Salvage device

Abstract

The utility model provides a salvaging device. The salvaging device comprises a body; at least part of the filtering structure is arranged on the body in a sleeving mode, the filtering structure and at least part of the body are arranged in a spaced mode, an inflow channel, a communicating channel and a filtering channel which are sequentially communicated are arranged between the filtering structure and the body, and the inflow channel and the filtering channel are arranged on the side portion of the body in the circumferential direction of the body in a spaced mode; the communicating channel is located at the ends of the inflow channel and the filtering channel; the fishing device is provided with an inflow port communicated with the inflow channel and a filtering port communicated with the filtering channel; the inflow port is formed in the position, corresponding to the inflow channel, of the filtering structure or between at least part of the end of the filtering structure and the body; the filtering opening is formed in the position, corresponding to the filtering channel, of the filtering structure or in the filtering channel. According to the technical scheme, the technical problem that in the prior art, the scrap fishing effect of a fishing device is poor can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of salvaging equipment in the petroleum industry, in particular to a salvaging device. Background Art

[0002] At present, a large amount of debris is generated during the drilling process in the oil industry, and the debris needs to be salvaged and cleaned during the operation. The structural principle of the existing debris salvage device is that when the drilling fluid circulates, the gap between the barrel and the casing wall is small, and the liquid flow rate is high. After the liquid flows through the barrel, the diameter of the main body core shaft is small and the gap with the casing wall increases. At this time, the liquid flow rate decreases, and the debris settles into the barrel due to its own weight and is carried out of the wellbore with the drill string.

[0003] However, since the distance between the smaller diameter parts of the core shaft is too short, most of the debris will continue to circulate upward with the liquid and cannot be effectively settled in the salvage device, making the salvage effect of the salvage device poor. This will lead to excessive debris in the wellbore, resulting in problems such as drill sticking, wear of milling tools, and reduced milling efficiency, which will seriously affect the efficiency of drilling operations. Utility Model Content

[0004] The main purpose of the utility model is to provide a salvaging device to solve the technical problem that the salvaging device in the prior art has a poor debris salvaging effect.

[0005] In order to achieve the above object, the utility model provides a salvage device, comprising:

[0006] ontology;

[0007] A filter structure, at least part of which is sleeved on the body and spaced from at least part of the body, an inflow channel, a communication channel and a filter channel which are sequentially connected are provided between the filter structure and the body, the inflow channel and the filter channel are separated and arranged on the side of the body along the circumferential direction of the body, and the communication channel is located at the ends of the inflow channel and the filter channel;

[0008] Among them, the salvage device has an inlet connected to the inflow channel and a filter port connected to the filter channel; the inlet is arranged at a position of the filter structure corresponding to the inflow channel or between at least part of the end of the filter structure and the body; the filter port is arranged at a position of the filter structure corresponding to the filter channel or in the filter channel.

[0009] Further, the filter structure is a cylinder, and a filter port is arranged on the side wall of the cylinder; or, the filter structure includes a cylinder and a filter element, the cylinder forms at least a part of the filter structure, the filter element is arranged between the cylinder and the body, and the filter port is arranged on the filter element.

[0010] Further, the filtering structure is a cylinder, and a plurality of filter ports are arranged on the side wall of the cylinder; wherein the plurality of filter ports are arranged at intervals on the side wall of the cylinder; and / or, the plurality of filter ports are arranged at intervals on the cylinder along the circumference of the cylinder to form a filter portion, and the cylinder is provided with a plurality of filter portions, and the plurality of filter portions are arranged at intervals along the length direction of the cylinder; and / or, the filter port is a strip-shaped port, and the filter port extends along the extension direction of the cylinder.

[0011] Furthermore, at least part of the filtering structure is a cylinder; the salvaging device also includes a partition, which is arranged between the main body and the cylinder, one side of the partition is connected or abutted with the main body, and the other side of the partition is connected or abutted with the inner wall of the cylinder, and the end of the cylinder away from the inlet protrudes from the partition to form a connecting channel; wherein there are two partitions, the two partitions are arranged at intervals along the circumferential direction of the main body, the two partitions and one side of the cylinder form an inflow channel, and the two partitions and the other side of the cylinder form a filtering channel; or, the outer wall of the main body is in contact with at least part of the inner wall of the cylinder to form a contact portion, the partition is arranged at intervals with the contact portion, the partition and one side of the cylinder form an inflow channel, and the partition and the other side of the cylinder form a filtering channel.

