Wireline coring fish storage device and storage processing method

Abstract

The present application belongs to the technical field of drilling engineering, and discloses a rope core drill fisher storage device and a storage processing method. The rope core drill fisher storage device comprises an actuator installed on a derrick and at least one storage barrel, the central axis of the storage barrel is parallel to the center line of the wellhead and is arranged at intervals, the actuator can be sleeved outside the drill fisher, the actuator moves to drive the drill fisher to move between the laying position and above the storage barrel, and the drill fisher is lifted or lowered by the rope to be put into or moved out of the storage barrel. The rope core drill fisher storage device can be used for storing the drill fisher, preventing the drill fisher and the rope from occupying the space of the center line of the wellhead, ensuring the normal drilling operation, and at the same time, the drill fisher is mechanically pulled to effectively reduce the labor intensity. The actuator, the storage barrel and the drill fisher cooperate with each other to provide a storage locking mode of the drill fisher in different operation stages, reduce the number of high-altitude operation of personnel, and reduce the risk of high-altitude operation.

Description

Technical Field

[0001] This invention relates to the field of drilling engineering technology, and in particular to a storage device and storage and processing method for a wireline coring tool. Background Technology

[0002] Wireline coring is a method that allows core samples to be retrieved from the bottom of a hole without lifting the drill string. It significantly improves the efficiency of coring operations and saves time, and is therefore widely used.

[0003] Wireline coring requires three main pieces of equipment: a coring winch, a retrieval device, and a core sampler. The coring winch is positioned on the ground and houses sufficient wire rope. The retrieval device is connected to the end of the wire rope. The core sampler enters the borehole, rotates, and collects the core. During wireline coring, the core sampler is placed at the bottom of the drill string. As drilling progresses, the core enters the core sampler. When the core sampler has collected enough core, the coring winch is activated, and the wire rope is released at the center of the wellhead, allowing the retrieval device to enter the bottom of the borehole from inside the drill pipe. The retrieval device is then connected to the core sampler. The coring winch is then activated again to retrieve the retrieval device with the core sampler attached, bringing the core sampler back to the surface.

[0004] In traditional operations, the retrieval tool is typically guided by a pulley mounted on top of the derrick to ensure it is positioned directly above the wellhead centerline. After retrieval, the tool and wire rope are manually pulled away from the wellhead centerline to avoid interference with other drilling equipment. However, because the pulley is positioned directly above the wellhead, as deep well operations progress and the derrick height increases, the angle of the coring wire rope deflection decreases. Using manual traction, the coring wire rope occupies space above the wellhead centerline, affecting normal drilling operations and significantly consuming manpower. Furthermore, working at height poses significant safety hazards. Summary of the Invention

[0005] One objective of this invention is to provide a storage device for a wireline coring device, which can be used to store the coring device, prevent the coring device and the wireline from occupying the space of the wellhead centerline, ensure the normal progress of drilling operations, and at the same time, the mechanized traction of the coring device can effectively reduce the labor intensity of personnel, provide a storage and locking method for the coring device at different stages of the operation, reduce the number of times personnel work at height, and reduce the risks of working at height.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A wireline coring device storage unit is mounted on a derrick, which is erected around the wellhead. A central pulley is located at the top of the derrick, and a rope is wound around this pulley. The end of the rope is connected to a retrieval device, which includes an upper rod and a lower retrieval head. The diameter of the upper rod is smaller than the diameter of the lower retrieval head. When the rope is in a naturally vertical position, the retrieval device is directly opposite the center of the wellhead, and the retrieval device is in its deployment position. The wireline coring device storage unit includes:

[0008] At least one storage tank is installed on the derrick, and the central axis of the storage tank is parallel to and spaced apart from the center line of the wellhead;

[0009] An actuator is mounted on the derrick and can be fitted over the retrieval device. When the actuator is activated, it moves the retrieval device between the deployment position and above the storage tank. When the retrieval device is above the storage tank, the rope pulls or lowers the retrieval device to place or remove it from the storage tank.

