Drilling fluid storage and recovery slurry station

Abstract

The embodiment of the invention relates to the technical field of drilling mud stations, and provides a drilling fluid storage and recovery mud station which comprises a circulating box body, the circulating box body is provided with a first cavity and a second cavity which are arranged in sequence, and the top of the circulating box body is provided with a platform; the vibrating screen assembly is arranged on the platform and provided with a vibrating slurry feeding port, a vibrating slurry outlet and a vibrating sand outlet, and the vibrating slurry outlet leads to the first cavity; the first centrifugal machine is arranged on the platform and is provided with 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. According to the technical scheme, the technical problems of poor drilling fluid particle removal effect and low proportioning efficiency of a slurry station in the prior art are solved.

Description

Technical Field

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

[0002] The drilling fluid reserve and recovery mud station is mainly used to reserve and recover drilling fluid, which is commonly known as drilling mud or mud. Reserve drilling fluid means to reserve enough drilling fluid before and during drilling operations to meet drilling needs and prevent operation interruption due to insufficient drilling fluid supply. Recovery drilling fluid means to collect the waste drilling fluid returned to the ground during the drilling process for subsequent treatment and reuse, reducing waste and environmental pollution.

[0003] The waste mud on site is transported to the storage tank or mud pool of the recovery mud station through a mud pump or other conveying equipment through a pipeline. During the transportation process, it will pass through preliminary filtering or screening equipment to remove larger solid particles. The recovered mud will undergo a series of treatment processes in the station, such as sedimentation, centrifugal separation, filtration, chemical treatment, etc., to remove solid particles and harmful components, and adjust the performance parameters of the mud to meet the standards for reuse. The treated mud is transported back to the drilling site and reused in drilling operations, forming a recycling process to reduce drilling costs and environmental impacts. When the mud station is recycling and storing mud, it may involve the new preparation of 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, which affects the work of the drilling fluid. On the other hand, when the mud station prepares new drilling fluid, it is often directly mixed in the mud pool, which not only has low mixing efficiency, but also has poor raw material ratio during mixing, resulting in general mud quality. Summary of the invention

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

[0005] According to one aspect, at least one embodiment of the present disclosure provides a drilling fluid reserve recovery mud station, comprising: A circulation box, wherein the circulation box has a first cavity and a second cavity arranged in sequence, and a platform is provided on the top of the circulation box; A vibrating screen assembly, the vibrating screen assembly is arranged on the platform, and has a vibrating pulp delivery port, a vibrating pulp outlet port and a vibrating sand outlet port, the vibrating pulp outlet port leads to the first cavity; The first centrifuge is arranged 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.

[0006] For example, at least one embodiment of the present disclosure provides a drilling fluid reserve recovery mud station, wherein the circulation box further has a third cavity, and further includes: a second centrifuge, wherein the second centrifuge is arranged on the platform and has a second pulp inlet, a second pulp outlet and a centrifugal sand outlet, the second cavity leads to the second pulp inlet, and the second pulp outlet leads to the third cavity; A liquid storage tank, wherein the third cavity leads to the liquid storage tank; A stirrer, wherein the second cavity and the third cavity are both provided with the stirrer; A mud gun is provided in the second cavity and the third cavity.

[0007] For example, at least one embodiment of the present disclosure provides a drilling fluid reserve recovery mud station, further comprising: A batching box, wherein the batching box has a fourth cavity and a fifth cavity arranged in sequence; A jet mixer, wherein the jet mixer has a water inlet, a powder inlet and a mixing outlet, the fourth cavity leads to the water inlet, and the mixing outlet leads to the fifth cavity.

[0008] For example, at least one embodiment of the present disclosure provides a drilling fluid reserve recovery mud station, wherein the jet mixer comprises: A slurry mixing body, wherein the slurry mixing body has a slurry mixing cavity; A jet pipe, the jet pipe leads to the mixing chamber and has the water inlet, the jet pipe has a closing section, and the inner diameter of the closing section gradually decreases from far away from the mixing chamber to close to the mixing chamber; A diverging pipe, the slurry mixing chamber leads to the diverging pipe and has the slurry mixing outlet, the jet pipe has a flaring section, the inner diameter of the flaring section gradually increases from close to the slurry mixing chamber to far away from the slurry mixing chamber; A feeding hopper is connected to the mixing chamber.