[0012] Furthermore, the salvage device further comprises:

[0013] A blocking member is arranged at an end of the cylinder away from the inlet;

[0014] The blocking member comprises a blocking portion and a connecting portion which are connected to each other. The blocking portion blocks the end of the cylinder and is located at the gap between the cylinder and the main body. The connecting portion is inserted between the cylinder and the main body.

[0015] Furthermore, the salvaging device further comprises a locking member, which passes through the cylinder and the connecting portion and is locked and connected to the main body; and / or,

[0016] The blocking piece includes a first splicing block and a second splicing block that are spliced ​​together, the blocking portion includes a first splicing block and a second splicing block that are spliced ​​together, the connecting portion includes a first connecting block and a first connecting block that are spliced ​​together, the first splicing block includes a first blocking block and a first connecting block that are connected to each other, the second splicing block includes a second blocking block and a second connecting block that are connected to each other, the first splicing block has a first splicing surface, and the second sealing block has a second splicing surface that is adapted to the first splicing surface.

[0017] Further, a side of the connecting portion away from the blocking portion has an arc-shaped guide surface; and / or,

[0018] The blocking member is provided with an overflow hole, and the overflow hole penetrates the blocking portion and the connecting portion along the arrangement direction of the blocking portion and the connecting portion; and / or,

[0019] The blocking piece is an annular structure.

[0020] Furthermore, a cleaning port is provided on one side of the filter structure corresponding to the filter channel, and the cleaning port is spaced apart from the filter port; the salvaging device further includes:

[0021] A movable door, which is detachable or movably arranged at the cleaning opening;

[0022] The movable door has a closed position and an open position; when the movable door is in the closed position, the movable door blocks the cleaning port; when the movable door is in the open position, the movable door avoids the cleaning port.

[0023] Further, the cleaning port is arranged at the bottom of the filter structure; and / or,

[0024] The cleaning port is arranged at one end of the filter structure away from the communicating channel.

[0025] Furthermore, a first positioning portion is provided at the first end of the filter structure, and a second positioning portion matched with the first positioning portion is provided on the body to position the filter structure;

[0026] Wherein, when the inlet is arranged between at least part of the end of the filtering structure and the body, the second positioning portion is provided with an avoidance notch, the avoidance notch is arranged through both ends of the second positioning portion, and at least part of the avoidance notch is arranged opposite to the inlet; and / or,

[0027] The main body comprises a main body section and a necking section which are connected to each other. The second positioning portion is arranged at one end of the main body section close to the necking section. The cross-sectional area of ​​the necking section is smaller than that of the second positioning portion.

[0028] By applying the technical solution of the utility model, when the liquid carrying debris flows from the inlet into the space formed by the filter structure and the body, and flows through the inlet channel, the connecting channel and the filter channel in sequence, when the liquid carrying debris flows through the filter port, the filter port filters it, and the debris remains in the filter channel, and the liquid flows out of the filter structure from the filter port. Since the inlet channel and the filter channel are separated, the filter channel can collect the debris filtered by the filter port, and the debris will remain in the filter channel, and will not return to the salvage device with the liquid, thereby improving the salvage effect of the salvage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0030] Figure 1 A front view of a salvaging device provided according to an embodiment of the utility model at a viewing angle is shown;

[0031] Figure 2A cross-sectional view of a salvaging device provided according to an embodiment of the utility model at another viewing angle is shown;

[0032] Figure 3 A perspective view of a salvaging device provided according to an embodiment of the utility model at another viewing angle is shown;

[0033] Figure 4 A schematic diagram showing a main body of a salvaging device provided according to an embodiment of the utility model at a viewing angle is shown;

[0034] Figure 5 A schematic diagram showing the main body of the salvaging device provided in an embodiment of the utility model at another viewing angle is shown;

[0035] Figure 6 A schematic diagram showing the main body of the salvaging device provided in an embodiment of the utility model at another viewing angle is shown;

[0036] Figure 7 A schematic diagram of a filtering structure of a salvage device provided according to an embodiment of the utility model at a viewing angle is shown;

[0037] Figure 8 A schematic diagram showing a filtering structure of a salvaging device provided in an embodiment of the utility model from another viewing angle is shown;

[0038] Fig. 9 A schematic structural diagram of a blocking member of a salvage device provided according to an embodiment of the utility model is shown;

[0039] Fig.10 A schematic diagram of a blocking member of a salvage device provided in an embodiment of the utility model at a viewing angle;

[0040] Fig.11 The salvage device provided according to the embodiment of the utility model is shown in Figure 1 Cross-section view at the middle AA position;

[0041] Fig.12 The salvage device provided according to the embodiment of the utility model is shown in Figure 1 Cross-section view of the middle BB position.

