High-efficiency batching device based on cross-linking agent for fracturing

Abstract

The utility model relates to the technical field of cross-linking agent production, in particular to a high-efficiency batching device based on a cross-linking agent for fracturing. The high-efficiency batching device based on the cross-linking agent for fracturing comprises a material guide pipe A and a material guide pipe B, wherein the material guide pipe A and the material guide pipe B are fixedly connected through a butt joint bracket; a middle connecting pipe is installed between the material guiding pipe A and the material guiding pipe B, and a filter screen is installed on the middle connecting pipe. According to the cross-linking agent high-efficiency batching device based on fracturing, the replaceable filter screen is arranged at the top of the middle linking pipe, sediment particles in a zirconium / titanium cross-linking agent can be rapidly intercepted, a fracturing pump is prevented from being blocked, the filter screen is convenient to disassemble and assemble through the design that the mounting ring is connected with the limiting rod in a sleeved mode, and the working efficiency is improved. Due to the design of a lantern ring and a reset piece, the middle connecting pipe can slide along the material guide pipe A, the filter screen can be replaced by pulling a pull handle downwards, a spring provides an automatic reset function, and stability during operation is guaranteed through cooperation of a fastening screw rod and a positioning hole.

Description

Technical Field

[0001] This utility model relates to the field of crosslinking agent production technology, and in particular to a high-efficiency batching device for crosslinking agents used in fracturing. Background Technology

[0002] In oil and gas well fracturing operations, crosslinking agents are a key additive, mainly used to modify the physicochemical properties of fracturing fluids, thereby optimizing the fracturing effect. The preparation of crosslinking agents requires mixing various raw materials through batching equipment.

[0003] In existing technologies, for example, patent number CN217662651U uses multiple stirring structures to achieve thorough stirring and improve the mixing effect; while patent number CN 222677803U uses spiral blades to prevent raw material agglomeration and blockage. However, the above devices lack an efficient filtration mechanism for the problem of zirconium / titanium crosslinking agents easily forming precipitates or colloidal particles, which can easily lead to blockage of fracturing pumps or downhole tools.

[0004] Therefore, it is necessary to provide a new high-efficiency batching device based on fracturing crosslinking agent to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a high-efficiency batching device based on fracturing crosslinking agent.

[0006] The high-efficiency feeding device based on fracturing crosslinking agent provided by this utility model includes a feeding tube A and a feeding tube B. The feeding tube A and the feeding tube B are coaxially arranged and fixedly connected by a docking bracket, and the distance between the feeding tube A and the feeding tube B forms a central cavity structure.

[0007] A central connecting pipe is installed between the material guide A pipe and the material guide B pipe. An upper insert pipe is fixedly installed at the top of the central connecting pipe and is inserted into the material guide A pipe and slidably connected to the material guide A pipe. A lower insert pipe is fixedly installed at the bottom of the central connecting pipe and is inserted into the material guide B pipe and slidably connected to the material guide B pipe.

[0008] The top of the upper insertion tube is provided with an annular groove, and a filter screen is installed in the annular groove.

[0009] Preferably, side connectors are fixedly installed on both sides of the central connecting pipe, and a collar is fixedly installed between the two side connectors. The collar is sleeved on the guide pipe A and slidably connected to the guide pipe A.

[0010] Preferably, the inner ring wall of the collar is fixedly equipped with two symmetrically distributed guide protrusions, and the two guide protrusions are respectively inserted into the mounting grooves opened on both sides of the outer wall of the guide tube A and slidably connected to the mounting grooves.

[0011] Preferably, a reset component is installed in the mounting groove, and the reset component includes a sliding rod. The sliding rod is fixedly installed in the mounting groove, passes through the guide protrusion and is slidably connected to the guide protrusion, and a spring is sleeved on the sliding rod. One end of the spring is fixedly connected to the inner bottom wall of the mounting groove, and the other end of the spring is fixedly connected to the lower surface of the guide protrusion.

[0012] Preferably, the guide tube A has a positioning hole, and a threaded fastening screw is inserted into the threaded through hole on the collar.

[0013] Preferably, a plurality of ring-shaped limiting rods are fixedly installed inside the annular groove.

