A drilling fluid reserve and recycled mud station

Abstract

Embodiments of the present disclosure relate to the technical field of drilling mud stations. An embodiment of the present disclosure provides a drilling fluid reserve and recovery mud station, which includes a circulation box body. The circulation box body has a first cavity and a second cavity arranged in sequence. The top of the circulation box body has a platform; a vibrating screen assembly, which is arranged on the platform and has a vibrating slurry feeding port, a vibrating slurry discharging port and a vibrating sand discharging port. The vibrating slurry discharging port leads to the first cavity; a first centrifuge, which is arranged on the platform and has a first slurry feeding port, a first slurry discharging port and a first sand discharging port. The first cavity leads to the first slurry feeding port, and the first slurry discharging port leads to the second cavity. Through the above technical solution, the technical problems of poor removal effect of drilling fluid particles and low batching efficiency of the mud station in the related art are solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of drilling mud stations, and more specifically, to a drilling fluid reserve and recovery mud station. Background Art

[0002] A drilling fluid reserve and recovery mud station is mainly used for storing and recovering drilling fluid. Drilling fluid is commonly known as drilling mud or simply mud. Storing drilling fluid is to ensure an adequate supply of drilling fluid before and during drilling operations to meet drilling requirements and prevent operation interruptions due to insufficient drilling fluid supply. Recovering drilling fluid is to collect the waste drilling fluid returned to the surface during drilling for subsequent treatment and reuse, reducing waste and environmental pollution.

[0003] The waste mud on-site is transported through a mud pump or other conveying equipment via pipelines to the storage tank or mud pit of the recovery mud station. During transportation, it passes through preliminary filtration or screening equipment to remove larger solid particles. The recovered mud undergoes a series of treatment processes in the station, such as sedimentation, centrifugal separation, filtration, chemical treatment, etc., to remove solid-phase particles and harmful components therein and adjust the performance parameters of the mud to meet the reuse standard. The treated mud is then transported back to the drilling site for reuse in drilling operations, forming a recycling process that reduces drilling costs and environmental impact. When the mud station conducts mud recovery recycling and storage, it may involve formulating new drilling fluid. In the prior art, there are still some problems. On the one hand, the particles in the recovered drilling fluid are not removed thoroughly enough, affecting the performance of the drilling fluid. On the other hand, when formulating new drilling fluid in the mud pit, the batching efficiency is low, and the raw material ratio is rough during batching, resulting in average mud quality. Summary of the Invention

[0004] To overcome the above defects, embodiments of the present disclosure provide a drilling fluid reserve and recovery mud station, which solves the technical problems of poor removal effect of drilling fluid particles and low batching efficiency in related technologies.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a drilling fluid reserve and recovery mud station, comprising:

[0006] A circulation box body having a first cavity and a second cavity arranged in sequence, and a platform at the top of the circulation box body;

[0007] A vibrating screen assembly disposed on the platform, having a vibrating slurry feeding port, a vibrating slurry discharging port, and a vibrating sand discharging port, and the vibrating slurry discharging port leads to the first cavity;

[0008] The first centrifuge is disposed on the platform and has a first slurry inlet, a first slurry outlet, and a first sand outlet. The first cavity leads to the first slurry inlet, and the first slurry outlet leads to the second cavity.

[0009] For example, a drilling fluid reserve and recovery mud station provided by at least one embodiment of the present disclosure. The circulation box body further has a third cavity, and further includes:

[0010] The second centrifuge is disposed on the platform and has a second slurry inlet, a second slurry outlet, and a centrifugal sand outlet. The second cavity leads to the second slurry inlet, and the second slurry outlet leads to the third cavity;

[0011] The liquid storage tank, the third cavity leads to the liquid storage tank;

[0012] The agitator, the agitator is disposed in both the second cavity and the third cavity;

[0013] The mud gun, the mud gun is disposed in both the second cavity and the third cavity.

[0014] For example, a drilling fluid reserve and recovery mud station provided by at least one embodiment of the present disclosure further includes:

[0015] The batching box body, the batching box body has a fourth cavity and a fifth cavity arranged in sequence;

[0016] The jet mixing device has a water inlet, a powder inlet, and a mixed slurry outlet. The fourth cavity leads to the water inlet, and the mixed slurry outlet leads to the fifth cavity.

[0017] For example, in a drilling fluid reserve and recovery mud station provided by at least one embodiment of the present disclosure, the jet mixing device includes:

[0018] The mixing main body, the mixing main body has a mixing cavity;

[0019] The jet pipe leads to the mixing cavity and has the water inlet. The jet pipe has a converging section, and the inner diameter of the converging section gradually decreases from far away from the mixing cavity to close to the mixing cavity;

[0020] The diverging pipe, the mixing cavity leads to the diverging pipe and has the mixed slurry outlet. The jet pipe has a flaring section, and the inner diameter of the flaring section gradually increases from close to the mixing cavity to far away from the mixing cavity;

[0021] The feeding hopper leads to the mixing cavity.

[0022] For example, in a drilling fluid reserve and recovery mud station provided by at least one embodiment of the present disclosure, the jet mixing device further includes:

[0023] A rupture member, the upper end of the rupture member is spiked and is arranged in the feeding hopper;

[0024] An extension pipe, the extension pipe is communicated with the closing section and is located in the slurry mixing cavity. The lower end of the feeding hopper faces the outer wall of the extension pipe. An annular space is formed between the extension pipe and the inner wall of the slurry mixing cavity, and the lower end of the feeding hopper leads to the annular space.

