Wire line coring fisher storage device and storage processing method

Abstract

The invention belongs to the technical field of drilling engineering, and discloses a rope coring fisher storage device and a storage processing method. The rope coring fisher storage device comprises an executing mechanism and at least one storage barrel which are installed on a derrick, the central axis of the storage barrel and the central line of a wellhead are parallel and arranged in a spaced mode, the executing mechanism can be arranged outside a fisher in a sleeving mode, and the executing mechanism acts to drive the fisher to move between the laying position and the upper portion of the storage barrel. And the fisher is lifted or lowered in cooperation with the rope, so that the fisher is put into or moved out of the storage barrel. The rope coring fisher storage device can be used for storing a fisher, preventing the fisher and a rope from occupying the space of a center line of a wellhead, ensuring normal operation of drilling operation, and meanwhile, mechanically pulling the fisher, and effectively reducing the labor intensity of personnel. The executing mechanism, the storage barrel and the fisher are matched with one another, a storage locking mode of the fisher in different operation stages is provided, the number of high-altitude operation times of personnel is reduced, and the high-altitude operation risk is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of drilling engineering, and in particular to a storage device and a storage processing method for a rope coring salvage device. Background Art

[0002] Rope coring is a method of taking cores from the bottom of a hole without using drilling tools. It can significantly improve the efficiency of coring operations and save operation time, so it is widely used.

[0003] When using the rope coring process, three main equipments are needed: coring winch, salvage and corer. Among them, the coring winch is arranged on the ground and contains enough wire ropes. The end of the wire rope is connected to the salvage. The corer enters the borehole to rotate and collect the core. During the rope coring operation, the corer is placed at the bottom of the drill bit. As the drilling process proceeds, the core enters the coring device. When the corer collects enough cores, the coring winch is started, and the wire rope is released at the center of the wellhead to allow the salvage device to enter the bottom of the hole from the inside of the drill pipe. Then the salvage device is connected to the corer, and then the coring winch is started again to retrieve the salvage device with the corer, and the corer is recovered to the ground.

[0004] In traditional operations, the salvage usually needs to be guided by the guide pulley installed on the top of the derrick to ensure that the salvage can be lowered directly to the center line of the wellhead. After the salvage is recovered, the salvage and the wire rope are manually pulled away from the center line of the wellhead to avoid interference with other drilling equipment. However, since the guide pulley is arranged directly above the wellhead, as the deep well operation progresses, the height of the derrick gradually increases, and the deviation angle of the rope coring wire rope becomes smaller and smaller. When the rope coring wire rope is manually pulled, it occupies the space above the center line of the wellhead, which not only affects the normal drilling operation of the wellhead center line, but also greatly consumes human resources. At the same time, there are also great safety hazards in high-altitude operations. Summary of the invention

[0005] One object of the present invention is to provide a rope coring salvage storage device, which can be used to store the salvage, prevent the salvage and the rope from occupying the wellhead centerline space, and ensure the normal progress of the drilling operation. At the same time, the mechanized traction of the salvage can effectively reduce the labor intensity of personnel, and provide a storage and locking method for the salvage at different stages of the operation, which reduces the number of high-altitude operations by personnel and reduces the risks of high-altitude operations.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A rope coring salvage storage device is arranged on a derrick, the derrick is erected on the side of the wellhead, a central pulley is arranged on the top of the derrick, a rope is wound around the central pulley, an end of the rope is connected to a salvage, the salvage comprises an upper rod body and a lower salvage head, the diameter of the upper rod body is smaller than the diameter of the lower salvage head, when the rope is in a natural vertical state, the salvage is directly opposite to the center of the wellhead, and the salvage is in a deployed position; the rope coring salvage storage device comprises:

[0008] At least one storage bucket, the storage bucket is installed on the derrick, the central axis of the storage bucket is parallel to the center line of the wellhead and is arranged at intervals;

[0009] An actuator is arranged on the derrick, and the actuator can be sleeved outside the salvage. When the actuator is actuated, the salvage is driven to move between the deployment position and above the storage bucket. When the salvage is located above the storage bucket, the rope pulls up or lowers the salvage to put the salvage into or move it out of the storage bucket.

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

[0011] Optionally, the actuator includes a clamping member, which can be sleeved outside the salvage device, and the clamping member can move above the deployment position and the storage bucket and always remain horizontal.

