A fracturing flowback fluid wastewater debonding treatment device

Abstract

This utility model provides a fracturing flowback wastewater degumming treatment device, including a tank with a top cover fixedly connected to the top. Multiple rotating shafts are rotatably connected to the middle of the top cover, and stirring blades are fixedly connected below the rotating shafts. The rotating shafts and stirring blades are hollow inside. One end of each stirring blade is fixedly connected to a chemical outlet. A chemical supply assembly is fixedly connected above the rotating shafts. A feed pipe is fixedly connected to one side of the tank, and a chemical inlet pipe is fixedly connected to the middle of the feed pipe. The chemical supply assembly includes a second chemical inlet pipe and a chemical injection pump. The chemical injection pump is fixedly connected above the top cover, and the second chemical inlet pipe is fixedly connected to the inlet of the chemical injection pump. The chemical is added through both the feed pipe and the stirring zone, from the first chemical inlet pipe and the first chemical outlet of the rotating blades, mixing with the wastewater in stages. This multi-point, step-by-step addition method improves the overall mixing efficiency of the chemical and wastewater compared to single-point addition, thus helping to improve the degumming reaction effect.

Description

Technical Field

[0001] This utility model relates to the field of debonding treatment technology, and in particular to a debonding treatment device for fracturing flowback wastewater. Background Technology

[0002] Fracturing flowback fluid degelling treatment is a key purification technology for fracturing fluid flowed back to the surface after hydraulic fracturing operations in oil and gas fields. During fracturing, a large amount of fracturing fluid containing thickeners is injected underground to carry proppant, create fractures, and cool the fluid. These thickeners form a network structure in the water, resulting in a high-viscosity, high-suspended-solids colloidal state in the flowback fluid, making it difficult to reuse or discharge directly. Therefore, it is necessary to mix a degelling agent into the fracturing flowback fluid for degelling treatment.

[0003] A search revealed Chinese patent publication number CN218422822U, which discloses a high-efficiency gel-breaking device for treating fracturing flowback fluid. The device includes a storage cylinder, a connecting pipe extending through one side of the storage cylinder, a stirring cylinder fixedly connected to the bottom of the connecting pipe, and a motor housing fixedly connected to the bottom of the stirring cylinder. This high-efficiency gel-breaking device for treating fracturing flowback fluid utilizes the following components: storage cylinder, connecting pipe, stirring cylinder, motor housing, servo motor, transmission rod, stirring rod, first input pipe, and second input pipe. To address the problem in the aforementioned technologies that when the fracturing flowback fluid is too viscous, it is difficult to quickly and evenly mix the reagents into the fracturing flowback fluid simply by stirring; therefore, a fracturing flowback fluid wastewater degelatination treatment device is proposed. Utility Model Content

[0004] In view of this, the present invention aims to provide a fracturing flowback wastewater degumming treatment device to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

[0005] The technical solution of this utility model embodiment is implemented as follows: A fracturing flowback wastewater degumming treatment device includes a tank body with a top cover plate fixedly connected to the top. Multiple rotating shafts are rotatably connected to the middle of the top cover plate. A stirring blade is fixedly connected below the rotating shaft. The rotating shaft and the stirring blade are hollow inside. A drug outlet is fixedly connected to one end of the stirring blade. A drug supply component is fixedly connected above the rotating shaft. A feed pipe is fixedly connected to one side of the tank body. A drug inlet pipe is fixedly connected to the middle of the feed pipe.

[0006] In some embodiments, the drug supply assembly includes a second drug inlet tube and a drug injection pump, the drug injection pump being fixedly connected above the top cover plate, and the second drug inlet tube being fixedly connected to the drug injection pump inlet.

[0007] In some embodiments, the drug supply assembly further includes a dispensing pipe and a rotary joint, wherein the dispensing pipe is fixedly connected to the outlet end of the drug injection pump, the rotary joint is fixedly connected to one end of the dispensing pipe, and the other end of the rotary joint is fixedly connected to a rotating shaft.

[0008] In some embodiments, a second drug outlet is fixedly connected to the lower part of the drug inlet pipe, a drug outlet wheel is rotatably connected inside the second drug outlet, a propeller is rotatably connected to the inner side of the inlet pipe, and the other end of the propeller is fixedly connected to the drug outlet wheel.

[0009] In some embodiments, a discharge port is fixedly connected to the bottom of the tank.

[0010] In some embodiments, a plurality of sprockets are fixedly connected to the top of the rotating shaft, and the sprockets on different rotating shafts are connected by chain drive.

[0011] In some embodiments, a transmission gear ring is fixedly connected to one end of the rotating shaft on one side, and a drive gear is rotatably connected above the top cover plate.

[0012] In some embodiments, a drive motor is fixedly connected above the top cover plate, and the movable end of the drive motor is fixedly connected above the drive gear.