[0009] For example, in at least one embodiment of the present disclosure, a drilling fluid reserve recovery mud station is provided, wherein the jet mixer further comprises: A breaker, the upper end of which is spike-shaped and is disposed in the feeding hopper; An extension pipe is connected to the closing section and is located in the mixing chamber. 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 mixing chamber, and the lower end of the feeding hopper leads to the annular space.

[0010] For example, at least one embodiment of the present disclosure provides a drilling fluid reserve recovery mud station, wherein the shaker assembly comprises: A first screen body, wherein one side above the first screen body is the vibration slurry delivery port, the lower side is the vibration slurry outlet, and the lower end is the vibration sand outlet; A second screen body, wherein the second screen body is located above the first screen body and at one side of the vibrating sand outlet; A suction pipe, the suction pipe extends into the first cavity, and the suction pipe has a plurality of diversion ports; A spiral sand throwing piece, wherein the spiral sand throwing piece is in a plurality of pieces and has a spiral sand throwing cavity, the bottom of the spiral sand throwing cavity has a sand throwing outlet, and one side of the upper part is connected with the diversion port; The confluence pipe has a plurality of confluence ports, and the top of the spiral sand-throwing chamber leads to the confluence ports.

[0011] For example, in at least one embodiment of the present disclosure, a drilling fluid reserve recovery mud station is provided, wherein the shaker assembly further comprises: A sliding stopper, wherein the sliding stopper is slidably arranged at the upper part of the spiral sand throwing chamber, the bottom of the sliding stopper has an action surface, and the surrounding has an outer conical surface, the inner wall of the spiral sand throwing chamber has an inner conical surface, and the inner conical surface is located around the outer conical surface and forms an annular conical channel between the outer conical surface; The first elastic member acts on the sliding stopper to provide a force for the sliding stopper to slide upward so as to reduce the annular conical channel, and the action surface is used to be acted upon by the liquid in the spiral sand throwing chamber to provide a force for the sliding stopper to move upward so as to increase the annular conical channel.

[0012] For example, in at least one embodiment of the present disclosure, a drilling fluid reserve recovery mud station is provided, wherein the inner wall of the sand ejection outlet has a plurality of radial guide grooves, and the vibrating screen assembly further comprises: A shrinking slider, wherein the shrinking slider is slidably arranged in the guide groove, and a shrinking channel is formed between a plurality of the shrinking sliders; A second elastic member acts on the shrinking slider to provide a force for the shrinking slider to slide toward the middle of the shrinking channel, thereby reducing the size of the shrinking channel.

[0013] For example, in at least one embodiment of the present disclosure, a drilling fluid reserve recovery mud station is provided, wherein the inner wall of the sand ejection outlet further comprises a plurality of arc-shaped grooves, and the vibrating screen assembly further comprises: A swinging necking member, wherein the upper end of the swinging necking member swings on the necking slider, and the lower end is slidably disposed in the arc groove; A third elastic member 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 and sand outlet.

[0014] For example, in at least one embodiment of the present disclosure, a drilling fluid reserve recovery mud station is provided, wherein the end of the necked sliding block has a smooth guiding spherical surface.

[0015] The beneficial effects of the embodiments of the present disclosure are: In the present disclosure, the drilling fluid reserve recovery mud station significantly improves the ability to remove solid particles in the waste mud and optimizes the mud recovery process. The waste mud is processed by the vibrating screen assembly and the first centrifuge in turn to achieve solid-liquid separation, and the treated mud enters the first cavity and the second cavity in turn. Through reasonable equipment layout and processing flow design, the recovery and processing efficiency and quality of the mud station are improved, and the cost and impact on the environment are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on the contents of the exemplary embodiments of the present disclosure and these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of a drilling fluid storage and recovery mud station in the present disclosure; Figure 2 It is a schematic diagram of the internal structure of the circulation box in the present disclosure; Figure 3 It is a schematic diagram of the internal structure of the batching box in the present disclosure; Figure 4 It is a schematic diagram of the structure of the jet mixer in the present disclosure; Figure 5 Schematic diagram of the internal structure of the jet mixer in the present disclosure; Figure 6 The structure of the vibrating screen assembly in the present disclosure is shown in FIG. Figure 1 ; Figure 7 for Figure 6 Middle A is a schematic diagram of a partially enlarged structure; Figure 8 The structure of the vibrating screen assembly in the present disclosure is shown in FIG. Figure 2 ; Fig. 9 for Figure 8 Middle B is a schematic diagram of a partially enlarged structure; In the figure: circulation box-1, first cavity-101, second cavity-102, platform-103, third cavity-104, vibrating screen assembly-2, first screen body-201, second screen body-202, suction pipe-203, diversion port-204, spiral sand throwing member-205, spiral sand throwing cavity-206, sand throwing sand outlet-207, confluence pipe-208, confluence port-209, sliding stopper-210, action surface-211, outer conical surface-212, inner conical surface-213, annular conical channel-214, first elastic member-215, guide groove-216, shrinking slider-217, shrinking channel-218, second elastic member-219, arc groove-220, swing shrinking member-221, third elastic member-222, smooth guide spherical surface-223, vibration Dynamic slurry delivery port-224, vibration slurry outlet-225, vibration 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, agitator-6, mud gun-7, batching box-8, fourth cavity-801, fifth cavity-802, jet mixer-9, water inlet-901, powder inlet-902, slurry outlet-903, slurry body-904, slurry mixing cavity-905, jet pipe-906, closing section-907, diverging pipe-908, expanding section-909, feeding hopper-910, rupture piece-911, extension pipe-912, annular space-913. DETAILED DESCRIPTION

