Solid-liquid separation device for waste mud after accelerated well completion

Abstract

The utility model belongs to the technical field of mud treatment, and particularly relates to a solid-liquid separation device for waste mud after accelerated well completion, which comprises a mud pit, a V-shaped inclined plane is arranged on the inner side wall of the mud pit, a semicircular diversion trench is arranged at the bottom of the inner wall of the mud pit, and a plurality of support rods are fixedly connected in the mud pit. A separation assembly is installed in the mud pool and comprises a scraping plate, and the scraping plate is installed on a supporting rod in a sliding mode. A magnetic field is generated through the electrode plate, separation of metal cations is accelerated, the sedimentation efficiency of particulate matter in slurry is improved, the first driver is operated to enable the electrode plate to move in the slurry pond to expand the solid-liquid separation range, the sedimentation efficiency of the slurry in the slurry pond is integrally improved, and the solid-liquid separation efficiency is improved. And the scraper slides to push the deposited mud on the inner side wall of the mud pit into the flow guide groove, and centralized treatment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of mud treatment, in particular to a device for accelerating solid-liquid separation of waste mud after well completion. Background Art

[0002] Drilling mud is an important guarantee for improving drilling efficiency. It plays a role in lifting cuttings and cooling the drill bit during the drilling process. In order to achieve safe and fast drilling, the types and quantities of drilling fluids and chemicals used are increasing, which inevitably produces a large amount of waste and pollutes the environment.

[0003] At present, there are many methods for the disposal of waste mud, but generally the mud is separated into solid and liquid first and then disposed of separately. Common methods for mud solid-liquid separation are natural drying or adding coagulants and flocculants to the mud pool. The above solid-liquid separation methods have poor separation effects and take a long time, increasing the risk of soil contamination.

[0004] In water, the degree of agglomeration of suspended particles mainly depends on the electromotive force and hydration degree of the solid particle surface. The lower the hydration degree, the smaller the charge, the greater the probability of particle adhesion during movement, and the more aggregated particles. In the mud system, the surface of suspended particles generally carries the same charge. Due to the electrostatic effect, the mud particles remain dispersed in the water for a long time, which is not conducive to the sedimentation and clarification of muddy water.

[0005] The existing Chinese patent with the announcement number CN214913629U discloses a device for accelerating solid-liquid separation of waste mud after well completion, which is applied in the field of geological exploration. The device comprises a mud pool with waste mud inside and a control console electrically connected to the mud pool. The mud pool is provided with an electrode plate electrically connected to the control console via a cable, and the electrode plate is electrically connected to a transformer in the control console.

[0006] In view of the above and existing related technologies, the inventors believe that the following defects often exist: after the solid-liquid separation treatment of the mud in the mud pool of the device, the mud accumulates inside the mud pool, which is inconvenient to clean and needs to be improved; therefore, in view of the above problem, a device for accelerating the solid-liquid separation of waste mud after well completion is proposed. Utility Model Content

[0007] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model proposes a device for accelerating solid-liquid separation of waste mud after well completion.

[0008] The technical solution adopted by the utility model to solve its technical problems is: the utility model described in the utility model is a device for accelerating solid-liquid separation of waste mud after well completion, including a mud pool, the inner wall of the mud pool is provided with a V-shaped slope, and the bottom of the inner wall of the mud pool is provided with a semicircular guide groove, the interior of the mud pool is fixedly connected with a plurality of support rods, a separation component is installed inside the mud pool, and the separation component includes a scraper, the scraper is slidably installed on the support rod, the surface of the scraper is threadedly connected with a screw, one end of the screw is rotatably connected to the mud pool, the side wall of the mud pool is fixedly connected with a driver one, the driving end of the driver one is fixedly connected to the other end of the screw, and the surface of the scraper is fixedly connected to the side wall of the mud pool. A plurality of electrode plates are fixedly connected, the electrode plates are electrically connected to the electrode columns, the electrode plates are electrically connected to the transformer, the surface of the electrode plates is fixedly connected to the electrode columns, a slurry discharge port is provided on the lower side wall of the mud pool corresponding to the guide groove, the drilling mud is discharged into the mud pool, the transformer is operated to make the electrode plate generate a magnetic field, the separation of metal cations is accelerated, and the sedimentation efficiency of the particles in the mud is improved, the drive is operated to drive the lead screw to rotate and the scraper slides along the support rod, so that the electrode plate moves inside the mud pool for solid-liquid separation, and the sedimentation efficiency of the mud inside the mud pool is improved as a whole, and after the mud sedimentation is completed, the scraper can slide to push the sedimentation mud on the inner wall of the mud pool into the guide groove, which is convenient for centralized treatment.