[0010] Optionally, two storage buckets are provided, and the two storage buckets are symmetrically arranged on both sides of the line connecting the center of the actuator and the center of the wellhead.

[0011] Optionally, the actuator includes a clamping member that can be fitted over the retrieval device and can move above the placement position and the storage bucket, while always remaining horizontal.

[0012] Optionally, the clamping member includes a first clamping part and a second clamping part, one end of the first clamping part and one end of the second clamping part are hinged together, and the first clamping part and the second clamping part can move around their respective hinged ends in a direction closer to or farther from each other, so as to be fitted onto the outside of the retrieval device.

[0013] Optionally, the first clamping part and the second clamping part are respectively provided with a first arc-shaped groove and a second arc-shaped groove on their opposite sides. The first arc-shaped groove and the second arc-shaped groove are fastened together and sleeved on the outside of the retrieval device. There is a gap between the groove wall of the first arc-shaped groove and the second arc-shaped groove and the retrieval device.

[0014] Optionally, the first clamping part is provided with a plurality of first rollers, the plurality of first rollers are arranged at intervals along the circumference of the first arc-shaped groove, the rotation axis of the first rollers is parallel to the horizontal direction, the bottom of the first arc-shaped groove is provided with a first clearance opening, and part of the wheel body of the first rollers extends out of the first arc-shaped groove from the first clearance opening.

[0015] The second clamping part is provided with a plurality of second rollers, which are arranged at intervals along the circumference of the second arc-shaped groove. The rotation axis of the second rollers is parallel to the horizontal direction. A second clearance opening is opened at the bottom of the second arc-shaped groove, and part of the wheel body of the second rollers extends out of the second arc-shaped groove through the second clearance opening.

[0016] The distance between the wheel surfaces of the first roller and the second roller and the retrieval device is greater than or equal to zero.

[0017] Optionally, the actuator further includes a mounting base, a drive rod, a limiting rod, and a telescopic drive component. The mounting base is disposed on the derrick. The drive rod and the limiting rod are parallel and spaced apart. Both ends of the drive rod are rotatably connected to the clamping member and the mounting base, respectively. Both ends of the limiting rod are rotatably connected to the clamping member and the mounting base, respectively. The telescopic drive component is disposed on the mounting base. The telescopic end of the telescopic drive component is rotatably connected to the drive rod. The telescopic end extends and retracts, driving the drive rod to rotate around the mounting base.

[0018] Optionally, the actuator further includes a rotary drive component, which is disposed on the derrick. The output end of the rotary drive component is rotatably connected to the mounting base and is capable of driving the mounting base to rotate relative to the derrick.

[0019] Optionally, the storage tank includes a cylindrical body and a locking structure. The cylindrical body is fixed to the derrick, and the locking structure includes a pressure plate. An clearance groove is provided on the side wall of the cylindrical body. The pressure plate is rotatably connected to the side wall of the cylindrical body. Part of the pressure plate can extend into the clearance groove and press the retrieval device inside the cylindrical body against the inner wall of the cylindrical body.

[0020] Another object of the present invention is to provide a method for storing and processing a rope coring retrieval device, wherein the above-mentioned rope coring retrieval device storage device is used to store the retrieval device, and the method for storing and processing the rope coring retrieval device includes the following steps:

[0021] S100. Keep the center of the retrieval device aligned with the center of the wellhead, and lift the retrieval device from the wellhead to the deployment position using a rope;

[0022] S200: Start the actuator and attach the actuator to the outside of the retrieval device;

[0023] S300: Control the actuator to move the retrieval device from the placement position to above the storage tank;

[0024] S400. Keep the actuator always attached to the outside of the retrieval device, and lower the retrieval device into the storage bucket using the rope.