[0018] The present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0019] In order to simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0020] In this document, 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0021] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0023] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] like Figure 1 to Figure 9 As shown, it shows a drilling fluid reserve recovery mud station in an embodiment of the present disclosure, including a circulation box 1, the circulation box 1 has a first cavity 101 and a second cavity 102 arranged in sequence, and the top of the circulation box 1 has a platform 103; a vibrating screen assembly 2, the vibrating screen assembly 2 is arranged on the platform 103, and has a vibration slurry delivery port 224, a vibration slurry outlet 225 and a vibration sand outlet 226, and the vibration slurry outlet 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 inlet 301, a first slurry outlet 302 and a first sand outlet 303, the first cavity 101 leads to the first slurry inlet 301, and the first slurry outlet 302 leads to the second cavity 102.

[0025] In the drilling fluid storage and recovery mud station: first, there is a circulation box 1, the interior of which is divided into a first cavity 101 and a second cavity 102 arranged in sequence, and a platform 103 is provided on the top.

[0026] The vibrating screen assembly 2 is installed on the platform 103, and has a vibrating slurry delivery port 224, a vibrating slurry outlet 225, and a vibrating sand outlet 226. The waste mud at the drilling site is fed into the vibrating screen assembly 2 from the vibrating slurry delivery port 224, and after vibration screening, larger sand particles are discharged from the vibrating sand outlet 226, and the screened mud flows into the first cavity 101 from the vibrating slurry outlet 225. The first centrifuge 3 is also arranged on the platform 103, and the mud in the first cavity 101 is transported to the first slurry inlet 301 of the first centrifuge 3. Under the action of the first centrifuge 3, fine solid particles are further separated, and these particles are discharged from the first sand outlet 303, and the treated mud flows from the first slurry outlet 302 to the second cavity 102.

[0027] In practical applications, for example, during drilling operations, the waste mud returned from the drilling site first passes through the vibrating screen assembly 2 to remove larger solid particles, and then enters the first centrifuge 3 for finer solid-liquid separation.

[0028] The advantages of this design are: first, through the combination of the vibrating screen assembly 2 and the first centrifuge 3, multi-stage separation of waste mud is achieved, the effect of solid particle removal is improved, and better conditions are provided for subsequent mud treatment and reuse. Second, the vibrating screen assembly 2 and the first centrifuge 3 are arranged on the platform 103, which saves space and facilitates the installation and maintenance of the equipment.

[0029] For example, when processing large amounts of waste mud, solid particles can be removed more efficiently, ensuring the quality of the recovered mud and improving the recycling rate of the mud.

[0030] In terms of technical effects, the ability to remove solid particles in waste mud has been significantly improved, and the mud recovery and processing process has been optimized. Overall working principle: the waste mud is processed by the vibrating screen assembly 2 and the first centrifuge 3 in turn to achieve solid-liquid separation, and the treated mud enters the first cavity 101 and the second cavity 102 in turn. Overall technical effect: through reasonable equipment layout and processing process design, the recovery and processing efficiency and quality of the mud station are improved, and the cost and impact on the environment are reduced.

