Self-discharging type slurry preparation device

By designing a self-dumping slurry device, automatic unloading and rapid movement is achieved using hydraulic legs and controllers, the problems of inconvenient transportation, inconvenient operation and residual working fluid retention of existing slurry tanks are solved, and work efficiency and material utilization are improved.

CN222534656UActive Publication Date: 2025-02-28CHINA NAT PETROLEUM CORP +1
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Patent Information

Application Number
CN202421315922.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-11
Publication Date
2025-02-28
Estimated Expiration
2034-06-11

AI Technical Summary

Technical Problem

The existing oil drilling slurry tanks are inconvenient to transport and operate, and there is a lot of residual working fluid left in the tank during emptiation, resulting in waste of materials and difficulty in cleaning.

Method used

A self-dumping slurry device is designed, including a controller, a base, a slurry tank and a slurry pry. A wheel is installed under the base, and hydraulic legs are installed on both sides. A stirrer is installed on the top of the slurry tank. The slurry pry includes a weighting funnel, a weighting pump and a slurry pipeline. Automatic unloading and rapid movement are achieved through the lifting and lowering of the hydraulic legs and the control of the controller.

Benefits of technology

The rapid movement of the slurry tank and automatic unloading are realized, which reduces the retention of residual working fluid, improves the convenience of transportation and operation, and reduces material waste and difficulty in cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-unloading slurry preparation device, which relates to the technical field of slurry preparation equipment in oil and gas drilling and comprises a controller, a base, a slurry preparation tank and a slurry preparation pry, wheels are mounted below the base, hydraulic support legs are mounted on two sides of the base, a stirrer is arranged at the top of the slurry preparation tank, and the slurry preparation tank and the slurry preparation pry are mounted on the controller. The proportioning pry comprises a weighting funnel, a weighting pump and a proportioning pipeline which are mounted on the base, a soot blowing interface is formed in the lower part of the weighting funnel, the weighting funnel is communicated with the proportioning tank through a liquid inlet pipeline, working liquid in the proportioning tank is discharged through the weighting pump and an external discharging interface, and the controller controls the hydraulic support legs to stretch out and draw back. The problems that in the prior art, a slurry preparation tank is inconvenient to transport and operate; when the working liquid is emptied, more residues are left in the tank; and the working liquid in the tank cannot be rapidly weighted.
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Description

Technical Field

[0001] The utility model relates to the technical field of slurry mixing equipment in oil and natural gas drilling, in particular to a self-unloading slurry mixing device. Background Art

[0002] At present, the common structure of the mud preparation tank for oil drilling is skid-mounted, which is huge in size and requires a large-tonnage crane to lift it during transportation or transfer. When the mud is emptied, a lot of residual mud remains in the tank. Depending on the working situation, the preparation of oil drilling mud needs to be carried out in multiple sites. Such a mud preparation structure is not only difficult to transport, but also cannot meet the needs of rapid transportation, which reduces work efficiency and increases transportation costs.

[0003] In addition, there is a lot of residual working fluid in the existing slurry mixing tank, which firstly causes waste of mixing materials, and secondly makes cleaning the tank difficult and time-consuming, increases a large amount of hazardous waste, and is contrary to the national environmental protection policy.

[0004] Therefore, it is urgent to design a slurry mixing tank that is more convenient to transport, can quickly change the workplace, and has no residual working fluid to meet the needs. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art that the slurry mixing tank is inconvenient to transport, inconvenient to operate, and a large amount of residual working fluid remains in the tank when emptying, and proposes a self-unloading slurry mixing device, which is convenient for quickly moving the working fluid between multiple well sites and has no working fluid residue.

[0006] In order to achieve the above-mentioned invention object, the technical solution of the utility model is as follows:

[0007] A self-unloading slurry mixing device comprises a controller, a base, and a slurry mixing tank and a slurry mixing skid installed on the base, wheels are installed under the base, hydraulic legs are installed on both sides of the base, an agitator is provided on the top of the slurry mixing tank, and the slurry mixing skid comprises a weighted funnel, a weighted pump and a mixing pipeline installed on the base, a soot blowing interface is provided at the bottom of the weighted funnel, the weighted funnel is connected to the slurry mixing tank through a liquid inlet pipeline, and the material in the slurry mixing tank is discharged through the weighted pump and an external discharge interface, and the controller controls the extension and retraction of the hydraulic legs.

