Automatic double core-making operation system and method of lifting clamp

Abstract

This invention discloses an automatic double-core-filling operation system and method, relating to the field of oil and gas drilling technology. The operation system includes: a hydraulic clamp with a clamping hole in the center for the core filler to pass through, capable of clamping the core filler within the clamping hole; a top drive connected to the hydraulic clamp for driving the hydraulic clamp up and down; and a core filler transport platform located below the hydraulic clamp in the working state, capable of moving the core filler out or into the wellhead. This system automatically performs double-core-filling clamp operations, avoiding manual operation and completely solving the problems of slippage and drill pipe damage. It also addresses the issues of manual double-core clamps being unautomatable and unable to be centered, thereby automating the entire tubing handling system. The operation method, based on the aforementioned system, avoids manual operation, completely solves the problems of slippage and drill pipe damage, and addresses the issues of manual double-core clamps being unautomatable and unable to be centered, thus automating the entire tubing handling system.

Description

Technical Field

[0001] This invention relates to the field of oil and gas drilling technology, specifically to an automatic double-core-filling operation system and method. Background Technology

[0002] As shale oil and gas resources are gradually exploited, shallow oil and gas resources can no longer meet the demand. The need for exploiting deep and horizontal oil and gas reservoirs has led to the continuous extension and weight increase of drill pipes. If the currently configured manual or hydraulic slips are used, there are problems such as insufficient clamping under light loads and failure to clamp properly under heavy loads, resulting in slippage and damage to the drill pipe body.

[0003] Therefore, for the exploitation of deep and horizontal oil and gas reservoirs, the double manual lifting clamp operation method is commonly used on-site. The manual lifting clamp directly contacts the drill pipe joint step surface and bears the weight of the entire drill string, eliminating problems such as slippage and damage to the drill pipe. However, this method requires manual replacement of the two manual lifting clamps in the dangerous area at the wellhead, which is labor-intensive and carries high safety risks. Summary of the Invention

[0004] To address the technical problem of manually replacing two manual slippers in dangerous areas at the wellhead during the exploitation of deep and horizontal oil and gas reservoirs, this invention provides an automatic slipper double-core-repair operation system and method. This system can automatically perform double-core-repair slipper operations, completely solving the problems of slipper slippage and drill pipe damage. It also solves the problems of manual double slippers not being automated and not being able to be centered, thereby achieving automation of the entire tubing handling system.

[0005] This invention is achieved through the following technical solution:

[0006] In a first aspect, the present invention provides an automatic lifting clamp dual core replenishment operation system, comprising: a hydraulic lifting clamp with a clamping hole in the middle for the core replenishment to pass through, and capable of clamping the core replenishment in the clamping hole; a top drive connected to the hydraulic lifting clamp for driving the hydraulic lifting clamp to move up and down; and a core replenishment operating table located below the hydraulic lifting clamp in the working state, and capable of moving the core replenishment out or into the wellhead.

[0007] The automatic lifting clamp dual-core filling operation system provided by the present invention has a hydraulic lifting clamp that can automatically clamp or release the core, and connect the drill pipe through the core. The hydraulic lifting clamp is driven to move up and down by a drive, thereby moving the drill pipe up and down. At the same time, a core filling rotating platform is provided, which can automatically move the core to or out of the clamping hole of the hydraulic lifting clamp and the wellhead position, and then replace the two cores back and forth through the hydraulic lifting clamp and the core filling rotating platform.

[0008] Therefore, the automatic double-core lifting system provided by this invention can automatically realize double-core lifting operation, avoid manual operation, completely solve the problems of slippage and damage to drill pipe, and solve the problems of manual double-core lifting not being automated and not being able to be centered, thereby realizing the automation of the entire tubing processing system.