[0013] The present invention has the following advantages due to the adoption of the above technical solution: 1. A fracturing flowback wastewater debonding treatment device, wherein the agent is added at two points, namely the feed pipe and the mixing zone. The agent is added from the feed pipe and the outlet of the rotating blade, respectively, and mixed with the wastewater in stages. The multi-point and step-by-step addition method can improve the overall mixing efficiency of the agent and the wastewater compared with single-point addition, thereby helping to improve the debonding reaction effect.

[0014] 2. A fracturing flowback wastewater degumming treatment device, which completes the process through the coordinated operation of a rotating shaft and a hollow stirring blade. A drive motor drives a sprocket and chain system to make multiple rotating shafts rotate synchronously. At the same time, a chemical injection pump delivers the degumming agent through a rotary joint to the hollow shaft and blade, and finally discharges it from the outlet at the blade end. This realizes the combination of stirring and chemical injection processes in motion, so that the agent can be dynamically and uniformly dispersed in the tank.

[0015] 3. A fracturing flowback fluid wastewater degumming treatment device, which sets a propeller and a discharge wheel in the feed pipe. When the fracturing flowback fluid flows through, the fluid drives the propeller to rotate, which in turn drives the discharge wheel to rotate, causing the degumming agent to flow out from the discharge port. During the flow process, the agent is initially mixed, which helps to accelerate the dispersion and contact of the agent with the wastewater before entering the tank.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is the main view of the present invention. Figure 2 This is a cross-sectional view of the present invention; Figure 3 For the present utility model Figure 2 Structural diagram at point A; Figure 4 For the present utility model Figure 2 Structural diagram at point B; Figure 5 This is a structural diagram of the rear side of the propeller of this utility model.

[0019] Figure label: 1. Tank body; 2. Top cover plate; 3. Feed pipe; 4. Inlet pipe one; 5. Inlet pipe two; 6. Injection pump; 7. Distribution pipe; 8. Rotating shaft; 9. Discharge port; 10. Stirring blade; 11. Discharge port one; 12. Sprocket; 13. Chain; 14. Transmission gear ring; 15. Drive motor; 16. Drive gear; 17. Rotary joint; 18. Propeller; 19. Discharge port two; 20. Discharge wheel. Detailed Implementation

[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] Example 1: As Figure 1-5As shown, a fracturing flowback wastewater degumming treatment device includes a tank 1 with a top cover plate 2 fixedly connected to the top. Multiple rotating shafts 8 are rotatably connected to the middle of the top cover plate 2. A stirring blade 10 is fixedly connected below the rotating shafts 8. The rotating shafts 8 and the stirring blades 10 are hollow inside. A drug outlet 11 is fixedly connected to one end of the stirring blade 10. A drug supply component is fixedly connected above the rotating shafts 8. A feed pipe 3 is fixedly connected to one side of the tank 1. A drug inlet pipe 4 is fixedly connected to the middle of the feed pipe 3. The liquid supply assembly includes a second inlet pipe 5 and a drug injection pump 6. The drug injection pump 6 is fixedly connected above the top cover plate 2, and the second inlet pipe 5 is fixedly connected to the inlet end of the drug injection pump 6. The liquid supply assembly also includes a distribution pipe 7 and a rotary joint 17. The distribution pipe 7 is fixedly connected to the outlet end of the drug injection pump 6, the rotary joint 17 is fixedly connected to one end of the distribution pipe 7, and the other end of the rotary joint 17 is fixedly connected to the rotating shaft 8. When in use, the fracturing flowback fluid enters the tank 1 from the feed pipe 3, while the breaker can enter the fracturing flowback fluid from two directions: the outlet 11 at both ends of the rotating shaft 8 and the inlet pipe 4. The inlet pipe 4 and the inlet pipe 5 are connected to the external chemical tank. When the fracturing flowback fluid enters the feed pipe 3, it first mixes with the breaker flowing out from below the inlet pipe 4. Then, the liquid enters the tank 1. The rotating shaft 8 drives the stirring blade 10 to rotate. At this time, the second batch of breaker flows out from the outlet 11 while it is rotating. Through multiple injections and stirring, the liquid is evenly injected into the fracturing flowback fluid from multiple points. Compared with injecting the breaker at a single point, this is more conducive to mixing and stirring, and improves the breaker effect.

[0023] In this embodiment, a drug outlet 19 is fixedly connected to the lower part of the drug inlet pipe 4. A drug outlet wheel 20 is rotatably connected inside the drug outlet 19. A propeller 18 is rotatably connected to the inner side of the feed pipe 3. The other end of the propeller 18 is fixedly connected to the drug outlet wheel 20. When the fracturing flowback fluid flows through the feed pipe 3, it will drive the propeller 18 to rotate, which in turn will drive the drug outlet wheel 20 to rotate. The edge of the discharge wheel 20 is in close contact with the inner wall of the discharge port 2 19. This allows the breaker to flow out during the rotation of the discharge wheel 20 and to initially mix the breaker into the fracturing flowback fluid during the rotation, which can make the breaker and the fracturing flowback fluid mix more quickly.

