An off-line root system and method

Abstract

The present application relates to a kind of off-line root system and method, establish root device, two-layer platform finger beam mechanism, intermediate finger beam mechanism and power mouse hole;Establish root device, two-layer platform finger beam mechanism, intermediate finger beam mechanism are arranged from top to bottom in derrick, and power mouse hole is arranged in derrick platform;Establish root device is used to hoist drill pipe or oil casing and is connected in power mouse hole to form drill pipe stand or oil casing stand, and drill pipe stand is stored in two-layer platform finger beam mechanism, or oil casing stand is stored in intermediate finger beam mechanism;Two-layer platform finger beam mechanism and intermediate finger beam mechanism can be turned to let position or operating position, its beneficial effect is, on the basis of realizing that root establishment procedure is completely parallel with main operation flow, effectively eliminate the interference hidden danger in the process of pipe column removal and transport, significantly improve the comprehensive efficiency of drilling operation and the security of automatic operation.

Description

Technical Field

[0001] This invention relates to the field of oil and gas drilling technology, and in particular to an offline root system and method. Background Technology

[0002] During oil drilling and workover operations, frequent connection and disconnection of drill pipe or casing is required. To improve operational efficiency, single drill pipes or casings are usually pre-connected into "standers" consisting of two or three pipe strings, so that they can be quickly moved as a whole and connected / disconnected during tripping operations.

[0003] In traditional drilling operations, the establishment of a single tubing string relies entirely on the wellhead and top drive system. Specifically, in wellhead operation mode, the top drive chuck picks up a single tubing string from the drill table, lifts and moves it to the center of the wellhead, and engages and engages it with the lower tubing string inside the wellhead. This method requires the establishment of the string to occupy core wellhead operation time, forcing the interruption of drilling or tripping operations in the main drilling flow, severely restricting overall drilling efficiency. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an offline root system and method, which solves the technical problem that the prior art requires the occupation of the wellhead and affects the drilling operation efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] On one hand, the present invention provides an offline root establishment system, including a root establishment device and a rat hole; the root establishment device is set on the derrick; the rat hole is set on the derrick platform; the root establishment device is used to hoist drill pipe or oil casing into the rat hole to form drill pipe root or oil casing root, and to transfer and store the drill pipe root or oil casing root at the target location.

[0009] Optionally, it also includes a second-layer platform finger beam mechanism and an intermediate finger beam mechanism; the root-establishing device, the second-layer platform finger beam mechanism, and the intermediate finger beam mechanism are arranged on the derrick from top to bottom; the second-layer platform finger beam mechanism is used to store drill pipe root stands, and the intermediate finger beam mechanism is used to store oil casing root stands.

[0010] Optionally, the root device includes a main beam assembly, a crossbeam assembly, a trolley assembly, a hoist drive assembly, and a hoist; the main beam assembly is fixedly installed on the derrick, the crossbeam assembly is movably installed on the main beam assembly, the trolley assembly is movably installed on the crossbeam assembly, the hoist drive assembly is located on the trolley assembly, and the hoist and the hoist drive assembly are connected to drive the hoist to rotate and lift; the direction of movement of the crossbeam assembly, the direction of movement of the trolley assembly, and the direction of lifting of the hoist are perpendicular to each other.

[0011] Optionally, the main beam assembly includes a first support beam and a first guide rail; the first support beam is fixedly installed on the derrick, the first guide rail is fixedly installed on the first support beam, and the first guide rail extends along the length direction of the first support beam; the crossbeam assembly is movably supported on the first guide rail.

[0012] Optionally, the crossbeam assembly includes a second support beam, a second guide rail, and a crossbeam trolley; the end of the second support beam is fixed to the crossbeam trolley, and the crossbeam trolley is movably supported on the first guide rail; the second guide rail is fixedly installed on the second support beam and extends along the length of the second support beam; the trolley assembly is movably supported on the second guide rail.

[0013] Optionally, the first support beam is provided with a first rack extending along its length; the crossbeam trolley includes a support, a first roller assembly, a first driver and a first gear; the support is movably supported on the first guide rail by the first roller assembly, the first driver is mounted on the support, and the first driver is connected to the first rack by the first gear to drive the first gear to rotate and mesh with the first rack to move the support along the first guide rail.