[0009] In an optional embodiment, the hydraulic jack is equipped with multiple support portions, one end of which is hinged to the hydraulic jack. The support portions can tilt the hydraulic jack backward via a lifting ring, thereby restricting the movement of the mandrel away from the top drive. The rotation of the support portions controls the movement of the mandrel away from the top drive, thus controlling whether the hydraulic jack is connected to the drill pipe.

[0010] In an optional embodiment, the hydraulic lifting clamp is connected to the top drive via a lifting ring. The two ends of the lifting ring are respectively hinged to the corresponding hydraulic lifting clamp and the top drive to achieve the connection of the hydraulic lifting clamp and enable the hydraulic lifting clamp to translate to one side of the driving direction.

[0011] In an optional embodiment, the top drive includes a guide rail and a linear motion module, the linear motion module being drivenly connected to the guide rail, and the linear motion module being able to move along the length of the guide rail to drive the hydraulic lifting clamp to move up and down.

[0012] In an optional embodiment, the core loading platform includes: a core loading and unloading mechanism for loading and unloading cores; and an extension mechanism, which, together with the core loading and unloading mechanism, drives the core loading and unloading mechanism to move from the core storage position to the wellhead, so that the core loading and unloading mechanism can be moved by the extension of the extension mechanism.

[0013] In an optional embodiment, the core loading and unloading mechanism includes: two clamping arms, with one end of the two clamping arms hinged to each other; and a clamping driver for driving the two clamping arms to move away from or towards each other, so as to clamp the core by the relative approach of the two clamping arms and release the core by the relative distance of the two clamping arms.

[0014] In an optional embodiment, the extension mechanism includes: a rotating column capable of rotating about a preset axis; a linear motion module, which is connected to the rotating column and is capable of moving along the length of the rotating column; an extension linkage group, one end of which is hinged to the linear motion module and the other end of which is hinged to the core loading and unloading mechanism; and an extension driver, one end of which is hinged to the linear motion module and the other end of which is hinged to the extension linkage group; wherein the extension driver is a linear driver, and when the extension driver extends, the core loading and unloading mechanism moves away from the rotating column.

[0015] The rotation of the rotating column drives the extension connecting rod assembly to rotate along the preset axis, and the connecting rod assembly drives the core loading and unloading mechanism to move. At the same time, the linear movement module can drive the extension connecting rod assembly to move up and down, so that the core loading and unloading mechanism can rise, rotate and extend, thereby driving the core on the core loading and unloading mechanism to move to the center of the wellbore.

[0016] In an optional embodiment, the extension linkage group includes two series-connected four-bar linkages to ensure the stability of the extension mechanism during the extension process, thereby ensuring the positional accuracy of the core replenishment and placement mechanism.

[0017] Secondly, the present invention provides an automatic double-core-repairing method for lifting clamps, based on the aforementioned automatic double-core-repairing system for lifting clamps, including a single-core-joining process, wherein the single-core-joining process includes the following steps:

[0018] S10. The lower core is clamped by a hydraulic lifting clamp, and the core is tilted forward to open it and connect the center hole to the drill rod.

[0019] S11. Move the drill pipe forward along the catwalk and insert it into the hydraulic lifting clamp core. Lift the hydraulic lifting clamp until the drill pipe is vertical.

[0020] S12. Lower the drill pipe into the lower drill pipe and use a drill biter to fasten the upper drill pipe;

[0021] S13. The lower core is clamped and opened by the core loading and unloading mechanism and moved to the core storage station.

[0022] S14. The top drive moves the hydraulic lifting clamp downward, allowing the drill pipe to be placed into the well.

[0023] The drilling process includes the following steps:

[0024] S15. The relay core is moved to the hydraulic clamping position by the core loading and unloading mechanism.

[0025] S16. The relay core is clamped by a hydraulic lifting clamp and moved up to the height of the second-floor platform.

[0026] S17. The intermediate drill rod is clamped by the two-layer pipe laying machine, and the intermediate drill rod is moved into the hydraulic lifting clamp core and closed.

[0027] S18. Lower the intermediate drill pipe and connect it to the lower drill pipe. Use a drill bit to connect it to the upper drill pipe.