[0031] In some examples, such as Figure 2 , Figure 6 As shown, the circulation box 1 also has a third cavity 104, and 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; the second cavity 102 and the third cavity 104 are both provided with a stirrer 6; the second cavity 102 and the third cavity 104 are both provided with a mud gun 7.

[0032] In the present drilling fluid reserve recovery mud station: the circulation box 1 has a third cavity 104 in addition to the first cavity 101 and the second cavity 102. The second centrifuge 4 is arranged on the platform 103, and the mud in the second cavity 102 is transported to the second slurry inlet 401 of the second centrifuge 4. After further separation and 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 connected to the liquid storage tank 5, and the high-quality mud after multiple treatments is stored in the liquid storage tank 5 for standby use. At the same time, agitators 6 and mud guns 7 are arranged in the second cavity 102 and the third cavity 104.

[0033] 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 sedimentation and stratification. The mud gun 7 is used to enhance the mixing and processing effect of the mud.

[0034] The advantages of this design are: first, by adding the second centrifuge 4 and the third chamber 104, the processing 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 processing and improves the processing effect. Third, the existence of the liquid storage tank 5 facilitates the storage and subsequent use of high-quality mud.

[0035] For example, in drilling operations that require higher mud quality, it can provide mud that better meets the requirements to ensure the smooth progress of the drilling work.

[0036] In terms of technical effects, the processing 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 processing steps in the circulation box 1, is fully mixed and processed under the action of the agitator 6 and the mud gun 7, and is finally stored in the liquid storage tank 5. Overall technical effect: Through the perfect processing process and equipment configuration, the recycling efficiency and quality of the drilling fluid are improved, meeting the needs under different working conditions.

[0037] In some examples, such as Figure 3 , Figure 4 As shown, it also includes a batching box 8, which has a fourth cavity 801 and a fifth cavity 802 arranged in sequence; the jet mixer 9 has a water inlet 901, a powder inlet 902 and a mixing outlet 903, the fourth cavity 801 leads to the water inlet 901, and the mixing outlet 903 leads to the fifth cavity 802.

[0038] In the present drilling fluid reserve recovery mud station: a new batching box 8 is added, which has a fourth cavity 801 and a fifth cavity 802 arranged in sequence. A jet mixer 9 is also provided, and the jet mixer 9 has a water inlet 901, a powder inlet 902 and a slurry outlet 903. The water in the fourth cavity 801 flows to the water inlet 901, and the powder is added from the powder inlet 902. After being mixed by the jet mixer 9, the mixed mud flows from the slurry outlet 903 to the fifth cavity 802.

[0039] In actual operation, for example, when a new drilling fluid is required, the water in the fourth chamber 801 is introduced into the water inlet 901 of the jet mixer 9, and the corresponding powder is added from the powder inlet 902. The jet mixer 9 uses the jet effect of water to quickly and evenly mix the powder to form a new drilling fluid and transport it to the fifth chamber 802.

[0040] The advantages of this design are: first, the jet mixer 9 can achieve rapid and efficient mixing of water and powder, thereby improving batching efficiency; second, the partition design of the batching box 8 makes the batching process more orderly and easy to control and manage.

[0041] 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.

[0042] 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 mixer 9 from the fourth cavity 801, mixes with the powder added from the powder inlet 902, and then enters the fifth cavity 802. Overall technical effect: By introducing the jet mixer 9 and the reasonable design of the batching box 8, the batching process of the new drilling fluid is optimized, and the working efficiency and drilling fluid quality are improved.

[0043] In some examples, such as Figure 4 , Figure 5 As shown, the jet mixer 9 includes a mixing body 904, which has a mixing chamber 905; a jet tube 906 leads to the mixing chamber 905 and has a water inlet 901, and the jet tube 906 has a closing section 907, and the inner diameter of the closing section 907 gradually decreases from away from the mixing chamber 905 to close to the mixing chamber 905; the mixing chamber 905 leads to a diverging tube 908 and has a mixing outlet 903, and the jet tube 906 has a flaring section 909, and the inner diameter of the flaring section 909 gradually increases from close to the mixing chamber 905 to away from the mixing chamber 905; a feeding hopper 910 leads to the mixing chamber 905.