[0014] Optionally, a second rack extending along its length is provided on the second support beam; the trolley assembly includes a bracket, a second roller assembly, a second driver, and a second gear; the bracket is movably supported on the second guide rail via the second roller assembly, the second driver is mounted on the bracket, and the second driver is connected to the second rack via the second gear to drive the second gear to rotate and mesh with the second rack, thereby moving the bracket along the second guide rail; the hanging clamp drive assembly is mounted on the bracket.

[0015] Optionally, the hoist drive assembly includes a winch, a slewing drive, a cantilever assembly, and a fixed pulley assembly; the winch is fixedly mounted on the top of the bracket, the slewing drive is mounted on the bottom of the bracket, the cantilever assembly is mounted on the slewing drive, and the fixed pulley assembly is mounted on the bottom of the cantilever assembly; the drive cable of the winch is wound around the pulley assembly, and the free end of the drive cable is connected to the hoist, so as to realize the lifting and lowering of the hoist by winding and unwinding the drive cable.

[0016] Optionally, the cantilever assembly includes an integrally formed first cantilever and second cantilever; the fixed pulley assembly includes a first fixed pulley and a second fixed pulley; the top of the first cantilever is mounted on a rotary drive; the first fixed pulley and the second fixed pulley are respectively mounted on the bottom of the first cantilever and the second cantilever, and the cable passes through the first cantilever and is sequentially wound around the first fixed pulley and the second fixed pulley.

[0017] On the other hand, the present invention also provides a root establishment method for the above-mentioned offline root establishment system, for establishing roots in a dual-drill-rod configuration, comprising the following steps:

[0018] S1. The middle finger beam mechanism flips to the clearance position, and the second-floor finger beam mechanism flips to the working position; the crossbeam assembly and the trolley assembly drive the lifting clamp to the horizontal target position, the lifting clamp drive assembly drives the lifting clamp to rotate to the target angle, and then drives the lifting clamp to descend to the handover position;

[0019] S2. The chuck closes and grabs the first drill pipe. The chuck drive assembly drives the chuck to rise to the target height. The crossbeam assembly and the trolley assembly move the first drill pipe horizontally above the power mouse hole. The chuck drive assembly drives the chuck to lower the first drill pipe into the power mouse hole to the locking height.

[0020] S3, the crossbeam assembly and the trolley assembly drive the jack to move to the horizontal target position, the jack drive assembly drives the jack to rotate and adjust the angle, and lowers the jack to the handover position; the jack closes the door to grab the second drill pipe, the jack drive assembly drives the jack to rise to the target height, and the crossbeam assembly and the trolley assembly drive the second drill pipe to move horizontally above the power mouse hole;

[0021] S4. The hoist drive assembly drives the hoist to lower the second drill rod to dock with the first drill rod. The iron driller connects the first and second drill rods to form a double drill rod support. The hoist drive assembly drives the hoist to rise to the storage height. The crossbeam assembly and the pulley assembly drive the hoist to move the double drill rod support horizontally to the target storage position of the second-floor platform finger beam mechanism.

[0022] Optionally, for establishing a root for a three-drill-pipe system, the steps also include:

[0023] S5. After the double drill pipe foundation is formed, the chuck drive assembly continues to lower the double drill pipe into the power mouse hole to the engagement height; the crossbeam assembly and the pulley assembly drive the chuck to move to the horizontal target position, the chuck drive assembly drives the chuck to rotate and adjust the angle, and lowers the chuck to the handover position; the chuck closes and grabs the third drill pipe, the chuck drive assembly drives the chuck to rise to the target height, and the crossbeam assembly and the pulley assembly drive the third drill pipe to move horizontally above the power mouse hole;

[0024] S6. The lifting chuck drive assembly drives the lifting chuck to lower the third drill rod to connect with the double drill rod support. The iron driller connects the third drill rod and the double drill rod support to form a three-drill rod support. The lifting chuck drive assembly drives the lifting chuck to rise to the storage height. The crossbeam assembly and the pulley assembly drive the lifting chuck to move the three-drill rod support horizontally to the target storage position of the second-floor platform finger beam mechanism.