[0008] Furthermore, foldable guardrails are installed around the top of the slurry mixing tank.

[0009] Furthermore, the bottom of the slurry mixing tank is an arc-shaped structure.

[0010] Furthermore, the hydraulic legs include four legs, which are distributed at both ends of the base. The lifting and lowering of the four legs are controlled by a controller, so that the material in the slurry mixing tank is enriched at the inlet of the weighting pump, thereby achieving complete unloading.

[0011] Furthermore, a set of retractable wheels is installed below one end of the base; and a turntable and fork opening matching a forklift are arranged at the other end.

[0012] Furthermore, the wheel is installed below the base at the end of the slurry mixing tank.

[0013] Furthermore, a platform is provided at the weighted funnel, and the platform is detachably connected to the base.

[0014] Furthermore, a ladder is provided on one side of the slurry mixing tank close to the slurry mixing skid, a guard ring is provided on the upper part of the ladder, and protective iron chains are provided at the gaps between the guardrail and the ladder.

[0015] Furthermore, a manhole is provided on the top of the slurry mixing tank.

[0016] Furthermore, a cover plate is provided at the manhole, and the cover plate is flipped and connected to the slurry mixing tank body.

[0017] Beneficial effects of the utility model:

[0018] 1. The utility model includes a slurry mixing tank and a slurry mixing skid. The slurry mixing skid mainly includes mechanisms and components such as a weighted funnel, a weighted pump and a mixing pipeline. The two parts can work relatively independently, effectively shortening the construction operation time and reducing the loss of raw materials. At the same time, hydraulic legs are installed on both sides of the base. The hydraulic legs are controlled by a controller to extend and retract to achieve the rising / descending height of the entire device, and cooperate to achieve automatic unloading of the slurry mixing tank. No crane is required for loading and unloading. The operation is convenient and time-saving, and the residual mud is reduced when the mud is emptied. In addition, wheels are installed under the base to facilitate the movement and transportation of the device. In addition, a bulk barite soot blowing interface is set at the weighted funnel, which can quickly adapt to the bulk barite tank truck to achieve weighted operations and prepare the working fluid of the required density. The soot blowing interface can also be used for the injection of liquid materials.

[0019] Second, in the utility model, folding guardrails are installed around the top of the slurry mixing tank, which is convenient for transportation and also convenient for protecting the safety of workers during operation.

[0020] 3. In the utility model, the bottom of the slurry mixing tank is an arc-shaped structure to prevent the slurry from being deposited on the bottom of the tank and scaling.

[0021] 4. In the utility model, the hydraulic legs include four legs, which are distributed at both ends of the base. The lifting and lowering of the four legs are controlled by a controller to discharge the materials in the slurry mixing tank body. The slurry mixing tank body can be tilted as needed by adjusting the height of the hydraulic legs, so that the working fluid in the tank body is enriched at the inlet of the weighting pump to empty all the materials in the tank.

[0022] 5. In the utility model, a group of retractable wheels are installed under one end of the base; the other end is provided with a turntable and fork opening matching a forklift, preferably with hydraulically retractable wheels, so that a forklift can be used to assist in short-distance transportation and placement.

[0023] 6. In the present invention, the wheels are installed below the base at the end of the slurry mixing tank, which is convenient for transporting and placing the device with a forklift.

[0024] 7. In the utility model, a platform is provided at the weighted funnel, and the platform is detachably connected to the base to facilitate the dosing operation.

[0025] 8. In the utility model, a ladder is provided on the side of the slurry mixing tank close to the slurry mixing skid, a guard ring is provided on the upper part of the ladder, and protective iron chains are provided at the gaps between the guardrail and the ladder to protect the safety of the workers.

[0026] 9. In the utility model, a manhole is provided on the top of the slurry mixing tank, and preferably two manholes are designed to facilitate the staff to enter the slurry mixing tank through the manhole to check the situation in the tank and maintain the equipment.

[0027] 10. In the utility model, a cover plate is provided at the manhole, and the cover plate is flipped and connected to the slurry mixing tank body to prevent debris, rainwater, etc. from entering the slurry mixing tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the self-unloading slurry mixing device in the utility model.

[0029] Figure 2 This is a partial view of the slurry dispensing skid end of the self-unloading slurry dispensing device.

[0030] Figure 3 This is a diagram of the bottom structure of a self-unloading slurry mixing tank.