[0014] Preferably, the outer ring of the filter screen is fixedly mounted with an installation ring, and the installation ring has a plurality of annularly distributed socket holes.

[0015] Preferably, a handle is fixedly installed on the central connecting pipe.

[0016] Preferably, a flange is fixedly installed on the top of the feed guide A pipe.

[0017] Compared with related technologies, the high-efficiency batching device based on fracturing crosslinking agent provided by this utility model has the following advantages:

[0018] This invention features a replaceable filter screen at the top of the central tube, which can quickly intercept precipitated particles in the zirconium / titanium crosslinking agent, preventing blockage of the fracturing pump. The filter screen is easily installed and removed through the sleeve design of the mounting ring and the limiting rod. The design of the sleeve and the reset component allows the central tube to slide along the feed guide A tube. The filter screen can be replaced by pulling down the handle. The spring provides an automatic reset function, and the cooperation between the fastening screw and the positioning hole ensures stable operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a preferred embodiment of the high-efficiency batching device for fracturing crosslinking agent provided by this utility model.

[0020] Figure 2 for Figure 1 The diagram shows the structure of material guide tube A and material guide tube B.

[0021] Figure 3 for Figure 1 The diagram shows the installation structure of the filter screen inside the central connecting pipe.

[0022] Figure 4 for Figure 3 The diagram shows the structure of the connecting pipe.

[0023] Figure 5 for Figure 3The diagram shows the structure of the filter screen.

[0024] The following are the labels in the diagram: 1. Guide tube A; 1a. Mounting groove; 1b. Positioning hole; 2. Guide tube B; 1-2. Connecting bracket; 1-2a. Central cavity; 3. Central tube; 31. Upper insertion tube; 31a. Annular groove; 311. Limiting rod; 32. Lower insertion tube; 33. Pull handle; 4. Side bracket; 5. Collar; 51. Guide protrusion; 52. Fastening screw; 6. Reset component; 61. Sliding rod; 62. Spring; 7. Filter screen; 71. Mounting ring; 71a. Socket hole; 8. Flange. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] Please see Figures 1 to 5 This utility model provides a high-efficiency batching device based on fracturing crosslinking agent, which includes a feed A pipe 1, a feed B pipe 2, and a central connecting pipe 3.

[0028] In the embodiments of this utility model, please refer to Figures 1 to 5 A flange 8 is fixedly installed on the top of the guide pipe A 1. The guide pipe A 1 and the guide pipe B 2 are coaxially arranged and fixedly connected by the docking bracket 1-2. The distance between the guide pipe A 1 and the guide pipe B 2 forms the middle connecting cavity 1-2a structure. A middle connecting pipe 3 is installed between the guide pipe A 1 and the guide pipe B 2. An upper insert pipe 31 is fixedly installed on the top of the middle connecting pipe 3. The upper insert pipe 31 is inserted into the guide pipe A 1 and slidably connected to the guide pipe A 1. A lower insert pipe 32 is fixedly installed on the bottom of the middle connecting pipe 3. The lower insert pipe 32 is inserted into the guide pipe B 2 and slidably connected to the guide pipe B 2.

[0029] The top of the upper insertion tube 31 is provided with an annular groove 31a, and a filter screen 7 is installed in the annular groove 31a. Specifically, several annularly distributed limiting rods 311 are fixedly installed in the annular groove 31a, and an installation ring 71 is fixedly installed on the outer ring wall of the filter screen 7. The installation ring 71 is provided with multiple annularly distributed socket holes 71a.

[0030] It should be noted that: the feed pipe A1 is fixedly installed on the discharge pipe of the feed tank using flange 8, while the feed pipe B2 is connected to the output end of the fracturing pump. The filter screen 7 installed in the central connecting pipe 3 can quickly filter the precipitate or colloidal particles of zirconium and titanium crosslinking agent to avoid clogging the fracturing pump or downhole tools.

[0031] In this embodiment: the socket 71a of the mounting ring 71 is fitted onto the limiting rod 311 to complete the installation of the filter screen 7 on the upper insertion tube 31.

