Skid-mounted fracturing fluid mixing device

Abstract

The utility model discloses a skid-mounted fracturing fluid mixing device, and relates to the technical field of liquid mixing. The top of the stirring barrel is fixedly provided with a charging pipe, the side wall surface of the stirring barrel is fixedly provided with a feeding pipe, the stirring barrel is internally provided with a feeding pipe, the internal input end of the feeding pipe is fixedly provided with a material guiding pipe, and the output end of the charging pipe is arranged in the material guiding pipe. Ingredients entering the feeding pipe enter all the inclined square pipes, the ingredients entering all the inclined square pipes extrude the corresponding anti-backflow assemblies and enter the stirring barrel, and after the ingredients in all the inclined square pipes are discharged, the anti-backflow assemblies can prevent fracturing fluid from entering the inclined square pipes; and after the driving assembly is started, the feeding pipe, the material guiding pipe and the oblique square pipe can be driven to rotate and ascend and descend, so that powdery and granular ingredients and the like can be injected into different positions in the stirring barrel, and subsequent uniform mixing is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid mixing, and particularly relates to a skid-mounted fracturing fluid mixing device. Background Technique

[0002] The skid-mounted fracturing fluid system is an integrated fracturing fluid treatment device that is convenient for movement and installation, and is mainly used for fracturing operations in the exploration and development of oil and gas fields; the main components of fracturing fluid include thickeners (such as guar gum), cross-linking agents (such as borax / organic boron), breaker agents (such as ammonium persulfate), surfactants, clay stabilizers, PH regulators, flowback aids, etc. These components usually need to be mixed with water or other solvents during preparation to ensure that the performance of the fracturing fluid meets the construction requirements. During the preparation of fracturing fluid, the uniformity and stability of mixing have a crucial impact on the fracturing effect.

[0003] During the preparation of fracturing fluid, it is inevitable to encounter the situation of continuously adding ingredients during the stirring process. Due to the poor fluidity of fracturing fluid, when adding powdery, granular and other ingredients during stirring with the existing skid-mounted fracturing fluid mixing device, the powdery, granular and other ingredients will accumulate on the surface of the fracturing fluid, making it difficult to stir evenly subsequently. For this reason, a skid-mounted fracturing fluid mixing device is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that when adding powdery, granular and other ingredients during stirring with the existing skid-mounted fracturing fluid mixing device, the powdery, granular and other ingredients will accumulate on the surface of the fracturing fluid, making it difficult to stir evenly subsequently. The utility model provides a skid-mounted fracturing fluid mixing device.

[0005] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0006] A skid-mounted fracturing fluid mixing device includes a stirring barrel. A feeding pipe is fixedly installed at the top of the stirring barrel, a feed pipe is fixedly installed on the side wall surface of the stirring barrel, a feeding pipe is arranged inside the stirring barrel, a guiding pipe is fixedly installed at the inner input end of the feeding pipe, the output end of the feeding pipe is placed inside the guiding pipe, a number of longitudinally equidistantly distributed rhomboid pipes are fixedly installed on both side wall surfaces of the feeding pipe, one end of each rhomboid pipe close to the feeding pipe is set as the highest end, and one end of each rhomboid pipe far from the feeding pipe is set as the lowest end. A driving component for driving the feeding pipe to rotate and lift is arranged inside the stirring barrel, and an anti-backflow component for preventing the backflow of fracturing fluid is arranged inside each rhomboid pipe.

[0007] Further, the driving assembly includes a toothed ring. A rotatable toothed ring is movably installed on the inner top surface of the mixing barrel. Two symmetrically arranged mounting rods are fixedly installed on the inner side wall surface of the toothed ring. An electric telescopic rod is fixedly installed at the bottom of each mounting rod. Connecting rods are respectively fixedly installed on the two side wall surfaces of the feeding pipe. The output end of each electric telescopic rod is fixedly connected to the adjacent connecting rod. A rotatable gear is movably installed on the inner top surface of the mixing barrel. A servo motor for driving the gear to rotate is fixedly installed on the top of the mixing barrel.

[0008] Further, the anti-backflow assembly includes a rectangular frame. A rectangular frame is fixedly installed inside each rhomboid pipe. A sealing plate is arranged on one side of each rectangular frame away from the feeding pipe. Four round rods are fixedly installed on one side of each sealing plate close to the adjacent rectangular frame. Each round rod penetrates through the adjacent rectangular frame. Blocks are fixedly installed on both sides inside each rhomboid pipe. A spring is fixedly installed on one side of each block away from the feeding pipe. One end of each spring away from the adjacent block is fixedly connected to the adjacent sealing plate.

[0009] Further, stirring rods I are fixedly installed on the two side wall surfaces of the feeding pipe corresponding to the upper part of each rhomboid pipe. Two stirring rods II are fixedly installed on both side wall surfaces of each stirring rod I.