[0031] Among them, 1. controller; 2. base; 3. slurry mixing tank; 4. slurry mixing skid; 5. wheels; 6. hydraulic legs; 7. agitator; 8. weighted funnel; 9. weighted pump; 10. mixing pipeline; 11. soot blowing interface; 12. liquid inlet pipeline; 13. external discharge interface; 14. guardrail; 15. arc structure; 16. fork; 17. platform; 18. ladder; 19. guard ring; 20. protective chain; 21. manhole; 22. cover plate. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the embodiments, but the implementation manner of the present invention is not limited thereto.

[0033] Example 1

[0034] This embodiment is the most basic implementation method, a self-unloading slurry mixing device, which relates to the technical field of slurry mixing equipment in oil and gas drilling, including a controller 1, a base 2, and a slurry mixing tank 3 and a slurry mixing skid 4 installed on the base 2, wheels 5 are installed under the base 2, hydraulic legs 6 are installed on both sides of the base 2, an agitator 7 is provided on the top of the slurry mixing tank 3, the slurry mixing skid 4 includes a weighted funnel 8, a weighted pump 9 and a mixing pipeline 10 installed on the base 2, a soot blowing interface 11 is provided at the lower part of the weighted funnel 8, bulk barite can be used, and the bulk barite tank truck can be quickly adapted to achieve weighted operation and prepare the working fluid of the required density, and the soot blowing interface 11 can also be used for the injection of liquid materials, the weighted funnel 8 is connected to the slurry mixing tank 3 through the liquid inlet pipeline 12, and the material in the slurry mixing tank 3 is discharged through the weighted pump 9 and the external discharge interface 13, and the controller 1 controls the extension and retraction of the hydraulic legs 6.

[0035] refer to Figure 1 When in use, the self-unloading slurry mixing device controls the extension and retraction of the hydraulic legs 6 through the controller 1 to realize automatic unloading of the slurry mixing device, which is convenient to operate, quick to unload, and reduces the retention of materials in the tank. At the same time, wheels 5 are installed under the base 2 to facilitate the movement and transportation of the slurry mixing device.

[0036] Example 2

[0037] This embodiment is a further optimization of the embodiment 1, the difference is that:

[0038] refer to Figure 1 A foldable guardrail 14 is installed around the top of the slurry mixing tank 3.

[0039] Example 3

[0040] Compared with Embodiment 1-2, this embodiment is different in that:

[0041] refer to Figure 3 The bottom of the slurry mixing tank 3 is an arc-shaped structure 15, which prevents the slurry from being deposited and scaling at the bottom of the tank and also facilitates the discharge of materials.

[0042] Example 4

[0043] Compared with Embodiments 1-3, this embodiment is different in that:

[0044] refer to Figure 1 Or 2, the hydraulic legs 6 include four legs, which are distributed at both ends of the base 2. The lifting and lowering of the four legs 6 are controlled by the controller 1 to discharge the material in the slurry mixing tank 3. That is, by adjusting the height of the hydraulic legs 6, the slurry mixing tank 3 can be tilted as needed to facilitate emptying all the materials in the tank.

[0045] Example 5

[0046] Compared with Embodiments 1-4, this embodiment is different in that:

[0047] refer to Figure 1 Or 2, a group of retractable wheels 5 are installed under one end of the base 2; the other end is provided with a turntable and fork opening 16 matching a forklift, so that a forklift can be used to assist in short-distance transportation and placement.

[0048] Example 6

[0049] This embodiment is a further optimization of the embodiment 5, and the difference is that the wheel 5 is installed below the base 2 at the end of the slurry mixing tank 3.

[0050] Example 7

[0051] Compared with Embodiments 1-6, this embodiment is different in that:

[0052] refer to Figure 1 Or 2, a platform 17 is provided at the weighted funnel 8 to facilitate the staff to dosing operations, and the platform 17 is detachably connected to the base 2 to facilitate the transportation of the slurry preparation device.

[0053] Example 8

[0054] Compared with Embodiments 1-7, this embodiment is different in that:

[0055] refer to Figure 2 A ladder 18 is provided on one side of the slurry mixing tank 3 close to the slurry mixing skid 4, a guard ring 19 is provided on the upper part of the ladder 18, and a protective iron chain 20 is provided at the gap between the guardrail 14 and the ladder 18.