[0025] On the other hand, the present invention also provides a root establishment method for the above-mentioned offline root establishment system, for establishing roots in oil casing, including the following steps:

[0026] S1. The second-floor platform finger beam mechanism flips to the clearance position, and the middle finger beam mechanism flips to the working position; the crossbeam assembly and the trolley assembly drive the lifting clamp to the horizontal target position, the lifting clamp drive assembly drives the lifting clamp to rotate to the target angle, and then drives the lifting clamp to descend to the handover position;

[0027] S2. The hoist closes and grabs the first oil casing. The hoist drive assembly drives the hoist to rise to the target height. The crossbeam assembly and the trolley assembly move the first oil casing horizontally to above the power mouse hole. The hoist drive assembly drives the hoist to lower the first oil casing into the power mouse hole to the locking height.

[0028] S3, the crossbeam assembly and the trolley assembly drive the lifting clamp to the horizontal target position, the lifting clamp drive assembly drives the lifting clamp to rotate and adjust the angle, and lowers the lifting clamp to the handover position; the lifting clamp closes the door and grabs the second oil casing, the lifting clamp drive assembly drives the lifting clamp to rise to the target height, and the crossbeam assembly and the trolley assembly drive the second oil casing to move horizontally above the power mouse hole;

[0029] S4. The lifting clamp drive assembly drives the lifting clamp to lower the second oil casing to dock with the first oil casing. The iron drill upper buckle connects the first oil casing and the second oil casing to form the oil casing support. The lifting clamp drive assembly drives the lifting clamp to rise to the storage height. The crossbeam assembly and the pulley assembly drive the lifting clamp to move the oil casing support horizontally to the target storage position of the middle finger beam mechanism.

[0030] (III) Beneficial Effects

[0031] The beneficial effects of this invention are:

[0032] The present invention provides an offline root establishment system, which sets up the root establishment device, the second-layer platform finger beam mechanism, and the middle finger beam mechanism from top to bottom on the derrick, and sets the rat hole on the derrick platform. This allows the root establishment device to hoist drill pipe or oil casing and connect them at the rat hole to form drill pipe or oil casing root. The entire root establishment process is completely separated from wellhead operations, realizing the parallel operation of the root establishment process and the main drilling process, effectively shortening the wellhead waiting time and improving the overall drilling efficiency. Meanwhile, since both the second-level finger beam mechanism and the intermediate finger beam mechanism can be flipped to either the clearance position or the working position, and the second-level finger beam mechanism is used to store drill pipe standoffs while the intermediate finger beam mechanism is used to store casing standoffs, when the system switches between drill pipe standoff operation and casing standoff operation, the non-operating finger beam mechanism can be flipped to the clearance position to make room for pipe string movement, while the operating finger beam mechanism flips to the working position to receive the corresponding standoff. This avoids spatial interference between the pipe string movement path and the idle finger beam mechanism, preventing collision damage to the drill pipe or casing standoff end threads and the finger beam mechanism itself, and ensuring the continuous and smooth hoisting and movement of the standoff assembly. Compared with existing technologies, this technology effectively eliminates the potential for interference during pipe string movement while achieving complete parallelism between the standoff assembly process and the main operation flow, significantly improving the overall efficiency of drilling operations and the safety of automated operation. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of an offline root system according to Embodiment 1 of the present invention;

[0034] Figure 2 This is a schematic diagram of the intermediate finger beam mechanism in Embodiment 1 of the present invention located at the yielding position;

[0035] Figure 3 This is a schematic diagram of the two-layer platform finger beam mechanism in Embodiment 1 of the present invention located in the yielding position;

[0036] Figure 4 This is a schematic diagram of the root-establishing device according to Embodiment 1 of the present invention;

[0037] Figure 5 This is a schematic diagram of the crossbeam trolley installed on the main beam assembly according to Embodiment 1 of the present invention;

[0038] Figure 6 This is a schematic diagram of the trolley assembly according to Embodiment 1 of the present invention;

[0039] Figure 7 This is a schematic diagram of the cantilever assembly and fixed pulley assembly according to Embodiment 1 of the present invention;

[0040] Figure 8 This is a schematic diagram of the two-layer platform finger beam mechanism of Embodiment 1 of the present invention;

[0041] Figure 9 This is a schematic diagram of the intermediate finger beam mechanism of Embodiment 1 of the present invention.