[0044] In the present drilling fluid reserve recovery mud station: the jet mixer 9 is mainly composed of a mixing body 904, a jet pipe 906, a diverging pipe 908 and a hopper 910. The mixing body 904 has a mixing chamber 905 inside, which is used to contain water and powder for mixing. The jet pipe 906 leads to the mixing chamber 905 and has a water inlet 901. The closing section 907 of the jet pipe 906 gradually decreases in inner diameter from far away from the mixing chamber 905 to close to the mixing chamber 905. When water enters the jet pipe 906 from the water inlet 901 and passes through the closing section 907, the water flow velocity increases to form a high-speed jet.

[0045] The diverging pipe 908 is connected to the mixing chamber 905 and has a mixing outlet 903. The inner diameter of the expanded section 909 of the diverging pipe 908 gradually increases from close to the mixing chamber 905 to far away from the mixing chamber 905, which helps to slow down the flow rate of the mixed mud and make the mixing more complete. The feeding hopper 910 leads to the mixing chamber 905 and is used to add powder.

[0046] In the actual working process, for example, when the drilling fluid is newly prepared, water enters the jet tube 906 from the water inlet 901, and is accelerated to form a high-speed jet through the closing section 907 and enters the slurry mixing chamber 905. At the same time, powder is added to the slurry mixing chamber 905 through the feeding hopper 910. The negative pressure generated by the high-speed jet will suck the powder into the slurry mixing chamber 905, and the water and powder will be fully mixed in the slurry mixing chamber 905. The mixed mud will then flow out from the slurry mixing outlet 903 through the diverging pipe 908.

[0047] The advantages of this design are: first, the high-speed jet is generated by the closing section 907 of the jet tube 906, which enhances the suction and mixing effect of the powder. Second, the expanding section 909 of the diverging tube 908 helps to make the mixing more uniform and sufficient. Third, the whole structure is compact and the mixing efficiency is high.

[0048] For example, when high-quality drilling fluid needs to be configured quickly and efficiently, the mixing effect can be fully guaranteed, thereby improving work efficiency and drilling fluid quality.

[0049] In terms of technical effects, the mixing uniformity and mixing efficiency of water and powder are significantly improved. Overall working principle: water is accelerated through the jet pipe 906 to form a jet, driving the powder to mix in the mixing chamber 905, and then flowing out through the divergent pipe 908. Overall technical effect: Through the unique structural design of the jet mixer 9, the batching process of the drilling fluid is optimized, and the batching quality and efficiency are improved.

[0050] In some examples, such as Figure 5As shown, the jet mixer 9 also includes a rupture piece 911, the upper end of which is spike-shaped and is arranged in the feeding hopper 910; 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, and 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.

[0051] In the present drilling fluid reserve recovery mud station: the jet mixer 9 also includes a break piece 911 and an extension pipe 912. The upper end of the break piece 911 is a spike type and is arranged in the hopper 910. Its function is to break the possible agglomeration of powder when the powder enters the hopper 910, so that the powder enters the mixing chamber 905 more evenly. The extension pipe 912 is connected to the closing section 907 and is located in the mixing chamber 905. The lower end of the hopper 910 faces the outer wall of the extension pipe 912, and 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 hopper 910 leads to the annular space 913.

[0052] In actual operation, for example, when water is accelerated into the extension pipe 912 through the closing section 907, the generated high-speed jet forms a strong vortex in the annular space 913. The powder falling from the hopper 910 first enters the annular space 913 and is fully mixed with the high-speed water flow under the action of the vortex.

[0053] The advantages of this design are: first, the breaker 911 effectively prevents the powder from agglomerating, ensuring uniform addition of the powder; and second, the design of the extension tube 912 and the annular space 913 further enhances the mixing effect of water and powder, improving the uniformity and efficiency of mixing.

[0054] For example, when processing powders of different properties, it can ensure the stability and reliability of the mixing effect.

[0055] In terms of technical effects, the uniformity and stability of the mixing of water and powder are significantly improved, and the quality of drilling fluid is improved. 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 rupture piece 911. Overall technical effect: By optimizing the internal structure of the jet mixer 9, the batching performance of the drilling fluid is further improved, and the working efficiency and product quality of the mud station are improved.

[0056] In some examples, such as Figure 6 , Figure 7As shown, the vibrating screen assembly 2 includes a first screen body 201, a side above the first screen body 201 is a vibrating slurry delivery port 224, a bottom is a vibrating slurry outlet 225, and a lower end is a vibrating sand outlet 226; the second screen body 202 is located above the first screen body 201 and is located on one side of the vibrating sand outlet 226; the suction pipe 203 extends into the first cavity 101, and the suction pipe 203 has a plurality of diversion ports 204; there are a plurality of spiral sand throwing parts 205, which have a spiral sand throwing cavity 206, and the bottom of the spiral sand throwing cavity 206 has a sand throwing outlet 207, and one side of the upper part is connected to the diversion port 204; the confluence pipe 208 has a plurality of confluence ports 209, and the top of the spiral sand throwing cavity 206 leads to the confluence port 209.

