Drilling mud tank convenient to clean

Abstract

The utility model discloses a well drilling mud tank convenient to clean, which belongs to the technical field of well drilling, a flushing pipeline in a cleaning device is longitudinally arranged relative to an inner cavity of the mud tank, in addition, the flushing pipeline can reciprocate in the inner cavity of the mud tank under the action of external force through the matching of a track and a moving mechanism, and the flushing pipeline is convenient to clean when in use. The inner cavity of the mud tank is divided into a plurality of longitudinal sections in the width direction and / or the length direction of the mud tank by the flushing pipeline, each longitudinal section can be flushed once or multiple times in the moving process of the flushing pipeline, effective and thorough dead-corner-free flushing of the inner cavity of the mud tank is achieved, and after use, the flushing pipeline is moved to one end of the mud tank. Normal use of the stirrer in the tank is not influenced or interfered; therefore, the cleaning device is simple in structure and flexible and convenient to use, large-area cleaning of the interior of the mud tank can be achieved, the cleaning effect is effectively improved, and meanwhile the occupancy rate of the flushing pipeline on the space in the tank is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling, and in particular relates to a drilling mud tank which is easy to clean. Background Art

[0002] Drilling mud tanks have multiple functions in drilling operations, including mud storage, mud mixing, mud processing and mud circulation. At present, due to the influence of mud properties and the length of time the mud stays in the tank, mud still remains on the tank wall and bottom after the mud is discharged. If it is not cleaned for a long time, it is easy to form lumps, which will affect the volume of the tank.

[0003] The existing method of cleaning residual mud by adding a cleaning pipeline in the mud tank is to perform cleaning. For example, according to the utility model patent with the authorization announcement number CN201003386Y, a cleaning device for a drilling mud tank is disclosed. The main scheme is to horizontally set a closed ring cleaning pipe at the lower part of the mud tank, and the bottom surface and the surrounding walls of the mud tank are cleaned through the ring cleaning pipe. Although this scheme realizes the cleaning of the inner wall of the mud tank, it also has the following shortcomings: First, the ring cleaning pipeline occupies a certain space in the tank. Before wiring, it is necessary to consider that the layout of the cleaning pipeline does not affect the normal use of the agitator in the tank, resulting in high requirements for the layout of the flushing pipeline; second, in order to avoid the annular cleaning pipe from interfering with the agitator in the tank, the annular cleaning pipe needs to be set at a position close to the bottom surface of the mud tank. In this way, the residual mud near the upper end of the inner cavity of the mud tank cannot be effectively flushed, which is easy to form a dead angle.

[0004] Based on the above analysis, the present application designs a drilling mud tank that is easy to clean on the basis of the prior art. Utility Model Content

[0005] The utility model aims to provide a drilling mud tank which is easy to clean, so as to solve the problems of poor cleaning effect and high requirements for the layout of cleaning pipelines in the existing mud tank cleaning devices.

[0006] The utility model provides a drilling mud tank that is easy to clean, comprising a mud tank, wherein the mud tank is provided with a track extending along its axial direction, and at the same time, a longitudinally arranged flushing pipeline is provided in the inner cavity of the mud tank, and a moving mechanism and at least one docking pipeline extending to the outside of the mud tank are provided on the flushing pipeline, and the moving mechanism cooperates with the track to drive the flushing pipeline to move relative to the mud tank, and the docking pipeline is provided with a liquid inlet interface for connecting a cleaning liquid delivery pipeline and a power interface for connecting an external driving mechanism.

[0007] As a preferred solution of the present application: the flushing pipeline includes a first flushing pipeline and a second flushing pipeline which are interconnected, the first flushing pipeline is in a semicircular shape and is arranged near the bottom of the mud tank, the second flushing pipeline includes two lines which are respectively connected to the two ends of the first flushing pipeline and are near the two side walls of the mud tank; the first flushing pipeline and the second flushing pipeline constitute a semicircular flushing pipeline which can move axially relative to the mud tank under the cooperation of the moving mechanism and the track.

[0008] As a preferred solution of the present application: the ends of the two second flushing pipelines are extended to the outside of the mud tank to form the docking pipeline, and the liquid inlet interface is arranged on the docking pipeline of one of the second flushing pipelines.