[0025] For example, a drilling fluid reserve and recovery mud station provided by at least one embodiment of the present disclosure, the vibrating screen assembly includes:

[0026] A first screen body, one side above the first screen body is the vibrating slurry feeding port, below is the vibrating slurry discharging port, and the lower end is the vibrating sand discharging port;

[0027] A second screen body, the second screen body is located above the first screen body and on one side of the vibrating sand discharging port;

[0028] A suction pipe, the suction pipe extends into the first cavity, and the suction pipe has a plurality of shunt ports;

[0029] A plurality of spiral sand throwing members, each spiral sand throwing member has a spiral sand throwing cavity, the bottom of the spiral sand throwing cavity has a sand throwing sand discharging port, and the upper part on one side is communicated with the shunt port;

[0030] A confluence pipe, the confluence pipe has a plurality of confluence ports, and the top of the spiral sand throwing cavity leads to the confluence ports.

[0031] For example, a drilling fluid reserve and recovery mud station provided by at least one embodiment of the present disclosure, the vibrating screen assembly further includes:

[0032] A sliding blocking member, the sliding blocking member is slidably arranged in the upper part of the spiral sand throwing cavity. The bottom of the sliding blocking member has a working surface, and the periphery has an outer conical surface. The inner wall of the spiral sand throwing cavity has an inner conical surface. The inner conical surface is located around the outer conical surface and a ring-shaped conical channel is formed between the outer conical surface;

[0033] A first elastic member, the first elastic member acts on the sliding blocking member to provide a force for the sliding blocking member to slide upward to make the ring-shaped conical channel smaller. The working surface is used to be acted on by the liquid in the spiral sand throwing cavity to provide a force for the sliding blocking member to move upward to make the ring-shaped conical channel larger.

[0034] For example, a drilling fluid reserve and recovery mud station provided by at least one embodiment of the present disclosure, the inner wall of the sand throwing sand discharging port has a plurality of radial guiding grooves, and the vibrating screen assembly further includes:

[0035] A necking slider, which is slidably arranged in the guiding groove, and a necking channel is formed among a plurality of the necking sliders;

[0036] A second elastic member, which acts on the necking slider to provide a force for the necking slider to slide towards the middle of the necking channel, so that the necking channel becomes smaller.

[0037] For example, a mud station for storing and recycling drilling fluid provided by at least one embodiment of the present disclosure, the inner wall of the sand-throwing sand outlet further has a plurality of arc-shaped grooves, and the vibrating screen assembly further includes:

[0038] A swinging necking member, the upper end of which swings on the necking slider, and the lower end of which is slidably arranged in the arc-shaped groove;

[0039] A third elastic member, which acts on the swinging necking member to provide a force for the swinging necking member to swing away from the inner wall of the sand-throwing sand outlet.

[0040] For example, a mud station for storing and recycling drilling fluid provided by at least one embodiment of the present disclosure, the end of the necking slider has a smooth guiding spherical surface.

[0041] The beneficial effects of the embodiments of the present disclosure are as follows:

[0042] In the present disclosure, the mud station for storing and recycling drilling fluid significantly improves the ability to remove solid particles from waste mud and optimizes the mud recycling process. The waste mud is sequentially treated by the vibrating screen assembly and the first centrifuge to achieve solid-liquid separation, and the treated mud enters the first cavity and the second cavity in sequence. Through reasonable equipment layout and treatment process design, the recycling efficiency and quality of the mud station are improved, and the cost and environmental impact are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for description in the embodiments of the present disclosure. Obviously, the following drawings are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained according to the content of the exemplary embodiments of the present disclosure and these drawings without creative efforts.

[0044] Figure 1 It is a schematic structural diagram of the mud station for storing and recycling drilling fluid in the present disclosure;

[0045] Figure 2 It is a schematic internal structure diagram of the circulation box in the present disclosure;

[0046] Figure 3 It is a schematic internal structure diagram of the batching box in the present disclosure;

[0047] Figure 4 It is a schematic structural diagram of the jet slurry mixer in the present disclosure;

[0048] Figure 5 It is a schematic internal structure diagram of the jet slurry mixer in the present disclosure;

[0049] Figure 6 It is a schematic structural diagram of the vibrating screen assembly in the present disclosure Figure 1 ;

[0050] Figure 7 is Figure 6 a partially enlarged structural diagram of part A in

[0051] Figure 8 It is a schematic structural diagram of the vibrating screen assembly in the present disclosure Figure 2 ;

[0052] Figure 9 is Figure 8 a partially enlarged structural diagram of part B in

[0053] In the figure: circulation box body - 1, first cavity - 101, second cavity - 102, platform - 103, third cavity - 104, vibrating screen assembly - 2, first sieve body - 201, second sieve body - 202, material suction pipe - 203, shunt port - 204, spiral sand throwing member - 205, spiral sand throwing cavity - 206, sand throwing and sand outlet - 207, confluence pipe - 208, confluence port - 209, sliding stopper - 210, acting surface - 211, outer conical surface - 212, inner conical surface - 213, annular conical channel - 214, first elastic member - 215, guiding groove - 216, necking slider - 217, necking channel - 218, second elastic member - 219, arc groove - 220, swinging necking member - 221, third elastic member - 222, smooth guiding spherical surface - 223, vibrating slurry outlet - 224, vibrating slurry discharge port - 225, vibrating sand outlet - 226, first centrifuge - 3, first slurry inlet - 301, first slurry outlet - 302, first sand outlet - 303, second centrifuge - 4, second slurry inlet - 401, second slurry outlet - 402, centrifugal sand outlet - 403, liquid storage tank - 5, stirrer - 6, slurry gun - 7, batching box body - 8, fourth cavity - 801, fifth cavity - 802, jet slurry mixer - 9, water inlet - 901, powder inlet - 902, mixed slurry outlet - 903, mixed slurry main body - 904, mixed slurry cavity - 905, jet pipe - 906, necking section - 907, diverging pipe - 908, flaring section - 909, feeding hopper - 910, breaking member - 911, extension pipe - 912, annular space - 913. Detailed implementation manners

[0054] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present disclosure, rather than limiting the present disclosure.

