Operation system for wet fracturing sand well site

Abstract

The invention provides an operation system for a wet fracturing sand well site, which comprises a wet fracturing sand conveying device, a transportation device and sand mixing equipment, and is characterized in that the wet fracturing sand conveying device at least comprises a first conveying assembly and a second conveying assembly; the wet fracturing sand conveying device receives the wet fracturing sand conveyed by the conveying device through the second conveying assembly and conveys the wet fracturing sand to the sand mixing equipment through the first conveying assembly. According to the embodiment of the invention, the blanking of the wet fracturing sand transported by a plurality of transportation devices can be realized at the same time, the blanking efficiency is improved, and the wet fracturing sand is subjected to various treatments such as vibration and stirring in the transportation process of the wet fracturing sand, so that the condition that the wet fracturing sand is gathered due to relatively low water content is avoided, and the effect of subsequent fracturing operation is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of fracturing sand transportation, and more particularly, to an operating system for a wet fracturing sand well site. Background Art

[0002] The oil and gas industry commonly uses hydraulic fracturing to increase the production of hydrocarbon-producing wells, such as oil wells, gas wells, etc. Hydraulic fracturing, sometimes also called "fracking" or "hydrofracking", is the process of injecting a fracturing fluid into a wellbore. The fracturing fluid is typically a mixture of water, proppants (such as sand, fracturing sand, ceramics, etc.), and chemicals, to break underground geological formations and release hydrocarbon reserves. The fracturing fluid is pumped into the wellbore at a sufficient pressure to form fractures in the underground geological formation. Once in the wellbore, the pressurized fracturing fluid flows into the underground geological formation, fracturing the underground formation. The fracturing fluid may include water, various chemical additives, and proppants to facilitate the extraction of hydrocarbon reserves such as oil and gas. Proppants, such as fracturing sand, can prevent the fractures and cracks in the underground formation from closing and keep the formation open, allowing the hydrocarbon reserves to flow to the surface.

[0003] Hydraulic fracturing typically uses large amounts of sand (e.g., about 6000 to 7000 tons per well) to assist in well fracturing. Before being transported to the well site, the sand undergoes a processing process: (1) removing impurities; (2) drying the fracturing sand to meet fracturing transportation requirements; (3) making it suitable for metering into the mixing process using conventionally employed hydraulic fracturing process equipment (e.g., a fracturing blender) to produce a slurry or fracturing fluid. Mining and / or processing operators initially mine fracturing sand within sand deposits containing quartz grains having desired properties (e.g., relatively high crush strength and roundness). To meet fracturing standards, the operator processes the mined sand by washing the mined sand to remove impurities and then drying the sand to remove moisture. Then, the mining operator can further filter out sand grains that do not meet the specific size criteria for fracturing operations. Once the processing is complete, the operator loads and transports the fracturing sand using specialized railcars, trailers (e.g., hopper trailers and pneumatic containers), and trucks that protect the fracturing sand from environmental exposure to the well site, which may be hundreds of kilometers from the origin. The operator stores the dry sand at various points along the supply chain using silos, dome bins, and other large and expensive storage containers. Keeping the fracturing sand dry before mixing to form the fracturing fluid increases the operator's ability to reliably control and meter the flow of fracturing sand. In contrast, wet fracturing sand typically clumps together, resulting in less consistent flow and being more difficult to meter for fracturing purposes. However, drying, transporting, and storing large amounts of dry fracturing sand increases the financial, operational, and logistical costs associated with fracturing operations.

[0004] Existing conveying devices on well sites can often only perform blanking operations on the wet fracturing sand in one sand transport vehicle, resulting in low blanking efficiency. In addition, conventional sand mixing equipment is equipped with auger devices, which achieve the transportation of dry fracturing sand from equipment such as sand transport vehicles or sand storage tanks to the sand mixing tank of the sand mixing equipment through spiral movement. Generally, the fracturing sand has a certain humidity. When the water content in the wet fracturing sand is relatively high, since the wet fracturing sand has good fluidity, it can be transported by the auger; however, when the water content in the wet fracturing sand is relatively low, the poor fluidity of the wet fracturing sand causes it to easily aggregate together. Therefore, when the auger blade rotates in a closed space, there are situations where the auger blade gets stuck or blocked, affecting the fracturing operation of adding fracturing sand. Summary of the Invention

[0005] The purpose of the embodiments of the present disclosure is to provide an operation system for a wet fracturing sand well site to solve the problems of low blanking efficiency and easy aggregation of wet fracturing sand, which affect the fracturing operation of adding fracturing sand in the prior art.