[0009] As a preferred solution of the present application: the track is arranged on both sides of the upper end surface of the mud tank, and at the same time, the moving mechanism is arranged at the position of the two second flushing pipelines close to the docking pipe. Through the cooperation of the moving mechanism and the track, the flushing pipeline can be installed in the inner cavity of the mud tank.

[0010] As a preferred solution of the present application: the flushing pipeline further includes a third flushing pipeline, which is arranged near the two ends of the mud tank and can move radially relative to the mud tank under the cooperation of the moving mechanism and the track.

[0011] As a preferred solution of the present application: the external driving mechanism includes a manual push rod, which can be docked with the power interface on the docking pipeline and then manually push the flushing pipeline to reciprocate in the inner cavity of the mud tank.

[0012] As a preferred solution of the present application: the flushing nozzle is at least one of a nozzle or an orifice.

[0013] As a preferred solution of the present application: when the flushing nozzle is an orifice, the orifice has an aperture of 1-5 mm.

[0014] As a preferred solution of the present application: the moving mechanism is a roller or a slider.

[0015] Compared with the prior art, the drilling mud tank that is easy to clean in the present application has the following beneficial effects:

[0016] The flushing pipeline in the cleaning device of the present application is arranged longitudinally relative to the inner cavity of the mud tank, and the flushing pipeline is a semicircular ring structure and / or a rod-shaped structure. The use of this structure can make it possible to have a flushing pipeline on the bottom of the mud tank and the side wall of any height. In addition, the flushing pipeline can reciprocate axially in the inner cavity of the mud tank under the action of external force and through the cooperation of the track and the moving mechanism. When in use, the flushing pipeline divides the inner cavity of the mud tank into multiple longitudinal sections along its width direction. During the movement of the flushing pipeline, it can flush each longitudinal section once or multiple times, thereby achieving The inner cavity of the mud tank can be effectively and thoroughly flushed without dead angles. Moreover, after use, the flushing pipeline can be moved to one end of the mud tank without affecting or interfering with the normal use of the agitator in the tank. It can be seen that the cleaning device of the present application is not only simple in structure, but also flexible and convenient to use, and can achieve large-area cleaning in the mud tank, rather than being limited to the bottom, thereby effectively improving the cleaning effect. At the same time, it also reduces the occupancy rate of the flushing pipeline in the tank space, ensuring the normal use of the mud tank, and solving the problems of poor cleaning effect and high requirements for the layout of the cleaning pipeline in the existing mud tank cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the main cross-sectional structure of a drilling mud tank that is easy to clean provided in an embodiment of the utility model.

[0018] Figure 2 The embodiment of the utility model provides Figure 1 A local enlarged schematic diagram of point A in the middle.

[0019] Figure 3 The embodiment of the utility model provides Figure 1 A local enlarged schematic diagram of point B in the middle.

[0020] Figure 4 The embodiment of the utility model provides Figure 1 A partial enlarged schematic diagram of point C in the middle.

[0021] Figure 5 A schematic diagram of the main cross-sectional structure of a drilling mud tank when the flushing pipeline provided in an embodiment of the utility model includes a third flushing pipeline.

[0022] Reference numerals

[0023] Mud tank 1, track 2, flushing pipeline 3, first flushing pipeline 31, second flushing pipeline 32, high-pressure nozzle 33, third flushing pipeline 34, docking pipeline 4, liquid inlet interface 41, power interface 42, manual push rod 5, moving mechanism. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with specific implementations and with reference to the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope of the present invention and its application.

[0025] The present embodiment provides a drilling mud tank that is easy to clean, including a mud tank 1, on which a track 2 extending along its axial direction, i.e., the length direction, is provided. The track 2 is an existing conventional planar guide rail. At the same time, a longitudinally arranged flushing pipeline 3 is provided in the inner cavity of the mud tank 1. The flushing pipeline 3 specifically includes a first flushing pipeline 31 and a second flushing pipeline 32 that are interconnected. Figure 1-2 As shown, the first flushing pipeline 31 is semicircular and is arranged near the bottom of the mud tank 1. The second flushing pipeline 32 includes two second flushing pipelines 32, which are respectively connected to the two ends of the first flushing pipeline 31 and close to the two side walls of the mud tank 1. The first flushing pipeline 31 and the second flushing pipeline 32 constitute a semicircular flushing pipeline 3, which can move axially relative to the mud tank 1 under the cooperation of the moving mechanism and the track 2. It can be understood that the curvatures of the first flushing pipeline 31 and the second flushing pipeline 32 should correspond to the structure of the inner cavity of the mud tank 1.