[0025] The beneficial effects of this invention are:

[0026] The wireline coring device storage device provided by this invention includes an actuator and at least one storage bucket. The storage bucket is mounted on the derrick and is used to store the retrieval device when idle. The central axis of the storage bucket is parallel to and spaced apart from the wellhead centerline, effectively preventing the retrieval device and rope from occupying space along the wellhead centerline, thus ensuring the normal operation of drilling. The actuator is mounted on the derrick and can be fitted over the retrieval device. When the actuator is activated, it moves the retrieval device between the deployment position and above the storage bucket. In other words, the actuator can pull the retrieval device from the deployment position to above the storage bucket, and can also move the retrieval device above the storage bucket to the deployment position without manual traction, effectively reducing labor intensity and the risks of working at height. The retrieval device can be placed in or removed from the storage bucket by lifting or lowering the rope; the operation is simple, time-saving, and labor-saving.

[0027] The rope coring retrieval device storage and processing method provided by the present invention uses the above-mentioned rope coring retrieval device storage device to store the retrieval device. The actuator, storage tank and retrieval device cooperate with each other to provide a storage and locking method for the retrieval device at different stages of the operation, reducing the number of times personnel work at height and effectively reducing the risk of working at height. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0029] Figure 1 This is an assembly diagram of the rope coring and retrieval device storage device and the derrick provided in an embodiment of the present invention;

[0030] Figure 2 This is a top view of the rope coring and retrieval device storage device provided in this embodiment of the invention installed on the derrick;

[0031] Figure 3 This is a top view of the storage device for the rope coring retrieval device provided in an embodiment of the present invention;

[0032] Figure 4 This is a side view of the storage device for the rope coring retrieval device provided in an embodiment of the present invention;

[0033] Figure 5 This is a process diagram of the moving retrieval device of the rope coring retrieval storage device provided in the embodiment of the present invention;

[0034] Figure 6 This is a state diagram of the clamping member when it is open and closed according to an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the storage bucket provided in an embodiment of the present invention;

[0036] Figure 8 yes Figure 7 A magnified view of a portion of point A in the middle.

[0037] In the picture:

[0038] 100. Derrick; 101. Wellhead; 102. Center pulley; 103. Guide pulley; 200. Salvage device; 300. Rope; 400. Core-taking winch; 500. Top drive system;

[0039] 1. Storage tank; 11. Cylinder body; 111. Clearance groove; 12. Locking structure; 121. Pressure plate; 122. Fastening screw; 123. Fastening nut; 13. Guide ring; 14. Fixed base;

[0040] 2. Actuator; 21. Clamping component; 211. First clamping part; 2111. First arc-shaped groove; 212. Second clamping part; 2121. Second arc-shaped groove; 213. First roller; 214. Second roller; 215. Opening and closing drive component; 22. Mounting base; 23. Drive rod; 24. Limiting rod; 25. Telescopic drive component; 26. Rotation drive component. Detailed Implementation

[0041] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0046] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0049] When using wireline coring to obtain rock cores, such as Figure 1 and Figure 2As shown, the derrick 100 is erected around the wellhead 101. A central pulley 102 is installed at the top of the derrick 100, and at least one guide pulley 103 is installed on the side of the derrick 100. One end of the rope 300 is connected to the core-taking winch 400, and the other end of the rope 300 passes through the guide pulley 103 and the central pulley 102 in sequence, and is connected to the retrieval device 200. When the rope 300 is in a natural vertical state, the retrieval device 200 is directly opposite the center of the wellhead 101. At this time, the retrieval device 200 is in the deployment position. Lowering the retrieval device 200 allows it to be directly opposite the drill pipe and extend into the drill pipe to connect with the core-taking device. Pulling up the retrieval device allows for the recovery of the core-taking device.

[0050] This embodiment provides a cable-stayed coring device storage device, which can be used to store the coring device 200 when it is idle, preventing the coring device 200 and the cable 300 from occupying the wellhead centerline space, thereby ensuring the normal progress of drilling operations.