[0055] To make the drawings concise, only the parts related to the disclosure are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0056] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

[0057] In the present disclosure, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is less than that of the second feature.

[0058] In the description of this embodiment, the orientation or positional relationship such as "up", "down", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present disclosure.

[0059] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0060] Such as Figures 1 to 9As shown, it shows a drilling fluid reserve and recovery mud station in an embodiment of the present disclosure, including a circulation box body 1. The circulation box body 1 has a first cavity 101 and a second cavity 102 arranged in sequence, and the top of the circulation box body 1 has a platform 103; a vibrating screen assembly 2, the vibrating screen assembly 2 is arranged on the platform 103, and has a vibrating slurry feeding port 224, a vibrating slurry discharging port 225 and a vibrating sand discharging port 226. The vibrating slurry discharging port 225 leads to the first cavity 101; a first centrifuge 3, the first centrifuge 3 is arranged on the platform 103, and has a first slurry feeding port 301, a first slurry discharging port 302 and a first sand discharging port 303. The first cavity 101 leads to the first slurry feeding port 301, and the first slurry discharging port 302 leads to the second cavity 102.

[0061] In this drilling fluid reserve and recovery mud station: First is the circulation box body 1, whose interior is divided into a first cavity 101 and a second cavity 102 arranged in sequence, and a platform 103 is provided at the top.

[0062] The vibrating screen assembly 2 is installed on the platform 103 and has a vibrating slurry feeding port 224, a vibrating slurry discharging port 225 and a vibrating sand discharging port 226. The waste mud at the drilling site is fed into the vibrating screen assembly 2 from the vibrating slurry feeding port 224. After vibrating screening, larger sand grains are discharged from the vibrating sand discharging port 226, and the screened mud flows into the first cavity 101 from the vibrating slurry discharging port 225. The first centrifuge 3 is also arranged on the platform 103. The mud in the first cavity 101 is conveyed to the first slurry feeding port 301 of the first centrifuge 3. Under the action of the first centrifuge 3, finer solid particles are further separated, and these particles are discharged from the first sand discharging port 303, while the treated mud flows from the first slurry discharging port 302 to the second cavity 102.

[0063] In practical applications, for example, during the drilling operation, the waste mud returned from the drilling site first removes larger solid particles through the vibrating screen assembly 2 and then enters the first centrifuge 3 for more refined solid-liquid separation.

[0064] The advantages of this design are as follows: First, through the combination of the vibrating screen assembly 2 and the first centrifuge 3, multi-stage separation of the waste mud is achieved, improving the effect of removing solid particles and providing better conditions for subsequent mud treatment and reuse. Second, the vibrating screen assembly 2 and the first centrifuge 3 are arranged on the platform 103, saving space and facilitating the installation and maintenance of the equipment.

[0065] For example, when dealing with a large amount of waste mud, it can more efficiently remove solid particles, ensure the quality of the recovered mud, and improve the recycling rate of the mud.

[0066] In terms of technical effects, the ability to remove solid particles from waste mud has been significantly improved, and the recycling process of mud has been optimized. Overall working principle: The waste mud passes through the vibrating screen assembly 2 and the first centrifuge 3 in sequence to achieve solid-liquid separation. The treated mud enters the first cavity 101 and the second cavity 102 in sequence. Overall technical effect: Through reasonable equipment layout and treatment process design, the recycling efficiency and quality of the mud station have been improved, and the cost and environmental impact have been reduced.

[0067] In some examples, such as Figure 2 , Figure 6 As shown, the circulating box 1 also has a third cavity 104. It also includes a second centrifuge 4. The second centrifuge 4 is arranged on the platform 103 and has a second slurry inlet 401, a second slurry outlet 402 and a centrifugal sand outlet 403. The second cavity 102 leads to the second slurry inlet 401, and the second slurry outlet 402 leads to the third cavity 104; the third cavity 104 leads to the liquid storage tank 5; agitators 6 are arranged in both the second cavity 102 and the third cavity 104; mud guns 7 are arranged in both the second cavity 102 and the third cavity 104.

[0068] In this drilling fluid reserve and recycling mud station: In addition to the first cavity 101 and the second cavity 102, the circulating box 1 also has a third cavity 104. The second centrifuge 4 is arranged on the platform 103. The mud in the second cavity 102 is transported to the second slurry inlet 401 of the second centrifuge 4. After further separation treatment, the solid particles are discharged from the centrifugal sand outlet 403, and the treated mud flows from the second slurry outlet 402 to the third cavity 104. The third cavity 104 is communicated with the liquid storage tank 5, and the high-quality mud after multiple treatments is stored in the liquid storage tank 5 for standby. At the same time, agitators 6 and mud guns 7 are arranged in both the second cavity 102 and the third cavity 104.

[0069] In actual work, for example, when the mud passes through the first cavity 101, the second cavity 102 and the third cavity 104 in sequence, the agitator 6 continuously stirs the mud to make its composition more uniform and prevent precipitation and stratification. The mud gun 7 is used to enhance the mixing and treatment effect of the mud.

[0070] The advantages of this design are as follows: First, by adding the second centrifuge 4 and the third cavity 104, the treatment accuracy and quality of the mud are further improved. Second, the setting of the agitator 6 and the mud gun 7 ensures the uniformity and stability of the mud during the treatment process and improves the treatment effect. Third, the presence of the liquid storage tank 5 facilitates the storage and subsequent use of high-quality mud.

[0071] For example, in drilling operations with high requirements for mud quality, it can provide more compliant mud to ensure the smooth progress of drilling work.

[0072] In terms of technical effects, the treatment quality and stability of the mud are significantly improved, and the comprehensive performance of the mud station is enhanced. Overall working principle: The mud undergoes multiple treatment processes in sequence within the circulation box 1, and is fully mixed and treated under the action of the agitator 6 and the mud gun 7, and finally stored in the liquid storage tank 5. Overall technical effect: Through the perfect treatment process and equipment configuration, the recycling efficiency and quality of the drilling fluid are improved, meeting the requirements under different working conditions.