[0006] To solve the above technical problems, the embodiments of the present disclosure provide an operation system for a wet fracturing sand well site, including a wet fracturing sand conveying device, a transportation device, and a sand mixing equipment. The wet fracturing sand conveying device at least includes a first conveying component and a second conveying component. The wet fracturing sand conveying device receives the wet fracturing sand transported by the transportation device through the second conveying component and conveys it to the sand mixing equipment through the first conveying component.

[0007] In some embodiments, the number of the second conveying components is the same as the number of the transportation devices. The second conveying components are multiple, and multiple second conveying components are all connected to the first conveying component.

[0008] In some embodiments, the first conveying component includes a first buffer device and a first conveying device. The first conveying device is used to connect the first buffer device and the sand mixing equipment. The second conveying component includes a second buffer device and a second conveying device. The second conveying device is used to connect the second buffer device and the first buffer device.

[0009] In some embodiments, the second conveying components are multiple, and the second conveying devices of multiple second conveying components are all connected to the first buffer device.

[0010] In some embodiments, the first conveying device includes a first base. A first conveying unit and a first lifting device are arranged on the first base. The first conveying unit is inclined. The first position of the first conveying unit corresponds to the discharge port of the first buffer device. A first blanking device is arranged at the second position of the first conveying unit. The first lifting device is used to adjust the inclination angle of the first conveying unit.

[0011] In some embodiments, the second conveying device includes a second base, on which a second conveying unit and a second lifting device are arranged. The second conveying unit is inclined. A first position of the second conveying unit corresponds to the discharge port of the second buffer device, and a second position thereof is provided with a second blanking device connected to the first buffer device. The second lifting device is used to adjust the inclination angle of the second conveying unit.

[0012] In some embodiments, the first conveying device and / or the second conveying device further includes a weighing assembly for weighing wet fracturing sand.

[0013] In some embodiments, the first buffer device and / or the second buffer device has at least one of the functions of vibration, filtration, and stirring.

[0014] In some embodiments, the first buffer device has the functions of vibration, filtration, and stirring to perform secondary treatment on wet fracturing sand, and the second buffer device has the stirring function to perform primary treatment on wet fracturing sand.

[0015] In some embodiments, the transportation device is at least one of a sand truck, a dump truck, or a loader.

[0016] The embodiments of the present disclosure can simultaneously achieve the blanking of wet fracturing sand transported by multiple transportation devices, improve the blanking efficiency, and perform various treatments such as vibration and stirring on the wet fracturing sand during the transportation process to avoid the aggregation of wet fracturing sand due to low moisture content, and improve the effect of subsequent fracturing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Schematic layout diagram of the wet fracturing sand conveying device provided by the first embodiment of the present disclosure;

[0019] Figure 2 Schematic structural diagram of the second conveying component in the wet fracturing sand conveying device provided by the first embodiment of the present disclosure;

[0020] Figure 3 Schematic structural diagram of the first conveying component in the wet fracturing sand conveying device provided by the first embodiment of the present disclosure;

[0021] Figure 4Schematic structural diagram of the first buffer device in the wet fracturing sand conveying device provided by the first embodiment of the present disclosure;

[0022] Figure 5 Schematic layout diagram one of the operation system for the wet fracturing sand well site provided by the second embodiment of the present disclosure;

[0023] Figure 6 Schematic layout diagram one of the operation system for the wet fracturing sand well site provided by the second embodiment of the present disclosure.

[0024] Reference numerals:

[0025] 1 - First conveying assembly; 2 - Second conveying assembly; 11 - First buffer device; 111 - Frame; 112 - Hopper frame; 113 - Hopper body; 114 - Elastic member; 115 - Motor; 116 - Moisture measuring device; 117 - First stirring device; 118 - Gate; 119 - Bulk material recovery device; 12 - First conveying device; 121 - First base; 122 - First conveyor belt; 123 - First feeding device; 124 - First lifting device; 125 - First belt scale; 21 - Second buffer device; 211 - Second stirring device; 22 - Second conveying device; 221 - Second base; 222 - Second conveyor belt; 2221 - First belt part; 2222 - Second belt part; 223 - Second feeding device; 224 - Second lifting device; 225 - Second belt scale; 100 - Wet fracturing sand conveying device; 200 - Transportation device; 300 - Sand mixing equipment. Detailed implementation manners

[0026] Reference is made herein to the various aspects and features of the present disclosure with reference to the accompanying drawings.