[0009] Preferably, a semicircular opening is provided at the bottom of the scraper.

[0010] Preferably, protective plates are installed on both sides of the scraper respectively, and a plurality of support columns are fixedly connected to the protective plate and the opposite side of the scraper. The protective plates are used to block the scraper when it slides, thereby reducing the impact of mud on the electrode plate and the electrode column.

[0011] Preferably, the surface of the protective plate is provided with flow holes distributed in a matrix, and the flow holes allow mud to flow, thereby reducing the resistance of the protective plate.

[0012] Preferably, a slurry discharge assembly is installed inside the mud pool, and the slurry discharge assembly includes a connecting rod, which is installed at the center of the guide groove, and one end of the connecting rod passes through the slurry discharge port and is fixedly connected to a support plate, and the support plate is fixedly connected to the mud pool, and the supporting plate supports the connecting rod for limiting the position. After the mud is settled, the water in the mud pool is pumped out by a water pump, the slurry discharge port is opened, and the operating driver 2 drives the spiral blade to rotate, so that the mud entering the guide groove is transported out of the mud pool through the slurry discharge port, thereby realizing automatic discharge of the mud.

[0013] Preferably, a spiral blade is fixedly connected to the surface of the connecting rod.

[0014] Preferably, a second driver is fixedly connected to the side wall of the mud pool, and a driving end of the second driver is fixedly connected to one end of a connecting rod.

[0015] Preferably, a hydraulic rod is symmetrically fixedly connected to the surface of the support plate, and a sealing ring is fixedly connected to the driving end of the hydraulic rod. The sealing ring is sleeved on the connecting rod, and the sealing ring is moved by the extension and retraction of the hydraulic rod. During sedimentation, the sealing ring presses against the mud pool to seal the slurry discharge port to prevent the mud from flowing out. After sedimentation is completed, the slurry discharge port is opened to allow the precipitated mud to be discharged from the mud pool.

[0016] Preferably, a sealing ring is provided at the intersection of the sealing ring and the connecting rod, and a sealing gasket is fixedly connected to the side of the sealing ring facing the mud pool, so as to improve the sealing effect at the slurry discharge port.

[0017] The utility model is beneficial in that:

[0018] 1. The utility model generates a magnetic field through the electrode plate to accelerate the separation of metal cations and improve the sedimentation efficiency of particulate matter in the mud. The operation of the driver makes the electrode plate move inside the mud pool to expand the range of solid-liquid separation, thereby improving the sedimentation efficiency of the mud inside the mud pool as a whole. The sliding of the scraper can push the sedimentation mud on the inner wall of the mud pool into the inside of the guide groove for convenient centralized treatment.

[0019] 2. The utility model drives the spiral blade to rotate by operating the second driver, and then transports the mud entering the guide groove out of the mud pool through the mud discharge port, thereby realizing automatic discharge of the mud. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a cross-sectional view of the mud pool of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the separation component of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the slurry discharge assembly of the utility model;

[0025] Figure 5 For this utility model Figure 4 Schematic diagram of the A structure.