[0032] In the embodiments of this utility model, please refer to Figures 1 to 5 Side brackets 4 are fixedly installed on both sides of the central connecting pipe 3, and a collar 5 is fixedly installed between the two side brackets 4. The collar 5 is sleeved on the guide pipe A 1 and slidably connected to the guide pipe A 1. Two symmetrically distributed guide protrusions 51 are fixedly installed on the inner ring wall of the collar 5. The two guide protrusions 51 are respectively inserted into the mounting grooves 1a opened on the outer walls of both sides of the guide pipe A 1 and slidably connected to the mounting grooves 1a. A reset component 6 is installed in the mounting groove 1a, and the reset component 6 includes a sliding rod 61. The sliding rod 61 is fixedly installed in the mounting groove 1a. The sliding rod 61 passes through the guide protrusion 51 and is slidably connected to the guide protrusion 51. A spring 62 is sleeved on the sliding rod 61. One end of the spring 62 is fixedly connected to the inner bottom wall of the mounting groove 1a, and the other end of the spring 62 is fixedly connected to the lower surface of the guide protrusion 51.

[0033] It should be noted that: pulling down the central connecting tube 3 causes the upper insertion tube 31 at the top of the central connecting tube 3 to slide out from the bottom of the guide tube A 1. At the same time, the guide protrusion 51 slides down along the sliding rod 61 and compresses the spring 62. Then, after removing the filter screen 7 and replacing it with a new filter screen 7, the central connecting tube 3 is released. Therefore, under the action of the spring 62, the central connecting tube 3 drives the upper insertion tube 31 to slide back quickly into the guide tube A 1. At this time, tightening the fastening screw 52 drives the fastening screw 52 to screw into the positioning hole 1b. Thus, the filter screen 7 can be quickly replaced. The operation is simple and convenient.

[0034] In this embodiment, the side connector 4, together with the collar 5 and the guide protrusion 51, greatly improves the stability of the central connecting pipe 3 when sliding along the guide pipe A 1.

[0035] The lower insertion tube 32 is longer than the upper insertion tube 31, so that after the upper insertion tube 31 slides back to the guide tube A 1, the lower insertion tube 32 is still stably inserted in the guide tube B 2.

[0036] It is worth noting that the docking bracket 1-2 and the side connecting bracket 4 are coplanar, and the docking bracket 1-2 is located on the periphery of the side connecting bracket 4.

[0037] Furthermore, a positioning hole 1b is provided on the feed guide A pipe 1, and a threaded fastening screw 52 is inserted into the threaded through hole on the collar 5. The fastening screw 52 is provided so that after the filter screen 7 is installed, tightening the fastening screw 52 will drive the fastening screw 52 into the positioning hole 1b, thereby locking the central connecting pipe 3 and preventing the central connecting pipe 3 from sliding between the feed guide A pipe 1 and the feed guide B pipe 2 due to the impact of the crosslinking agent on the filter screen 7.

[0038] Furthermore, a handle 33 is fixedly installed on the central connecting pipe 3 to facilitate pulling down the central connecting pipe 3.

[0039] In this application, a replaceable filter screen 7 is installed at the top of the central tube 3 to quickly intercept precipitated particles in the zirconium / titanium crosslinking agent, thus preventing clogging of the fracturing pump. The filter screen 7 is easily installed and removed through the sleeve design of the mounting ring 71 and the limiting rod 311. The design of the collar 5 and the reset piece 6 allows the central tube 3 to slide along the guide tube A 1. The filter screen 7 can be replaced by pulling down the handle 33. The spring 62 provides an automatic reset function, and the cooperation between the fastening screw 52 and the positioning hole 1b ensures stable operation.

[0040] It is worth noting that: because the sliding connection between the central connecting pipe 3 and the guide pipe A 1 and guide pipe B 2 may leak due to long-term wear, a sealing ring is added at the interface of the guide pipe A 1 and guide pipe B 2 (or a wear-resistant coating is used to improve the sealing of the sliding parts). In order to avoid the potential for fatigue failure of the spring 62 due to long-term compression, the spring 62 is made of a high-elasticity alloy material.