[0012] Optionally, the clamping member includes a first clamping portion and a second clamping portion, one end of the first clamping portion and one end of the second clamping portion are hinged, and the first clamping portion and the second clamping portion can respectively move around their respective hinged ends in a direction close to or away from each other to be sleeved outside the salvage device.

[0013] Optionally, a first arc groove and a second arc groove are respectively recessed on one side of the first clamping portion and the second clamping portion facing each other, the first arc groove and the second arc groove are buckled and sleeved outside the salvage device, and there is a gap between the groove walls of the first arc groove and the second arc groove and the salvage device.

[0014] Optionally, a plurality of first rollers are provided on the first clamping portion, and the plurality of first rollers are arranged at intervals along the circumference of the first arc-shaped groove, the rotation axes of the first rollers are parallel to the horizontal direction, a first avoidance opening is provided at the bottom of the first arc-shaped groove, and a portion of the wheel bodies of the first rollers extend out of the first arc-shaped groove through the first avoidance opening;

[0015] A plurality of second rollers are disposed on the second clamping portion, and the plurality of second rollers are arranged at intervals along the circumference of the second arc-shaped groove, and the rotation axes of the second rollers are parallel to the horizontal direction, and a second avoidance opening is provided at the bottom of the second arc-shaped groove, and a portion of the wheel bodies of the second rollers extend out of the second arc-shaped groove through the second avoidance opening;

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

[0017] Optionally, the actuator also includes a mounting base, a driving rod, a limiting rod and a telescopic driving member, the mounting base is arranged on the derrick, the driving rod and the limiting rod are parallel and spaced apart, the two ends of the driving rod are respectively rotatably connected to the clamping member and the mounting base, the two ends of the limiting rod are respectively rotatably connected to the clamping member and the mounting base, the telescopic driving member is arranged on the mounting base, the telescopic end of the telescopic driving member is rotatably connected to the driving rod, the telescopic end is telescopic, and can drive the driving rod to rotate around the mounting base.

[0018] Optionally, the actuator further comprises a rotary drive member, wherein the rotary drive member is disposed on the derrick, and an output end of the rotary drive member is rotationally connected to the mounting base and can drive the mounting base to rotate relative to the derrick.

[0019] Optionally, the storage barrel includes a cylinder and a locking structure, the cylinder is fixed on the derrick, the locking structure includes a pressure plate, the side wall of the cylinder is provided with an avoidance groove, the pressure plate is rotatably connected to the side wall of the cylinder, part of the pressure plate can extend into the avoidance groove and press the salvage device in the cylinder against the inner wall of the cylinder.

[0020] Another object of the present invention is to provide a storage and processing method for a rope coring salvage, wherein the rope coring salvage storage device is used to store the salvage, and the rope coring salvage storage and processing method comprises the following steps:

[0021] S100, keeping the salvage device aligned with the center of the wellhead, and lifting the salvage device from the wellhead to a deployment position by a rope;

[0022] S200, starting the actuator, and sleeve the actuator outside the salvage device;

[0023] S300, controlling the actuator to move, so as to drive the salvage device to move from the deployment position to above the storage bucket;

[0024] S400, keeping the actuator always mounted outside the salvage device, and lowering the salvage device into the storage bucket via the rope.

[0025] Beneficial effects of the present invention:

[0026] The rope coring salvage storage device provided by the present invention includes an actuator and at least one storage bucket. The storage bucket is installed on the derrick, and the storage bucket is used to store the salvage in an idle state. The central axis of the storage bucket is parallel to the center line of the wellhead and is arranged at intervals, which effectively prevents the salvage and the rope from occupying the center line space of the wellhead, thereby ensuring the normal progress of the drilling operation. The actuator is arranged on the derrick, and the actuator can be sleeved outside the salvage. The actuator is actuated to drive the salvage to move between the deployment position and above the storage bucket. In other words, the actuator can pull the salvage in the deployment position to the top of the storage bucket, and the actuator can also move the salvage above the storage bucket to the deployment position without manual traction, effectively reducing the labor intensity of personnel and reducing the risk of high-altitude operations. By pulling or lowering the salvage with a rope, the salvage above the storage bucket can be put into or removed from the storage bucket, which is simple to operate and saves time and effort.

