Slurry separation device for natural gas drilling engineering

Abstract

The utility model discloses a mud separating device for natural gas drilling engineering, which comprises a vibrating screen, two groups of symmetrical hydraulic pumps are arranged on the periphery of the side surface of the vibrating screen, the bottoms of the hydraulic pumps are connected with a first fixing support, a material passing hopper is arranged in the first fixing support, and a second fixing support is arranged on the upper portion of the vibrating screen. And two symmetrical separation rollers are arranged in one side of the second fixing support, a water tank is arranged at the top of the second fixing support, mud pumped out in the natural gas drilling engineering can be effectively separated, and coarse sand and fine sand in the mud can be completely separated.

Description

Technical Field

[0001] The utility model relates to a mud separation device used in natural gas drilling engineering, belonging to the technical field of separation. Background Art

[0002] In the process of drilling and pile grouting in the oil drilling industry, drilling fluid is an indispensable product. Its performance parameters mainly include: density, viscosity, yield value, static shear force, water loss, mud cake thickness, sand content, pH, solid phase, oil-water content, etc. Drilling fluid is the blood of drilling. Its main functions are: 1) carrying and suspending rock cuttings; 2) cooling and lubricating drill bits and drilling tools; 3) cleaning and flushing the bottom of the well to facilitate drilling; 4) using the pressure of the drilling fluid column to prevent blowout; 5) protecting the well wall and preventing the well wall from collapsing; 6) transmitting power to the downhole power drilling tool. In the existing drilling and pile grouting process, the drilling fluid will directly pour the rock cuttings out of the bottom of the well into the mud pool for storage, and then be loaded and transported away. The waste mud and sand are not separated sufficiently, and the mud and sand cannot be accurately distinguished into coarse sand and fine sand, resulting in waste and reuse of sand and stone. Utility Model Content

[0003] The technical problem to be solved by the utility model is: the purpose is to solve the problems of insufficient mud filtration, insufficient mud separation and unformed mud and sand separation in natural gas drilling engineering.

[0004] (II) Technical solution

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a vibrating screen, wherein the vibrating screen is provided with two symmetrical groups of hydraulic pumps around the sides, and the bottom of the hydraulic pump is connected to a first fixed bracket, a hopper is provided in the first fixed bracket, a second fixed bracket is provided on the upper part of the vibrating screen, two symmetrical separation rollers are provided inside one side of the second fixed bracket, and a water tank is provided on the top of the second fixed bracket.

[0006] Furthermore, two first stirring shafts parallel to each other are provided in the vibrating screen, a second stirring shaft is provided in the hopper, a group of motors are provided on both sides of the first fixed bracket, a downwardly inclined discharge trough is provided on the outside of the vibrating screen, a sieve plate is provided inside the vibrating screen, and a sieve bucket is provided inside the vibrating screen at the bottom of the separation roller.

[0007] Furthermore, bearings are respectively provided at the ends of the first stirring shaft and the second stirring shaft, and the motor drives the first stirring shaft and the second stirring shaft through a belt.

[0008] Furthermore, the sieve plate and the sieve bucket surface are respectively provided with a plurality of filtering holes.

[0009] Furthermore, a plurality of stirring paddles are welded on the surfaces of the first stirring shaft and the second stirring shaft respectively.

[0010] Furthermore, a rotating paddle is provided inside the separation roller, water inlets are provided on both sides of the separation roller, and the separation roller is connected to the water tank through a pipeline, and a conical filter tank is provided at the bottom of the separation roller.

[0011] Furthermore, the hydraulic pump is connected to the vibrating screen via a rib plate, and a connecting plate is provided at the bottom of the hydraulic pump and is fixedly connected to the first fixing bracket.

[0012] Furthermore, filter cotton is layered inside the water tank.

[0013] Beneficial effects of the utility model:

[0014] (1) In existing natural gas drilling projects, mud separation is insufficient. This equipment can fully separate the extracted mud and separate the coarse sand from the fine sand, thereby improving the subsequent use of the mud.

[0015] (2) The first stirring shaft and the second stirring shaft in the separation device are provided with a plurality of stirring paddles to separate and screen the silt to prevent the silt from agglomerating prematurely.

[0016] (3) The water tank is equipped with multiple layers of filter cotton to improve the quality of filtered water and reduce environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is the left isometric view of the utility model;

[0019] Figure 3 It is a right isometric view of the utility model;

[0020] Figure 4 This is a cross-sectional view of the utility model.

[0021] In the figure: 1-vibrating screen, 2-hopper, 3-first fixed support, 4-hydraulic pump, 5-second fixed support, 6-water tank, 7-separation roller, 8-first stirring shaft, 9-second stirring shaft, 10-motor, 11-sieve plate, 12-sieve bucket, 13-belt, 14-discharge trough, 15-stirring paddle;

[0022] 4a-rib plate, connecting plate;

[0023] 7a-rotating paddle, 7b-water inlet, 7c-filter tank. DETAILED DESCRIPTION

[0024] The present invention will now be described in further detail in conjunction with specific embodiments and the accompanying drawings. The following embodiments may enable those skilled in the art to more fully understand the present invention, but these embodiments are not intended to limit the scope of protection of the present invention. The "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] See also Figures 1 to 4 The utility model provides a technical solution: including a vibrating screen 1, the vibrating screen 1 is provided with two symmetrical groups of hydraulic pumps 4 around the sides, and the bottom of the hydraulic pump 4 is connected to the first fixed bracket 3, the first fixed bracket 3 is provided with a hopper 2, the upper part of the vibrating screen 1 is provided with a second fixed bracket 5, one side of the second fixed bracket 5 is provided with two symmetrical separation rollers 7, and the top of the second fixed bracket 5 is provided with a water tank 6.