[0073] In some examples, such as Figure 3 , Figure 4 shown, it also includes a batching box 8, which has a fourth cavity 801 and a fifth cavity 802 arranged in sequence; the jet slurry mixer 9 has a water inlet 901, a powder inlet 902 and a slurry mixing outlet 903, the fourth cavity 801 leads to the water inlet 901, and the slurry mixing outlet 903 leads to the fifth cavity 802.

[0074] In this drilling fluid reserve and recycling mud station: A new batching box 8 is added, which has a fourth cavity 801 and a fifth cavity 802 arranged in sequence inside. A jet slurry mixer 9 is also equipped, and the jet slurry mixer 9 has a water inlet 901, a powder inlet 902 and a slurry mixing outlet 903. The water in the fourth cavity 801 leads to the water inlet 901, the powder is added from the powder inlet 902, and after being mixed by the jet slurry mixer 9, the mixed mud leads from the slurry mixing outlet 903 to the fifth cavity 802.

[0075] In actual operation, for example, when new drilling fluid needs to be formulated, the water in the fourth cavity 801 is introduced into the water inlet 901 of the jet slurry mixer 9, and the corresponding powder is added from the powder inlet 902 at the same time. The jet slurry mixer 9 uses the jet action of water to quickly and evenly mix the powder to form new drilling fluid and transport it to the fifth cavity 802.

[0076] The advantages of this design are: First, the jet slurry mixer 9 can achieve rapid and efficient mixing of water and powder, improving the batching efficiency. Second, the partition design of the batching box 8 makes the batching process more orderly and convenient for control and management.

[0077] For example, when a large amount of high-quality drilling fluid needs to be quickly configured, it can quickly meet the demand and improve work efficiency.

[0078] In terms of technical effects, the batching efficiency and quality of the new drilling fluid are significantly improved. Overall working principle: Water enters the jet slurry mixer 9 from the fourth cavity 801, is mixed with the powder added from the powder inlet 902, and then enters the fifth cavity 802. Overall technical effect: By introducing the jet slurry mixer 9 and the reasonable design of the batching box 8, the batching process of the new drilling fluid is optimized, and the work efficiency and the quality of the drilling fluid are improved.

[0079] In some examples, such as Figure 4 ,Figure 5 As shown in the figure, the jet mud mixer 9 includes a mud mixing main body 904 which has a mud mixing chamber 905; a jet pipe 906 leads to the mud mixing chamber 905 and has a water inlet 901. The jet pipe 906 has a converging section 907, and the inner diameter of the converging section 907 gradually decreases from being far away from the mud mixing chamber 905 to being close to the mud mixing chamber 905; the mud mixing chamber 905 leads to a diverging pipe 908 and has a mud mixing outlet 903. The jet pipe 906 has a flaring section 909, and the inner diameter of the flaring section 909 gradually increases from being close to the mud mixing chamber 905 to being far away from the mud mixing chamber 905; a feeding hopper 910 leads to the mud mixing chamber 905.

[0080] In this drilling fluid reserve and recycling mud station: The jet mud mixer 9 is mainly composed of a mud mixing main body 904, a jet pipe 906, a diverging pipe 908 and a feeding hopper 910. The inside of the mud mixing main body 904 has a mud mixing chamber 905 for accommodating water and powder for mixing. The jet pipe 906 leads to the mud mixing chamber 905 and has a water inlet 901. The converging section 907 of the jet pipe 906 has an inner diameter that gradually decreases from being far away from the mud mixing chamber 905 to being close to the mud mixing chamber 905. When water enters the jet pipe 906 from the water inlet 901 and passes through the converging section 907, the water flow velocity will increase, forming a high-speed jet.

[0081] The diverging pipe 908 communicates with the mud mixing chamber 905 and has a mud mixing outlet 903. The flaring section 909 of the diverging pipe 908 has an inner diameter that gradually increases from being close to the mud mixing chamber 905 to being far away from the mud mixing chamber 905, which helps to slow down the flow velocity of the mixed mud and make the mixing more sufficient. The feeding hopper 910 leads to the mud mixing chamber 905 for adding powder.

[0082] During the actual working process, for example, when newly formulating drilling fluid, water enters the jet pipe 906 from the water inlet 901, passes through the converging section 907 to accelerate and form a high-speed jet into the mud mixing chamber 905. At the same time, powder is added to the mud mixing chamber 905 through the feeding hopper 910. The negative pressure generated by the high-speed jet will suck the powder into the mud mixing chamber 905, and the water and powder are fully mixed in the mud mixing chamber 905. The mixed mud then flows out from the mud mixing outlet 903 through the diverging pipe 908.

[0083] The advantages of this design are as follows: First, a high-speed jet is generated through the converging section 907 of the jet pipe 906, enhancing the suction and mixing effects on the powder. Second, the flaring section 909 of the diverging pipe 908 helps to make the mixing more uniform and sufficient. Third, the whole structure is compact and the mixing efficiency is high.

[0084] For example, when it is necessary to quickly and efficiently configure high-quality drilling fluid, it can fully ensure the mixing effect, improve work efficiency and the quality of drilling fluid.

[0085] In terms of technical effects, the mixing uniformity and efficiency of water and powder materials are significantly improved. Overall working principle: Water is accelerated through the jet pipe 906 to form a jet, driving the powder materials to mix in the slurry mixing chamber 905 and then flowing out through the diverging pipe 908. Overall technical effect: Through the unique structural design of the jet slurry mixer 9, the batching process of the drilling fluid is optimized, and the batching quality and efficiency are improved.