[0026] In the figure: 1. mud pool; 2. guide groove; 3. support rod; 4. separation assembly; 41. scraper; 42. screw; 44. electrode plate; 45. electrode column; 46. protective plate; 47. support column; 48. flow hole; 5. slurry discharge port; 6. slurry discharge assembly; 61. connecting rod; 62. support plate; 63. spiral blade; 64. sealing ring; 65. sealing gasket; 66. hydraulic rod; 7. driver two; 8. driver one. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] See also Figure 1-3 As shown, a device for accelerating solid-liquid separation of waste mud after well completion includes a mud pool 1, an inner wall of the mud pool 1 is provided with a V-shaped slope, and a semicircular guide groove 2 is provided at the bottom of the inner wall of the mud pool 1, a plurality of support rods 3 are fixedly connected to the inside of the mud pool 1, a separation component 4 is installed inside the mud pool 1, and the separation component 4 includes a scraper 41, the scraper 41 is slidably installed on the support rod 3, a screw 42 is threadedly connected to the surface of the scraper 41, one end of the screw 42 is rotatably connected to the mud pool 1, a driver 8 is fixedly connected to the side wall of the mud pool 1, a driving end of the driver 8 is fixedly connected to the other end of the screw 42, a plurality of electrode plates 44 are fixedly connected to the surface of the scraper 41, and the electrode plates 44 are connected to the electrode columns 4 5 is electrically connected, the electrode plate 44 is electrically connected to the transformer, the surface of the electrode plate 44 is fixedly connected to the electrode column 45, the lower side wall of the mud pool 1 is provided with a slurry discharge port 5 corresponding to the guide groove 2, the drilling mud is discharged into the mud pool 1, the transformer is operated to make the electrode plate 44 generate a magnetic field, accelerate the separation of metal cations, and improve the sedimentation efficiency of particles in the mud, the driver 8 is operated to drive the lead screw 42 to rotate and make the scraper 41 slide along the support rod 3, so that the electrode plate 44 moves inside the mud pool 1 to expand the range of solid-liquid separation, and the sedimentation efficiency of the mud inside the mud pool 1 is improved as a whole, and after the mud sedimentation is completed, the scraper 41 can slide to push the sedimentation mud on the inner wall of the mud pool 1 into the guide groove 2, which is convenient for centralized treatment.

[0030] A semicircular opening is formed at the bottom of the scraper 41 .

[0031] Protective plates 46 are installed on both sides of the scraper 41. A plurality of support columns 47 are fixedly connected to the protective plate 46 and the opposite side of the scraper 41. The protective plates 46 block the scraper 41 when it slides, thereby reducing the impact of mud on the electrode plate 44 and the electrode column 45.

[0032] The surface of the protective plate 46 is provided with flow holes 48 distributed in a matrix, and the flow holes 48 allow mud to flow, thereby reducing the resistance of the protective plate 46 .

[0033] Embodiment 2

[0034] For comparison with Example 1, please refer to Figure 4-5 As shown, the utility model provides another embodiment, a slurry discharge assembly 6 is installed inside the mud pool 1, and the slurry discharge assembly 6 includes a connecting rod 61, and the connecting rod 61 is installed at the center of the guide groove 2. One end of the connecting rod 61 passes through the slurry discharge port 5 and is fixedly connected to a support plate 62. The support plate 62 is fixedly connected to the mud pool 1, and the connecting rod 61 is supported by the support plate 62 for limiting. After the mud is settled, the water in the mud pool 1 is pumped out by a water pump, the slurry discharge port 5 is opened, and the operating driver 7 drives the spiral blade 63 to rotate, so that the mud entering the guide groove 2 is transported out of the mud pool 1 through the slurry discharge port 5, thereby realizing automatic discharge of the mud.

[0035] A spiral blade 63 is fixedly connected to the surface of the connecting rod 61 .

[0036] A driver 2 7 is fixedly connected to the side wall of the mud pool 1 , and a driving end of the driver 2 7 is fixedly connected to one end of the connecting rod 61 .

[0037] The surface of the support plate 62 is symmetrically fixedly connected with a hydraulic rod 66, and the driving end of the hydraulic rod 66 is fixedly connected with a sealing ring 64. The sealing ring 64 is sleeved on the connecting rod 61, and the sealing ring 64 is moved by the extension and retraction of the hydraulic rod 66. During sedimentation, the sealing ring 64 presses against the mud pool 1 to seal the slurry discharge port 5 to prevent the mud from flowing out. After sedimentation is completed, the slurry discharge port 5 is opened to allow the precipitated mud to be discharged from the mud pool 1.

[0038] A sealing ring is provided at the intersection of the sealing ring 64 and the connecting rod 61 , and a sealing gasket 65 is fixedly connected to the side of the sealing ring 64 facing the mud pool 1 , so that the sealing effect at the mud discharge port 5 is improved by the sealing gasket 65 .

