such as oil and gas wells, various wellbore treating fluids or other materials are used for any number of purposes or operations. For example, high viscosity gels are used to create fractures in oil and gas bearing formations to increase production. High viscosity and high density gels are also used to maintain positive hydrostatic pressure in the well while limiting flow of well fluids into earth formations during installation of completion equipment. High viscosity fluids are used to flow sand into wells during gravel packing and stimulation operations. The high viscosity fluids are normally produced by mixing dry powder and/or granular materials and agents with water at the well site as they are needed for a particular treatment. Systems for metering and mixing the various materials are normally portable, for example, skid- or truck-mounted, since they are needed for only short periods of time at a well site.
Materials required at a site are normally or generally transported to a site using a container in or on a transport unit or vehicle including but not limited to a commercial or common carrier tank truck, train, container on a trailer, a railcar or any other type of transport unit. Once the transport unit or vehicle with the container is at the site, the material (for example, bulk material) must be transferred or conveyed from the transport unit or vehicle into a blender or a supply tank for metering into a blender as needed. Traditionally, a storage or transport container is rigid with a height and weight making the container cumbersome or difficult to move about a site. For example, the exterior sides of the container may be at right angles even though the interior of the container forms a funnel or slope to provide for the flow or discharge of the material from the container. For a container that comprises a funnel to store the same amount of a material as generally rectangular container stores, the height of the container must be increased to account for space that is not utilized due to the interior funnel shape of the container. Increasing the height of a container may prevent the container from being transported on certain transportation units or on certain transportation pathways. Increasing the height of the container also increases the overall weight of the container. As transportation units and pathways generally have weight and/or height restrictions, an increase in the weight of container generally translates to less material that can be transported. A cost-effective, efficient and compact container is required to address the transportation, weight and cost issues associated with present systems.
Providing a more robust and efficient material transfer configuration is required to address the safety, productivity, environmental and cost issues associated with the present systems.
For a more complete understanding of the present disclosure and its features and advantages, reference is now made to the following description, taken in conjunction with the accompanying drawings, in which:
Illustrative embodiments of the present disclosure are described in detail herein. In the interest of clarity, not all features of an actual implementation are described in this specification. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation specific decisions must be made to achieve developers' specific goals, such as compliance with system related and business-related constraints, which will vary from one implementation to another. Moreover, it will be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of the present disclosure. Furthermore, in no way should the following examples be read to limit, or define, the scope of the disclosure.
Throughout this disclosure, a reference numeral followed by an alphabetical character refers to a specific instance of an element and the reference numeral alone refers to the element generically or collectively. Thus, as an example (not shown in the drawings), widget “1A” refers to an instance of a widget class, which may be referred to collectively as widgets “1” and any one of which may be referred to generically as a widget “1”. In the figures and the description, like numerals are intended to represent like elements.
Certain embodiments according to the present disclosure may be directed to systems and methods for efficiently managing transport and transfer of material or bulk material (for example, solid or mostly solid with liquid material). Material handling systems are used in a wide variety of contexts including, but not limited to, drilling and completion of hydrocarbon wells (for example, oil and gas wells), concrete mixing applications, agriculture and others. The disclosed embodiments are directed to systems and methods for safe, compact, efficient and cost-effective transfer of material to a job site or a hydrocarbon, well services or operation site, from a job site or a hydrocarbon, well services or operation site to a desired destination at, for example, to a blender, storage system or material handling system or both.
Existing container systems used to transport and store materials, including, but not limited to, bulk materials (for example, sand, proppant, plugging agents, gel particulate, or dry-gel particulate) that are used during the formation of treatment fluids, for example, for a stimulation operation, perforation operation or a plug operation are generally rigid. The material must not only be transported to a site but also transferred between transportation units, storage tanks, blenders, and other on-site components so that the material can be discharged as required by a given operation. As conventional containers are rigid, the containers maintain a specific or non-flexible shape which generally comprises a funnel-shaped interior so that the material discharged may be metered and completely exhausted from the container. As the container has a funnel-shaped interior, the height of the container is increased to compensate for the loss of material storage area. As the height of the container increases use of certain transportation units and pathways may not be utilizable. For example, conventional containers may require that the transportation unit comprise a double dropneck trailer whereas the present disclosure contemplates a container transportable by a standard flatbed trailer.
The self-funneling flexible container disclosed herein eliminates the shortcomings associated with existing rigid containers for materials or bulk materials. The height of the container is minimized as the self-funneling flexible containers may store material in an expanded position and discharging material while transitioning to or in a contracted position. Personnel, costs, operation time and machinery or equipment requirements may be reduced as the self-funneling flexible container stores and transports more material while having a lower and more stable height than existing rigid containers.