[0042] [Explanation of Labels in the Attached Image]

[0043] 1: Root assembly; 11: Main beam assembly; 111: First support beam; 112: First guide rail; 113: First rack; 121: Second support beam; 122: Second guide rail; 123: Crossbeam trolley; 124: Support; 125: Second rack; 13: Trolley assembly; 131: Bracket; 132: Second driver; 14: Lifting clamp drive assembly; 141: Winch; 142: Rotary drive; 143: First cantilever; 144: Second cantilever; 145: First fixed pulley; 146: Second fixed pulley; 15: Lifting clamp; 151: Lifting ring;

[0044] 2: Second-level platform finger beam mechanism; 21: First base; 22: First finger beam body;

[0045] 3: Intermediate finger beam mechanism; 31: Second base; 32: Second finger beam body. Detailed Implementation

[0046] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0047] Example 1:

[0048] like Figures 1-3As shown, this embodiment provides an offline root establishment system, including a root establishment device 1, a two-tiered platform finger beam mechanism 2, an intermediate finger beam mechanism 3, and a rat hole. The root establishment device 1, the two-tiered platform finger beam mechanism 2, and the intermediate finger beam mechanism 3 are arranged sequentially from top to bottom on the derrick, while the rat hole is independently located on the derrick platform. The root establishment device 1, as the core transport and hoisting component, is used to grab a single drill pipe or a single oil casing pipe and hoist it to the rat hole position for jointing one pipe at a time, forming a drill pipe stand or oil casing stand composed of multiple pipe strings. The drill pipe stand formed by the jointing is ultimately transferred by the root establishment device 1 and stored in the two-tiered platform finger beam mechanism 2, while the oil casing stand formed by the jointing is transferred by the root establishment device 1 and stored in the intermediate finger beam mechanism 3. To accommodate the switching of operating conditions between two different pipe string types and to avoid spatial interference during transport, both the two-tiered platform finger beam mechanism 2 and the intermediate finger beam mechanism 3 are configured as movable structures capable of independently flipping to a yielding position or an operating position. When one set of finger beam mechanisms is in the working position to receive the corresponding support root, the other set of finger beam mechanisms flips to the yielding position, thereby providing sufficient operating space for the hoisting and moving operation of the support root device 1.

[0049] Specifically, by setting the root establishment device 1, the second-layer platform finger beam mechanism 2, and the intermediate finger beam mechanism 3 from top to bottom on the derrick, and setting the rat hole on the derrick platform, the root establishment device 1 can hoist the drill pipe or oil casing and connect them at the rat hole to form the drill pipe root or oil casing root. The entire root establishment process is completely separated from the wellhead operation, realizing the parallel operation of the root establishment process and the main drilling process, effectively shortening the wellhead waiting time and improving the overall drilling efficiency. Meanwhile, since both the second-level finger beam mechanism 2 and the intermediate finger beam mechanism 3 can be flipped to either the clearance position or the working position, and the second-level finger beam mechanism 2 is used to store drill pipe standoffs and the intermediate finger beam mechanism 3 is used to store casing standoffs, when the system switches between drill pipe standoff operation and casing standoff operation, the non-operating finger beam mechanism can be flipped to the clearance position to make room for pipe string movement, while the operating finger beam mechanism flips to the operating position to receive the corresponding standoff. This avoids spatial interference between the pipe string movement path and the idle finger beam mechanism, preventing collision damage to the drill pipe or casing standoff end threads and the finger beam mechanism itself, and ensuring the continuous and smooth hoisting and movement of the standoff device 1. Compared with existing technologies, this technology effectively eliminates the interference risks during pipe string movement while achieving complete parallelism between the standoff process and the main operation flow, significantly improving the overall efficiency of drilling operations and the safety of automated operation.