[0026] In this embodiment, the structure of the semicircular flushing pipeline 3 preferably corresponds to the longitudinal cross-sectional structure in the width direction of the mud tank 1. Compared with the horizontal layout, the longitudinal, i.e. vertical layout of the flushing pipeline 3 can reduce the space occupied by the pipeline in the mud tank 1 without considering the interference of the layout position on the agitator in the tank. On the other hand, it can reduce the amount of consumables of the flushing pipeline 3. Moreover, the vertical layout of the semicircular flushing pipeline 3 can ensure that the bottom of the inner cavity of the mud tank 1 and the side wall position at any height are effectively flushed to avoid dead corners.

[0027] The flushing pipeline 3 is provided with a flushing nozzle, a moving mechanism and at least one docking pipeline 4 extending to the outside of the mud tank 1. The flushing nozzles include multiple ones, and the multiple flushing nozzles are arranged at intervals on the flushing pipeline and face the inner wall of the mud tank (the inner wall includes the bottom and the side wall). The flushing nozzle can be at least one of a nozzle or an orifice. The present embodiment is preferably a nozzle, and is a high-pressure nozzle 33. It can be understood that when the flushing nozzle is an orifice, the aperture of the orifice should meet the flushing needs. The present embodiment preferably but not limited to the aperture of the orifice is 1-5mm; the moving mechanism and the track 2 are rollingly matched, and the flushing pipeline 3 can be set up in the mud tank 1 through the moving mechanism and the track 2, and the flushing pipeline 3 can be driven to move relative to the axial direction of the mud tank 1, that is, the length direction. The longitudinal setting of the flushing pipeline 3 is equivalent to dividing the inner cavity of the mud tank 1 into multiple longitudinal sections along its length direction. During the movement of the flushing pipeline 3, it can flush each longitudinal section once or multiple times, thereby achieving effective and thorough non-irritation of the inner cavity of the mud tank 1. Flushing of dead corners; the docking pipe 4 is provided with a liquid inlet interface 41 for connecting to a cleaning liquid delivery pipeline and a power interface 42 for connecting to an external driving mechanism. It can be understood that a high-pressure pump should be provided on the cleaning liquid delivery pipeline docked with the liquid inlet interface 41, through which the cleaning liquid is delivered to the flushing pipeline 3 at a certain pressure, and sprayed out through the high-pressure nozzle 33 on the flushing pipeline 3 to achieve efficient cleaning of the bottom and side walls of the mud tank 1; the external driving mechanism is used to provide power to the flushing pipeline 3 so that it can reciprocate in the mud tank 1 with the cooperation of the moving mechanism and the track 2. In this embodiment, the external driving mechanism is preferably a manual push rod 5, which should be provided with a joint that is detachably docked with the power interface 42. The flushing pipeline 3 can be driven to move by the manual push rod 5. In other embodiments of the present application, without considering the cost, the external driving mechanism can also select a driving motor, which drives the roller to rotate and then drives the flushing pipeline 3 to move.

[0028] In this embodiment, the specific structures of the liquid inlet 42 and the power interface 42 are selected according to actual needs. In this embodiment, the liquid inlet interface 42 is preferably a socket interface with a boss, and the power interface 42 is a threaded interface with a thread, such as Figure 3-4 shown.

[0029] In this embodiment, the moving mechanism is a roller 6 or a slider. In order to save more effort, the moving mechanism is preferably a roller 6, that is, the flushing pipeline 3 is driven to move by the rolling cooperation between the roller 6 and the track 2. Of course, in other embodiments of the present application, the flushing pipeline 3 and the track 2 can adopt a sliding cooperation in addition to rolling cooperation. Specifically, the roller 6 can be replaced by a slider, and the flushing pipeline 3 is driven to move by the sliding cooperation between the slider and the track 2.