[0010] Further, a number of longitudinally equidistantly distributed guiding plates are fixedly installed on both inner side wall surfaces of the feeding pipe. One side of each guiding plate close to the adjacent rhomboid pipe is set as the lowest end, and one side of each guiding plate away from the adjacent rhomboid pipe is set as the highest end.

[0011] Further, a guiding block is fixedly installed on the inner bottom surface of the feeding pipe. The guiding block is arranged in an inverted V shape.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. Through the feeding pipe, water and ingredients required for preparing the fracturing fluid can be injected into the mixing barrel of the present utility model. Then, the driving assembly is started to make the feeding pipe rotate inside the mixing barrel. The rotation of the feeding pipe drives the rhomboid pipes to rotate synchronously, thereby stirring and mixing the ingredients inside the mixing barrel. If it is necessary to add ingredients such as powders and granules at this time, they are added into the feeding pipe through the feeding pipe. The ingredients entering the feeding pipe will enter the feeding pipe through the guiding pipe. The ingredients entering the feeding pipe will then enter the inside of each rhomboid pipe. The ingredients entering the inside of each rhomboid pipe will respectively squeeze the corresponding anti-backflow assembly and enter the mixing barrel. After the ingredients inside each rhomboid pipe are discharged, the anti-backflow assembly can prevent the fracturing fluid from entering the rhomboid pipe. After the driving assembly is started, it can drive the feeding pipe, guiding pipe, and rhomboid pipe to rotate and lift, so that ingredients such as powders and granules can be injected at different positions inside the mixing barrel, facilitating subsequent uniform mixing. Description of the Drawings

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a schematic diagram of the interior of the mixing barrel of the present utility model;

[0016] Figure 3 is the present utility model Figure 1 an enlarged view of part A therein;

[0017] Figure 4 is a schematic diagram of the interior of the rhombic tube of the present utility model;

[0018] Figure 5 is the present utility model Figure 4 an enlarged view of part B therein;

[0019] Reference numerals: 1, mixing barrel; 2, feeding pipe; 3, inlet pipe; 4, feeding pipe; 5, guiding pipe; 6, rhombic tube; 7, driving assembly; 701, toothed ring; 702, mounting rod; 703, electric telescopic rod; 704, connecting rod; 705, gear; 706, servo motor; 8, anti-backflow assembly; 801, rectangular frame; 802, sealing plate; 803, round rod; 804, square block; 805, spring; 9, stirring rod one; 10, stirring rod two; 11, guiding plate; 12, guiding block. Detailed Description of the Preferred Embodiment

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but is merely representative of selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0022] It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "outside", "upper", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] As Figures 1 to 5 shown, a skid-mounted fracturing fluid mixing device includes a mixing barrel 1. A feeding pipe 2 is fixedly installed at the top of the mixing barrel 1, a feeding pipe 3 is fixedly installed on the side wall surface of the mixing barrel 1, a feeding pipe 4 is arranged inside the mixing barrel 1, a guiding pipe 5 is fixedly installed at the inner input end of the feeding pipe 4, the output end of the feeding pipe 2 is placed inside the guiding pipe 5. A number of longitudinally equally spaced rhomboid pipes 6 are fixedly installed on both side wall surfaces of the feeding pipe 4. One end of each rhomboid pipe 6 close to the feeding pipe 4 is set as the highest end, and one end of each rhomboid pipe 6 far from the feeding pipe 4 is set as the lowest end. A driving assembly 7 for driving the feeding pipe 4 to rotate and lift is arranged inside the mixing barrel 1. An anti-backflow assembly 8 for preventing the backflow of the fracturing fluid is arranged inside each rhomboid pipe 6. It should be noted that water and ingredients required for preparing the fracturing fluid can be injected into the mixing barrel 1 through the feeding pipe 3. Then, the driving assembly 7 is started to make the feeding pipe 4 rotate inside the mixing barrel 1. The rotation of the feeding pipe 4 drives the rhomboid pipes 6 to rotate synchronously, so as to stir and mix the ingredients inside the mixing barrel 1. If it is necessary to add ingredients such as powder and granules at this time, they are added into the feeding pipe 4 through the feeding pipe 2. The ingredients entering the feeding pipe 2 will enter the feeding pipe 4 through the guiding pipe 5. The ingredients entering the feeding pipe 4 will then enter the interior of each rhomboid pipe 6. The ingredients entering the interior of each rhomboid pipe 6 will respectively squeeze the corresponding anti-backflow assembly 8 and enter the mixing barrel 1. After the ingredients inside each rhomboid pipe 6 are discharged, the anti-backflow assembly 8 can prevent the fracturing fluid from entering the rhomboid pipe 6. After the driving assembly 7 is started, it can drive the feeding pipe 4, the guiding pipe 5, and the rhomboid pipes 6 to rotate and lift, so that ingredients such as powder and granules can be injected at different positions inside the mixing barrel 1, which is convenient for subsequent uniform mixing.