[0086] In some examples, such as Figure 5 As shown, the jet slurry mixer 9 further includes a breakage member 911. The upper end of the breakage member 911 is spiked and is arranged in the feeding hopper 910; the extension pipe 912 is communicated with the closing section 907 and is located in the slurry mixing chamber 905. The lower end of the feeding hopper 910 faces the outer wall of the extension pipe 912. An annular space 913 is formed between the extension pipe 912 and the inner wall of the slurry mixing chamber 905, and the lower end of the feeding hopper 910 leads to the annular space 913.

[0087] In this drilling fluid reserve and recycling mud station: The jet slurry mixer 9 further includes a breakage member 911 and an extension pipe 912. The upper end of the breakage member 911 is spiked and is arranged in the feeding hopper 910. Its function is to break the possible powder lumps when the powder materials enter the feeding hopper 910, so that the powder materials can enter the slurry mixing chamber 905 more uniformly. The extension pipe 912 is communicated with the closing section 907 and is located in the slurry mixing chamber 905. The lower end of the feeding hopper 910 faces the outer wall of the extension pipe 912. An annular space 913 is formed between the extension pipe 912 and the inner wall of the slurry mixing chamber 905, and the lower end of the feeding hopper 910 leads to the annular space 913.

[0088] During actual operation, for example, when water accelerates through the closing section 907 and enters the extension pipe 912, the high-speed jet generated forms a strong eddy current in the annular space 913. The powder materials falling from the feeding hopper 910 first enter the annular space 913 and are fully mixed with the high-speed water flow under the action of the eddy current.

[0089] The advantages of this design are as follows: First, the breakage member 911 effectively prevents powder lumping and ensures the uniform addition of powder materials. Second, the design of the extension pipe 912 and the annular space 913 further enhances the mixing effect of water and powder materials, improving the mixing uniformity and efficiency.

[0090] For example, when dealing with powder materials of different properties, it can ensure the stability and reliability of the mixing effect.

[0091] In terms of technical effects, the uniformity and stability of the mixture of water and powder are significantly improved, and the quality of the drilling fluid is enhanced. Overall working principle: Water forms a vortex in the extension pipe 912 and the annular space 913, and the powder is fully mixed with water in the annular space 913 after being processed by the breakage member 911. Overall technical effect: By optimizing the internal structure of the jet slurry mixer 9, the batching performance of the drilling fluid is further improved, and the working efficiency and product quality of the mud station are increased.

[0092] In some examples, such as Figure 6 、 Figure 7 As shown, the vibrating screen assembly 2 includes a first screen body 201. On one side above the first screen body 201 is a vibrating slurry feeding port 224, below is a vibrating slurry discharging port 225, and at the lower end is a vibrating sand discharging port 226; a second screen body 202 is located above the first screen body 201 and on one side of the vibrating sand discharging port 226; a suction pipe 203 extends into the first cavity 101, and the suction pipe 203 has a number of diversion ports 204; there are several spiral sand throwing members 205, which have spiral sand throwing cavities 206. At the bottom of the spiral sand throwing cavity 206 is a sand throwing and discharging port 207, and one side of the upper part is communicated with the diversion port 204; the confluence pipe 208 has a number of confluence ports 209, and the top of the spiral sand throwing cavity 206 leads to the confluence port 209.

[0093] In this drilling fluid reserve and recovery mud station: The vibrating screen assembly 2 is composed of a first screen body 201, a second screen body 202, a suction pipe 203, spiral sand throwing members 205 and a confluence pipe 208. On one side above the first screen body 201 is a vibrating slurry feeding port 224 for receiving waste mud, below is a vibrating slurry discharging port 225, and the screened mud flows out from here. At the lower end is a vibrating sand discharging port 226, and larger sand grains are discharged from here. The second screen body 202 is located above the first screen body 201 and on one side of the vibrating sand discharging port 226 to further screen the mud. The suction pipe 203 extends into the first cavity 101 and has a number of diversion ports 204. There are several spiral sand throwing members 205, which have spiral sand throwing cavities 206. At the bottom of the spiral sand throwing cavity 206 is a sand throwing and discharging port 207, and one side of the upper part is communicated with the diversion port 204. The confluence pipe 208 has a number of confluence ports 209, and the top of the spiral sand throwing cavity 206 leads to the confluence port 209.

[0094] During actual operation, the waste mud enters the first screen body 201 from the vibrating slurry feeding port 224. After preliminary screening, the mud flows out from the vibrating slurry discharging port 225 and enters the first cavity 101, and the larger sand grains are discharged from the vibrating sand discharging port 226 to the second screen body 202 for re-screening.

[0095] The mud in the first cavity 101 enters the spiral sand-throwing cavity 206 of the spiral sand-throwing member 205 through the diversion port 204 of the suction pipe 203. Under the action of centrifugal force, the sand grains are discharged from the sand-throwing outlet 207 at the bottom, and the treated mud enters the confluence port 209 of the confluence pipe 208 from the top of the spiral sand-throwing cavity 206.

[0096] The advantages of this design are as follows: First, through multi-stage screening and centrifugal sand throwing, the sand grains in the mud can be separated more effectively, improving the quality of the mud. Second, the coordinated work of each component improves the processing efficiency and stability of the vibrating screen assembly 2.

[0097] For example, when treating a large amount of waste mud with a high sand content, it can ensure good separation effect and continuous working ability.

[0098] In terms of technical effects, the separation effect and processing efficiency of the sand grains in the mud are significantly improved. Overall working principle: The waste mud is screened through the first sieve body 201 and the second sieve body 202 in sequence, and the mud in the first cavity 101 is centrifugally sand-thrown in the spiral sand-throwing member 205 and then confluences through the confluence pipe 208. Overall technical effect: By optimizing the structure and working process of the vibrating screen assembly 2, the processing capacity and quality of the waste mud by the mud station are improved.