[0042] The above drawings include the following reference numerals:

[0043] 10. body; 11. second positioning portion; 111. avoidance notch; 12. main body section; 13. necking section; 14. third mounting hole; 15. mounting portion; 151. second screw hole;

[0044] 20. Filter structure; 21. Cleaning port; 22. First positioning portion; 23. Second mounting hole;

[0045] 31. Inflow channel; 32. Communication channel; 33. Filter channel; 34. Inflow port; 35. Filter port; 351. Filter unit;

[0046] 40. Partition;

[0047] 50. Blocking member; 51. Blocking portion; 511. First blocking block; 512. Second blocking block; 52. Connecting portion; 521. First connecting block; 522. Second connecting block; 53. Arc-shaped flow guide surface; 54. Overflow hole; 55. First mounting hole;

[0048] 60. locking member; 70. movable door; 71. first screw hole;

[0049] 200. Casing. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0051] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0052] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0053] Please refer to Figures 1 to 12 The embodiment of the utility model provides a salvage device, which includes a body 10 and a filter structure 20. At least part of the filter structure 20 is sleeved on the body 10 and spaced from at least part of the body 10. There are an inflow channel 31, a communication channel 32 and a filter channel 33 that are sequentially connected between the filter structure 20 and the body 10. The inflow channel 31 and the filter channel 33 are separated and arranged on the side of the body 10 along the circumference of the body 10, and the communication channel 32 is located at the ends of the inflow channel 31 and the filter channel 33. Among them, the salvage device has an inflow port 34 connected to the inflow channel 31 and a filter port 35 connected to the filter channel 33. The inflow port 34 is arranged at a position of the filter structure 20 corresponding to the inflow channel 31 or between at least part of the end of the filter structure 20 and the body 10, and the filter port 35 is arranged at a position of the filter structure 20 corresponding to the filter channel 33 or in the filter channel 33.

[0054] With the salvaging device provided in this embodiment, the liquid carrying debris flows from the inlet 34 into the space formed between the filter structure 20 and the body 10, and flows through the inlet channel 31, the connecting channel 32 and the filter channel 33 in sequence. When the liquid carrying debris flows through the filter port 35, the filter port 35 filters it, and the debris remains in the filter channel 33, and the liquid flows out of the filter structure 20 from the filter port 35. Since the inlet channel 31 and the filter channel 33 are separately arranged on the side of the body 10, the filter channel 33 can collect the debris filtered by the filter port 35, and the debris will remain in the filter channel 33, and will not return to the salvaging device with the liquid, thereby improving the salvaging effect of the salvaging device.

[0055] Specifically, the fishing device in this embodiment is used for the casing 200 of a drilling well, and after a cleaning fluid is injected into the casing 200, the cleaning fluid carries debris in the casing 200 and flows from the inlet 34 into the space formed between the filter structure 20 and the body 10. The liquid may be a cleaning fluid.

[0056] It should be noted that the filter port 35 can be adaptively adjusted according to the size of the debris to be salvaged, as long as the filter port 35 can filter a large amount of debris and prevent a large amount of debris from being discharged through the filter port 35. Specifically, the filter port 35 can be in a circular structure, a square structure, a strip structure, or the like.

[0057] Specifically, one end of the filter channel 33 away from the communication channel 32 may be closed, so that the liquid can only flow out from the filter port 35 .

[0058] In this embodiment, the filter structure 20 is a cylinder, and a filter port 35 is provided on the side wall of the cylinder. In this way, the filter port 35 is provided on the side wall of the cylinder corresponding to the filter channel 33, avoiding the situation of occupying the accommodation space of the filter channel 33, reducing the resistance to the liquid in the filter channel 33, thereby ensuring the filtering effect of the filter port 35 while ensuring the collection capacity of the filter channel 33 and the smooth flow of the liquid.