In one or more embodiments, one or more self-funneling flexible container systems may include a band configuration that allows the flexible outer surface of the container to transition to an expanded position due to the weight of the material and to transition to a contracted position as the material is discharged from the container. In this way, the container may store or transport more material by weight as a conventional container at a lower container height as space is not required to form a funnel or sloped surface on the interior of the container. The present disclosure provides a self-funneling flexible container system to efficiently and cost-effectively handle conveyance (including but not limited to transport, transfer, conveyance or discharge) of any desirable material having a solid, solid with a liquid constituency, any other material or substance conveyable via a self-funneling flexible container system, or any combination thereof including, but not limited to, any one or more of water, cement, cement powder, sand, proppant, gel particulate, diverting agent, stimulation fluid, slurry, mud, mortar, concrete, dry-gel particulate, liquid additives, any other material or combination thereof from one location to any desired destination or location at a site. Costs for conveyance of the material may be decreased as more material can be conveyed as the weight of the container is reduced given that the overall height of the container may be shortened as no funnel-shaped interior is required for discharge of the material. Additionally, material may be conveyed or transported on transportation pathways that may otherwise be unavailable to conventional containers, for example, due to height restrictions for certain transportation pathways. Additionally, safety is increased given the shortened height of the self-funneling flexible containers which allows for ease of balancing and also reduces the storage height as well as the height for placement for discharge of materials. In general, a lower height that a container must be raised to and lowered from increases safety. Further, as the self-funneling flexible containers may have a shortened height compared to conventional containers, the self-funneling flexible containers may be easily maneuvered to various locations or positions at a site.
Turning now to the drawings,
The blender unit 120 may include a hopper 122 and a mixer 124 (for example, mixing compartment). The blender unit 120 may also include a metering mechanism 126 for providing a controlled, for example, metered, flow of the material 101 to the mixer 124. In one or more embodiments, the blender unit 120 may not include the hopper 122 such that the outlet 118 of the support structure 114 may provide material 102 directly to the mixer 124.
An additional fluid or additive 104, for example, water, any other solid, liquid or other additive or material may be supplied to the mixer 124 (for example, mixing compartment) through an inlet flow line 128. In one or more embodiments, more than one inlet flow lines 128 may be coupled to the mixer 124 such that one or more additives 104 may be flowed to the mixer 124. The material 102 and the additive 104 may be mixed in mixer 124 to produce an output fluid 106, for example, a stimulation fluid, a mixture combining multiple types of proppant, proppant/dry-gel particulate mixture, sand/sand-diverting agents mixture, cement slurry, drilling mud, a mortar or concrete mixture, or any other fluid mixture for use at a site. The output fluid 106 may be flowed from the mixer 124 via one or more outlet flow lines 130. The outlet flow line 130 may be coupled to a pump for conveying the output fluid 106 to a desired location, for example, a hydrocarbon recovery well or wellhead. In one or more embodiments, the system 100 may be utilized in any number of operations including, but not limited to, a stimulation operation, agricultural application to dispense grain, feed, seed or any other mixture, substance or material and any other operation that requires storage and discharge of a material.
Self-funneling flexible container 112 may be elevated above an outlet location via the frame 116. The support structure 114 may be designed to elevate the self-funneling flexible container 112 above the level of a blender inlet, for example, blender hopper 122, mixing tub 124 or both, to allow the material 102 to gravity feed from the self-funneling flexible container 112 to the blender unit 120. As the self-funneling flexible container 112 is supported by frame 116, the material 102 may be discharged directly into the blender unit 120 via the gravity feed outlet 118 of the support structure 114.
While
Self-funneling flexible container 112 may comprise a flexible or pliable type of substance or material that is conformable to the material to be stored or discharged, for example, material 102, stored or otherwise deposited into the container 112. For example, self-funneling flexible container 112 may comprise fabric, plastic, nylon, rubber, leather, metal, a woven material, any other composition or any combination thereof. Self-funneling flexible container 112 is illustrated in
The bottom 208 of self-funneling flexible container 112 may comprise a gate or flap 220 from which material 102 may be released, discharged or otherwise emptied from the self-funneling flexible container 112 and one or more expandable portions 210. The gate 220 may comprise a metering gate that meters the discharge of material 102 from the self-funneling flexible container 112.
The one or more expandable portions 210 may comprise one or more bands (discussed below with respect to
The self-funneling flexible container 112 may couple to or otherwise be supported by the frame 250 using any one or more fastener assemblies 212. For example, one or more grommets 204 may be disposed or otherwise positioned about the top side or portion 204 of the self-funneling flexible container 112. For example, the grommets may be distributed, aligned or otherwise positioned across the top side or portion 204. In one or more embodiments, grommets 204 may comprise a hole or aperture, eyelet, seamed opening, any other grommet or opening or any combination thereof. One or more holders 206 distributed, aligned or otherwise positioned or disposed across the top support 240 may be coupled to the grommets 204. In one or more embodiments, holders 206 may comprise a hook, a fastener, a clip, a ring, any other fastening device, or combinations thereof.
In one or more embodiments, the top cover 320 covers all or a portion of the top side or portion 214 of the self-funneling flexible container 112. The top cover 320 may be coupled, engaged, secured, attached, or otherwise adhered to the side 202 or outer circumference of the self-funneling flexible container 112 by a fastener 310. Fastener 310 may comprise a zipper, a hook and eye, hook and loop, a hinge, string ties, stitching, adhesive, any other fastener or combination thereof. The top cover 320 may provide additional support and may prevent contamination of the surrounding environment by loose particles falling into or out of the self-funneling flexible container 112. In one or more embodiments, the top cover 320 may extend over any side 202.