[0026] See also Figures 1 to 4 Two first stirring shafts 8 parallel to each other are provided in the vibrating screen 1, a second stirring shaft 9 is provided in the hopper 2, a group of motors 10 are provided on both sides of the first fixed bracket 3, a downwardly inclined discharge chute 14 is provided on the outside of the vibrating screen 1, a sieve plate 11 is provided inside the vibrating screen 1, and a sieve bucket 12 is provided at the bottom of the separation roller 7 inside the vibrating screen.

[0027] See also Figures 1 to 4 The first stirring shaft 8 and the second stirring shaft 9 are respectively provided with bearings at their ends, and the motor 10 drives the first stirring shaft 8 and the second stirring shaft 9 through a belt 13 .

[0028] See also Figures 1 to 4 A plurality of filtering holes are respectively provided on the surfaces of the sieve plate 11 and the sieve bucket 12.

[0029] See also Figures 1 to 4 A plurality of stirring paddles 15 are welded on the surfaces of the first stirring shaft 8 and the second stirring shaft 9 respectively.

[0030] See also Figures 1 to 4 A rotating paddle 7a is provided inside the separation roller 7, water inlets 7b are provided on both sides of the separation roller 7, and the separation roller 7 is connected to the water tank 6 through a pipeline, and a conical filter tank 7c is provided at the bottom of the separation roller 7.

[0031] See also Figures 1 to 4 The hydraulic pump 4 is connected to the vibrating screen 1 through a rib plate 4a, and a connecting plate 4b is provided at the bottom of the hydraulic pump 4 and fixedly connected to the first fixed bracket 3.

[0032] See also Figures 1 to 4 , filter cotton is arranged in layers inside the water tank 6 .

[0033] Working principle: Figures 1 to 4 As shown, muddy water enters the water inlet 7b through a pipeline, and the silt and water are discharged into the water tank 6 and the screen bucket 12 respectively through the rotating paddle 7a inside the separation roller 7. The silt enters the vibrating screen 1 through the screen bucket 12, and is then screened by the screen plate 11. The vibrating screen 1 is vibrated and screened by the hydraulic pump 4. The coarse sand is discharged from the discharge chute 14 through the first stirring shaft 8, and the fine sand is filtered through the screen plate 11 to the hopper 2. The hopper 2 is provided with a second stirring shaft 9, and the second stirring shaft 9 breaks up the fine sand.

[0034] With the above-mentioned ideal embodiment of the utility model as inspiration, through the above-mentioned description, relevant staff can make various changes and modifications without deviating from the technical idea of ​​the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model. The technical scope of the utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A mud separation device for natural gas drilling engineering, characterized in that: The invention comprises a vibrating screen (1), wherein two groups of hydraulic pumps (4) are symmetrically arranged around the sides of the vibrating screen (1), and the bottom of the hydraulic pump (4) is connected to a first fixed bracket (3), a hopper (2) is arranged inside the first fixed bracket (3), a second fixed bracket (5) is arranged on the top of the vibrating screen (1), two symmetrical separation rollers (7) are arranged inside one side of the second fixed bracket (5), and a water tank (6) is arranged on the top of the second fixed bracket (5).

2. A mud separation device for natural gas drilling engineering according to claim 1, characterized in that: The vibrating screen (1) is provided with two mutually parallel first stirring shafts (8), the hopper (2) is provided with a second stirring shaft (9), a group of motors (10) are provided on both sides of the first fixed bracket (3), a downwardly inclined discharge trough (14) is provided on the outside of the vibrating screen (1), a sieve plate (11) is provided inside the vibrating screen (1), and a sieve bucket (12) is provided inside the vibrating screen at the bottom of the separation roller (7).

3. A mud separation device for natural gas drilling engineering according to claim 2, characterized in that: The ends of the first stirring shaft (8) and the second stirring shaft (9) are respectively provided with bearings, and the motor (10) drives the first stirring shaft (8) and the second stirring shaft (9) via a belt (13).

4. A mud separation device for natural gas drilling engineering according to claim 2, characterized in that: The surfaces of the sieve plate (11) and the sieve bucket (12) are respectively provided with a plurality of filtering holes.

5. The mud separation device for natural gas drilling engineering according to claim 2 is characterized in that: A plurality of stirring paddles (15) are respectively welded to the surfaces of the first stirring shaft (8) and the second stirring shaft (9).

6. The mud separation device for natural gas drilling engineering according to claim 1, characterized in that: A rotating paddle (7a) is provided inside the separation roller (7), water inlets (7b) are provided on both sides of the separation roller (7), and the separation roller (7) is connected to the water tank (6) via a pipeline, and a conical filter groove (7c) is provided at the bottom of the separation roller (7).

7. The mud separation device for natural gas drilling engineering according to claim 1 is characterized by: The hydraulic pump (4) is connected to the vibrating screen (1) via a rib plate (4a), and a connecting plate (4b) is provided at the bottom of the hydraulic pump (4) and is fixedly connected to the first fixed bracket (3).

8. The mud separation device for natural gas drilling engineering according to claim 1, characterized in that: The water tank (6) is internally provided with filter cotton in layers.

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