[0027] The rope coring salvage storage and processing method provided by the present invention adopts the above-mentioned rope coring salvage storage device to store the salvage, and the actuator, storage bucket and salvage cooperate with each other to provide a storage locking method for the salvage at different stages of the operation, thereby reducing the number of high-altitude operations by personnel and effectively reducing the risks of high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0029] Figure 1 It is a schematic diagram of the assembly of the rope coring salvage storage device and the derrick provided by an embodiment of the present invention;

[0030] Figure 2 is a top view of a rope coring salvage device provided by an embodiment of the present invention installed on a derrick;

[0031] Figure 3 is a top view of a rope coring salvage device storage device provided by an embodiment of the present invention;

[0032] Figure 4 is a side view of a rope coring salvage device storage device provided by an embodiment of the present invention;

[0033] Figure 5 is a process diagram of moving a salvage device by a storage device for a rope coring salvage device provided by an embodiment of the present invention;

[0034] Figure 6 is a state diagram of the clamping member provided by an embodiment of the present invention when it is opened and closed;

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

[0036] Figure 8 yes Figure 7 A partial enlarged view of point A in the middle.

[0037] In the figure:

[0038] 100, derrick; 101, wellhead; 102, center pulley; 103, guide pulley; 200, salvage device; 300, rope; 400, coring winch; 500, top drive system;

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

[0040] 2. Actuator; 21. Clamping member; 211. First clamping portion; 2111. First arc-shaped groove; 212. Second clamping portion; 2121. Second arc-shaped groove; 213. First roller; 214. Second roller; 215. Opening and closing drive member; 22. Mounting base; 23. Drive rod; 24. Limit rod; 25. Telescopic drive member; 26. Rotating drive member. DETAILED DESCRIPTION

[0041] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0045] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0049] When using the rope coring process to collect cores, Figure 1 and Figure 2As shown, the derrick 100 is erected around the wellhead 101, a center pulley 102 is provided on the top of the derrick 100, at least one guide pulley 103 is provided on the side of the derrick 100, one end of the rope 300 is connected to the coring winch 400, and the other end of the rope 300 passes through the guide pulley 103 and the center pulley 102 in sequence and is connected to the salvage 200. When the rope 300 is in a natural vertical state, the salvage 200 is directly opposite to the center of the wellhead 101. At this time, the salvage 200 is in the deployed position. The salvage 200 is lowered so that it can directly face the drill pipe and extend into the drill pipe to connect with the coring device; the salvage 200 is pulled up so that the coring device can be recovered.

[0050] This embodiment provides a rope coring salvage storage device, which can be used to store the salvage 200 when the salvage 200 is in an idle state, preventing the salvage 200 and the rope 300 from occupying the wellhead centerline space, thereby ensuring the normal progress of the drilling operation.

[0051] Specifically, if Figure 2 , Figure 3 and Figure 5 As shown, the rope coring salvage storage device includes an actuator 2 and at least one storage bucket 1. The storage bucket 1 is installed on the derrick 100. The storage bucket 1 is used to store the salvage 200 in an idle state, and the central axis of the storage bucket 1 is parallel to the center line of the wellhead and is arranged at intervals, which effectively prevents the salvage 200 and the rope 300 from occupying the center line space of the wellhead. The actuator 2 is arranged on the derrick 100. The actuator 2 can be sleeved outside the salvage 200. The actuator 2 is actuated to drive the salvage 200 to move between the deployment position and above the storage bucket 1. In other words, the actuator 2 can pull the salvage 200 in the deployment position to the top of the storage bucket 1, and the actuator 2 can also move the salvage 200 above the storage bucket 1 to the deployment position without manual traction, effectively reducing the labor intensity of personnel and reducing the risk of high-altitude operations. By lifting or lowering the salvage device 200 with the rope 300, the salvage device 200 located above the storage bucket 1 can be placed into or removed from the storage bucket 1, which is simple to operate and saves time and effort.

[0052] It should be noted that the distance between the storage bucket 1 and the actuator 2 and the wellhead centerline is greater than the radius of the top drive system 500. This arrangement can prevent the top drive system 500 moving up and down along the wellhead centerline from colliding with the storage bucket 1 and the actuator 2, thereby improving safety during operation.

[0053] Optionally, in this embodiment, if Figure 2-Figure 4 As shown, two storage buckets 1 are provided, and the two storage buckets 1 are symmetrically arranged on both sides of the line between the center of the actuator 2 and the center of the wellhead 101. The actuator 2 can pull the overshot 200 to the top of any one of the two storage buckets 1.