In one or more embodiments, the self-funneling flexible container 112 comprises one or more straps 330 that circumnavigate or are otherwise secured or fastened to the self-funneling flexible container 112. The one or more straps 330 may be secured to the self-funneling flexible container 112 by one or more fasteners 212, by stitching or a seam 406, glue or adhesive, any other type of fastener or any combination thereof. For example, as illustrated in
The self-funneling flexible container 112 may be supported or transported by a support structure 410. Support structure 410 may comprise one or more lifting connectors 420. The one or more lifting connectors 420 may be positioned or disposed about the support structure 410. In one or more embodiments, the one or more lifting connectors 420 are disposed or positioned at two diagonal ends of the support structure 410, at or about each side of the support structure 410, in the middle of the support structure 410 any other location or position or any combination thereof. In one or more embodiments, the support structure 410 is a frame that supports the self-funneling flexible container 112. In one or more embodiments, the support structure 410 may be similar to frame 116 of
The self-funneling flexible container 112 may comprise a gate 602. Gate 602 may be a drawstring mechanism, a flap, a metering device, any other device that can transition between open and closed states such that, for example, a material 102 may be stored in or discharged from the self-funneling flexible container 112.
In one or more embodiments, a self-funneling flexible material container system at a hydrocarbon well services or operation site comprising a self-funneling flexible container, wherein the self-funneling flexible container comprises one or more bands disposed about a bottom of the self-funneling flexible container, and wherein each of the one or more bands has an elasticity, a frame coupled to the self-funneling flexible container, wherein the self-funneling flexible container transitions to an expanded position when a material is flowed into the self-funneling flexible container, and wherein the self-funneling flexible container transitions to a contracted position when the material is discharged from the self-funneling flexible container and wherein the bottom forms a chute when transitioned to the contracted position. In one or more embodiments the self-funneling flexible container comprises one or more straps coupled to the frame. In one or more embodiments, the one or more straps circumnavigate the self-funneling flexible material container. In one or more embodiments, the frame is a support structure, wherein the support structure couples the self-funneling flexible material container to a hoisting mechanism. In one or more embodiments, the one or more bands form at least one of an L-shaped, a radiating line pattern, an inverted L-shaped pattern and a curved pattern. In one or more embodiments, the one or more bands extend at least partially on at least one side of the self-funneling flexible container. In one or more embodiments, the self-funneling flexible container comprises a gate disposed at the bottom, wherein the material is discharged through the gate. In one or more embodiments, the self-funneling flexible container is partitionable.
In one or more embodiments, a self-funneling flexible container comprises a top portion, a bottom, a plurality of sides coupled to the top portion and the bottom, one or more bands disposed about the bottom, wherein each of the one or more bands has an elasticity, wherein the self-funneling flexible container transitions to an expanded when a material is flowed into the self-funneling flexible container, and wherein the self-funneling flexible container transitions to a contracted position when the material is flowed out of the self-funneling flexible container and wherein the bottom forms a chute when transitioned to the contracted position. In one or more embodiments, the self-funneling flexible container further comprises a frame coupled to at least the top portion. In one or more embodiments, the self-funneling flexible container further comprises one or more straps. In one or more embodiments, the self-funneling flexible container further comprises one or more fasteners that coupled the one or more straps to the self-funneling flexible container. In one or more embodiments, the one or more straps circumnavigate the self-funneling flexible container. In one or more embodiments, the one or more straps couple to a frame. In one or more embodiments, the one or more bands extend at least partially on at least one side of the plurality of sides. In one or more embodiments, the one or more bands form at least one of an L-shaped, a radiating line pattern, an inverted L-shaped pattern and a curved pattern. In one or more embodiments, the self-funneling flexible container comprises a gate disposed at the bottom, wherein the material is discharged through the gate.
In one or more embodiments, a method for discharging a material using a self-funneling flexible container comprises opening a gate disposed in a bottom of the self-funneling flexible container, discharging the material through the gate, transitioning one or more bands disposed on the bottom of the self-funneling flexible container to a contracted position as the material is discharged, wherein each of the one or more bands are elastic and forming a chute by the bottom as the one or more bands transition to the contracted position. In one or more embodiments, the method further comprises coupling the self-funneling flexible container to a support structure using one or more straps secured to the self-funneling flexible container. In one or more embodiments, the method further comprises hoisting the self-funneling flexible container to a height, wherein the hoisting comprises coupling the support structure to a hoisting mechanism. In one or more embodiments, the method further comprises flowing the material into the self-funneling flexible container, wherein flowing the material transitions the one or more bands from a contracted position to an expanded position.
Although the present disclosure and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the disclosure as defined by the following claims.
Filing Document | Filing Date | Country | Kind |
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PCT/US2018/057492 | 10/25/2018 | WO | 00 |