[0041] The working principle of the high-efficiency batching device for fracturing crosslinking agent provided by this utility model is as follows:

[0042] The feed guide pipe A1 is fixedly installed on the discharge pipe of the batching tank using flange 8, while the feed guide pipe B2 is connected to the output end of the fracturing pump. When installing the filter screen 7, after loosening the fastening screw 52, ​​pull down the connecting pipe 3, so that the upper insertion pipe 31 at the top of the connecting pipe 3 slides out from the bottom of the feed guide pipe A1. At the same time, the guide protrusion 51 slides down along the sliding rod 61 and compresses the spring 62. Then, remove the filter screen 7 and replace it with a new filter screen 7 (or clean the filter screen 7). Then loosen the connecting pipe 3. Therefore, under the action of the spring force of the spring 62, the connecting pipe 3 drives the upper insertion pipe 31 to slide back quickly into the feed guide pipe A1. At this time, tighten the fastening screw 52 to drive the fastening screw 52 into the positioning hole 1b. Thus, the filter screen 7 can be quickly replaced. The operation is simple and convenient.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-efficiency feeding device based on fracturing crosslinking agent, comprising a feed A pipe (1) and a feed B pipe (2), wherein the feed A pipe (1) and the feed B pipe (2) are coaxially arranged and fixedly connected by a docking bracket (1-2), and the spacing between the feed A pipe (1) and the feed B pipe (2) constitutes a central cavity (1-2a) structure, characterized in that: A connecting pipe (3) is installed between the material guide A pipe (1) and the material guide B pipe (2). An upper insert pipe (31) is fixedly installed at the top of the connecting pipe (3), and the upper insert pipe (31) is inserted into the material guide A pipe (1) and slidably connected to the material guide A pipe (1). A lower insert pipe (32) is fixedly installed at the bottom of the connecting pipe (3), and the lower insert pipe (32) is inserted into the material guide B pipe (2) and slidably connected to the material guide B pipe (2). The top of the upper insertion tube (31) is provided with an annular groove (31a), and a filter screen (7) is installed in the annular groove (31a).

2. The high-efficiency batching device based on fracturing crosslinking agent according to claim 1, characterized in that, The two side walls of the central connecting pipe (3) are fixedly installed with side connecting brackets (4), and a collar (5) is fixedly installed between the two side connecting brackets (4). The collar (5) is sleeved on the guide pipe A (1) and slidably connected to the guide pipe A (1).

3. The high-efficiency batching device based on fracturing crosslinking agent according to claim 2, characterized in that, The inner ring wall of the collar (5) is fixedly equipped with two symmetrically distributed guide protrusions (51), and the two guide protrusions (51) are respectively inserted into the mounting grooves (1a) opened on both sides of the outer wall of the guide tube A (1) and slidably connected to the mounting grooves (1a).

4. The high-efficiency batching device based on fracturing crosslinking agent according to claim 3, characterized in that, A reset component (6) is installed in the mounting groove (1a), and the reset component (6) includes a sliding rod (61). The sliding rod (61) is fixedly installed in the mounting groove (1a). The sliding rod (61) passes through the guide protrusion (51) and is slidably connected to the guide protrusion (51). A spring (62) is sleeved on the sliding rod (61). One end of the spring (62) is fixedly connected to the inner bottom wall of the mounting groove (1a), and the other end of the spring (62) is fixedly connected to the lower surface of the guide protrusion (51).

5. The high-efficiency batching device based on fracturing crosslinking agent according to claim 2, characterized in that, The guide tube A (1) is provided with a positioning hole (1b), and a threaded fastening screw (52) is inserted into the threaded through hole on the collar (5).

6. The high-efficiency batching device based on fracturing crosslinking agent according to claim 1, characterized in that, Several ring-shaped limiting rods (311) are fixedly installed inside the annular groove (31a).

7. The high-efficiency batching device based on fracturing crosslinking agent according to claim 6, characterized in that, The outer ring wall of the filter screen (7) is fixedly installed with an installation ring (71), and the installation ring (71) has a plurality of annularly distributed socket holes (71a).

8. The high-efficiency batching device based on fracturing crosslinking agent according to claim 1, characterized in that, A handle (33) is fixedly installed on the central connecting pipe (3).

9. The high-efficiency batching device based on fracturing crosslinking agent according to claim 1, characterized in that, A flange (8) is fixedly installed on the top of the feed guide pipe A (1).

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