[0051] Specifically, such as Figure 2 , Figure 3 and Figure 5 As shown, the cable-operated coring device storage unit includes an actuator 2 and at least one storage bucket 1. The storage bucket 1 is mounted on the derrick 100 and is used to store the retrieval device 200 when idle. The central axis of the storage bucket 1 is parallel to and spaced apart from the wellhead centerline, effectively preventing the retrieval device 200 and the cable 300 from occupying space along the wellhead centerline. The actuator 2 is mounted on the derrick 100 and can be fitted over the retrieval device 200. When the actuator 2 is activated, it moves the retrieval device 200 between the deployment position and above the storage bucket 1. In other words, the actuator 2 can pull the retrieval device 200 from the deployment position to above the storage bucket 1, and can also move the retrieval device 200 above the storage bucket 1 back to the deployment position without manual traction, effectively reducing labor intensity and the risks of high-altitude operations. By using rope 300 to lift or lower the retrieval device 200, the retrieval device 200, which is located above the storage tank 1, can be placed into or removed from the storage tank 1. The operation is simple, time-saving and labor-saving.

[0052] It should be noted that the distance between the storage tank 1 and the actuator 2 and the wellhead centerline must be greater than the radius of the top drive system 500. This setting can prevent the top drive system 500, which travels up and down along the wellhead centerline, from colliding with the storage tank 1 and the actuator 2, thus improving safety during operation.

[0053] Optionally, in this embodiment, as Figures 2-4 As shown, there are two storage tanks 1, which are symmetrically arranged on both sides of the line connecting the center of the actuator 2 and the center of the wellhead 101. The actuator 2 can pull the retrieval device 200 above either of the two storage tanks 1.

[0054] Continue to refer to Figures 3-6 The actuator 2 includes a clamping member 21, which can be sleeved over the retrieval device 200. In this embodiment, the retrieval device 200 includes an upper rod and a lower retrieval head. The diameter of the upper rod is smaller than the diameter of the lower retrieval head. The upper rod is connected to a rope 300, and the lower retrieval head is connected to a core-collecting device. The clamping member 21 is sleeved over the upper rod. The clamping member 21 can move above the placement position and the storage tank 1, and always remains horizontal, thereby ensuring that the retrieval device 200 is always in a vertical state and preventing the retrieval device 200 from tilting.

[0055] Specifically, such as Figure 6 As shown, the clamping member 21 includes a first clamping part 211 and a second clamping part 212. One end of the first clamping part 211 and one end of the second clamping part 212 are hinged together. The first clamping part 211 and the second clamping part 212 can move around their respective hinged ends in a direction closer to or further away from each other to be fitted onto the retrieval device 200. By opening or closing the first clamping part 211 and the second clamping part 212, the retrieval device 200 can be fitted and released.

[0056] Preferably, the clamping member 21 further includes an opening / closing drive member 215. The output end of the opening / closing drive member 215 is connected to the first clamping part 211 and the second clamping part 212 respectively, and the opening / closing drive member 215 can drive the first clamping part 211 and the second clamping part 212 to switch between open and closed states. In this embodiment, the opening / closing drive member 215 can be a hydraulic cylinder or a pneumatic cylinder, preferably a hydraulic cylinder.