[0057] In the drilling fluid reserve 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, a spiral sand throwing piece 205 and a confluence pipe 208. The first screen body 201 has a vibration slurry delivery port 224 on one side above it for receiving waste mud, a vibration slurry outlet 225 below it, from which the screened mud flows out, and a vibration sand outlet 226 at the lower end, from which larger sand particles are discharged. The second screen body 202 is located above the first screen body 201 and on one side of the vibration sand outlet 226, and further screens the mud. The suction pipe 203 extends into the first cavity 101 and has a plurality of diversion ports 204. There are a plurality of spiral sand throwing pieces 205, which have a spiral sand throwing cavity 206, and a sand throwing and sand outlet 207 at the bottom of the spiral sand throwing cavity 206, and one side of the upper part is connected to the diversion port 204. 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 .

[0058] In actual operation, waste slurry enters the first screen body 201 from the vibrating slurry delivery port 224. After preliminary screening, the slurry flows out from the vibrating slurry outlet 225 into the first cavity 101, and larger sand particles are discharged from the vibrating sand outlet 226 to the second screen body 202 for further screening.

[0059] 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 particles 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.

[0060] The advantages of this design are: first, through multi-stage screening and centrifugal sand throwing, sand particles in the mud can be separated more effectively to improve the quality of the mud. Second, the coordinated work of various components improves the processing efficiency and stability of the vibrating screen assembly 2.

[0061] For example, when processing a large amount of waste mud with high sand content, it can ensure better separation effect and continuous working capacity.

[0062] In terms of technical effects, the separation effect and processing efficiency of sand particles in mud are significantly improved. Overall working principle: the waste mud is screened by the first screen body 201 and the second screen body 202 in turn, and the mud in the first cavity 101 is centrifugally spun in the spiral spun sand part 205 and then converged through the manifold 208. Overall technical effect: by optimizing the structure and work flow of the vibrating screen assembly 2, the processing capacity and quality of the mud station for waste mud are improved.

[0063] In some examples, such as Fig. 9 As shown, the vibrating screen assembly 2 also includes a sliding stopper 210, which is slidably arranged in the upper part of the spiral sand throwing chamber 206, and the bottom of the sliding stopper 210 has an action surface 211, and is surrounded by an outer conical surface 212, and the inner wall of the spiral sand throwing chamber 206 has an inner conical surface 213, and 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, providing a force for the sliding stopper 210 to slide upward and reduce the annular conical channel 214, and the action surface 211 is used to be acted on by the liquid in the spiral sand throwing chamber 206, providing a force for the sliding stopper 210 to move upward and increase the annular conical channel 214.

[0064] In the present drilling fluid reserve recovery mud station: the vibrating screen assembly 2 also includes a sliding stopper 210 and a first elastic member 215. The sliding stopper 210 is slidably arranged in the upper part of the spiral sand throwing chamber 206. The bottom of the sliding stopper 210 has an action surface 211, and is surrounded by an outer conical surface 212. The inner wall of the spiral sand throwing chamber 206 has an inner conical surface 213, and the inner conical surface 213 is located around the outer conical surface 212, and an annular 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, providing a force for the sliding stopper 210 to slide upward so that the annular conical channel 214 becomes smaller. When the liquid in the spiral sand throwing chamber 206 acts on the action surface 211, it will provide a force for the sliding stopper 210 to move upward so that the annular conical channel 214 becomes larger.

[0065] In actual operation, for example, when mud enters the spiral sand throwing chamber 206, if the amount of mud is small or the pressure is low, the elastic force of the first elastic member 215 keeps the sliding block 210 at a higher position, and the annular conical channel 214 is smaller, which helps to concentrate the centrifugal force and more effectively separate the sand particles. When the amount of mud is large or the pressure is high, the force of the liquid on the action surface 211 overcomes the elastic force of the first elastic member 215, so that the sliding block 210 moves downward, and the annular conical channel 214 becomes larger, thereby increasing the amount of mud passing through and avoiding blockage.