[0028] S19. The lower core is clamped and opened by the core loading and unloading mechanism and moved to the core storage station.

[0029] S20, the hydraulic hoist descends and lowers the intermediate drill rod, and the intermediate core is placed into the rotary table to support the intermediate drill rod;

[0030] S21. After the hydraulic jack releases the relay core, it moves upward and repeats steps S10 to S14 or S15 to S21 until the drill pipe is placed into the well.

[0031] The automatic double-core-filling clamp operation method provided by this invention features a hydraulic clamp that automatically grips or releases the core filler. The core filler connects to the drill pipe, and a drive mechanism moves the hydraulic clamp up and down, thereby moving the drill pipe up and down. Simultaneously, a core filler rotating platform automatically moves the core filler to or out of the hydraulic clamp's path and the wellhead. The two automatic hydraulic clamps are then interchanged via the hydraulic clamp and the core filler rotating platform. Therefore, this method automates the drilling operation with a double-core-filling clamp, eliminating manual operation and completely solving the problems of slippage and drill pipe damage. It also addresses the issues of manual double clamps being unautomatable and unable to be centered, thus automating the entire tubing handling system.

[0032] In an optional implementation, a drilling start-up process is also included, which comprises the following steps:

[0033] S22. Lower the unloaded hydraulic hoist door to the wellhead and clamp the upper core to drive the upper drill pipe upward;

[0034] S23. When the hydraulic hoist reaches the second platform, the intermediate core is opened and sent to the wellhead through the core-filling operation platform.

[0035] S24. When the intermediate core reaches the wellhead position, the intermediate drill pipe is clamped by the intermediate core, and the hydraulic lifting chuck moves down so that the intermediate core can bear the weight of the drill pipe.

[0036] S25. The core loading and unloading mechanism of the core loading platform is withdrawn from the wellhead position and the drill string is uncoupled.

[0037] S26. After the uncoupling action is completed, the hydraulic clamp opens, and the pipe laying machine clamps the drill rod and stores it in the root box;

[0038] S27. Repeat steps S22 to S26 until the drill rod is stored in the root box.

[0039] It can automatically remove the drill pipe from the well and automatically perform the tripping operation of the double core lifting chuck, avoiding manual operation and completely solving the problems of slippage and drill pipe damage, thereby realizing the automation of the entire tubing handling system.

[0040] Compared with the prior art, the present invention has the following advantages and beneficial effects.

[0041] 1. The automatic double-core lifting system provided by this invention features a hydraulic lifting clamp that can automatically clamp or release the core, and connect the core to the drill pipe. The top drive moves the hydraulic lifting clamp up and down, thereby moving the drill pipe up and down. A core-operating platform is also provided, which can automatically move the core to or out of the hydraulic lifting clamp and wellhead position. The two cores are then replaced back and forth using the hydraulic lifting clamp and the core-operating platform. Therefore, the system can automatically perform double-core lifting clamp operations, avoiding manual operation and completely solving the problems of slippage and drill pipe damage. It also solves the problems of manual double-lifting clamps being unautomatable and unable to be centered, thus achieving automation of the entire tubing handling system.

[0042] 2. The automatic double-core-filling clamp operation method provided by the present invention, based on the aforementioned system, can automatically realize the drilling operation of the double-core-filling clamp, avoiding manual operation, completely solving the problems of slippage and damage to the drill pipe, and solving the problems of manual double-core clamps being unable to be automated and unable to be centered, thereby realizing the automation of the entire tubing string processing system. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0044] In the attached diagram:

[0045] Figure 1 This is a schematic diagram of the automatic lifting clamp dual-core replenishment operation system according to an embodiment of the present invention;

[0046] Figure 2 This is a schematic diagram of the structure of the hydraulic lifting clamp according to an embodiment of the present invention;

[0047] Figure 3 This is a schematic diagram of the main structure of the core-filling operation stage according to an embodiment of the present invention;

[0048] Figure 4 This is a top view of the core-filling operation table according to an embodiment of the present invention;

[0049] Figure 5 This is a schematic diagram of the connection between the hydraulic jack and the drill pipe during the drilling and tripping processes according to an embodiment of the present invention.