[0057] To be more specific, continue to refer to Figure 6 The first clamping part 211 and the second clamping part 212 have a first arc-shaped groove 2111 and a second arc-shaped groove 2121 respectively recessed on opposite sides. The first arc-shaped groove 2111 and the second arc-shaped groove 2121 are fastened and sleeved on the outside of the retrieval device 200, and there is a gap between the groove wall of the first arc-shaped groove 2111 and the second arc-shaped groove 2121 and the retrieval device 200. That is to say, the first clamping part 211 and the second clamping part 212 are not firmly clamped to the side wall of the retrieval device 200, and the retrieval device 200 can swing left and right or move up and down in the vertical direction within the clamping space formed by the fastening of the first arc-shaped groove 2111 and the second arc-shaped groove 2121. With this configuration, when the first clamping member 21 is fitted over the retrieval device 200 and the retrieval device 200 is pulled from its deployment position to above the storage tank 1, there is no need to additionally control the movement of the first clamping part 211 and the second clamping part 212. Simply controlling the rope 300 to lower the retrieval device 200 will allow it to be placed into the storage tank 1. The clamping member 21 serves both as a traction element when the retrieval device 200 moves and as a guide and limiter element when the retrieval device 200 is lowered.

[0058] Furthermore, to prevent friction between the sidewall of the retrieval device 200 and the walls of the first arc-shaped groove 2111 and the second arc-shaped groove 2121 when the retrieval device 200 moves vertically up and down in the clamping space formed by the engagement of the first arc-shaped groove 2111 and the second arc-shaped groove 2121, thus avoiding wear on the retrieval device 200 and the groove walls. The first clamping part 211 is provided with a plurality of first rollers 213, which are arranged at intervals along the circumference of the first arc-shaped groove 2111. The rotation axis of the first rollers 213 is parallel to the horizontal direction. A first clearance opening is provided at the bottom of the first arc-shaped groove 2111, and part of the wheel body of the first rollers 213 extends out of the first arc-shaped groove 2111 through the first clearance opening. Correspondingly, the second clamping part 212 is provided with a plurality of second rollers 214, which are arranged at intervals along the circumference of the second arc-shaped groove 2121. The rotation axis of the second rollers 214 is parallel to the horizontal direction. A second clearance opening is provided at the bottom of the second arc-shaped groove 2121, and part of the wheel body of the second rollers 214 extends out of the second arc-shaped groove 2121 through the second clearance opening. By converting the sliding friction between the side wall of the retrieval device 200 and the groove wall into rolling friction between the side wall of the retrieval device 200 and the rollers, friction loss is effectively reduced. Meanwhile, the arrangement of the first roller 213 and the second roller 214 can also improve the smoothness of the retrieval device 200 when it moves in the vertical direction.

[0059] Preferably, after the first clamping part 211 and the second clamping part 212 are closed, the distance between the wheel surface of the first roller 213 and the second roller 214 and the center line of the upper rod of the retrieval device 200 is less than the radius of the lower retrieval head of the retrieval device 200. The retrieval device 200 has sufficient safe operating space, does not require precise control of the core-retrieving winch 400, and the retrieval device 200 will not fall off.

[0060] like Figure 3 and Figure 5 As shown, the actuator 2 also includes a mounting base 22, a drive rod 23, a limiting rod 24, and a telescopic drive component 25. The mounting base 22 is mounted on the derrick 100. The drive rod 23 and the limiting rod 24 are parallel and spaced apart. Both ends of the drive rod 23 are rotatably connected to the clamping component 21 and the mounting base 22, respectively. Similarly, both ends of the limiting rod 24 are rotatably connected to the clamping component 21 and the mounting base 22, respectively. In other words, the mounting base 22, drive rod 23, clamping component 21, and limiting rod 24 form a parallelogram-shaped linkage structure. The clamping component 21 always remains parallel to the mounting base 22, meaning it is always horizontal. The telescopic drive component 25 is mounted on the mounting base 22. The telescopic end of the telescopic drive component 25 is rotatably connected to the drive rod 23. The telescopic extension and retraction of this end drives the drive rod 23 to rotate around the mounting base 22, thereby moving the clamping component 21 between the placement position and above the storage tank 1. In this embodiment, the telescopic drive component 25 is preferably a hydraulic cylinder.