[0027] It should be understood that various modifications can be made to the embodiments claimed herein. Accordingly, the above description should not be regarded as limiting, but merely as exemplary of the embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the present disclosure.

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and, together with the general description of the present disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the present disclosure.

[0029] These and other features of the present disclosure will become apparent from the following description of the preferred forms of the embodiments, given by way of non - limiting example with reference to the accompanying drawings.

[0030] It should also be understood that although the present disclosure has been described with reference to some specific examples, those skilled in the art can surely implement many other equivalent forms of the present disclosure, which have the features as described in the claims and thus are all within the protection scope defined thereby.

[0031] When combined with the accompanying drawings, the above and other aspects, features, and advantages of the present disclosure will become more obvious in view of the following detailed description.

[0032] Hereinafter, specific embodiments of the present disclosure will be described with reference to the accompanying drawings; however, it should be understood that the embodiments claimed are merely examples of the present disclosure, which can be implemented in various ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present disclosure with unnecessary or redundant details. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely as a basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in substantially any suitable detailed structure in a variety of ways.

[0033] This specification may use the phrases "in one embodiment", "in another embodiment", "in yet another embodiment", or "in other embodiments", which may each refer to one or more of the same or different embodiments according to the present disclosure.

[0034] The first embodiment of the present disclosure provides a wet fracturing sand conveying device, which includes a first conveying component and a second conveying component. Here, the first conveying component is connected to the second conveying component. The second conveying component can receive the wet fracturing sand transported by an external transportation device, transport the wet fracturing sand to the second conveying component after primary treatment, and the second conveying component transports the wet fracturing sand to a sand mixing device after fine treatment.

[0035] Furthermore, the number of the second conveying components can be one or multiple, and the number of the second conveying components corresponds to the number of the transportation devices. Wherein, when there are multiple second conveying components, the multiple second conveying components are all connected to the first conveying component. Here, through the multiple second conveying components, the wet fracturing sand transported from different transportation devices can be received, thereby improving the conveying efficiency. The first conveying component includes a first buffer device and a first conveying device. Among them, the first buffer device is used for fine treatment of the wet fracturing sand. Here, the first conveying device or the second conveying device can be, for example, a belt conveying device or a screw conveying device, or other devices capable of realizing conveying. The conveying device here includes at least one conveying unit. For a belt conveying device, the conveying unit is a conveying belt, and for a screw conveying device, the conveying unit is a screw conveying channel. In this embodiment, the belt conveying device is mainly taken as an example for introduction.

[0036] In this embodiment, as Figures 1-4 shown, the wet fracturing sand conveying device 100 includes a first conveying assembly 1 and a second conveying assembly 2. The first conveying assembly 1 includes a first buffer device 11 and a first conveying device 12. Among them, the first conveying device 12 is used to connect the first buffer device 11 and the sand mixing device. The second conveying assembly 2 includes a second buffer device 21 and a second conveying device 22. The second buffer device 21 is used to receive external wet fracturing sand and perform preliminary treatment. The second conveying device 22 is used to connect the second buffer device 21 and the first buffer device 11.

[0037] Specifically, when using the wet fracturing sand conveying device of this embodiment, the wet fracturing sand is conveyed to the second buffer device 21 of the second conveying assembly 2 through methods such as bulk bags, sand transport vehicles or dump trucks at the fracturing well site for preliminary treatment such as stirring. The wet fracturing sand after preliminary treatment is conveyed to the first conveying assembly 1 through the second conveying device 22. The first conveying assembly 1 is arranged on the discharge side of the second conveying assembly 2. Among them, the first buffer device 11 is connected to the discharge end of the second conveying device 22, and it can receive the wet fracturing sand conveyed by the second conveying device 22 and perform fine treatment, and then convey the wet fracturing sand after fine treatment to the sand mixing device through the first conveying device 12. The sand mixing device here is, for example, a sand mixing tank. Specifically, within the first conveying assembly 1, the first buffer device 11 can perform various fine treatments on the wet fracturing sand, such as vibration, filtration, and stirring, and can convey the wet fracturing sand after fine treatment to the first conveying device 12, and finally convey the wet fracturing sand to the sand mixing device through the first conveying device 12 based on a predetermined conveying speed.