[0066] The advantages of this design are: first, the size of the annular conical channel 214 can be automatically adjusted according to the flow rate and pressure of the mud, thereby ensuring the separation effect and improving the processing efficiency; second, it can adapt to the mud processing requirements under different working conditions and improve the flexibility and stability of the vibrating screen assembly 2.

[0067] For example, when the mud flow fluctuates greatly, it can still maintain a good separation effect and a continuous and stable working state.

[0068] 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. Overall working principle: Through the action of the first elastic member 215 and the mud on the sliding block 210, the size of the annular conical channel 214 is automatically adjusted to adapt to different mud processing conditions. Overall technical effect: By adding the sliding block 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 recovery mud station is enhanced.

[0069] In some examples, such as Fig. 9 As shown, the inner wall of the sand throwing outlet 207 has a plurality of radial guide grooves 216, and the vibrating screen assembly 2 also includes a shrinking slider 217, which is slidably arranged in the guide groove 216, and a shrinking channel 218 is formed between the plurality of shrinking sliders 217; the second elastic member 219 acts on the shrinking slider 217, providing a force for the shrinking slider 217 to slide toward the middle of the shrinking channel 218, thereby reducing the shrinking channel 218.

[0070] In the present drilling fluid reserve recovery mud station: the inner wall of the sand throwing and sand outlet 207 has a plurality of radial guide grooves 216. The vibrating screen assembly 2 also includes a shrinking slider 217 and a second elastic member 219. The shrinking slider 217 is slidably arranged in the guide groove 216, and a plurality of shrinking sliders 217 form a shrinking channel 218. The second elastic member 219 acts on the shrinking slider 217 to provide a force for the shrinking slider 217 to move toward the middle of the shrinking channel 218, so that the shrinking channel 218 becomes smaller.

[0071] In the actual working process, for example, when sand is discharged from the sand throwing outlet 207 at the bottom of the spiral sand throwing chamber 206, if the amount of discharged sand is small or the pressure is low, the elastic force of the second elastic member 219 causes the shrinking slider 217 to move closer to the middle, and the shrinking channel 218 becomes smaller, which helps to concentrate the discharge of sand and improve the discharge efficiency. When the amount of sand discharged is large or the pressure is high, the force of the sand on the shrinking slider 217 overcomes the elastic force of the second elastic member 219, causing the shrinking slider 217 to slide outward, and the shrinking channel 218 becomes larger, thereby ensuring that the sand can be discharged smoothly and avoiding blockage.

[0072] The advantages of this design are: first, the size of the constricted channel 218 can be automatically adjusted according to the actual situation of sand discharge, thereby optimizing the discharge effect and efficiency of the sand particles; second, the adaptability of the vibrating screen assembly 2 to different working conditions is improved, thereby ensuring the stable operation of the equipment.

[0073] For example, when processing mud with different sand contents, the sand particles can be effectively discharged, thereby reducing the situation where the sand particles block the sand outlet 207 and affect the work efficiency.

[0074] In terms of technical effects, the adaptability and stability of the sand outlet 207 for sand discharge are significantly improved, and the overall performance of the vibrating screen assembly 2 is improved. Overall working principle: Through the action of the second elastic member 219 and the sand on the shrinking slider 217, the size of the shrinking channel 218 is automatically adjusted to adapt to different sand discharge conditions. Overall technical effect: By adding the shrinking slider 217 and the second elastic member 219, the sand discharge function of the vibrating screen assembly 2 is further optimized, and the working efficiency and reliability of the drilling fluid reserve recovery mud station are improved.

[0075] In some examples, such as Fig. 9 As shown, the inner wall of the sand throwing outlet 207 also has a plurality of arc-shaped grooves 220, and the vibrating screen assembly 2 also includes a swinging necking piece 221, the upper end of which swings on the necking slider 217, and the lower end is slidably arranged in the arc-shaped groove 220; the third elastic piece 222 acts on the swinging necking piece 221, providing a force for the swinging necking piece 221 to swing away from the inner wall of the sand throwing outlet 207.