[0050] Figure 6 This is a schematic diagram of the structure of the working system in one state during the drilling and tripping processes according to an embodiment of the present invention;

[0051] Figure 7 This is a schematic diagram of another state of the working system during the drilling and tripping processes according to an embodiment of the present invention.

[0052] The attached diagram shows the markings and corresponding component names:

[0053] 100-Hydraulic lifting clamp, 110-Clamping hole, 120-Support part, 130-Lifting ring;

[0054] 200 - Top drive, 210 - Guide rail, 220 - Linear movement module;

[0055] 300-Core replenishment turntable, 310-Core replenishment picking and placing mechanism, 311-Clamping arm, 312-Clamping driver, 320-Extension mechanism, 321-Rotating column, 322-Linear movement module, 323-Extension linkage group, 324-Extension driver.

[0056] 420 - Rotary turntable, 430 - Pipe laying machine. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0058] 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.

[0059] In the description of the embodiments of this application, the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", 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 application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this application and to simplify the description, and are not intended to indicate or imply that the device or component 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 this application.

[0060] Example 1

[0061] Combination Figure 1This embodiment provides an automatic double-core-filling operation system, including: a hydraulic lifting clamp 100, with a clamping hole 110 in the middle for the core filler to pass through, and capable of clamping the core filler in the clamping hole 110; a top drive 200, connected to the hydraulic lifting clamp 100 through a lifting ring (130), for driving the hydraulic lifting clamp 100 to move up and down; and a core filler operating platform 300, located below the hydraulic lifting clamp 100 on the drilling platform surface in the working state, and capable of moving the core filler out or into the wellhead position.

[0062] Combination Figure 1 It is understood that the top drive 200 includes a guide rail 210 and a linear motion module 220. The linear motion module 220 is connected to the guide rail 210 and can move along the length of the guide rail 210 to drive the hydraulic hoist 100 to move up and down. For the linear motion module 220, it is only necessary to be able to move along the length of the guide rail 210; there are no excessive restrictions on its own mechanism. In this embodiment, a drill pipe lifting module used in this technical field is adopted, and this embodiment will not provide a detailed description.

[0063] Combination Figure 2 Specifically, the hydraulic lifting clamp 100 is equipped with multiple support portions 120, one end of which is hinged to the hydraulic lifting clamp 100. The support portion 120 can tilt the hydraulic lifting clamp backward via a lifting ring, thereby restricting the movement of the core feeder away from the top drive 200. The rotation of the support portion 120 controls the movement of the core feeder away from the top drive 200, thus controlling whether the hydraulic lifting clamp 100 is connected to the drill pipe.

[0064] In this embodiment, the hydraulic lifting clamp 100 is connected to the top drive 200 via a lifting ring 130. The two ends of the lifting ring 130 are respectively hinged to the corresponding hydraulic lifting clamp 100 and the top drive 200 to achieve the connection of the hydraulic lifting clamp 100 and enable the hydraulic lifting clamp 100 to translate to one side of the driving direction.

[0065] Combination Figure 3 The core loading platform 300 includes: a core loading and unloading mechanism 310 for loading and unloading cores; and an extension mechanism 320, which, together with the core loading and unloading mechanism 310, drives the core loading and unloading mechanism 310 to move from the core storage position to the wellhead, so that the core loading and unloading mechanism 310 can be moved by the extension of the extension mechanism 320.

[0066] Combination Figure 4The core loading and unloading mechanism 310 includes: two clamping arms 311, with one end of the two clamping arms 311 hinged to each other; and a clamping driver 312, which drives the two clamping arms 311 to move away from each other or move closer together, so as to clamp the core by moving closer together and release the core by moving away from each other.