[0038] Specifically, the first buffer device 11 in this embodiment is arranged at a first position of the first conveying device 12, such as the first end of the first conveying device 12. The wet fracturing sand falls from the second conveying device 22 of the second conveying assembly 2 into the first buffer device 11 and is conveyed to the sand mixing device through a second position of the first conveying device 12, such as the second end of the first conveying device 12.

[0039] Specifically, the first conveying device 12 includes a first base 121, on which a first conveyor belt 122 is arranged. The first conveyor belt 122 here can be a flat belt or a partition belt. The first conveyor belt 122 is arranged obliquely, with its first end facing the discharge port of the first buffer device 11, and its second end is provided with a first blanking device 123. Here, it is connected to the sand mixing equipment through the first blanking device 123, which is used to convey the wet fracturing sand to the sand mixing equipment. In addition, the first blanking device 213 can break up the agglomerated wet fracturing sand.

[0040] Further, a first lifting device 124 is arranged, for example, in the middle of the first conveyor belt 122. One end of the first lifting device 124 is connected to the first base 121, and the other end of the first lifting device 124 is connected to, for example, the middle of the first conveyor belt 122. By the action of the first lifting device 124, the second end of the first conveyor belt 122 can be lifted to a predetermined height, so that the first conveyor belt 122 can be arranged in an inclined manner.

[0041] The first lifting device 124 here can lift the second end of the first conveyor belt 122 to a fixed height or a variable height, so that the first conveyor belt 122 is arranged in an inclined manner and the inclination angle can be adjusted. The first lifting device 124 is, for example, a support rod with a constant length to achieve lifting to a fixed height. Of course, the first lifting device 124 can also be a telescopic oil cylinder with adjustable length. The telescopic oil cylinder can be manually or automatically controlled. Through the telescopic oil cylinder, the lifting height of the first conveyor belt 122 can be adjusted. In this embodiment, by the first lifting device 124, the inclination angle of the first conveyor belt 122 is changed, so that the first blanking device 213 can correspond to sand mixing equipment at different heights.

[0042] Further, the first conveying device 12 further includes a weighing component, which is used to weigh the weight or volume of the wet fracturing sand on the first conveyor belt 122. It can be, for example, an electronic belt scale, a nuclear belt scale, a dual lidar detection, or a binocular vision measurement system. In this embodiment, a first belt scale 125 is arranged on the first conveyor belt 122. Through the first belt scale 125, the weight or volume of the wet fracturing sand on the first conveyor belt 122 can be weighed, so as to facilitate the first buffer device 11 to control the feeding amount.

[0043] The first buffer device 11 is a sand tank integrating functions of vibration, filtration, and stirring, so as to realize the functions of breaking, vibrating, stirring, and continuously conveying wet fracturing sand. The essence of the treatment here is to enhance the fluidity of the wet fracturing sand and transform it into something basically similar to dry fracturing sand, so as to accurately control the conveying amount of the wet fracturing sand.

[0044] A vibration and filtration function area A, a stirring and arch-breaking function area B, and a conveyor belt function C are sequentially arranged in the first buffer device 11 from top to bottom. In this embodiment, the first buffer device 11 includes a frame 111, and a hopper assembly is arranged on the frame 111. Here, the hopper assembly is arranged above the frame 111. The hopper assembly includes a hopper frame 112 and a hopper body 113. The hopper frame 112 is arranged on the upper end surface of the frame 111, and the hopper body 113 is arranged below the hopper frame 112. The wet fracturing sand falls onto the first conveyor belt 122 through the hopper assembly.