[0054] Continue to refer to Figure 3-Figure 6 The actuator 2 includes a clamping member 21, which can be sleeved on the outside of the salvage device 200. In this embodiment, the salvage device 200 includes an upper rod body and a lower salvage head. The diameter of the upper rod body is smaller than the diameter of the lower salvage head. The upper rod body is connected to a rope 300, and the lower salvage head is connected to a coring device. The clamping member 21 is sleeved on the upper rod body. The clamping member 21 can move above the deployment position and the storage bucket 1 and always remain horizontal, thereby ensuring that the salvage device 200 is always in a vertical state and preventing the salvage device 200 from tilting.

[0055] Specifically, if Figure 6 As shown, the clamping member 21 includes a first clamping portion 211 and a second clamping portion 212. One end of the first clamping portion 211 and one end of the second clamping portion 212 are hinged, and the first clamping portion 211 and the second clamping portion 212 can respectively move around their respective hinged ends in a direction close to or away from each other to be sleeved on the outside of the salvage 200. By opening or closing the first clamping portion 211 and the second clamping portion 212, the sleeve and release of the salvage 200 can be achieved.

[0056] Preferably, the clamping member 21 further includes an opening and closing driving member 215. The output ends of the opening and closing driving member 215 are respectively connected to the first clamping portion 211 and the second clamping portion 212, and the first clamping portion 211 and the second clamping portion 212 can be driven to switch between the open state and the closed state through the opening and closing driving member 215. In this embodiment, the opening and closing driving member 215 can be a cylinder or a gas cylinder, preferably a cylinder.

[0057] For more details, please refer to Figure 6 The first and second clamping parts 211 and 212 are respectively provided with a first arc groove 2111 and a second arc groove 2121 on the sides facing each other. The first and second arc grooves 2111 and 2121 are buckled and sleeved outside the salvage device 200, and there is a gap between the groove walls of the first and second arc grooves 2111 and 2121 and the salvage device 200. In other words, the first and second clamping parts 211 and 212 are not firmly clamped on the side wall of the salvage device 200, and the salvage device 200 can be shaken left and right or moved up and down in the vertical direction in the clamping space formed by the buckling of the first and second arc grooves 2111 and 2121. In this way, when the first clamping member 21 is sleeved on the outside of the salvage 200 and the salvage 200 is pulled from the deployment position to the top of the storage bucket 1, there is no need to additionally control the movement of the first clamping portion 211 and the second clamping portion 212. It is only necessary to control the rope 300 to lower the salvage 200, so that the salvage 200 can be placed in the storage bucket 1. The clamping member 21 can not only play a pulling role when the salvage 200 moves, but also play a guiding and limiting role when the salvage 200 is lowered.

[0058] Furthermore, in order to prevent the salvage device 200 from moving up and down in the vertical direction in the clamping space formed by the first arc groove 2111 and the second arc groove 2121, friction occurs between the side wall of the salvage device 200 and the groove wall of the first arc groove 2111 and the second arc groove 2121, causing wear of the salvage device 200 and the groove wall. 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 groove 2111, the rotation axis of the first rollers 213 is parallel to the horizontal direction, the first arc groove 2111 has a first avoidance opening at the bottom, and the wheel bodies of some first rollers 213 extend out of the first arc groove 2111 through the first avoidance 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 groove 2121, the rotation axis of the second rollers 214 is parallel to the horizontal direction, the second arc groove 2121 has a second avoidance opening at the bottom, and the wheel bodies of some second rollers 214 extend out of the second arc groove 2121 through the second avoidance opening. By converting the sliding friction between the side wall of the salvage device 200 and the groove wall into the rolling friction between the side wall of the salvage device 200 and the rollers, the friction loss is effectively reduced. At the same time, the provision of the first roller 213 and the second roller 214 can also improve the smoothness of the salvage device 200 when moving along the vertical direction.