[0025] As Figure 1 、 Figure 2As shown, the driving assembly 7 includes a toothed ring 701. The inner top surface of the stirring barrel 1 is movably installed with a rotatable toothed ring 701. The inner side wall surface of the toothed ring 701 is fixedly installed with two symmetrically arranged mounting rods 702. The bottom of each mounting rod 702 is fixedly installed with an electric telescopic rod 703. The two side wall surfaces of the feeding pipe 4 are respectively fixedly installed with connecting rods 704. The output end of each electric telescopic rod 703 is fixedly connected to the adjacent connecting rod 704. The inner top surface of the stirring barrel 1 is movably installed with a rotatable gear 705. The top of the stirring barrel 1 is fixedly installed with a servo motor 706 for driving the gear 705 to rotate. It should be noted that after the servo motor 706 is started, it can drive the gear 705 to rotate. The rotation of the gear 705 can cause the toothed ring 701 to rotate. The rotation of the toothed ring 701 can drive the mounting rods 702, electric telescopic rods 703, connecting rods 704, feeding pipe 4, guiding pipe 5, and rhomboid pipe 6 to rotate synchronously. And the two electric telescopic rods 703 can respectively drive the two connecting rods 704 and the feeding pipe 4, guiding pipe 5, and rhomboid pipe 6 to lift, so as to adjust the position of the output end of each rhomboid pipe 6, so that the ingredients inside the feeding pipe 4 can be injected from different positions inside the stirring barrel 1, which is convenient for subsequent uniform mixing.

[0026] As Figure 4 , Figure 5 shown, the anti-backflow assembly 8 includes a rectangular frame 801. A rectangular frame 801 is fixedly installed inside each rhomboid pipe 6. A sealing plate 802 is arranged on one side of each rectangular frame 801 away from the feeding pipe 4. Four round rods 803 are fixedly installed on one side of each sealing plate 802 close to the adjacent rectangular frame 801. Each round rod 803 passes through the adjacent rectangular frame 801. Square blocks 804 are fixedly installed on both sides inside each rhomboid pipe 6. A spring 805 is fixedly installed on one side of each square block 804 away from the feeding pipe 4. One end of each spring 805 away from the adjacent square block 804 is fixedly connected to the adjacent sealing plate 802. It should be noted that when the ingredients squeeze the sealing plate 802, the four round rods 803 on each sealing plate 802 can limit the movement track of the sealing plate 802. The sealing plate 802 is squeezed by the ingredients and moves away from the adjacent rectangular frame 801. At this time, the sealing plate 802 drives the corresponding two springs 805 to stretch, and the ingredients can pass through the inside of the rectangular frame 801 and be discharged. When the discharging of the ingredients is completed, the spring 805 will contract and drive the corresponding sealing plate 802 to approach the adjacent rectangular frame 801, preventing the fracturing fluid from entering the inside of the rhomboid pipe 6.

[0027] As Figures 1 to 3As shown, on both side walls of the feeding pipe 4, stirring rods one 9 are fixedly installed corresponding to the upper side of each rhomboid pipe 6. On both side walls of each stirring rod one 9, two stirring rods two 10 are fixedly installed. It should be noted that when the feeding pipe 4 rotates, it can drive the stirring rods one 9 and the stirring rods two 10 to rotate synchronously to stir and mix the ingredients inside the mixing barrel 1.

[0028] As Figure 1 , Figure 3 shown, on both inner side walls of the feeding pipe 4, a number of longitudinally equally spaced guiding plates 11 are fixedly installed. The side of each guiding plate 11 close to the adjacent rhomboid pipe 6 is set at the lowest end, and the side of each guiding plate 11 far from the adjacent rhomboid pipe 6 is set at the highest end. It should be noted that the guiding plates 11 can guide the ingredients entering the inside of the feeding pipe 4 so that the ingredients can enter the inside of the rhomboid pipe 6.

[0029] As Figure 1 , Figure 3 shown, a guiding block 12 is fixedly installed on the inner bottom surface of the feeding pipe 4. The guiding block 12 is arranged in an inverted V shape. It should be noted that the guiding block 12 can guide the ingredients to the inside of the two side rhomboid pipes 6, facilitating the discharge of the ingredients inside the feeding pipe 4.