[0045] An elastic member 114 is arranged between the hopper frame 112 of the hopper assembly and the frame 111. The elastic member 114 can be, for example, a vibration spring. Here, the hopper assembly realizes vibration through the elastic member 114, so as to realize the vibration of the wet fracturing sand. Among them, a motor 115 is arranged on the hopper frame 112. The motor 115 is connected to the elastic member 114. The motor 115 realizes the transmission of the vibration force. The elastic member 114 separates the vibration and filtration function area A from the stirring and arch-breaking function area B, realizing the independence of the upper sand feeding area and realizing the vibration function.

[0046] A filtering device is arranged in the hopper assembly to filter the wet fracturing sand input into the hopper assembly. In addition, a bulk material recovery device 119 can also be arranged in the first buffer device 11. In this way, the wet fracturing sand can accelerate its fluidity after vibration and can pass through the filtering device more smoothly. Larger impurities are filtered out during the filtering process, and the bulk material recovery device 119 is used to conveniently collect the filtered impurities.

[0047] Furthermore, a moisture measuring device 116 is arranged on the inner side of the hopper body 113. Here, the moisture content in the wet fracturing sand is measured through the moisture measuring device 116, and the on-line detection of the moisture content of the conveyed wet fracturing sand is realized by measuring the moisture content in the wet fracturing sand in real time.

[0048] In addition, a first stirring device 117 is arranged on the inner side of the hopper body 113. The first stirring device 117 is connected to the motor 115. The wet fracturing sand after vibration and filtration is dispersed through the first stirring device 117 to facilitate better falling onto the belt.

[0049] Further, the bottom of the hopper body 113 has a blanking port, and a gate plate 118 is arranged inside the blanking port. The wet fracturing sand that has been vibrated and stirred falls onto the first conveyor belt 122 through the blanking port. Here, the gate plate 118 can control the opening and closing of the blanking port.

[0050] Further, a conveying material scraper is arranged on the hopper body 113, and the conveying material scraper realizes the flatness of the wet fracturing sand falling onto the belt and makes the cross-sectional shape of the wet fracturing sand on the belt uniform.

[0051] The above embodiments of the present disclosure can highly integrate the hopper assembly and the belt conveying device. It can not only reduce the height of the hopper assembly to facilitate the loading of wet sand, but also shorten the overall length dimension of the wet fracturing sand conveying device to facilitate transportation.

[0052] Further, the second buffer device 21 in this embodiment is arranged at the first end of the second conveying device 22. The wet fracturing sand falls from an external transportation device into the second buffer device 21 and is conveyed from the first end of the second conveying device 22 to the second end of the second conveying device 22, and finally falls into the first buffer device 11. Wherein, a second stirring device 211 is arranged in the second buffer device 21. The main function of the second buffer device 21 in this embodiment is to realize the feeding of the wet fracturing sand and conduct preliminary stirring on the wet fracturing sand, and convey it to the first buffer device 11 through the second conveying device 22.

[0053] Further, the second conveying device 22 includes a second base 221. A second conveyor belt 222 and a second lifting device 223 are arranged on the second base 221. The second conveyor belt 222 is inclined. The first end of the second conveyor belt 222 is arranged opposite to the second buffer device 21, and a second blanking device 223 is arranged at the second end of the second conveyor belt 222. Here, the second conveyor belt 222 can be a flat belt or a belt with partitions. The second end of the second conveyor belt 222 is connected to the top of the first buffer device 11 through the second blanking device 223.

[0054] The first lifting device 124 here can lift the second end of the first conveyor belt 122 to a fixed height or a variable height, so that the first conveyor belt 122 is arranged in an inclined manner and the inclination angle can be adjusted. The first lifting device 124 is, for example, a support rod with a constant length to achieve lifting to a fixed height. Of course, the first lifting device 124 can also be a telescopic oil cylinder with adjustable length. The telescopic oil cylinder can be manually or automatically controlled. Through the telescopic oil cylinder, the lifting height of the first conveyor belt 122 can be adjusted. In this embodiment, by changing the inclination angle of the first conveyor belt 122 through the first lifting device 124, the first blanking device 213 can correspond to sand mixing equipment at different heights.