[0050] Furthermore, such as Figure 4As shown, the root assembly 1 includes a main beam assembly 11, a crossbeam assembly, a trolley assembly 13, a hoist drive assembly 14, and a hoist 15. The main beam assembly 11 serves as the foundation support frame and is fixedly installed on the main structure of the derrick. The crossbeam assembly is movably mounted on the main beam assembly 11 and can reciprocate along a first horizontal direction. The trolley assembly 13 is movably mounted on the crossbeam assembly and can reciprocate along a second horizontal direction perpendicular to the first horizontal direction. The hoist drive assembly 14 is integrally mounted on the trolley assembly 13 and moves synchronously with it. The hoist 15 is connected to the output end of the hoist drive assembly 14. The hoist drive assembly 14 drives the hoist 15 to achieve rotation around a vertical axis and lifting / lowering along the vertical direction. Thus, through the movement of the crossbeam assembly on the main beam assembly 11, the movement of the trolley assembly 13 on the crossbeam assembly, and the lifting and lowering drive of the lifting clamp 15 by the lifting clamp drive assembly 14, the lifting clamp 15 can move flexibly in three-dimensional space. Moreover, the movement direction of the crossbeam assembly, the movement direction of the trolley assembly 13, and the lifting and lowering direction of the lifting clamp 15 are perpendicular to each other, forming a rectangular coordinate transport system.

[0051] Furthermore, such as Figure 4 and Figure 5 As shown, the main beam assembly 11 includes a first support beam 111 and a first guide rail 112. The first support beam 111 serves as the main frame, and its two ends are fixedly installed on the corresponding load-bearing nodes of the derrick by welding or bolting. The first guide rail 112 is fixedly installed on the upper or side surface of the first support beam 111, and the extension direction of the first guide rail 112 is consistent with the length direction of the first support beam 111. The crossbeam assembly is movably supported on the first guide rail 112 by a traveling component provided at its end, thereby realizing the overall translation of the crossbeam assembly relative to the main beam assembly 11.

[0052] Furthermore, such as Figure 4 and Figure 5 As shown, the crossbeam assembly includes a second support beam 121, a second guide rail 122, and a crossbeam trolley 123. The crossbeam trolley 123 is fixedly mounted on the end of the second support beam 121, and the crossbeam trolley 123 rolls or slides with the first guide rail 112, serving as a movement actuator for the crossbeam assembly on the main beam assembly 11. The second guide rail 122 is fixedly mounted on the second support beam 121, and its extension direction is consistent with the length direction of the second support beam 121. The trolley assembly 13 is movably supported on the second guide rail 122 by its own roller assembly, thereby realizing the lateral translation of the trolley assembly 13 along the crossbeam assembly.

[0053] Preferably, this embodiment employs a gear and rack mechanism to ensure smooth movement and positioning accuracy under heavy load conditions. Specifically, as shown... Figure 4 and Figure 5 As shown, in the main beam assembly 11, a first rack 113 extending along its length is provided on the first support beam 111. The crossbeam trolley 123 specifically consists of a support 124, a first roller assembly, a first driver, and a first gear. The support 124 is rolled and supported on the first guide rail 112 by the first roller assembly. The first driver (such as a hydraulic motor or servo motor) is fixedly mounted on the support 124. The first gear is connected to the output shaft of the first driver and meshes with the first rack 113. When the first driver is working, it drives the first gear to rotate, and the meshing of the gear with the first rack 113 drives the second support beam 121 to move smoothly along the first guide rail 112 via the crossbeam trolley 123.

[0054] Furthermore, such as Figure 4 and Figure 6 As shown, in the crossbeam assembly, a second rack 125 extending along its length is provided on the second support beam 121. The trolley assembly 13 includes a bracket 131, a second roller assembly, a second driver 132, and a second gear. The bracket 131 is rotatably supported on the second guide rail 122 by the second roller assembly. The second driver 132 is mounted on the bracket 131, and the second gear is connected to the output shaft of the second driver 132 and meshes with the second rack 125. The hanger drive assembly 14 is fixedly mounted on the bracket 131. When the second driver 132 drives the second gear to rotate, the second gear meshes with the second rack 125, thereby driving the trolley assembly 13 and the hanger drive assembly 14 to move together along the second guide rail 122.