[0067] Combination Figure 3 and Figure 4 It is understood that the extension mechanism 320 includes: a rotating column 321, which can rotate around a preset axis; a linear motion module 322, which is connected to the rotating column 321 and can move along the length of the rotating column 321; an extension linkage group 323, one end of which is hinged to the linear motion module 322 and the other end of which is hinged to the core loading and unloading mechanism 310; and an extension driver 324, one end of which is hinged to the linear motion module 322 and the other end of which is hinged to the extension linkage group 323; wherein, the extension driver 324 is a linear driver, and when the extension driver 324 extends, the core loading and unloading mechanism 310 moves away from the rotating column 321.

[0068] The rotating column 321 is typically connected to a rotary actuator (hydraulic motor or electric motor) via a reduction mechanism and rotates along its own axis under the drive of the rotary actuator. The linear motion model can be a linear motion block adapted to the rotating column 321, such as a slider that moves up and down along the rotating column 321 via a linear actuator, or a moving module with its own drive wheel assembly. The corresponding drive wheel is locked in the inner groove on the outer side of the rotating column 321, and moves along the axial direction of the rotating column 321 by the rotation of the drive wheel.

[0069] It is known that the rotation of the rotating column 321 drives the extension connecting rod assembly to rotate along the preset axis, and the connecting rod assembly drives the core loading and unloading mechanism 310 to move. At the same time, the linear movement module 220 can drive the extension connecting rod assembly 323 to move up and down, so that the core loading and unloading mechanism 310 can rise, rotate and extend, thereby driving the core on the core loading and unloading mechanism 310 to move to the center of the wellbore.

[0070] Furthermore, the extension linkage 323 includes two series-connected four-bar linkages to ensure the stability of the extension mechanism 320 during the extension process, thereby ensuring the positional accuracy of the core replenishment mechanism 310.

[0071] In summary, the automatic clamping double core-filling operation system provided in this embodiment has a hydraulic clamping clamp 100 that can automatically clamp or release the core-filling device. The core-filling device is connected to the drill pipe, and the top drive drives the hydraulic clamping clamp 100 to move up and down, thereby driving the drill pipe to move up and down. At the same time, a core-filling device rotating platform 300 is provided, which can automatically move the core-filling device to or out of the clamping hole of the hydraulic clamping clamp 100 and the wellhead position. Then, the two core-filling devices can be replaced back and forth by the hydraulic clamping clamp 100 and the core-filling device rotating platform 300.

[0072] Therefore, the automatic double-core lifting system provided in this embodiment can automatically realize double-core lifting operation, avoid manual operation, completely solve the problems of slippage and damage to drill pipe, and solve the problems of manual double-core lifting not being automated and not being able to be centered, thereby realizing the automation of the entire tubing processing system.

[0073] Example 2

[0074] This embodiment provides an automatic double-core-repairing method for drilling, based on the automatic double-core-repairing system for drilling described in Embodiment 1, including a single-core connection process, a drilling down process, and a drilling up process.

[0075] The order acceptance process includes the following steps:

[0076] S10. The lower compensation core is clamped by the hydraulic lifting clamp 100 and connected to the lower drill rod.

[0077] Combination Figure 5 Specifically, when the lower core is removed, the operating system is in its initial state, with the hydraulic chuck 100 in a high position and the drill rod on the ground. At this time, the top drive 200 drives the hydraulic chuck 100 downward, the lifting ring 130 tilts forward to move the hydraulic chuck 100 forward, and the catwalk moves upward to send the upper drill rod to the platform. Then, the hydraulic chuck 100 opens the lower core, aligning the center hole of the lower core with the axial direction of the lower drill rod.

[0078] S11. Move the drill pipe forward along the catwalk and insert it into the hydraulic lifting clamp. Lift the hydraulic lifting clamp until the drill pipe is vertical.