[0055] Further, a second lifting device 224 is arranged, for example, in the middle of the second conveyor belt 222. One end of the second lifting device 224 is connected to the second base 221, and the other end of the second lifting device 224 is connected to, for example, the middle of the second conveyor belt 222. Through the action of the second lifting device 224, the second end of the second conveyor belt 222 can be lifted to a predetermined height, so that the second conveyor belt 222 can be arranged in an inclined manner. The second lifting device 224 here can lift the second end of the second conveyor belt 222 to a fixed height or a variable height, so that the second conveyor belt 222 is arranged in an inclined manner and the inclination angle can be adjusted. The second lifting device 224 is, for example, a support rod with a constant length to achieve lifting to a fixed height. Of course, the second lifting device 224 can also be a telescopic oil cylinder with adjustable length. The telescopic oil cylinder can be manually or automatically controlled. Through the telescopic oil cylinder, the lifting height of the second conveyor belt 222 can be adjusted. In this embodiment, by changing the inclination angle of the second conveyor belt 222 through the second lifting device 224, the second blanking device 223 can correspond to the first buffer device 11 at different heights.

[0056] Further, for the convenience of transporting the wet fracturing sand, the second conveyor belt 222 herein includes a first belt portion 2221 and a second belt portion 2222 that are connected to each other. The first belt portion 2221 is disposed on the second base 221 and, for example, is disposed at a position near the first end of the second base 221. It is arranged parallel to the second base 221. The second belt portion 2222 is disposed obliquely with respect to the second base 221. Among them, the first end of the second belt portion 2222 is connected to the first belt portion 2221, and its second end can be tilted by the second lifting device 224. The second feeding device 223 is disposed at the second end of the second belt portion 2222. In this way, the wet fracturing sand transported by the external transportation device can first fall onto the horizontally arranged first belt portion 2221, which facilitates the feeding of the wet fracturing sand. Then, after the wet fracturing sand is transported to a higher position by the second belt portion 2222, it falls into the first buffer device 11 through the second feeding device 223.

[0057] Further, the second conveying device 22 further includes a weighing assembly for weighing the weight or volume of the wet fracturing sand on the second conveyor belt 222. It can be, for example, an electronic belt scale, a nuclear belt scale, a dual lidar detection, or a binocular vision measurement system. In this embodiment, a second belt scale 225 is disposed on the first belt portion 2221 and / or the second belt portion 2222 of the second conveyor belt 222, especially on the second belt portion 2222. Through the belt scale 225, the weight or volume of the wet fracturing sand on the second belt portion 2222 can be weighed, so as to facilitate the second buffer device 22 to control the feeding amount.

[0058] The above embodiments of the present disclosure can highly integrate the hopper assembly and the belt conveying device. It can not only reduce the height of the hopper assembly to facilitate the feeding of wet sand, but also shorten the overall length dimension of the wet fracturing sand conveying device to facilitate transportation.

[0059] The second embodiment of the present disclosure provides an operation system for a wet fracturing sand well site, which includes a wet fracturing sand conveying device, a transportation device, and a sand mixing device. The wet fracturing sand conveying device herein is the wet fracturing sand conveying device in any one of the above first embodiments.

[0060] This embodiment is mainly used in the wet fracturing sand well site. After the wet fracturing sand is processed at the production site, it is transported to the well site or near the well site by the first transportation device for stacking and storage. Since the well site here is an open sand factory, an appropriate spraying device can be provided for the wet fracturing sand to maintain the moisture content of the wet fracturing sand, avoiding the raising of dust caused by using other equipment and polluting the environment. Then, the wet fracturing sand is transported to the position of the buffer device of the wet fracturing sand conveying device by the second transportation device, and the wet fracturing sand is conveyed to the sand mixing equipment by the belt conveying device for preparing fracturing fluid. The first transportation device here can be a sand truck or a dump truck, the second transportation device can be a sand truck or a dump truck or a loader, and the sand mixing equipment can be the sand mixing tank of a sand mixing truck.

[0061] In one embodiment, as Figures 5-6 shown, the operation system for the wet fracturing sand well site includes a wet fracturing sand conveying device 100, a transportation device 200, and a sand mixing equipment 300. The wet fracturing sand conveying device 100 here adopts the structure of the first embodiment, for example. In this embodiment, the wet fracturing sand conveying device 100 can convey the wet fracturing sand transported by the plurality of transportation devices 200 to the sand mixing equipment 300, for example. For example, the number of the second buffer devices 21 can be matched with the number of the transportation devices 200, so that the plurality of transportation devices 200 can correspondingly drop the wet fracturing sand into the corresponding second buffer devices 21.