[0055] Furthermore, such as Figure 4 and Figure 6 As shown, the hoist drive assembly 14 includes a winch 141, a rotary drive 142, a cantilever assembly, and a fixed pulley assembly. The winch 141 is fixedly mounted on the top of the bracket 131 and provides power for lifting the hoist 15. The rotary drive 142 is fixedly mounted on the bottom of the bracket 131, and its output shaft extends vertically downwards to provide power for rotating the hoist 15. The cantilever assembly is integrally mounted on the output end of the rotary drive 142 and can rotate synchronously around the vertical axis with the output shaft of the rotary drive 142. The fixed pulley assembly is mounted on the bottom of the cantilever assembly and is used to change the transmission direction of the drive cable. The drive cable of the winch 141 is wound around the fixed pulley assembly, and the free end of the drive cable is fixedly connected to the lifting clamp 15. The lifting clamp 15 can be raised and lowered in the vertical direction by the winch 141 winding and releasing the drive cable. The cantilever assembly can be rotated by the rotary drive 142, which can drive the lifting clamp 15 to rotate around the vertical axis, thereby adjusting the gripping angle of the lifting clamp 15 to adapt to the pipe column with different placement postures.

[0056] Specifically, such as Figure 4 and Figure 7As shown, the cantilever assembly includes an integrally formed first cantilever 143 and second cantilever 144. The first cantilever 143 and second cantilever 144 are fixedly connected at a preset angle to form an integral cantilever structure, ensuring the overall structural strength and load-bearing capacity of the cantilever assembly. The fixed pulley assembly includes a first fixed pulley 145 and a second fixed pulley 146. The first fixed pulley 145 is installed at the bottom end of the first cantilever 143, and the second fixed pulley 146 is installed at the bottom end of the second cantilever 144. The transmission cable passes through the cable channel provided inside the first cantilever 143, and is sequentially wound around the first fixed pulley 145 and the second fixed pulley 146, finally extending downwards to connect with the top of the lifting clamp 15. The arrangement of the double fixed pulleys optimizes the stress state of the transmission cable and improves the stability and safety of the lifting clamp 15. In this embodiment, the first fixed pulley 145 and the second fixed pulley 146 are located on the same horizontal plane, and the cable is wound clockwise around the first fixed pulley 145 and counterclockwise around the second fixed pulley 146.

[0057] Furthermore, the lifting clamp 15 is an automatic hydraulic lifting clamp with automatic opening and closing functions. It can automatically complete the gripping and releasing of the pipe column under the command of the control system without manual intervention. The lifting clamp 15 can reliably clamp the outer wall of the pipe column, ensuring that the pipe column will not fall off during the hoisting process. The top of the lifting clamp 15 is equipped with a lifting ring 51, and the free end of the transmission cable is fixedly connected to the lifting ring 51.

[0058] Furthermore, such as Figure 8 As shown, the second-level platform finger beam mechanism 2 includes a first base 21, a first tilting actuator, and a first finger beam body 22. The first base 21 is fixedly installed on the second-level platform of the derrick by bolts, serving as the installation base. The first tilting actuator is fixedly installed on the first base 21, and the first finger beam body 22 is rotatably installed on the first base 21 and connected to the output end of the first tilting actuator. The first tilting actuator can drive the first finger beam body 22 to tilt around the horizontal axis of the first base 21 within a preset angle range, allowing the first finger beam body 22 to switch between the working position and the yielding position. When the second-level platform finger beam mechanism 2 tilts to the working position, the first finger beam body 22 is in a horizontal state, with its free end extending inward toward the derrick to receive the drill pipe erection from the root erection device 1. When the second-level platform finger beam mechanism 2 tilts to the yielding position, the first finger beam body 22 tilts upward to a vertical state, with its free end facing upward toward the derrick, freeing up the working space in the middle of the derrick and avoiding any interference with the action of the root erection device 1 in hoisting the oil casing erection.