[0059] In this embodiment, a plurality of filter ports 35 are arranged on the side wall of the cylinder, and the plurality of filter ports 35 are arranged at intervals on the side wall of the cylinder. In this way, even if some of the filter ports 35 may be clogged, the cleaning liquid can still be filtered, thereby ensuring the effect of filtering debris, and the plurality of filter ports 35 are arranged at intervals, which ensures the structural strength of the cylinder and can also improve the filtering effect.

[0060] In this embodiment, a plurality of filter ports 35 are arranged at intervals along the circumference of the cylinder to form a filter portion 351. The cylinder is provided with a plurality of filter portions 351, and the plurality of filter portions 351 are arranged at intervals along the length direction of the cylinder. In this way, even if an individual filter portion 351 may be clogged, the other filter portions 351 can still filter the cleaning liquid, thereby ensuring the effect of the filter port 35 filtering debris. In addition, the plurality of filter portions 351 are arranged at intervals along the length direction of the cylinder to ensure the structural strength of the cylinder.

[0061] In this embodiment, the filter port 35 is a strip-shaped port, and the filter port 35 extends along the extension direction of the cylinder. In this way, while ensuring the filtering effect, the structure of the filter port 35 can be simplified. Setting the filter port 35 as a strip-shaped port extending along the direction of the cylinder can also reduce the materials required and simplify the production process, thereby reducing the production cost of the salvage device.

[0062] Specifically, when the cylinder is a metal structure, the cylinder can be formed by casting.

[0063] Alternatively, the filter structure 20 includes a barrel and a filter element, the barrel forming at least part of the filter structure 20, the filter element is disposed between the barrel and the body 10, and the filter element is provided with a filter port 35. In this way, the debris in the filter channel can be effectively filtered through the filter port 35 on the filter element.

[0064] Specifically, the filter element is detachably disposed between the cylinder and the main body 10 , so that the filter element can be easily disassembled for cleaning, thereby ensuring the filtering effect of the filter element.

[0065] It should be noted that “the filter element is disposed between the cylinder and the body 10 ” includes the case where the filter element is disposed at the end of the cylinder and the end of the body 10 .

[0066] Specifically, at least part of the filtering structure 20 is a cylinder, and the salvaging device further includes a partition 40. The partition 40 is disposed between the body 10 and the cylinder, one side of the partition 40 is connected or abutted with the body 10, and the other side of the partition 40 is connected or abutted with the inner wall of the cylinder, and one end of the cylinder away from the inlet 34 protrudes from the partition 40 to enclose the communication channel 32. With such a structural arrangement, the structure is simple and it is convenient to form an effective separation of the space between the body 10 and the cylinder.

[0067] Specifically, the outer wall of the main body 10 can contact at least part of the inner wall of the cylinder to form a contact portion, and the partition 40 is arranged at intervals from the contact portion. The partition 40 and one side of the cylinder form an inflow channel 31, and the partition 40 and the other side of the cylinder form a filter channel 33. The outer wall of the main body 10 contacts at least part of the inner wall of the cylinder to form a contact portion. By setting the partition 40 and the contact portion, the cavity between the cylinder and the main body 10 can be divided into the inflow channel 31, the filter channel 33 and the connecting channel 32, thereby realizing the division of different channels. In addition, the two sides of the partition 40 are connected or abutted with the inner walls of the main body 10 and the cylinder, which can support the cylinder, thereby improving the structural stability of the salvage device, and can also facilitate the installation of the cylinder. Specifically, the partition here can be set to one.

[0068] Specifically, there can be two partitions 40, which are arranged at intervals along the peripheral direction of the body 10. The two partitions 40 and one side of the cylinder form an inflow channel 31, and the two partitions 40 and the other side of the cylinder form a filtering channel 33. In this way, the cylinder is supported on the outer wall of the body 10 by the two partitions 40, and the two sides of the partitions 40 are connected or abutted with the body 10 and the inner wall of the cylinder, thereby ensuring the structural strength and structural stability of the salvage device, and facilitating the installation of the cylinder. In addition, by providing two partitions 40, the cavity between the cylinder and the body 10 is divided into the inflow channel 31, the filtering channel 33 and the connecting channel 32, thereby ensuring the salvage effect of the salvage device.