[0059] Preferably, after the first clamping portion 211 and the second clamping portion 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 body of the salvage device 200 is smaller than the radius of the lower salvage head of the salvage device 200, and the salvage device 200 has sufficient safe movement space, does not require precise control of the coring winch 400, and the salvage 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 driving rod 23, a limiting rod 24 and a telescopic driving member 25. The mounting base 22 is arranged on the derrick 100, the driving rod 23 and the limiting rod 24 are arranged in parallel and at intervals, the two ends of the driving rod 23 are respectively rotatably connected to the clamping member 21 and the mounting base 22, and the two ends of the limiting rod 24 are respectively rotatably connected to the clamping member 21 and the mounting base 22. In other words, the mounting base 22, the driving rod 23, the clamping member 21 and the limiting rod 24 form a "parallelogram"-shaped connecting rod structure, and the clamping member 21 always remains parallel to the mounting base 22, that is, the clamping member 21 is always in a horizontal state. The telescopic driving member 25 is arranged on the mounting base 22, and the telescopic end of the telescopic driving member 25 is rotatably connected to the driving rod 23. The telescopic end is telescopic, and can drive the driving rod 23 to rotate around the mounting base 22, thereby driving the clamping member 21 to move between the deployment position and above the storage barrel 1. In this embodiment, the telescopic driving member 25 is preferably an oil cylinder.

[0061] Further, refer to Figure 3 and Figure 4 In this embodiment, the actuator 2 further includes a rotary drive member 26. The rotary drive member 26 is disposed on the derrick 100, and the output end of the rotary drive member 26 is rotatably connected to the mounting base 22, and can drive the mounting base 22 to rotate relative to the derrick 100. When the center of the wellhead 101, the center of the storage bucket 1, and the center of the clamping member 21 are not collinear, the clamping member 21 needs to be rotated to the top of the storage bucket 1 after being sleeved on the outside of the salvage device 200. At this time, the mounting base 22 can be driven to rotate by the rotary drive member 26, thereby driving the clamping member 21 to rotate. Exemplarily, the rotary drive member 26 is preferably an oil cylinder.

[0062] Alternatively, if Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the storage barrel 1 includes a barrel 11 and a locking structure 12. The barrel 11 is fixed on the derrick 100, and the locking structure 12 includes a pressing plate 121. The side wall of the barrel 11 is provided with an escape groove 111. The pressing plate 121 is rotatably connected to the side wall of the barrel 11. Part of the pressing plate 121 can extend into the escape groove 111 and press the salvage 200 in the barrel 11 against the inner wall of the barrel 11. When the salvage 200 is placed in the storage barrel 1, the locking structure 12 fixes the salvage 200 to the storage barrel 1, thereby preventing the salvage 200 from escaping from the storage barrel 1 and reducing the risk of falling from a high altitude.

[0063] Specifically, two avoidance grooves 111 are symmetrically arranged on both sides of the cylinder 11, and two pressure plates 121 are correspondingly arranged. The two pressure plates 121 are respectively rotatably connected to the same side of the notches of the two avoidance grooves 111, and the free ends of the two pressure plates 121 can extend from the other side of the notches of the corresponding avoidance grooves 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 is provided with a connecting hole. The rod of the fastening screw 122 can penetrate the connecting hole and be screwed to the fastening nut 123. After the salvage 200 is placed in the storage barrel 1, the distance between the two pressure plates 121 can be reduced by screwing the fastening nut 123, so that the two sides of the salvage 200 are clamped by the two pressure plates 121, so that the relative position between the salvage 200 and the storage barrel 1 is fixed.

[0064] More specifically, the storage bucket 1 further comprises a guide ring 13, which is coaxially arranged above the cylinder 11, and the diameter of the guide ring 13 gradually increases in the direction away from the cylinder 11. The guide ring 13 can guide the salvage 200 when the salvage 200 falls into the storage bucket 1, and ensure that the salvage 200 falls smoothly into the cylinder 11. In this embodiment, the distance between the top of the guide ring 13 and the bottom of the clamping member 21 in the vertical direction is 3-5 times the length of the lower salvage head of the salvage 200.

[0065] More specifically, the storage bucket 1 further includes a fixed base 14, which is used to connect the cylinder 11 and the derrick 100. The fixed base 14 is provided in plurality, and the plurality of fixed bases 14 are arranged at intervals along the height direction of the cylinder 11. The plurality of fixed bases 14 can ensure the firmness of the installation of the storage bucket 1, thereby ensuring the safety of the storage bucket 1 after storing the salvage 200.

[0066] It is understandable that when the salvage 200 is not used for a long time, the salvage 200 is stored in the storage bucket 1, the locking structure 12 is closed, and the upper rod of the salvage 200 is clamped; the clamping member 21 of the actuator 2 is located above the storage bucket 1, and the clamping member 21 is closed and sleeved on the upper rod of the salvage 200. At this time, the salvage 200 is protected by the limit of the clamping member 21 and the locking of the locking structure 12, effectively reducing the risk of falling from a high altitude.