[0099] In some examples, such as Figure 9 shown, the vibrating screen assembly 2 further includes a sliding stopper 210. The sliding stopper 210 is slidably arranged at the upper part in the spiral sand-throwing cavity 206. The bottom of the sliding stopper 210 has a working surface 211, and the periphery has an outer conical surface 212. The inner wall of the spiral sand-throwing cavity 206 has an inner conical surface 213. The inner conical surface 213 is located around the outer conical surface 212 and forms an annular conical channel 214 between the outer conical surface 212; the first elastic member 215 acts on the sliding stopper 210 to provide a force for the sliding stopper 210 to slide upward to make the annular conical channel 214 smaller. The working surface 211 is used to be acted on by the liquid in the spiral sand-throwing cavity 206 to provide a force for the sliding stopper 210 to move upward to make the annular conical channel 214 larger.

[0100] In this drilling fluid reserve and recycling mud station: The vibrating screen assembly 2 further includes a sliding stopper 210 and a first elastic member 215. The sliding stopper 210 is slidably disposed in the upper part of the spiral sand throwing chamber 206. The bottom of the sliding stopper 210 has a working surface 211, and the periphery has an outer conical surface 212. The inner wall of the spiral sand throwing chamber 206 has an inner conical surface 213, which is located around the outer conical surface 212, and a ring-shaped conical channel 214 is formed between the inner conical surface 213 and the outer conical surface 212. The first elastic member 215 acts on the sliding stopper 210 to provide a force for the sliding stopper 210 to slide upward to make the ring-shaped conical channel 214 smaller. When the liquid in the spiral sand throwing chamber 206 acts on the working surface 211, it will provide a force for the sliding stopper 210 to move upward to make the ring-shaped conical channel 214 larger.

[0101] In actual operation, for example, when mud enters the spiral sand throwing chamber 206, if the mud volume is small or the pressure is low, the elastic force of the first elastic member 215 causes the sliding stopper 210 to remain at a higher position, and the ring-shaped conical channel 214 is smaller, which helps to concentrate the centrifugal force and separate sand grains more effectively. When the mud volume is large or the pressure is high, the acting force of the liquid on the working surface 211 overcomes the elastic force of the first elastic member 215, causing the sliding stopper 210 to move downward, and the ring-shaped conical channel 214 becomes larger, thereby increasing the mud passing volume and avoiding blockage.

[0102] The advantages of this design are as follows: First, it can automatically adjust the size of the ring-shaped conical channel 214 according to the flow rate and pressure of the mud, ensuring the separation effect while improving the processing efficiency. Second, it adapts to the mud treatment requirements under different working conditions, improving the flexibility and stability of the vibrating screen assembly 2.

[0103] For example, in the case of large fluctuations in mud flow rate, it can still maintain a good separation effect and a continuous and stable working state.

[0104] In terms of technical effects, the adaptability of the vibrating screen assembly 2 to different working conditions is significantly improved, and the separation effect and processing efficiency of the mud are optimized. The overall working principle: The size of the ring-shaped conical channel 214 is automatically adjusted through the action of the first elastic member 215 and the mud on the sliding stopper 210 to adapt to different mud treatment conditions. The overall technical effect: By adding the sliding stopper 210 and the first elastic member 215, the performance and adaptability of the vibrating screen assembly 2 are further improved, and the working reliability of the drilling fluid reserve and recycling mud station is enhanced.

[0105] In some examples, such as Figure 9As shown, the inner wall of the sand-throwing outlet 207 has several radial guiding grooves 216. The vibrating screen assembly 2 further includes a necking-down slider 217 which is slidably arranged in the guiding groove 216. A necking-down channel 218 is formed among several necking-down sliders 217. A second elastic member 219 acts on the necking-down slider 217 to provide a force for the necking-down slider 217 to slide towards the middle of the necking-down channel 218, making the necking-down channel 218 smaller.

[0106] In this drilling fluid reserve and recycling mud station: the inner wall of the sand-throwing outlet 207 has several radial guiding grooves 216. The vibrating screen assembly 2 further includes a necking-down slider 217 and a second elastic member 219. The necking-down slider 217 is slidably arranged in the guiding groove 216. A necking-down channel 218 is formed among several necking-down sliders 217. The second elastic member 219 acts on the necking-down slider 217 to provide a force for the necking-down slider 217 to move towards the middle of the necking-down channel 218, making the necking-down channel 218 smaller.

[0107] During the actual working process, for example, when sand grains are discharged from the sand-throwing outlet 207 at the bottom of the spiral sand-throwing cavity 206, if the discharged amount of sand grains is small or the pressure is low, the elastic force of the second elastic member 219 makes the necking-down sliders 217 move closer to the middle, and the necking-down channel 218 becomes smaller, which helps to concentrate the discharge of sand grains and improve the discharge efficiency. When the discharged amount of sand grains is large or the pressure is high, the acting force of the sand grains on the necking-down sliders 217 overcomes the elastic force of the second elastic member 219, making the necking-down sliders 217 slide outwards, and the necking-down channel 218 becomes larger, so as to ensure that the sand grains can be discharged smoothly and avoid blockage.

[0108] The advantages of this design are as follows: First, it can automatically adjust the size of the necking-down channel 218 according to the actual situation of sand grain discharge, optimizing the discharge effect and efficiency of sand grains. Second, it improves the adaptability of the vibrating screen assembly 2 to different working conditions and ensures the stable operation of the equipment.

[0109] For example, when dealing with mud with different sand contents, sand grains can be effectively discharged, reducing the situation that the work efficiency is affected due to the blockage of the sand-throwing outlet 207 by sand grains.