[0079] Specifically, the catwalk sends the drill pipe forward and inserts it into the lower core inside the hydraulic jack 100. Finally, the top drive 200 moves the hydraulic jack 100 up until the drill pipe is vertical.

[0080] S12. Lower the drill pipe into the lower drill pipe and use a drill biter to fasten the drill pipe.

[0081] That is, after the lower core is connected to the lower drill pipe, the drill pipe is lowered to the lower drill pipe by moving the top drive 200 and then snapped together, and then the iron driller snaps it up.

[0082] S13. The lower core is clamped and opened by the core loading and unloading mechanism 310, and the lower core is moved to the core storage station.

[0083] S14. The top drive moves the hydraulic lifting clamp 100 downward, allowing the drill pipe to be placed into the well.

[0084] The drilling process includes the following steps:

[0085] S15. The relay core is moved to the clamping position of the hydraulic lifting clamp 100 by the core loading and unloading mechanism 310.

[0086] Combination Figure 6 It should be understood that at this time, the jack descends to the height of the drill pipe on the platform, the lower core bears the load of the drill string, the intermediate core is clamped in the core picking and placing mechanism 310, and the extension mechanism 320 extends the intermediate core to the clamping position of the hydraulic jack 100.

[0087] S16. The relay core is clamped by the hydraulic lifting clamp 100 and moved up to the height of the second-floor platform.

[0088] S17. The intermediate drill rod is clamped by the two-layer pipe laying machine, and the intermediate drill rod is moved into the hydraulic lifting clamp and closed.

[0089] In other words, the pipe laying machine 430 hands over the drill rod to the hydraulic lifting clamp 100, which drives the intermediate core to close, and then moves downward under the drive of the top drive 200 to realize the lowering of the drill rod and the coupling.

[0090] S18. Lower the intermediate drill pipe and connect it to the lowered drill pipe.

[0091] Specifically, after the joint is aligned, the top drive 200 drives the hydraulic hoist 100 to descend and place the intermediate drill pipe. The drill table surface iron driller then fastens the drill pipe joint to achieve the connection between the intermediate drill pipe and the lower drill pipe.

[0092] S19. The lower core is clamped and opened by the core loading and unloading mechanism 310, and the lower core is moved to the core storage station.

[0093] Specifically, at this time, the extension mechanism 320 moves the core removal and placement mechanism 310 to the wellhead, and the core removal and placement mechanism 310 grabs the lower core at the wellhead. Then, the hydraulic hoist 100 and the core removal and placement mechanism 310 lift up one after the other and open the lower core. Finally, the extension mechanism 320 moves the core removal and placement mechanism 310 backward with the core, and finally moves the core to the core storage position.

[0094] S20, hydraulic lifting clamp 100 descends, and lowers the intermediate drill rod, placing the intermediate core into the rotary table 420 to support the intermediate drill rod. Figure 7 ).

[0095] S21. After the hydraulic jack 100 releases the relay core, it moves upward and repeats steps S10 to S14 or S15 to S21 until the upper drill pipe is placed into the well to complete the drilling process.

[0096] The drilling process includes the following steps:

[0097] S22. Lower the unloaded hydraulic lifting clamp 100 to the wellhead and clamp the upper filling core to drive the drill pipe upward.

[0098] Specifically, in the initial state of the tripping-out process, the drill string is at the wellhead, supported by the upper core, while the hydraulic chuck 100 is unloaded, and the intermediate core is held within the core loading and unloading mechanism 310. During tripping-out, the support portion 120 of the hydraulic chuck 100 opens, and the top drive 200 lowers the hydraulic chuck 100 together. After gripping the upper core, the hydraulic chuck 100 closes, and then the top drive 200 lifts the hydraulic chuck 100, thereby raising the drill string.

[0099] S23. When the hydraulic hoist 100 reaches the second platform, the intermediate core is opened and sent to the wellhead through the core-complementing platform 300.