[0067] This embodiment also provides a method for storing and processing a rope coring salvage, wherein the rope coring salvage storage device described above is used to store the salvage 200. The method for storing and processing a rope coring salvage comprises the following steps:

[0068] S100, keeping the salvage device 200 aligned with the center of the wellhead 101, and lifting the salvage device 200 from the wellhead 101 to the deployment position by means of the rope 300.

[0069] S200, start the actuator 2, and sleeve the actuator 2 outside the salvage device 200.

[0070] S300 , controlling the actuator 2 to move, driving the salvage device 200 to move from the deployment position to above the storage bucket 1 .

[0071] S400 , keeping the actuator 2 always mounted on the outside of the salvage device 200 , and lowering the salvage device 200 into the storage bucket 1 .

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

[0073] S500 , closing the locking structure 12 to lock the salvage device 200 and the storage bucket 1 .

[0074] Accordingly, when moving the salvage device 200 from the storage bucket 1 to the deployment position, the reverse operation is sufficient. That is:

[0075] First, a person goes up the derrick 100 to release the locking structure 12 on the storage bucket 1 .

[0076] Then, the overshot 200 is lifted by the coring winch 400 so that the lower overshot head of the overshot 200 completely leaves the storage bucket 1 .

[0077] Then, the rotary drive member 26 is started to move the overshot 200 from above the storage bucket 1 to the line between the center of the clamping member 21 and the center of the wellhead 101 .

[0078] Next, the telescopic driving member 25 is started to guide the overshot 200 to the center line of the wellhead.

[0079] Finally, the first clamping portion 211 and the second clamping portion 212 are opened, the salvage device 200 is released, and the clamping member 21 is controlled to return to the original position.

[0080] It is understandable that, because the rope coring process is an intermittent process, it is only necessary to salvage when the coring device has taken the core. Therefore, when drilling is not carried out for a long time, the salvage device 200 is locked by limiting the clamp 21 and locking the locking structure 12. When drilling begins, after salvaging once, it is necessary to carry out drilling for a period of time before salvaging again. During this process, the salvage device 200 is stored in the storage bucket 1 for waiting. At this time, it is not necessary to lock the salvage device 200 by the locking structure 12. It is only necessary to sleeve the clamp 21 on the outside of the salvage device 200 to ensure that the salvage device 200 can be quickly pulled out from the storage bucket 1 during the next salvage. Therefore, once the drilling operation begins, the operator only needs to go up to the derrick 100 to release the locking structure 12 at the beginning, and then only needs to use the clamp 21 to ensure that the salvage device 200 will not fall out of the storage bucket 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 embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A storage device for a rope coring scavenger, characterized in that: The derrick (100) is arranged on a derrick (100), the derrick (100) is erected on the side of a wellhead (101), a central pulley (102) is arranged on the top of the derrick (100), a rope (300) is wound around the central pulley (102), an end of the rope (300) is connected to a salvage device (200), the salvage device (200) comprises an upper rod body and a lower salvage head, the diameter of the upper rod body is smaller than the diameter of the lower salvage head, when the rope (300) is in a naturally vertical state, the salvage device (200) is directly opposite to the center of the wellhead (101), and the salvage device (200) is in a deployed position; the rope coring salvage device storage device comprises: at least one storage bucket (1), the storage bucket (1) being mounted on the derrick (100), the central axis of the storage bucket (1) being parallel to the wellhead centerline and spaced apart; An actuator (2) is arranged on the derrick (100). The actuator (2) can be sleeved outside the salvage (200). When the actuator (2) is actuated, the salvage (200) is driven to move between the deployment position and above the storage bucket (1). When the salvage (200) is located above the storage bucket (1), the rope (300) pulls up or lowers the salvage (200) so that the salvage (200) is placed in or removed from the storage bucket (1).

2. The rope coring salvage device according to claim 1, characterized in that: Two storage buckets (1) are provided, and the two storage buckets (1) are symmetrically arranged on both sides of the line between the center of the actuator (2) and the center of the wellhead (101).

3. The rope coring salvage device according to claim 1, characterized in that: The actuator (2) comprises a clamping member (21), and the clamping member (21) can be sleeved outside the salvage device (200). The clamping member (21) can move above the deployment position and the storage bucket (1) and always remain horizontal.