[0069] In this embodiment, the salvage device further includes a plugging member 50, which is arranged at one end of the cylinder away from the inlet 34. The plugging member 50 includes a plugging portion 51 and a connecting portion 52 that are connected to each other. The plugging portion 51 is blocked at the end of the cylinder and located at the gap between the cylinder and the body 10, and the connecting portion 52 is inserted between the cylinder and the body 10. In this way, by blocking the end of the cylinder away from the inlet 34 through the plugging portion 51, that is, blocking the end of the connecting channel 32, it is possible to prevent the cleaning fluid carrying debris from flowing directly out of this position, thereby ensuring that the cleaning fluid can enter the filter channel 33 from the inlet channel 31. In addition, by inserting the connecting portion 52 between the cylinder and the body 10, it is possible to facilitate the positioning of the plugging member 50, so as to facilitate the installation of the plugging member 50.

[0070] Specifically, the outer circumferential surface of the blocking portion 51 is protruding from the outer circumferential surface of the connecting portion 52, and the outer circumferential surface size of the connecting portion 52 is adapted to the connecting passage 32. The outer circumferential surface of the blocking portion 51 may be a first arc surface, and the outer circumferential surface of the connecting portion 52 may be a second arc surface, and the outer diameter corresponding to the first arc surface is greater than the outer diameter corresponding to the second arc surface.

[0071] In this embodiment, the salvaging device further includes a locking member 60, which passes through the cylinder and the connecting portion 52 and is locked and connected to the main body 10. In this way, by providing the locking member 60 to connect the cylinder, the connecting portion 52 and the main body 10, the installation and fixation of the blocking member 50 is achieved. In addition, the locking member 60 can lock the cylinder on the main body 10, thereby also achieving the fixation of the cylinder.

[0072] Specifically, the locking member 60 may be a fixing pin, which is limited by an axial retaining spring to prevent the fixing pin from falling out during operation.

[0073] In this embodiment, the blocking member 50 includes a first splicing block and a second splicing block, the blocking portion 51 includes a first splicing block 511 and a second splicing block 512, the connecting portion 52 includes a first connecting block 521 and a second connecting block 522, the first splicing block includes a first splicing block 511 and a first connecting block 521 connected to each other, the second splicing block includes a second splicing block 512 and a second connecting block 522 connected to each other, the first splicing block has a first splicing surface, and the second splicing block 512 has a second splicing surface adapted to the first splicing surface. In this way, by setting the blocking member 50 as a split structure, the first splicing block and the second splicing block can be inserted between the cylinder and the main body 10 from the side, so as to facilitate the installation of the blocking member 50. In addition, when the blocking member 50 is partially damaged, the damaged split can also be replaced, thereby reducing the cost of replacing accessories.

[0074] Specifically, the first splicing surface and the second splicing surface can both be planes or arc surfaces that fit each other. The blocking member 50 can be an annular structure, and the annular structure includes a first annular block and a second annular block. The first splicing block is a first arc block, and the second splicing block is a second arc block. The blocking portion 51 is a first annular block formed by splicing the first blocking block 511 and the second blocking block 512, and the connecting portion 52 is a second arc block formed by splicing the first connecting block 521 and the second connecting block 522.

[0075] Specifically, there are two locking members 60, and the first connecting block 521 and the second connecting block 522 are both provided with a first mounting hole 55 adapted to the locking member 60, and two second mounting holes 23 are correspondingly provided on the cylinder, and two third mounting holes 14 are correspondingly provided on the body 10. The locking member 60 passes through the second mounting hole 23, the first mounting hole 55, and the third mounting hole 14 in sequence, so as to realize the installation of the cylinder, the blocking member 50, and the body 10. In addition, by providing corresponding mounting holes, it is also possible to facilitate the positioning of the relative positions between the blocking member 50, the cylinder, and the body 10, thereby improving the convenience of assembling the salvage device. In addition, by providing the locking member 60 to fix the cylinder, the blocking member 50, and the body 10, the structural stability of the salvage device can be ensured.

[0076] In this embodiment, the connecting portion 52 has an arc-shaped guide surface 53 on one side away from the blocking portion 51. Thus, when the cleaning liquid carries debris through the connecting channel 32, the arc-shaped guide surface 53 can guide the flow of the cleaning liquid, thereby guiding the cleaning liquid carrying debris into the filtering channel 33.

[0077] Specifically, the blocking portion 51 is a first annular block, the connecting portion 52 is a second annular block, and the end surface of the second annular block away from the first annular block is a concave-convex surface, which is an arc-shaped guide surface 53 .