[0110] In terms of technical effects, the adaptability and stability of the sand-throwing outlet 207 for sand grain discharge are significantly improved, and the overall performance of the vibrating screen assembly 2 is enhanced. Overall working principle: The size of the necking-down channel 218 is automatically adjusted through the actions of the second elastic member 219 and sand grains on the necking-down slider 217 to adapt to different sand grain discharge conditions. Overall technical effect: By adding the necking-down slider 217 and the second elastic member 219, the sand discharging function of the vibrating screen assembly 2 is further optimized, and the work efficiency and reliability of the drilling fluid reserve and recycling mud station are improved.

[0111] In some examples, such as Figure 9As shown, the inner wall of the sand-throwing outlet 207 also has a number of arc-shaped grooves 220. The vibrating screen assembly 2 further includes a swinging constriction member 221. The upper end of the swinging constriction member 221 swings on the constriction slider 217, and the lower end is slidably disposed within the arc-shaped groove 220. A third elastic member 222 acts on the swinging constriction member 221 to provide a force for the swinging constriction member 221 to swing away from the inner wall of the sand-throwing outlet 207.

[0112] In this drilling fluid reserve and recycling mud station: The inner wall of the sand-throwing outlet 207 also has a number of arc-shaped grooves 220. The vibrating screen assembly 2 further includes a swinging constriction member 221 and a third elastic member 222. The upper end of the swinging constriction member 221 is swingably connected to the constriction slider 217, and the lower end is slidably disposed within the arc-shaped groove 220. The third elastic member 222 acts on the swinging constriction member 221 to provide a force for the swinging constriction member 221 to swing away from the inside of the sand-throwing outlet 207. During actual operation, for example, when sand grains are discharged from the sand-throwing outlet 207, if the discharge amount of the sand grains is small or the pressure is low, the elastic force of the third elastic member 222 causes the swinging constriction member 221 to move away from the inside of the sand-throwing outlet 207, so that the sand-throwing outlet 207 is relatively large, which helps the smooth discharge of the sand grains. When the discharge amount of the sand grains is large or the pressure is high, the acting force of the sand grains on the swinging constriction member 221 overcomes the elastic force of the third elastic member 222, causing the swinging constriction member 221 to swing towards the inside of the sand-throwing outlet 207, playing a certain current-limiting role to prevent the sand grains from being discharged too fast and causing blockage or other problems.

[0113] The advantages of this design are as follows: First, it can further adjust the effective size of the sand-throwing outlet 207 according to the actual situation of the sand grain discharge, improving the stability and efficiency of the sand grain discharge. Second, in cooperation with the constriction slider 217, it enhances the flexibility and adaptability of adjusting the size of the sand-throwing outlet 207. Third, it improves the reliability and stability of the vibrating screen assembly 2 under different working conditions.

[0114] For example, when dealing with mud with a large change in sand content, it can better adapt and ensure the smooth and stable sand discharge.

[0115] In terms of technical effects, it significantly improves the adjustment ability and adaptability of the sand-throwing outlet 207 for sand grain discharge, and optimizes the working performance of the vibrating screen assembly 2. The overall working principle: Through the action of the third elastic member 222 and the sand grains on the swinging constriction member 221, the effective size of the sand-throwing outlet 207 is automatically adjusted to adapt to different sand grain discharge conditions. The overall technical effect: By adding the swinging constriction member 221 and the third elastic member 222, the sand discharge adjustment mechanism of the vibrating screen assembly 2 is further improved, and the working effect and reliability of the drilling fluid reserve and recycling mud station are enhanced.

[0116] In some examples, as Figure 9 shown, the end of the constriction slider 217 has a smooth guiding spherical surface 223.

[0117] In this drilling fluid reserve and recycling mud station: The end of the reduced-orifice slider 217 has a smooth guiding spherical surface 223. During actual operation, when sand grains pass through the sand-throwing outlet 207, the smooth guiding spherical surface 223 at the end of the reduced-orifice slider 217 can play the following roles: First, it reduces the jamming and accumulation of sand grains at the end of the reduced-orifice slider 217, enabling the sand grains to pass through the sand-throwing outlet 207 more smoothly and improving the sand discharge efficiency. Second, it reduces the wear of the sand grains on the reduced-orifice slider 217 and extends the service life of the reduced-orifice slider 217.

[0118] For example, when dealing with a large amount of hard-textured sand grains, the smooth guiding spherical surface 223 can effectively prevent sand grain blockage and excessive wear on the reduced-orifice slider 217.

[0119] The advantages of this design are as follows: First, it optimizes the sand discharge process and reduces the possibility of failures. Second, it improves the durability of the reduced-orifice slider 217 and reduces the maintenance cost. In terms of technical effects, it significantly improves the smoothness of sand discharge at the sand-throwing outlet 207 and the stability of the equipment. The overall working principle: With the help of the smooth guiding spherical surface 223 at the end of the reduced-orifice slider 217, sand grains are discharged from the sand-throwing outlet 207 more efficiently and stably. The overall technical effect: By setting the smooth guiding spherical surface 223 at the end of the reduced-orifice slider 217, the sand discharge performance of the vibrating screen assembly 2 is further improved, and the working efficiency and reliability of the drilling fluid reserve and recycling mud station are enhanced.