[0030] In summary:

[0031] Through the feed pipe 3, water and ingredients required for preparing the fracturing fluid can be injected into the inside of the mixing barrel 1. Then, the driving assembly 7 is started to make the feeding pipe 4 rotate inside the mixing barrel 1. The rotation of the feeding pipe 4 drives the rhomboid pipe 6 to rotate synchronously, thereby stirring and mixing the ingredients inside the mixing barrel 1. If powdered, granular and other ingredients need to be added at this time, they are added into the inside of the feeding pipe 4 through the feeding pipe 2. The ingredients entering the inside of the feeding pipe 2 will enter the inside of the feeding pipe 4 through the guiding pipe 5. The ingredients entering the inside of the feeding pipe 4 will then enter the inside of each rhomboid pipe 6. The ingredients entering the inside of each rhomboid pipe 6 will respectively press against the corresponding anti-backflow assembly 8 and enter the inside of the mixing barrel 1. After the ingredients inside each rhomboid pipe 6 are discharged, the anti-backflow assembly 8 can prevent the fracturing fluid from entering the inside of the rhomboid pipe 6. After the driving assembly 7 is started, it can drive the feeding pipe 4, the guiding pipe 5, and the rhomboid pipe 6 to rotate and lift, so that powdered, granular and other ingredients can be injected at different positions inside the mixing barrel 1, facilitating subsequent uniform mixing.

[0032] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the descriptions in the specification are only the principles of the present utility model. Without departing from the spirit and scope of the present utility model, various changes and improvements will occur to the present utility model, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A skid-mounted fracturing fluid mixing device, characterized in that, It includes a mixing barrel (1). A feeding pipe (2) is fixedly installed at the top of the mixing barrel (1). A feed pipe (3) is fixedly installed on the side wall surface of the mixing barrel (1). A feeding pipe (4) is arranged inside the mixing barrel (1). A guiding pipe (5) is fixedly installed at the inner input end of the feeding pipe (4). The output end of the feeding pipe (2) is placed inside the guiding pipe (5). A number of longitudinally equally spaced rhomboid pipes (6) are fixedly installed on both side wall surfaces of the feeding pipe (4). One end of each rhomboid pipe (6) close to the feeding pipe (4) is set as the highest end, and one end of each rhomboid pipe (6) far from the feeding pipe (4) is set as the lowest end. A driving assembly (7) for driving the feeding pipe (4) to rotate and lift is arranged inside the mixing barrel (1). An anti-backflow assembly (8) for preventing the fracturing fluid from flowing back is arranged inside each rhomboid pipe (6).

2. The skid-mounted fracturing fluid mixing device according to claim 1, wherein, The driving assembly (7) includes a toothed ring (701). A rotatable toothed ring (701) is movably installed on the inner top surface of the mixing barrel (1). Two symmetrically arranged mounting rods (702) are fixedly installed on the inner side wall surface of the toothed ring (701). An electric telescopic rod (703) is fixedly installed at the bottom of each mounting rod (702). Connecting rods (704) are respectively fixedly installed on both side wall surfaces of the feeding pipe (4). The output end of each electric telescopic rod (703) is fixedly connected to the adjacent connecting rod (704). A rotatable gear (705) is movably installed on the inner top surface of the mixing barrel (1). A servo motor (706) for driving the gear (705) to rotate is fixedly installed at the top of the mixing barrel (1).

3. The skid-mounted fracturing fluid mixing device according to claim 1, characterized in that, The anti-backflow assembly (8) includes a rectangular frame (801). A rectangular frame (801) is fixedly installed inside each rhomboid pipe (6). A sealing plate (802) is arranged on one side of each rectangular frame (801) far from the feeding pipe (4). Four round rods (803) are fixedly installed on one side of each sealing plate (802) close to the adjacent rectangular frame (801). Each round rod (803) penetrates through the adjacent rectangular frame (801). Blocks (804) are fixedly installed on both sides inside each rhomboid pipe (6). A spring (805) is fixedly installed on one side of each block (804) far from the feeding pipe (4). One end of each spring (805) far from the adjacent block (804) is fixedly connected to the adjacent sealing plate (802).

4. A skid-mounted fracturing fluid mixing device according to claim 1, characterized in that, Stirring rods one (9) are fixedly installed on both side wall surfaces of the feeding pipe (4) corresponding to the upper side of each rhomboid pipe (6). Two stirring rods two (10) are fixedly installed on both side wall surfaces of each stirring rod one (9).

5. The skid-mounted fracturing fluid mixing device according to claim 1, characterized in that, A number of longitudinally equally spaced guiding plates (11) are fixedly installed on both inner side wall surfaces of the feeding pipe (4). One side of each guiding plate (11) close to the adjacent rhomboid pipe (6) is set as the lowest end, and one side of each guiding plate (11) far from the adjacent rhomboid pipe (6) is set as the highest end.

6. The skid-mounted fracturing fluid mixing device according to claim 1, characterized in that, A guiding block (12) is fixedly installed on the inner bottom surface of the feeding pipe (4). The guiding block (12) is arranged in an inverted V shape.

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