[0056] Example 9

[0057] The difference between this embodiment and embodiment 1-8 is that, Figure 1 A manhole 21 is provided on the top of the slurry distribution tank 3.

[0058] Example 10

[0059] This embodiment is a further optimization of embodiment 5, the difference being that:

[0060] refer to Figure 1 A cover plate 22 is provided at the manhole 21, and the cover plate 22 is connected to the slurry mixing tank 3 by flipping.

[0061] Embodiment 11

[0062] This embodiment takes a self-unloading slurry mixing device with a better structure as an example to further illustrate this solution.

[0063] refer to Figure 1-3The device includes a controller 1, a base 2, and a slurry mixing tank 3 and a slurry mixing skid 4 installed on the base 2, a wheel 5 is installed under the base 2, hydraulic legs 6 are installed on both sides of the base 2, a 15kW double-layer impeller agitator 7 is provided on the top of the slurry mixing tank 3, the slurry mixing skid 4 includes a weighted funnel 8 installed on the base 2, a 75kW weighted pump 9 and a batching pipeline 10, a soot blowing interface 11 is provided at the lower part of the weighted funnel 8, the weighted funnel 8 is connected to the slurry mixing tank 3 through a liquid inlet pipeline 12, and the material in the slurry mixing tank 3 is discharged through the weighted pump 9 and a 2.7-inch external discharge interface 13, and the controller 1 controls the extension and retraction of the hydraulic legs 6.

[0064] In this embodiment, the controller 1 is a PLC, which automatically monitors the tilt angles of the slurry mixing tank 3 in the horizontal and vertical directions, and automatically adjusts the heights of the four legs accordingly, so that the lifting process always remains stable.

[0065] In this embodiment, foldable guardrails 14 that can be flipped are installed around the top of the slurry mixing tank 3.

[0066] In this embodiment, the bottom of the slurry mixing tank 3 is an arc-shaped structure 15.

[0067] In this embodiment, the hydraulic legs 6 include four, and the four hydraulic legs 6 are distributed at both ends of the base 2. The lifting and lowering of the four hydraulic legs 6 are controlled by the controller 1 to discharge the material in the slurry mixing tank 3. Specifically, the hydraulic legs 6 are raised / lowered by themselves, so that the slurry mixing tank 3 can be self-loaded and unloaded without a crane. The minimum length is suitable for 9.6m truck transportation, and larger trucks can also be used for transportation. By adjusting the height of the hydraulic legs 6, the tank body of the slurry mixing tank 3 can be tilted as needed to facilitate emptying all the liquid in the tank.

[0068] In this embodiment, a pair of hydraulically retractable wheels 5 are installed under one end of the base 2; the other end is provided with a turntable and fork 16 suitable for a forklift. The wheels 5 are installed under the base 2 at the end of the slurry mixing tank 3, and a forklift can be used to assist in short-distance transportation and placement.

[0069] In this embodiment, a platform 17 is provided at the weighted funnel 8 to facilitate the dosing operation, and the platform 17 is detachably connected to the base 2 .

[0070] In this embodiment, a ladder 18 is provided on the side of the slurry mixing tank 3 close to the slurry mixing skid 4, a guard ring 19 is provided on the upper part of the ladder 18, and a protective iron chain 20 is provided at the gap between the guardrail 14 and the ladder 18.

[0071] In this embodiment, two manholes 21 are provided on the top of the slurry mixing tank 3, and a cover plate 22 is provided at the manhole 21. The cover plate 22 is flip-connected to the tank body of the slurry mixing tank 3, and the cover plate 22 can be flipped open. A ladder for descending the tank is provided at the manhole 21. All openings on the top of the slurry mixing tank 3 are designed with a structure to prevent rainwater from flowing into the tank.

[0072] When using, refer to Figure 1 Two hydraulic legs 6 are installed at each end of the self-unloading slurry mixing device, and the hydraulic legs 6 are fixed on the extension arm. Two retractable wheels 5 are installed on the left end, and a weighted pump 9, a weighted funnel 8, pipelines, etc. are installed on the right end. A stirrer 7 is installed on the top of the tank, and a guardrail 14 is installed around the tank. When loading, the oil cylinders of the four hydraulic legs 6 are extended so that the bottom of the tank can reach 1600 mm from the ground. At the same time, the extension arm is unfolded so that the distance between the two hydraulic legs 6 at both ends reaches 3320 mm, so that the transport vehicle can easily pour into the lower part of the slurry mixing tank 3 to complete the loading. When the wheel 5 is extended and in contact with the ground to support the entire slurry mixing device, the right end of the slurry mixing device can be lifted by a forklift for a short distance movement.