[0100] Specifically, when the hydraulic hoist 100 reaches the second platform, the core loading and unloading mechanism 310 on the drilling platform opens the intermediate core and sends it to the wellhead through the extension mechanism 320.

[0101] S24. When the intermediate core reaches the wellhead position, the intermediate drill pipe is clamped by the intermediate core, and the hydraulic jack 100 moves down to support the weight of the drill pipe.

[0102] Specifically, after the intermediate core filler reaches the wellhead position, the intermediate core filler closes, and the core filler retrieval mechanism 310 and the hydraulic hoist 100 descend successively, causing the intermediate core filler to contact the rotary table 420. At this time, the drill string load is borne by the intermediate core filler.

[0103] S25, the core loading and unloading mechanism 310 of the core loading platform 300 exits the wellhead position and uncouples the drill string.

[0104] S26. After the uncoupling action is completed, the hydraulic clamp 100 moves upward, the pipe laying machine 430 clamps the drill rod, the hydraulic clamp 100 drives the core to open, and the pipe laying machine 430 stores the drill rod in the root box.

[0105] Specifically, after the uncoupling action is completed, the top drive 200 drives the hydraulic lifting clamp 100 to move upward to disengage the male thread of the upper drill rod. The hydraulic lifting clamp 100 then hands the drill rod over to the pipe laying machine 430, which lays the drill rod into the root box.

[0106] S27. Repeat steps S22 to S26 until the drill rod is stored in the support box.

[0107] After the drill pipe handover is completed, the hydraulic jack 100 descends to the platform, the lifting ring 130 tilts back to place the lower core into the transfer platform, the hydraulic jack 100 opens and moves upward to detach from the lower core, and then floats to a vertical position, thus ending the drilling process.

[0108] The automatic double-core-filling clamp operation method provided in this embodiment allows the hydraulic clamp 100 to automatically clamp or release the core filler, which is connected to the drill pipe. The top drive moves the hydraulic clamp 100 up and down, thereby moving the drill pipe up and down. Simultaneously, the core filler rotating platform 300 automatically moves the core filler to or out of the hydraulic clamp 100 and the wellhead position, allowing for the repeated replacement of the two core fillers via the hydraulic clamp 100 and the core filler rotating platform 300. Therefore, it can automatically realize the drilling, tripping, and single-pipe connection operations of the double-core-filling clamp, avoiding manual operation, completely solving the problems of slippage and drill pipe damage, and resolving the issues of the inability to automate and center the manual double clamp, thus achieving automation of the entire tubing handling system.

[0109] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic lifting clamp dual-core replenishment operation system, characterized in that, The system comprises: a hydraulic elevator (100) provided with a clamping hole (110) for passing through a core, and capable of clamping the core in the clamping hole (110); a top drive (200) connected with the hydraulic elevator (100) and used for driving the hydraulic elevator (100) to move up and down; a core operation platform (300) located below the hydraulic elevator (100) in a working state and capable of moving the core out of or into a wellhead, comprising: a core taking and placing mechanism (310) used for taking and placing the core, comprising two clamping arms (311) and a clamping driver (312), the two clamping arms (311) being hingedly connected at opposite ends, and the clamping driver (312) being used for driving the two clamping arms (311) to move away from or close to each other; an extension mechanism (320) in transmission connection with the core taking and placing mechanism (310) and used for driving the core taking and placing mechanism (310) to move from a core storage position to the wellhead, comprising a rotating column (321), a linear movement module (322), an extension linkage (323) and an extension driver (324), the rotating column (321) being capable of rotating around a preset axis, the linear movement module (322) being in transmission connection and arranged on the rotating column (321) and capable of moving along the length direction of the rotating column (321), the extension linkage (323) being hingedly connected at one end with the linear movement module (322) and at the other end with the core taking and placing mechanism (310), and the extension driver (324) being hingedly connected at one end with the linear movement module (322) and at the other end with the extension linkage (323); wherein the extension driver (324) is a linear driver, and when the extension driver (324) extends, the core taking and placing mechanism (310) moves in a direction away from the rotating column (321).