[0024] In this embodiment, a discharge port 9 is fixedly connected to the bottom of the tank 1, and an electric switch is located above the discharge port 9, which can be opened and closed periodically to discharge the liquid after the gel has been broken up.

[0025] In this embodiment: during use, the fracturing flowback fluid enters the tank 1 from the feed pipe 3, while the breaker can enter the fracturing flowback fluid from two directions: the outlet 11 at both ends of the rotating shaft 8 and the inlet pipe 4. The inlet pipe 4 and the inlet pipe 5 are connected to the external medicine tank. When the fracturing flowback fluid enters the feed pipe 3, it first mixes with the breaker flowing out from below the inlet pipe 4. Then, the liquid enters the tank 1. The rotating shaft 8 drives the stirring blade 10 to rotate. At this time, the second batch of breaker flows out from the outlet 11 while it rotates. Through multiple injections and stirring, the liquid is evenly injected into the fracturing flowback fluid from multiple points. Compared with injecting the breaker at a single point, it is more conducive to mixing and stirring, and improves the breaker effect. The edge of the discharge wheel 20 is close to the inner wall of the discharge port 29. This allows the breaker to flow out during the rotation of the discharge wheel 20 and to initially mix the breaker into the fracturing flowback fluid during the rotation. This allows the breaker and the fracturing flowback fluid to mix more quickly. There is an electric switch above the discharge port 9, which can be opened and closed periodically to discharge the liquid after the breaker has been broken.

[0026] Example 2: A fracturing flowback fluid wastewater degelatination treatment device. This example is based on Example 1 with the following improvements, such as... Figure 1-5 As shown, In this embodiment, a plurality of sprockets 12 are fixedly connected to the top of the rotating shaft 8. The sprockets 12 on different rotating shafts 8 are connected to each other by a chain 13. A transmission gear ring 14 is fixedly connected to one end of one rotating shaft 8. A drive gear 16 is rotatably connected above the top cover plate 2. A drive motor 15 is fixedly connected above the top cover plate 2. The movable end of the drive motor 15 is fixedly connected to the drive gear 16. When the drive motor 15 is working, it can drive the transmission gear ring 14 to rotate through the drive gear 16, which in turn drives multiple rotating shafts 8 through multiple sprockets 12 and chains 13, allowing the stirring blades 10 to rotate and perform a second injection of medicine while stirring.

[0027] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A fracturing flowback fluid sewage gel breaking treatment device, comprising a tank body (1) with a top cover plate (2) fixedly connected above, characterized in that: The top cover (2) is rotatably connected to multiple rotating shafts (8) in the middle. A stirring blade (10) is fixedly connected below the rotating shaft (8). The rotating shaft (8) and the stirring blade (10) are hollow inside. A medicine outlet (11) is fixedly connected to one end of the stirring blade (10). A medicine supply component is fixedly connected above the rotating shaft (8). A feed pipe (3) is fixedly connected to one side of the tank (1). A medicine inlet pipe (4) is fixedly connected to the middle of the feed pipe (3). The medicine supply component... The component includes a second inlet pipe (5) and a drug injection pump (6). The drug injection pump (6) is fixedly connected above the top cover plate (2), and the second inlet pipe (5) is fixedly connected to the liquid inlet end of the drug injection pump (6). The drug supply component also includes a distribution pipe (7) and a rotary joint (17). The distribution pipe (7) is fixedly connected to the liquid outlet end of the drug injection pump (6), the rotary joint (17) is fixedly connected to one end of the distribution pipe (7), and the other end of the rotary joint (17) is fixedly connected to the rotating shaft (8).

2. The fracturing flowback fluid wastewater degelatination treatment device according to claim 1, characterized in that: The inlet pipe (4) is fixedly connected to the outlet pipe (29) below. The outlet pipe (29) is rotatably connected to the inlet wheel (20). The inlet pipe (3) is rotatably connected to the propeller (18). The other end of the propeller (18) is fixedly connected to the inlet wheel (20).

3. The fracturing flowback fluid sewage gel breaking treatment device according to claim 2, characterized in that: The tank body (1) is fixedly connected to a discharge port (9) at the bottom.

4. The fracturing flowback fluid sewage gel breaking treatment device according to claim 2, characterized in that: Multiple sprockets (12) are fixedly connected to the top of the rotating shaft (8), and the sprockets (12) on different rotating shafts (8) are connected by a chain (13).

5. The fracturing flowback fluid sewage gel breaking treatment device according to claim 4, characterized in that: One end of the rotating shaft (8) on one side is fixedly connected to a transmission gear ring (14), and a drive gear (16) is rotatably connected above the top cover plate (2).

6. The fracturing flowback fluid sewage gel breaking treatment device according to claim 5, characterized in that: A drive motor (15) is fixedly connected above the top cover plate (2), and the movable end of the drive motor (15) is fixedly connected above the drive gear (16).

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