[0073] refer to Figure 2 This is the detailed installation of the right end of the slurry mixing device. A weighted funnel 8 is installed next to the weighted pump 9, and the discharge pipeline of the weighted pump 9 is connected to the liquid inlet pipeline 12 of the weighted funnel 8. In order to facilitate the pouring of medicine into the weighted funnel 8, a platform 17 is installed next to the weighted funnel 8. In order to work on the tank, a vertical ladder 18 is installed on the side of the slurry mixing tank 3. For safety reasons when climbing onto the tank surface, a guard ring 19 is installed on the upper part of the vertical ladder 18. A soot blowing interface 11 connected to the soot blowing receiving device is provided below the funnel mouth of the weighted funnel 8, and an external discharge interface 13 is provided on the discharge pipeline of the weighted pump 9.

[0074] refer to Figure 3 In order to reduce the residual working fluid in the tank when discharging mud, the bottom of the tank is arc-shaped. Figure 1 When the oil cylinder of the left end hydraulic support leg 6 extends longer and the oil cylinder of the right end hydraulic support leg 6 extends shorter, the left end of the slurry distribution tank 3 is tilted, which will cause the working fluid in the tank to concentrate at the suction port position of the weighting pump 9, which is conducive to emptying the liquid in the tank.

[0075] This self-unloading slurry distribution device also makes it easy for one set of equipment to serve multiple well sites at the same time, thereby improving equipment utilization.

Claims

1. A self-unloading slurry mixing device, characterized in that: The invention comprises a controller (1), a base (2), and a slurry mixing tank (3) and a slurry mixing skid (4) mounted on the base (2); wheels (5) are mounted below the base (2); hydraulic legs (6) are mounted on both sides of the base (2); a stirrer (7) is mounted on the top of the slurry mixing tank (3); the slurry mixing skid (4) comprises a weighted funnel (8), a weighted pump (9) and a mixing pipeline (10) mounted on the base (2); a soot blowing interface (11) is arranged at the bottom of the weighted funnel (8); the weighted funnel (8) is connected to the slurry mixing tank (3) through a liquid inlet pipeline (12); the material in the slurry mixing tank (3) is discharged through the weighted pump (9) and an external discharge interface (13); and the controller (1) controls the extension and retraction of the hydraulic legs (6).

2. A self-unloading slurry mixing device according to claim 1, characterized in that: Foldable guardrails (14) are installed around the top of the slurry mixing tank (3).

3. A self-unloading slurry mixing device according to claim 1, characterized in that: The bottom of the slurry mixing tank (3) is an arc-shaped structure (15).

4. A self-unloading slurry mixing device according to claim 1, characterized in that: The hydraulic legs (6) include four legs, which are distributed at both ends of the base (2). The lifting and lowering of the four legs (6) are controlled by a controller (1), so that the material in the slurry mixing tank (3) is concentrated at the inlet of the weighted pump (9), and then all the material is pumped out of the device.

5. A self-unloading slurry mixing device according to claim 1, characterized in that: A set of retractable wheels (5) is installed below one end of the base (2); a turntable and fork opening (16) matching a forklift are arranged at the other end.

6. A self-unloading slurry mixing device according to claim 2, characterized in that: The wheel (5) is installed below the base (2) at the end of the slurry mixing tank (3).

7. A self-unloading slurry mixing device according to claim 1, characterized in that: A platform (17) is provided at the weighted funnel (8), and the platform (17) is detachably connected to the base (2).

8. A self-unloading slurry mixing device according to claim 2, characterized in that: A ladder (18) is provided on one side of the slurry mixing tank (3) close to the slurry mixing skid (4), a guard ring (19) is provided on the upper part of the ladder (18), and a protective iron chain (20) is provided at the gap between the guardrail (14) and the ladder (18).

9. A self-unloading slurry mixing device according to claim 1, characterized in that: A manhole (21) is provided on the top of the slurry mixing tank (3).

10. A self-unloading slurry mixing device according to claim 9, characterized in that: A cover plate (22) is provided at the manhole (21), and the cover plate (22) is connected to the tank body of the slurry mixing tank (3) in an overturned manner.