[0061] Furthermore, referring to Figure 3 and Figure 4 In this embodiment, the actuator 2 further includes a rotary drive 26. The rotary drive 26 is mounted on the derrick 100, and its output end is rotatably connected to the mounting base 22, enabling the mounting base 22 to rotate relative to the derrick 100. When the center of the wellhead 101, the center of the storage tank 1, and the center of the clamping member 21 are not collinear, after the clamping member 21 is fitted outside the retrieval device 200, it needs to rotate above the storage tank 1. At this time, the rotary drive 26 can drive the mounting base 22 to rotate, thereby causing the clamping member 21 to rotate. Exemplarily, the rotary drive 26 is preferably a hydraulic cylinder.

[0062] Optionally, such as Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the storage tank 1 includes a cylindrical body 11 and a locking structure 12. The cylindrical body 11 is fixed to the derrick 100. The locking structure 12 includes a pressure plate 121. An avoidance groove 111 is formed on the side wall of the cylindrical body 11. The pressure plate 121 is rotatably connected to the side wall of the cylindrical body 11. Part of the pressure plate 121 can extend into the avoidance groove 111 and press the retrieval device 200 inside the cylindrical body 11 against the inner wall of the cylindrical body 11. When the retrieval device 200 is placed into the storage tank 1, the locking structure 12 fixes the retrieval device 200 to the storage tank 1, thereby preventing the retrieval device 200 from falling out of the storage tank 1 and reducing the risk of falling from a height.

[0063] Specifically, two clearance grooves 111 are symmetrically arranged on both sides of the cylinder 11, and two pressure plates 121 are correspondingly provided. The two pressure plates 121 are rotatably connected to the same side of the opening of the two clearance grooves 111, and the free ends of the two pressure plates 121 can extend out from the other side of the opening of the corresponding clearance groove 111. The locking structure 12 also includes a fastening screw 122 and a fastening nut 123. The head of the fastening screw 122 is rotatably connected to the free end of one of the pressure plates 121, and the free end of the other pressure plate 121 has a connecting hole. The rod of the fastening screw 122 can pass through the connecting hole and be screwed to the fastening nut 123. After the retrieval device 200 is placed into the storage tank 1, the distance between the two pressure plates 121 can be reduced by tightening the fastening nut 123, thereby clamping the two sides of the retrieval device 200 by the two pressure plates 121, and fixing the relative position between the retrieval device 200 and the storage tank 1.

[0064] More specifically, the storage tank 1 also includes a guide ring 13, which is coaxially disposed above the cylinder 11. The diameter of the guide ring 13 gradually increases in the direction away from the cylinder 11. The guide ring 13 guides the retrieval device 200 as it falls into the storage tank 1, ensuring that the retrieval device 200 falls smoothly into the cylinder 11. In this embodiment, the vertical distance between the top of the guide ring 13 and the bottom of the clamping member 21 is 3-5 times the length of the lower retrieval head of the retrieval device 200.

[0065] More specifically, the storage tank 1 also includes a fixing base 14 for connecting the cylinder 11 and the derrick 100. Multiple fixing bases 14 are provided, spaced apart along the height of the cylinder 11. The multiple fixing bases 14 ensure the secure installation of the storage tank 1, thereby guaranteeing the safety of the storage tank 1 after the retrieval device 200 is stored inside.

[0066] Understandably, when the retrieval device 200 is not used for an extended period, it is stored in the storage container 1, with the locking structure 12 closed, clamping the upper rod of the retrieval device 200. The clamping member 21 of the actuator 2 is located above the storage container 1, and is closed and fitted onto the upper rod of the retrieval device 200. At this time, under the dual protection of the clamping member 21 and the locking structure 12, the risk of the retrieval device 200 falling from a height is effectively reduced.

[0067] This embodiment also provides a method for storing and processing a rope coring retrieval device. The retrieval device 200 is stored using the aforementioned rope coring retrieval device storage device. The method for storing and processing a rope coring retrieval device includes the following steps:

[0068] S100. Keep the center of the retrieval device 200 aligned with the center of the wellhead 101, and lift the retrieval device 200 from the wellhead 101 to the deployment position using the rope 300.