4. The rope coring salvage device according to claim 3, characterized in that: The clamping member (21) comprises a first clamping portion (211) and a second clamping portion (212); one end of the first clamping portion (211) and one end of the second clamping portion (212) are hinged; the first clamping portion (211) and the second clamping portion (212) can respectively move around their respective hinged ends in directions approaching or moving away from each other so as to be sleeved outside the salvage device (200).

5. The rope coring salvage device according to claim 4, characterized in that: A first arc groove (2111) and a second arc groove (2121) are respectively recessed on one side of the first clamping portion (211) and the second clamping portion (212) facing each other. The first arc groove (2111) and the second arc groove (2121) are snap-fitted and sleeved outside the salvage device (200). There is a gap between the groove walls of the first arc groove (2111) and the second arc groove (2121) and the salvage device (200).

6. The rope coring salvage device according to claim 5, characterized in that: A plurality of first rollers (213) are arranged on the first clamping portion (211), and the plurality of first rollers (213) are arranged at intervals along the circumference of the first arc-shaped groove (2111), and the rotation axes of the first rollers (213) are parallel to the horizontal direction, and a first avoidance opening is provided at the bottom of the first arc-shaped groove (2111), and a portion of the wheel body of the first roller (213) extends out of the first arc-shaped groove (2111) through the first avoidance opening; A plurality of second rollers (214) are arranged on the second clamping portion (212), and the plurality of second rollers (214) are arranged at intervals along the circumference of the second arc-shaped groove (2121); the rotation axis of the second roller (214) is parallel to the horizontal direction; a second avoidance opening is provided at the bottom of the second arc-shaped groove (2121), and a portion of the wheel body of the second roller (214) extends out of the second arc-shaped groove (2121) through the second avoidance opening; The distance between the wheel body surfaces of the first roller (213) and the second roller (214) and the salvage device (200) is greater than or equal to zero.

7. The rope coring salvage device according to claim 3, characterized in that: The actuator (2) further comprises a mounting base (22), a driving rod (23), a limiting rod (24) and a telescopic driving member (25); the mounting base (22) is arranged on the derrick (100); the driving rod (23) and the limiting rod (24) are arranged in parallel and at intervals; the two ends of the driving rod (23) are respectively rotatably connected to the clamping member (21) and the mounting base (22); the two ends of the limiting rod (24) are respectively rotatably connected to the clamping member (21) and the mounting base (22); the telescopic driving member (25) is arranged on the mounting base (22); the telescopic end of the telescopic driving member (25) is rotatably connected to the driving rod (23); the telescopic end is telescopic, and can drive the driving rod (23) to rotate around the mounting base (22).

8. The rope coring salvage device according to claim 7, characterized in that: The actuator (2) further comprises a rotary drive member (26), wherein the rotary drive member (26) is arranged on the derrick (100), and an output end of the rotary drive member (26) is rotatably connected to the mounting base (22) and is capable of driving the mounting base (22) to rotate relative to the derrick (100).

9. The rope coring salvage device storage device according to any one of claims 1 to 8, characterized in that: The storage barrel (1) comprises a cylinder (11) and a locking structure (12); the cylinder (11) is fixed on the derrick (100); the locking structure (12) comprises a pressure plate (121); a side wall of the cylinder (11) is provided with an escape groove (111); the pressure plate (121) is rotatably connected to the side wall of the cylinder (11); a portion of the pressure plate (121) can extend into the escape groove (111) and press the salvage device (200) in the cylinder (11) against the inner wall of the cylinder (11).

10. A method for storing and processing a rope coring salvage device, characterized in that: The rope coring salvage storage device according to any one of claims 1 to 9 is used to store the salvage (200), and the rope coring salvage storage processing method comprises the following steps: S100, keeping the salvage device (200) aligned with the center of the wellhead (101), and lifting the salvage device (200) from the wellhead (101) to a deployment position by means of a rope (300); S200, starting the actuator (2), and sleeve-mounting the actuator (2) outside the salvage device (200); S300, controlling the actuator (2) to move, so as to drive the salvage device (200) to move from the deployment position to above the storage bucket (1); S400: Keep the actuator (2) always mounted outside the salvage device (200), and lower the salvage device (200) into the storage bucket (1) via the rope (300).

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