2. The automatic hanging clamp dual core makeup system of claim 1, wherein, The hydraulic elevator (100) is provided with a plurality of support portions (120) hingedly connected at one end with the hydraulic elevator (100); wherein the support portions (120) are capable of rotating into the clamping hole (110) to limit the core from moving in a direction away from the top drive (200).

3. The automatic hanging dual core make-up system of claim 1, wherein, The hydraulic elevator (100) is connected with the top drive (200) through a lifting ring (130), and the lifting ring (130) is hingedly connected at two ends with the corresponding hydraulic elevator (100) and top drive (200) respectively.

4. The automatic hanging dual core make-up system of claim 1, wherein, The top drive (200) comprises a guide rail (210) and a linear movement module (220), the linear movement module (220) is in transmission connection with the guide rail (210), and the linear movement module (220) is capable of moving along the length direction of the guide rail (210).

5. The automatic hanging double core make-up system according to claim 1, wherein, The extension linkage (323) comprises two series-connected four-bar mechanisms.

6. A method for automatic double core-making operation of a hanging clamp, characterized in that, The automatic elevator double-core operation system according to any one of claims 1-5 comprises a single-string receiving process and a drilling process, and the single-string receiving process comprises the following steps: S10, clamping a lower core by the hydraulic elevator (100) and opening the core to connect the central hole with a drill pipe by forward tilting. S11, the catwalk forwards the drill pipe, the drill pipe is sent into the hydraulic elevator core supplement, the hydraulic elevator is lifted to the drill pipe vertical; S12, the drill pipe is lowered into the lower drill pipe, and the iron driller is used to make up the drill pipe; S13, the lower core supplement is clamped and opened by the core supplement taking and placing mechanism (310), and the lower core supplement is moved to the core supplement storage station; S14, the top drive drives the hydraulic elevator (100) to move down, so that the drill pipe is put into the well; The lower drilling process includes the following steps: S15, the relay core supplement is moved to the hydraulic elevator (100) clamping station by the core supplement taking and placing mechanism (310); S16, the relay core supplement is clamped by the hydraulic elevator (100), and the relay core supplement is driven to move up to the second floor height; S17, the relay drill pipe is clamped by the second floor pipe rack, and the relay drill pipe is moved into the hydraulic elevator core supplement and closed; S18, the relay drill pipe is lowered, and the relay drill pipe is connected with the lower drill pipe, and the iron driller is used to make up; S19, the lower core supplement is clamped and opened by the core supplement taking and placing mechanism (310), and the lower core supplement is moved to the core supplement storage station; S20, the hydraulic elevator (100) moves down, and the relay drill pipe is lowered, and the relay core supplement is put into the turntable (420) to support the relay drill pipe; S21, the hydraulic elevator (100) releases the relay core supplement and moves up, and steps S10-S14 or S15-S21 are repeated until the drill pipe is put into the well.

7. The automatic hanging of a double core-making operation method according to claim 6, characterized in that, The tripping process also includes the following steps: S22, the empty hydraulic elevator (100) door is moved down to the wellhead, and the upper core supplement is clamped to drive the upper drill pipe to move up; S23, when the hydraulic elevator (100) reaches the second floor, the relay core supplement is opened and sent to the wellhead by the core supplement running platform (300); S24, when the relay core supplement reaches the wellhead position, the relay drill pipe is clamped by the relay core supplement, and the hydraulic elevator (100) moves down to bear the weight of the drill pipe by the relay core supplement; S25, the core supplement taking and placing mechanism (310) of the core supplement running platform (300) exits the wellhead position, and the drill string is disconnected; S26, after the disconnection action is completed, the hydraulic elevator (100) is opened, the pipe rack (430) clamps and stores the drill pipe to the stand box; S27, steps S22-S26 are repeated until the drill pipe is stored in the stand box.

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