[0030] The ends of the two second flushing pipelines 32 extend to the outside of the mud tank 1 to form a connecting pipe 4, and a liquid inlet interface 41 is arranged on the connecting pipe 4 of one of the second flushing pipelines 32. Since the first flushing pipeline 31 and the second flushing pipeline 32 are connected, the liquid inlet interface 41 is arranged on the connecting pipe 4 of one of the second flushing pipelines 32 to meet the actual flushing needs. Of course, in order to ensure that the two second flushing pipelines 32 have equal flushing pressures, it is preferred to respectively arrange liquid inlet interfaces 41 on the connecting pipes 4 of the two second flushing pipelines 32.

[0031] The track 2 is arranged on both sides of the upper end surface of the mud tank 1. At the same time, the moving mechanism is arranged at the position of the two second flushing pipelines 32 close to the docking pipeline 4. The flushing pipeline 3 can be installed in the inner cavity of the mud tank 1 through the cooperation of the moving mechanism and the track 2. That is, in this embodiment, the track 2 and the moving mechanism are arranged at the upper end of the mud tank 1, and the flushing pipeline 3 is installed in the inner cavity of the mud tank 1 in a suspended manner. This can reduce the corrosion and blockage of the track 2 and the moving mechanism by the mud, ensure that the two can cooperate normally, and also improve the service life. Of course, in other embodiments of the present application, the track 2 and the moving mechanism can also be arranged at the bottom position of the mud tank 2, and the flushing pipeline 3 can be supported by the cooperation of the track 2 and the moving mechanism.

[0032] The use principle of this embodiment includes:

[0033] When it is necessary to flush the mud tank 1, first connect the cleaning liquid delivery pipeline and the manual push rod 5 to the corresponding interface positions respectively, and then start the cleaning liquid delivery pipeline to provide high-pressure cleaning liquid to the flushing pipeline 3 to flush the inner cavity of the mud tank 1. At the same time, the staff can stand on the upper end surface of the mud tank 1 to push the manual push rod 5 and then drive the flushing pipeline 3 to move until the cleaning is completed. The speed of movement of the flushing pipeline 3 can be selected according to actual needs; after the flushing is completed, the cleaning liquid delivery pipeline and the manual push rod 5 are removed from the corresponding interface positions, and the flushing pipeline 3 is moved to one end of the mud tank 1 for storage to avoid affecting the normal use of the agitator.

[0034] In summary, it can be seen that the cleaning device of this embodiment is not only simple in structure, flexible and convenient to use, but also can achieve large-area cleaning in the mud tank 1, rather than being limited to the bottom, thereby effectively improving the cleaning effect. At the same time, it also reduces the occupancy rate of the flushing pipeline 3 to the space in the tank, thereby ensuring the normal use of the mud tank 1.

[0035] As a preferred embodiment of the present application, in order to achieve more comprehensive and thorough cleaning, the flushing pipeline 3 further includes a third flushing pipeline 34, such as Figure 5As shown, the third flushing pipeline 34 is a rod-shaped structure and includes two groups, which are longitudinally arranged near the two ends of the mud tank 1, and can move relative to the mud tank 1 in the radial direction, that is, the width direction, with the cooperation of the moving mechanism and the track 2. That is, the third flushing pipeline 34 is independent of the flushing pipeline 3 composed of the first flushing pipeline 31 and the second flushing pipeline 32. The inner walls of the two axial ends of the mud tank 1 can be cleaned through the third flushing pipeline 34.

[0036] The track 2 is arranged at two ends of the upper end surface of the mud tank 1 and is arranged along the radial direction of the mud tank 1, that is, the width direction. The roller 6 on the third flushing pipeline 34 can move relative to the track 2 to achieve scanning cleaning of the end wall of the mud tank 1.

[0037] The upper end of the third flushing pipeline 34 also extends to the outside of the mud tank 1 to form a docking pipeline 4. At the same time, a liquid inlet interface 41 for connecting the cleaning liquid delivery pipeline and a power interface 42 for connecting the external driving mechanism are provided on the docking pipeline 4. The connection method between the liquid inlet interface 41 and the cleaning liquid delivery pipeline, and the connection method between the power interface 42 and the manual push rod 5 are the same as those in the above-mentioned embodiment, and will not be repeated here in this embodiment.