[0076] In the present drilling fluid reserve recovery mud station: the inner wall of the sand throwing outlet 207 also has a plurality of arc-shaped grooves 220. The vibrating screen assembly 2 also includes a swinging necking piece 221 and a third elastic piece 222. The upper end of the swinging necking piece 221 is swingably connected to the necking slider 217, and the lower end is slidably arranged in the arc-shaped groove 220. The third elastic piece 222 acts on the swinging necking piece 221 to provide a force for the swinging necking piece 221 to swing away from the inside of the sand throwing outlet 207. In actual operation, for example, when sand is discharged from the sand throwing outlet 207, if the discharge amount of sand is small or the pressure is low, the elastic force of the third elastic piece 222 makes the swinging necking piece 221 away from the inside of the sand throwing outlet 207, so that the sand throwing outlet 207 is relatively large, which is conducive to the smooth discharge of sand. When the amount of sand discharged is large or the pressure is high, the force of the sand on the swing necking piece 221 overcomes the elastic force of the third elastic piece 222, causing the swing necking piece 221 to swing toward the inside of the sand throwing outlet 207, playing a certain flow limiting role, and avoiding blockage or other problems caused by excessive sand discharge.

[0077] The advantages of this design are: first, the effective size of the sand throwing outlet 207 can be further adjusted according to the actual situation of sand discharge, thereby improving the stability and efficiency of sand discharge. Second, it cooperates with the shrinking slider 217 to enhance 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.

[0078] For example, when processing mud with large changes in sand content, it can better adapt to and ensure smooth and stable sand discharge.

[0079] In terms of technical effects, the sand outlet 207 has significantly improved its ability to adjust and adapt to the discharge of sand particles, and optimized the working performance of the vibrating screen assembly 2. Overall working principle: Through the action of the third elastic member 222 and the sand particles on the swinging necking member 221, the effective size of the sand outlet 207 is automatically adjusted to adapt to different sand discharge conditions. Overall technical effect: By adding the swinging necking 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 recovery mud station are improved.

[0080] In some examples, such as Fig. 9 As shown, the end of the shrinking slider 217 has a smooth guide spherical surface 223.

[0081] In the present drilling fluid reserve recovery mud station: the end of the shrinking slider 217 has a smooth guide spherical surface 223. In actual work, when sand grains pass through the sand throwing outlet 207, the smooth guide spherical surface 223 at the end of the shrinking slider 217 can play the following roles: first, it reduces the jamming and accumulation of sand grains at the end of the shrinking slider 217, so that the sand grains can pass through the sand throwing outlet 207 more smoothly, thereby improving the sand discharge efficiency. Second, it reduces the wear of the shrinking slider 217 by sand grains, thereby extending the service life of the shrinking slider 217.

[0082] For example, when processing a large amount of hard sand, the smooth guide spherical surface 223 can effectively avoid sand blockage and excessive wear on the shrinking slider 217.

[0083] The advantages of this design are: first, it optimizes the sand discharge process and reduces the possibility of failure. Second, it improves the durability of the tapered slider 217 and reduces maintenance costs. In terms of technical effects, the smoothness of sand discharge from the sand-throwing outlet 207 and the stability of the equipment are significantly improved. Overall working principle: With the help of the smooth guide spherical surface 223 at the end of the tapered slider 217, the sand can be discharged from the sand-throwing outlet 207 more efficiently and stably. Overall technical effect: By setting a smooth guide spherical surface 223 at the end of the tapered 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 recovery mud station are improved.

[0084] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, which should be included in 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 slurry inlet (301), a first slurry outlet (302) and a first sand outlet (303), the first cavity (101) leading to the first slurry inlet (301), and the first slurry outlet (302) leading to the second cavity (102).

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 the rupture piece (911) being spike-shaped and arranged 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) 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 vibration sand outlet (226); A suction pipe (203), the suction pipe (203) extends into the first cavity (101), and the suction pipe (203) has a plurality of diversion ports (204); A spiral sand throwing member (205), wherein the spiral sand throwing member (205) is in plurality and has a spiral sand throwing chamber (206), wherein the bottom of the spiral sand throwing chamber (206) has a sand throwing outlet (207), and one side of the upper portion is in communication with the diversion port (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. A drilling fluid reserve and recovery mud station according to claim 6, characterized in that: 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) acts on the shrinking slider (217) to provide a force for the shrinking slider (217) to slide toward the middle of the shrinking channel (218), thereby reducing the size of the shrinking channel (218).

9. A drilling fluid reserve and recovery mud station according to claim 8, characterized in that: 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).

10. A drilling fluid reserve and recovery mud station according to claim 9, characterized in that: The end of the shrinking slider (217) has a smooth guiding spherical surface (223).

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