[0078] In this embodiment, the plugging member 50 is provided with an overflow hole 54, which penetrates the plugging portion 51 and the connecting portion 52 along the arrangement direction of the plugging portion 51 and the connecting portion 52. In this way, when too much cleaning liquid flows into the salvage device, when the excessive cleaning liquid flows through the connecting channel 32, it can flow out of the salvage device from the overflow hole 54 and participate in the circulation and cleaning process of the cleaning liquid in the casing 200. In addition, the size of the overflow hole 54 can be set according to the size of the debris to be filtered. When excessive cleaning liquid flows out of the overflow hole 54, the overflow port blocks the debris therein, and the debris enters the filtering channel 33 with the subsequent flow of cleaning liquid, thereby ensuring the salvage effect of the salvage device while ensuring the circulation process of the cleaning liquid.

[0079] In this embodiment, a cleaning port 21 is provided on one side of the filter structure 20 corresponding to the filter channel 33, and the cleaning port 21 is spaced apart from the filter port 35. The salvage device also includes a movable door 70, which is detachably or movably arranged at the cleaning port 21. The movable door 70 has a closed position and an open position; when the movable door 70 is in the closed position, the movable door 70 is blocked at the cleaning port 21; when the movable door 70 is in the open position, the movable door 70 avoids the cleaning port 21. In this way, by setting the cleaning port 21 on one side corresponding to the filter channel 33 in the filter structure 20, and setting the movable door 70 at the position of the cleaning port 21, the movable door 70 can be opened to clean the debris accumulated in the filter channel 33. As a result, the salvage device can more conveniently clean the debris collected by the salvage device without disassembling the entire filter structure 20, thereby improving the efficiency of cleaning the debris inside the salvage device, and further improving the salvage efficiency of the salvage device.

[0080] Specifically, when the movable door 70 is movably disposed at the cleaning port 21 , the movable door 70 may be connected to the filtering structure 20 or the main body via a hinge device.

[0081] In this embodiment, the cleaning port 21 is arranged at the bottom of the filter structure 20. As the salvaging device salvages, the debris in the filter channel 33 falls to the bottom of the filter channel 33 under the action of gravity. The cleaning port 21 is arranged at the bottom of the filter structure 20, and when the movable door 70 is opened, the deposited debris can be directly cleaned, thereby improving the debris cleaning effect and the debris cleaning efficiency.

[0082] In this embodiment, the cleaning port 21 is arranged at one end of the filter structure 20 away from the connecting passage 32. The main body 10 includes a mounting portion 15, at least a portion of the mounting portion 15 corresponds to the cleaning port 21, and the movable door 70 is mounted at the cleaning port 21 through the mounting portion 15. In this way, the movable door 70 can be installed and removed at the mounting portion 15, thereby improving the efficiency of installing and removing the movable door 70. In addition, at least a portion of the mounting portion 15 corresponds to the cleaning port 21, so that the simple correspondence of the filter structure 20 on the main body can be achieved through the portion of the mounting portion 15 corresponding to the cleaning port 21.

[0083] Specifically, when the movable door 70 is detachably disposed at the cleaning port 21, a first screw hole 71 is provided on the movable door 70, and a second screw hole 151 corresponding thereto is also provided on the mounting portion 15, and a bolt passes through the first screw hole 71 and the second screw hole 151 to realize the installation and removal of the movable door 70 on the mounting portion 15. In this way, the removal of the movable door 70 is relatively simple and convenient, thereby improving the efficiency of the removal and installation of the movable door 70.

[0084] Specifically, long strip grooves are processed on both sides of the movable door 70, and the first screw hole 71 is arranged in the middle of the movable door 70 to facilitate installation and removal of the movable door.

[0085] Specifically, a plurality of screw holes are designed on the movable door 70, and the movable door 70 is fixed by a plurality of screws to ensure the connection reliability between the cylinder and the main body.

[0086] In this embodiment, a first positioning portion 22 is provided at the first end of the filter structure 20, and a second positioning portion 11 matched with the first positioning portion 22 is provided on the body 10 to position the filter structure 20. In this way, the correspondence of the filter structure 20 on the body 10 can be achieved through the cooperation of the first positioning portion 22 and the second positioning portion 11, so that the inflow channel 31, the filter channel 33, and the connecting channel 32 can be effectively formed between the filter structure 20 and the body 10, and the inlet 34 is on one side of the inflow channel 31 and the filter port 35 is on one side of the filter channel 33, thereby simplifying the installation process of the salvage device and improving the convenience of using the salvage device.