[0062] To save space and facilitate dropping, the plurality of transportation devices 200 are arranged side by side in a direction perpendicular to the extending direction of the first conveying device 12. Considering that the first buffer device 11 in the wet fracturing sand conveying device 100 is used to receive the wet fracturing sand conveyed by the plurality of second conveying components 2, for example, the size of the hopper component of the first buffer device 11 in the direction perpendicular to the first conveying device 12 can be increased so as to be able to receive the wet fracturing sand conveyed by the plurality of second conveying components 2 at the same time. The use of the widened hopper component here can realize the sand loading work at multiple workstations at the same time, and the placement angle of each transportation device 200 can be adjusted according to the limitation of the operation site, reducing the adverse impact of the limited space of the fracturing well site.

[0063] The embodiment of the present disclosure can simultaneously realize the dropping of the wet fracturing sand transported by a plurality of transportation devices, improve the dropping efficiency, and perform various treatments such as vibration and stirring on the wet fracturing sand during the transportation process of the wet fracturing sand to avoid the aggregation of the wet fracturing sand due to low moisture content and improve the effect of subsequent fracturing operations.

[0064] In addition, the features of the embodiments shown in the accompanying drawings of the present application or various embodiments mentioned in this specification do not necessarily need to be understood as independent embodiments from each other. Instead, each feature described in one example of an embodiment can be combined with one or more other desired features from other embodiments, thereby generating other embodiments not described in words or with reference to the accompanying drawings.

[0065] The above-described embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included within the protection scope of the present application.

Claims

1. An operating system for wet fracturing sand well field, characterized in that: It includes a wet fracturing sand conveying device, a transportation device and a sand mixing device. The wet fracturing sand conveying device includes at least a first conveying component and a second conveying component. The wet fracturing sand conveying device receives the wet fracturing sand transported by the transportation device through the second conveying component and transports it to the sand mixing device through the first conveying component.

2. The operating system for wet fracturing sand well field according to claim 1, characterized in that: The number of the second conveying components is the same as the number of the transport devices, there are multiple second conveying components, and the multiple second conveying components are all connected to the first conveying component.

3. The operating system for wet fracturing sand well field according to claim 1, characterized in that: The first conveying assembly includes a first buffer device and a first conveying device, the first conveying device is used to connect the first buffer device and the sand mixing equipment, and the second conveying assembly includes a second buffer device and a second conveying device, the second conveying device is used to connect the second buffer device and the first buffer device.

4. The operating system for wet fracturing sand well field according to claim 3, characterized in that: There are multiple second conveying assemblies, and the second conveying devices of the multiple second conveying assemblies are all connected to the first buffer device.

5. The operating system for wet fracturing sand well field according to claim 3, characterized in that: The first conveying device includes a first base, on which a first conveying unit and a first lifting device are arranged, the first conveying unit is arranged at an angle, the first position of the first conveying unit corresponds to the discharge port of the first buffer device, the second position of the first conveying unit is arranged with a first unloading device, and the first lifting device is used to adjust the inclination angle of the first conveying unit.

6. The operating system for wet fracturing sand well field according to claim 3, characterized in that: The second conveying device includes a second base, on which a second conveying unit and a second lifting device are arranged. The second conveying unit is arranged at an angle. The first position of the second conveying unit corresponds to the discharge port of the second buffer device, and the second position thereof is arranged with a second unloading device connected to the first buffer device. The second lifting device is used to adjust the inclination angle of the second conveying unit.

7. The operating system for wet fracturing sand well field according to claim 3, characterized in that: The first conveying device and / or the second conveying device further comprises a weighing assembly for weighing the wet fracturing sand.

8. The operating system for wet fracturing sand well field according to any one of claims 3 to 7, characterized in that: The first buffer device and / or the second buffer device has at least one function of vibration, filtering and stirring.

9. The operating system for wet fracturing sand well field according to claim 8, characterized in that: The first buffer device has vibration, filtering and stirring functions to perform secondary treatment on the wet fracturing sand, and the second buffer device has stirring function to perform primary treatment on the wet fracturing sand.

10. The operating system for wet fracturing sand well field according to claim 1, characterized in that: The transport device is at least one of a sand truck, a dump truck or a loader.

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