[0038] When in use, the third flushing pipeline 34 can be used alone to flush the inner wall of the end of the mud tank 1, or it can cooperate with the semi-circular flushing pipeline formed by the first flushing pipeline 31 and the second flushing pipeline 32 to thoroughly clean the inside of the mud tank 1 without dead corners. The specific selection can be made according to needs.

[0039] In the description of the present invention, it should be understood that terms such as "upper end", "bottom", "up", "lower", "outside", "inside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or mechanism referred to must have a specific direction, be constructed or operate in a specific direction, and therefore cannot be understood as a limitation on the present invention; at the same time, in the description of the present invention, the meaning of "at least" includes one, two and more than two.

[0040] In the present utility model, unless otherwise clearly specified and limited, the terms "fixed", "connected", "installed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a relatively rotatable connection, or an integral connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0041] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several improvements can be made without departing from the premise of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A drilling mud tank that is easy to clean, comprising a mud tank (1), characterized in that: The mud tank (1) is provided with a track (2) extending along its axial direction and / or radial direction. At the same time, a longitudinally arranged flushing pipeline (3) is provided in the inner cavity of the mud tank (1). The flushing pipeline (3) is provided with a flushing nozzle, a moving mechanism and at least one docking pipeline (4) extending to the outside of the mud tank (1). The flushing nozzles include a plurality of flushing nozzles, which are arranged on the flushing pipeline (3) in an interval manner and face the inner wall of the mud tank (1); the moving mechanism cooperates with the track (2) to drive the flushing pipeline (3) to move relative to the mud tank (1); the docking pipeline (4) is provided with a liquid inlet interface (41) for connecting a cleaning liquid delivery pipeline and a power interface (42) for connecting an external driving mechanism.

2. The easy-to-clean drilling mud tank according to claim 1, characterized in that: The flushing pipeline (3) comprises a first flushing pipeline (31) and a second flushing pipeline (32) which are interconnected. The first flushing pipeline (31) is semicircular in shape and is arranged near the bottom of the mud tank (1). The second flushing pipeline (32) comprises two flushing pipelines which are respectively connected to the two ends of the first flushing pipeline (31) and are near the two side walls of the mud tank (1). The first flushing pipeline (31) and the second flushing pipeline (32) constitute a semicircular flushing pipeline (3). The flushing pipeline (3) can move axially relative to the mud tank (1) when the moving mechanism cooperates with the track (2).

3. The easy-to-clean drilling mud tank according to claim 2, characterized in that: The ends of the two second flushing pipelines (32) extend to the outside of the mud tank (1) to form the connecting pipe (4), and the liquid inlet interface (41) is arranged on the connecting pipe (4) of one of the second flushing pipelines (32).

4. The easy-to-clean drilling mud tank according to claim 2, characterized in that: The track (2) is arranged on both sides of the upper end surface of the mud tank (1), and at the same time, the moving mechanism is arranged at a position where the two second flushing pipelines (32) are close to the docking pipeline (4). Through the cooperation of the moving mechanism and the track (2), the flushing pipeline (3) can be installed in the inner cavity of the mud tank (1).

5. The easy-to-clean drilling mud tank according to claim 1, characterized in that: The flushing pipeline (3) further comprises a third flushing pipeline (34), which is a rod-shaped structure, is arranged near two ends of the mud tank (1), and can move radially relative to the mud tank (1) under the cooperation of the moving mechanism and the track (2).

6. The easy-to-clean drilling mud tank according to claim 1, characterized in that: The external driving mechanism comprises a manual push rod (5), which can dock with a power interface (42) on the docking pipeline (4) and thereby manually push the flushing pipeline (3) to reciprocate in the inner cavity of the mud tank (1).

7. The easy-to-clean drilling mud tank according to claim 1, characterized in that: The flushing nozzle is at least one of a nozzle or an orifice.

8. The easy-to-clean drilling mud tank according to claim 7, characterized in that: When the flushing nozzle is an orifice, the orifice has a diameter of 1-5 mm.

9. The easy-to-clean drilling mud tank according to claim 1, characterized in that: The moving mechanism is a roller (6) or a slider.

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