[0039] Through the personnel in this field, all the electrical components in this case are connected to the corresponding power supply through wires, and according to the actual situation, a suitable controller should be selected to electrically connect the transformer, driver 1 8, driver 2 7 and hydraulic rod 66 to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the working order. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0040] Working principle: the drilling mud is discharged into the mud pool 1, the transformer is operated to make the electrode plate 44 generate a magnetic field, which accelerates the separation of metal cations and improves the sedimentation efficiency of the particles in the mud. The driver 8 is operated to drive the lead screw 42 to rotate and make the scraper 41 slide along the support rod 3, so that the electrode plate 44 moves inside the mud pool 1 to expand the range of solid-liquid separation, thereby improving the sedimentation efficiency of the mud inside the mud pool 1 as a whole.

[0041] After the mud has settled, the water in the mud pool 1 is pumped out by a water pump, the discharge port 5 is opened, and the driver 1 8 is operated again to drive the screw 42 to rotate so that the scraper 41 slides along the support rod 3. The sliding of the scraper 41 can push the settled mud on the inner wall of the mud pool 1 into the interior of the guide groove 2, which is convenient for centralized processing. The driver 2 7 is operated to drive the spiral blade 63 to rotate, and then the mud entering the interior of the guide groove 2 is transported out of the mud pool 1 through the discharge port 5, thereby realizing automatic discharge of the mud.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A device for accelerating solid-liquid separation of waste mud after well completion, comprising a mud pool (1), characterized in that: The inner wall of the mud pool (1) is provided with a V-shaped inclined surface, and the bottom of the inner wall of the mud pool (1) is provided with a semicircular guide groove (2). The interior of the mud pool (1) is fixedly connected with a plurality of support rods (3). The interior of the mud pool (1) is provided with a separation assembly (4), and the separation assembly (4) comprises a scraper (41), and the scraper (41) is slidably mounted on the support rod (3). The surface of the scraper (41) is threadedly connected with a lead screw (42), and one end of the lead screw (42) is rotatably connected with the mud pool (1). The side wall of the mud pool (1) is fixedly connected with a driver (8), the driving end of the driver (8) is fixedly connected with the other end of the lead screw (42), the surface of the scraper (41) is fixedly connected with a plurality of electrode plates (44), the surface of the electrode plate (44) is fixedly connected with an electrode column (45), the electrode plate (44) is electrically connected to the electrode column (45), the electrode plate (44) is electrically connected to a transformer, and a slurry discharge port (5) is provided on the lower side wall of the mud pool (1) corresponding to the guide groove (2).

2. The device for accelerating solid-liquid separation of waste mud after well completion according to claim 1, characterized in that: A semicircular opening is formed at the bottom of the scraper (41).

3. The device for accelerating solid-liquid separation of waste mud after well completion according to claim 1, characterized in that: Protective plates (46) are respectively installed on both sides of the scraper (41), and a plurality of support columns (47) are fixedly connected to the protective plate (46) on the side opposite to the scraper (41).

4. The device for accelerating solid-liquid separation of waste mud after well completion according to claim 3 is characterized in that: The surface of the protection plate (46) is provided with flow holes (48) distributed in a matrix.

5. The device for accelerating solid-liquid separation of waste mud after well completion according to claim 1, characterized in that: A slurry discharge assembly (6) is installed inside the mud pool (1), and the slurry discharge assembly (6) comprises a connecting rod (61). The connecting rod (61) is installed at the center of the guide groove (2), and one end of the connecting rod (61) passes through the slurry discharge port (5) and is fixedly connected to a support plate (62), and the support plate (62) is fixedly connected to the mud pool (1).

6. The device for accelerating solid-liquid separation of waste mud after well completion according to claim 5, characterized in that: A spiral blade (63) is fixedly connected to the surface of the connecting rod (61).

7. The device for accelerating solid-liquid separation of waste mud after well completion according to claim 5, characterized in that: A second driver (7) is fixedly connected to the side wall of the mud pool (1), and a driving end of the second driver (7) is fixedly connected to one end of a connecting rod (61).

8. The device for accelerating solid-liquid separation of waste mud after well completion according to claim 5, characterized in that: A hydraulic rod (66) is symmetrically fixedly connected to the surface of the support plate (62), a driving end of the hydraulic rod (66) is fixedly connected to a sealing ring (64), and the sealing ring (64) is sleeved on the connecting rod (61).

9. The device for accelerating solid-liquid separation of waste mud after well completion according to claim 8, characterized in that: A sealing ring is provided at the intersection of the sealing ring (64) and the connecting rod (61), and a sealing gasket (65) is fixedly connected to the side of the sealing ring (64) facing the mud pool (1).

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