[0087] Specifically, a positioning protrusion is provided on one of the first positioning portion 22 and the second positioning portion 11 , and a positioning groove matched with the positioning protrusion is provided on the other of the first positioning portion 22 and the second positioning portion 11 .

[0088] In this embodiment, when the inlet 34 is disposed between at least part of the end of the filter structure 20 and the body 10, the second positioning portion 11 is provided with an avoidance notch 111, which is disposed through both ends of the second positioning portion, and at least part of the avoidance notch 111 is disposed opposite to the inlet 34. In this way, the second positioning portion 11 can avoid the inlet 34, so that the liquid can flow smoothly into the inlet 34.

[0089] In this embodiment, the body 10 includes a main body section 12 and a necking section 13 connected to each other, and the second positioning portion 11 is arranged at one end of the main body section 12 close to the necking section 13, and the cross-sectional area of ​​the necking section 13 is smaller than the cross-sectional area of ​​the second positioning portion 11. Since the salvage device is arranged in the casing 200, a holding space can be formed between the casing 200 and the necking section 13, so as to guide the cleaning liquid into the inlet 34, thereby improving the salvage efficiency of the salvage device. Specifically, the inlet 34 is arranged on one side of the inlet channel 31, and the second positioning portion 11 forms an avoidance gap 111 at the inlet 34. The cleaning liquid reaches the inlet 34 under the guidance of the necking section 13, thereby entering the inlet channel 31 and the filter channel 33, and then filtering the cleaning liquid.

[0090] Specifically, the body 10 and the partition 40 are formed as follows: a tubular structure is used, and two grooves are milled on the tubular structure and spaced apart along the circumference of the tubular structure to form an interconnected body 10 and partition 40, and the two grooves are used to form an inflow channel and a filtration channel respectively.

[0091] From the above description, it can be seen that the above embodiment of the utility model achieves the following technical effects: the debris filtered by the filter port 35 can be collected, and the debris will remain in the filter channel 33, and will not return to the salvage device with the well washing fluid, thereby improving the salvage effect of the salvage device. In addition, in actual application, the salvage device of the utility model can connect multiple tools in the drill string to continuously clean the working fluid without reducing the displacement or stopping the pump, thereby improving the milling efficiency.

[0092] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0093] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0094] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0095] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A salvage device, characterized in that: include: Ontology(10); A filter structure (20), wherein at least a portion of the filter structure (20) is sleeved on the body (10) and is spaced apart from at least a portion of the body (10); an inflow channel (31), a communication channel (32) and a filter channel (33) are sequentially connected between the filter structure (20) and the body (10); the inflow channel (31) and the filter channel (33) are spaced apart and arranged on the side of the body (10) along the circumference of the body (10); and the communication channel (32) is located at the ends of the inflow channel (31) and the filter channel (33); The salvaging device comprises an inlet (34) connected to the inflow channel (31) and a filter port (35) connected to the filter channel (33); the inlet (34) is arranged at a position of the filter structure (20) corresponding to the inflow channel (31) or between at least a part of the end of the filter structure (20) and the body (10); the filter port (35) is arranged at a position of the filter structure (20) corresponding to the filter channel (33) or in the filter channel (33).

2. The salvage device according to claim 1, characterized in that: The filtering structure (20) is a cylinder, and a filtering port (35) is provided on the side wall of the cylinder; or, The filter structure (20) comprises a barrel and a filter element, wherein the barrel forms at least a portion of the filter structure (20), the filter element is arranged between the barrel and the body (10), and the filter port (35) is arranged on the filter element.

3. The salvage device according to claim 1, characterized in that: The filtering structure (20) is a cylinder, and a plurality of filtering ports (35) are arranged on the side wall of the cylinder; Wherein, a plurality of the filter ports (35) are arranged at intervals on the side wall of the cylinder; and / or, A plurality of the filter ports (35) are arranged on the cylinder at intervals along the circumference of the cylinder to form a filter portion (351); a plurality of the filter portions (351) are arranged on the cylinder; and the plurality of the filter portions (351) are arranged at intervals along the length direction of the cylinder; and / or, The filter port (35) is a strip-shaped port, and the filter port (35) extends along the extension direction of the cylinder.