[0069] S200, Start actuator 2 and mount actuator 2 outside the retrieval device 200.

[0070] S300 controls the actuator 2 to move the retrieval device 200 from the placement position to above the storage tank 1.

[0071] S400, Keep the actuator 2 always attached to the outside of the retrieval device 200, and lower the retrieval device 200 into the storage tank 1.

[0072] After step S400, the following steps are also required:

[0073] S500, close the locking structure 12, and lock the retrieval device 200 and the storage tank 1.

[0074] Accordingly, when moving the retrieval device 200 from the storage tank 1 to the deployment position, the operation is reversed. That is:

[0075] First, personnel on the derrick 100 release the locking structure 12 on the storage bucket 1.

[0076] Then, the core extraction winch 400 is used to lift the retrieval device 200 so that the lower retrieval head of the retrieval device 200 is completely removed from the storage tank 1.

[0077] Subsequently, the rotary drive 26 is activated to move the retrieval device 200 from above the storage tank 1 to the line connecting the center of the clamping device 21 and the center of the wellhead 101.

[0078] Next, the telescopic drive 25 is activated to guide the retrieval device 200 to the center line of the wellhead.

[0079] Finally, open the first clamping part 211 and the second clamping part 212, release the retrieval device 200, and control the clamping part 21 to return to its original position.

[0080] Understandably, because wireline coring is an intermittent process, retrieval is only required once the coring device has retrieved a core. Therefore, during periods of inactivity, the retrieval device 200 is locked using the limiting position of the clamping member 21 and the locking structure 12. When drilling begins, after one retrieval, drilling continues for a period before another retrieval attempt. During this time, the retrieval device 200 is stored in the storage container 1. In this case, locking the retrieval device 200 using the locking structure 12 is not necessary; simply placing the clamping member 21 over the retrieval device 200 ensures it can be quickly pulled out of the storage container 1 for the next retrieval attempt. Therefore, once drilling begins, the operator only needs to go up to the derrick 100 to release the locking structure 12 initially, and subsequently use the clamping member 21 to ensure the retrieval device 200 does not detach from the storage container 1.

[0081] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A storage device for a rope coring and retrieval device, characterized in that, The derrick (100) is mounted on the derrick (100) around the wellhead (101). A central pulley (102) is located at the top of the derrick (100), and a rope (300) is wound around the central pulley (102). The end of the rope (300) is connected to a retrieval device (200). The retrieval device (200) includes an upper rod and a lower retrieval head. The diameter of the upper rod is smaller than the diameter of the lower retrieval head. When the rope (300) is in a naturally vertical state, the retrieval device (200) is directly opposite the center of the wellhead (101), and the retrieval device (200) is in its deployment position. The rope coring retrieval device storage device includes: At least one storage tank (1) is installed on the derrick (100), and the central axis of the storage tank (1) is parallel to and spaced apart from the center line of the wellhead; An actuator (2) is mounted on the derrick (100). The actuator (2) can be fitted over the retrieval device (200). When the actuator (2) is activated, it moves the retrieval device (200) between the placement position and above the storage tank (1). When the retrieval device (200) is above the storage tank (1), the rope (300) pulls up or lowers the retrieval device (200) so that the retrieval device (200) is placed into or removed from the storage tank (1). The actuator (2) includes a clamping member (21), which can be sleeved on the outside of the retrieval device (200). The clamping member (21) can move above the placement position and the storage bucket (1) and always remain horizontal. The clamping member (21) includes a first clamping part (211) and a second clamping part (212). One end of the first clamping part (211) and one end of the second clamping part (212) are hinged together. The first clamping part (211) and the second clamping part (212) can move around their respective hinged ends toward each other or away from each other, so as to be fitted onto the outside of the retrieval device (200). The first clamping part (211) and the second clamping part (212) are respectively provided with a first arc-shaped groove (2111) and a second arc-shaped groove (2121) on their opposite sides. The first arc-shaped groove (2111) and the second arc-shaped groove (2121) are fastened and sleeved on the outside of the retrieval device (200). There is a gap between the groove wall of the first arc-shaped groove (2111) and the second arc-shaped groove (2121) and the retrieval device (200). The first clamping part (211) is provided with a plurality of first rollers (213), the plurality of first rollers (213) are arranged circumferentially at intervals along the first arc-shaped groove (2111), the rotation axis of the first rollers (213) is parallel to the horizontal direction, the bottom of the first arc-shaped groove (2111) is provided with a first clearance opening, and part of the wheel body of the first rollers (213) extends out of the first arc-shaped groove (2111) through the first clearance opening. The second clamping part (212) is provided with a plurality of second rollers (214), which are arranged circumferentially along the second arc-shaped groove (2121). The rotation axis of the second rollers (214) is parallel to the horizontal direction. A second clearance opening is opened at the bottom of the second arc-shaped groove (2121), and part of the wheel body of the second rollers (214) extends out of the second arc-shaped groove (2121) through the second clearance opening. The distance between the wheel surfaces of the first roller (213) and the second roller (214) and the retrieval device (200) is greater than or equal to zero.