[0120] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit them. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. A drilling fluid storage and recovery mud station, characterized in that: include: A circulation box (1), the circulation box (1) comprising a first cavity (101) and a second cavity (102) arranged in sequence, and a platform (103) is provided on the top of the circulation box (1); a vibrating screen assembly (2), the vibrating screen assembly (2) being arranged on the platform (103), and having a vibrating pulp delivery port (224), a vibrating pulp outlet port (225) and a vibrating sand outlet port (226), the vibrating pulp outlet port (225) leading to the first cavity (101); a first centrifuge (3), the first centrifuge (3) being arranged on the platform (103), having a first pulp inlet (301), a first pulp outlet (302) and a first sand outlet (303), the first cavity (101) leading to the first pulp inlet (301), and the first pulp outlet (302) leading to the second cavity (102); The vibrating screen assembly (2) comprises a spiral sand-flinging component (205), the spiral sand-flinging component (205) has a spiral sand-flinging cavity (206), and the bottom of the spiral sand-flinging cavity (206) has a sand-flinging outlet (207); The inner wall of the sand ejection outlet (207) has a plurality of radial guide grooves (216), and the vibrating screen assembly (2) further comprises: A shrinking slider (217), wherein the shrinking slider (217) is slidably disposed in the guide groove (216), and a shrinking channel (218) is formed between a plurality of the shrinking sliders (217); a second elastic member (219), the second elastic member (219) acting on the shrinking slider (217) to provide a force for the shrinking slider (217) to slide toward the middle of the shrinking channel (218) so as to reduce the size of the shrinking channel (218); The inner wall of the sand ejection outlet (207) further comprises a plurality of arc-shaped grooves (220), and the vibrating screen assembly (2) further comprises: A swinging necking member (221), wherein the upper end of the swinging necking member (221) swings on the necking slider (217), and the lower end is slidably disposed in the arc-shaped groove (220); A third elastic member (222), the third elastic member (222) acts on the swinging and shrinking member (221) to provide a force for the swinging and shrinking member (221) to swing away from the inner wall of the sand throwing and outlet port (207).

2. A drilling fluid reserve and recovery mud station according to claim 1, characterized in that: The circulation box (1) further comprises a third cavity (104), and further comprises: a second centrifuge (4), the second centrifuge (4) being arranged on the platform (103), having a second pulp inlet (401), a second pulp outlet (402) and a centrifugal sand outlet (403), the second cavity (102) leading to the second pulp inlet (401), and the second pulp outlet (402) leading to the third cavity (104); A liquid storage tank (5), wherein the third cavity (104) leads to the liquid storage tank (5); an agitator (6), wherein the second cavity (102) and the third cavity (104) are both provided with the agitator (6); A mud gun (7), wherein the mud gun (7) is disposed in both the second cavity (102) and the third cavity (104).

3. A drilling fluid reserve recovery mud station according to claim 2, characterized in that: Also includes: A batching box (8), the batching box (8) having a fourth cavity (801) and a fifth cavity (802) arranged in sequence; A jet mixer (9), the jet mixer (9) having a water inlet (901), a powder inlet (902) and a slurry outlet (903), the fourth cavity (801) leading to the water inlet (901), and the slurry outlet (903) leading to the fifth cavity (802).

4. A drilling fluid reserve recovery mud station according to claim 3, characterized in that: The jet mixer (9) comprises: A slurry mixing body (904), wherein the slurry mixing body (904) has a slurry mixing cavity (905); a jet pipe (906), the jet pipe (906) leading to the slurry mixing chamber (905) and having the water inlet (901), the jet pipe (906) having a closing section (907), the inner diameter of the closing section (907) gradually decreasing from being away from the slurry mixing chamber (905) to being close to the slurry mixing chamber (905); a diverging pipe (908), the slurry mixing chamber (905) leading to the diverging pipe (908) and having the slurry mixing outlet (903), the jet pipe (906) having a flaring section (909), the inner diameter of the flaring section (909) gradually increasing from close to the slurry mixing chamber (905) to far away from the slurry mixing chamber (905); A feeding hopper (910), the feeding hopper (910) leads to the slurry mixing chamber (905).

5. A drilling fluid reserve recovery mud station according to claim 4, characterized in that: The jet mixer (9) further comprises: A rupture piece (911), the upper end of which is spike-shaped and is disposed in the feeding hopper (910); An extension pipe (912), the extension pipe (912) is connected to the closing section (907) and is located in the mixing chamber (905), the lower end of the feeding hopper (910) faces the outer wall of the extension pipe (912), an annular space (913) is formed between the extension pipe (912) and the inner wall of the mixing chamber (905), and the lower end of the feeding hopper (910) leads to the annular space (913).

6. A drilling fluid reserve and recovery mud station according to claim 1, characterized in that: The vibrating screen assembly (2) further comprises: A first screen body (201), wherein the first screen body (201) has a vibration slurry delivery port (224) on one side above, a vibration slurry discharge port (225) below, and a vibration sand discharge port (226) at the lower end; a second sieve body (202), the second sieve body (202) being located above the first sieve body (201) and on one side of the vibrating sand outlet (226); A suction pipe (203), the suction pipe (203) extends into the first cavity (101), the suction pipe (203) has a plurality of diversion ports (204), there are a plurality of spiral sand throwing members (205), and one side of the upper portion of the spiral sand throwing member (205) is in communication with the diversion ports (204); A confluence pipe (208), wherein the confluence pipe (208) has a plurality of confluence ports (209), and the top of the spiral sand-throwing chamber (206) leads to the confluence ports (209).

7. A drilling fluid reserve and recovery mud station according to claim 6, characterized in that: The vibrating screen assembly (2) further comprises: A sliding stopper (210), the sliding stopper (210) being slidably disposed at the upper portion of the spiral sand throwing chamber (206), the sliding stopper (210) having an action surface (211) at the bottom and having outer conical surfaces (212) around it, the inner wall of the spiral sand throwing chamber (206) having an inner conical surface (213), the inner conical surface (213) being located around the outer conical surface (212) and forming an annular conical channel (214) between the outer conical surface (212); A first elastic member (215), the first elastic member (215) acts on the sliding stopper (210) to provide a force for the sliding stopper (210) to slide upward so that the annular conical channel (214) becomes smaller, and the action surface (211) is used to be acted upon by the liquid in the spiral sand throwing chamber (206) to provide a force for the sliding stopper (210) to move upward so that the annular conical channel (214) becomes larger.

8. The drilling fluid storage and recovery mud station according to claim 1, characterized in that: The end of the shrinking slider (217) has a smooth guiding spherical surface (223).

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