4. The salvage device according to claim 1, characterized in that: At least part of the filtering structure (20) is a cylinder; the salvaging device further comprises a partition (40), the partition (40) being arranged between the body (10) and the cylinder, one side of the partition (40) being connected to or abutting against the body (10), and the other side of the partition (40) being connected to or abutting against the inner wall of the cylinder, and one end of the cylinder away from the inlet (34) protruding from the partition (40) to enclose the connecting passage (32); There are two partitions (40), the two partitions (40) are arranged at intervals along the peripheral direction of the body (10), the two partitions (40) and one side of the cylinder form the inflow channel (31), and the two partitions (40) and the other side of the cylinder form the filtration channel (33); or, The outer wall of the main body (10) is in contact with at least part of the inner wall of the cylinder to form a contact portion, the partition (40) is spaced apart from the contact portion, the partition (40) and one side of the cylinder form the inflow channel (31), and the partition (40) and the other side of the cylinder form a filtration channel (33).

5. The fishing device according to any one of claims 2 to 4, characterized in that: The salvaging device also includes: A blocking member (50) is arranged at an end of the cylinder away from the inlet (34); The sealing member (50) comprises a sealing portion (51) and a connecting portion (52) which are connected to each other, wherein the sealing portion (51) seals the end of the cylinder and is located at the gap between the cylinder and the main body (10), and the connecting portion (52) is inserted between the cylinder and the main body (10).

6. The salvaging device according to claim 5, characterized in that: The salvaging device further comprises a locking member (60), wherein the locking member (60) passes through the cylinder and the connecting portion (52) and is locked and connected to the main body (10); and / or, The blocking piece (50) comprises a first splicing block and a second splicing block which are spliced ​​together; the blocking portion (51) comprises a first splicing block (511) and a second splicing block (512) which are spliced ​​together; the connecting portion (52) comprises a first connecting block (521) and a second connecting block (522) which are spliced ​​together; the first splicing block comprises the first splicing block (511) and the first connecting block (521) which are connected to each other; the second splicing block comprises the second splicing block (512) and the second connecting block (522) which are connected to each other; the first splicing block has a first splicing surface; and the second splicing block (512) has a second splicing surface which matches the first splicing surface.

7. The salvaging device according to claim 5, characterized in that: The connecting portion (52) has an arc-shaped flow-guiding surface (53) on a side away from the blocking portion (51); and / or, The blocking member (50) is provided with an overflow hole (54), and the overflow hole (54) penetrates the blocking portion (51) and the connecting portion (52) along the arrangement direction of the blocking portion (51) and the connecting portion (52); and / or, The blocking member (50) is an annular structure.

8. The salvaging device according to claim 1, characterized in that: A cleaning port (21) is provided on one side of the filter structure (20) corresponding to the filter channel (33), and the cleaning port (21) and the filter port (35) are arranged at intervals; The salvaging device also includes: a movable door (70), the movable door (70) being detachably or movably arranged at the cleaning opening (21); The movable door (70) has a closed position and an open position; when the movable door (70) is in the closed position, the movable door (70) blocks the cleaning port (21); when the movable door (70) is in the open position, the movable door (70) avoids the cleaning port (21).

9. The salvaging device according to claim 8, characterized in that: The cleaning port (21) is arranged at the bottom of the filtering structure (20); and / or, The cleaning port (21) is arranged at an end of the filter structure (20) away from the connecting channel (32).

10. The fishing device according to any one of claims 1 to 4, characterized in that: A first positioning portion (22) is provided at the first end of the filtering structure (20), and a second positioning portion (11) adapted to the first positioning portion (22) is provided on the body (10) to position the filtering structure (20); Wherein, when the inlet (34) is arranged between at least part of the end of the filtering structure (20) and the body (10), the second positioning portion (11) is provided with an avoidance notch (111), the avoidance notch (111) is arranged through both ends of the second positioning portion (11), and at least part of the avoidance notch (111) is arranged opposite to the inlet (34); and / or, The body (10) comprises a main body section (12) and a neck section (13) which are connected to each other, and the second positioning portion (11) is arranged at one end of the main body section (12) close to the neck section (13), and the cross-sectional area of ​​the neck section (13) is smaller than the cross-sectional area of ​​the second positioning portion (11).

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