2. The storage device for the rope coring retrieval device according to claim 1, characterized in that, There are two storage buckets (1), which are symmetrically arranged on both sides of the line connecting the center of the actuator (2) and the center of the wellhead (101).

3. The storage device for the rope coring retrieval device according to claim 1, characterized in that, The actuator (2) further includes a mounting base (22), a drive rod (23), a limiting rod (24), and a telescopic drive component (25). The mounting base (22) is mounted on the derrick (100). The drive rod (23) and the limiting rod (24) are parallel and spaced apart. The two ends of the drive rod (23) are rotatably connected to the clamping member (21) and the mounting base (22), respectively. The two ends of the limiting rod (24) are rotatably connected to the clamping member (21) and the mounting base (22), respectively. The telescopic drive component (25) is mounted on the mounting base (22). The telescopic end of the telescopic drive component (25) is rotatably connected to the drive rod (23). The telescopic end extends and retracts, which can drive the drive rod (23) to rotate around the mounting base (22).

4. The storage device for the rope coring and retrieval device according to claim 3, characterized in that, The actuator (2) further includes a rotary drive (26), which is disposed on the derrick (100). The output end of the rotary drive (26) is rotatably connected to the mounting base (22) and can drive the mounting base (22) to rotate relative to the derrick (100).

5. The storage device for the rope coring retrieval device according to any one of claims 1-4, characterized in that, The storage tank (1) includes a cylinder (11) and a locking structure (12). The cylinder (11) is fixed on the derrick (100). The locking structure (12) includes a pressure plate (121). A clearance groove (111) is provided on the side wall of the cylinder (11). The pressure plate (121) is rotatably connected to the side wall of the cylinder (11). Part of the pressure plate (121) can extend into the clearance groove (111) and press the retrieval device (200) inside the cylinder (11) against the inner wall of the cylinder (11).

6. A method for storing and processing rope coring and retrieval equipment, characterized in that, The rope coring device (200) is stored using the storage device for the rope coring device as described in any one of claims 1-5. The storage and processing method for the rope coring device includes the following steps: S100. Keep the center of the retrieval device (200) aligned with the center of the wellhead (101), and lift the retrieval device (200) from the wellhead (101) to the deployment position using a rope (300); S200, Start the actuator (2) and attach the actuator (2) to the outside of the retrieval device (200); S300, control the actuator (2) to move the retrieval device (200) from the placement position to above the storage tank (1); S400. Keep the actuator (2) always outside the retrieval device (200) and lower the retrieval device (200) into the storage bucket (1) by means of the rope (300).

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