[0059] Furthermore, such as Figure 9As shown, the intermediate finger beam mechanism 3 includes a second base 31, a second tilting actuator, and a second finger beam body 32. The second base 31 is fixedly installed on the derrick by bolts, located directly below the second-level finger beam mechanism 2, and its installation height matches the storage height of the casing and tubing support. The second tilting actuator is fixedly installed on the second base 31, and the second finger beam body 32 is rotatably installed on the second base 31 and connected to the output end of the second tilting actuator. The second tilting actuator can drive the second finger beam body 32 to tilt around the horizontal axis of the second base 31 within a preset angle range, allowing the second finger beam body 32 to switch between the working position and the yielding position. When the intermediate finger beam mechanism 3 is flipped to the working position, the second finger beam body 32 is in a horizontal state, with its free end extending towards the inside of the derrick to receive the oil casing erector transferred from the root erector 1; when the intermediate finger beam mechanism 3 is flipped to the yielding position, the second finger beam body 32 is flipped upward to a vertical state, with its free end facing the top of the derrick, freeing up the working space in the middle of the derrick, and avoiding any interference with the action of the root erector 1 in hoisting the drill pipe erector.

[0060] Furthermore, in this embodiment, the rat hole is a powered rat hole, used for temporary storage, lifting, and straightening of the tubing string. It includes a rat hole body, a straightening mechanism, a lifting base, and a base drive mechanism. The rat hole body is installed on the derrick platform, with its top opening flush with the platform surface. The straightening mechanism is installed at the top of the rat hole body. The lifting base is movably installed inside the rat hole body. The base drive mechanism is installed on the outside of the rat hole body and connected to the lifting base to drive the lifting base to vertically lift and lower along the rat hole body. The rooting device 1 inserts the tubing string into the rat hole body. The straightening mechanism straightens the tubing string, which then enters the rat hole body and abuts against the lifting base. The base drive mechanism is activated to drive the lifting base to lower the tubing string into the rat hole body to the engagement height.

[0061] Example 2:

[0062] This embodiment provides a root establishment method for an offline root establishment system, which is implemented using the offline root establishment system described in Embodiment 1. For root establishment in a dual-drill-pipe system, the method includes the following steps:

[0063] S1. The intermediate finger beam mechanism 3 flips to the clearance position, and the second-level platform finger beam mechanism 2 flips to the working position. The crossbeam assembly and the trolley assembly 13 drive the lifting chuck 15 to move to the horizontal target position. The lifting chuck drive assembly 14 drives the lifting chuck 15 to rotate to the target angle, and then drives the lifting chuck 15 to descend to the handover position. Specifically, the control system first issues a command to flip the intermediate finger beam mechanism 3 to the clearance position to avoid obstructing the subsequent pipe string movement; at the same time, it controls the second-level platform finger beam mechanism 2 to flip to the working position to prepare for the subsequent storage of drill pipe roots. Subsequently, the crossbeam assembly in the root-establishing device 1 moves along the first horizontal direction on the first guide rail 112, and the trolley assembly 13 moves along the second horizontal direction on the second guide rail 122. The two work together to precisely position the lifting chuck 15 at the horizontal target position at the handover position on the drill platform. Then, the rotary drive 142 in the lifting chuck drive assembly 14 drives the cantilever assembly to rotate in the horizontal plane, driving the lifting chuck 15 to rotate to the target angle consistent with the axis of the first drill pipe to be grasped. Finally, the winch 141 releases the transmission cable to drive the hoist 15 to descend vertically to the handover position.

[0064] S2. The chuck 15 closes and grabs the first drill pipe. The chuck drive assembly 14 drives the chuck 15 to rise to the target height. The crossbeam assembly and the pulley assembly 13 move the first drill pipe horizontally above the power rodhole. The chuck drive assembly 14 then drives the chuck 15 to lower the first drill pipe into the power rodhole to the engagement height. Specifically, after the chuck 15 closes and grabs the first drill pipe at the handover position, the winch 141 begins to wind up the transmission cable, driving the chuck 15 and the gripped first drill pipe to rise vertically to a pre-set safe transport height. This height is sufficient for the bottom of the first drill pipe to pass over other equipment on the derrick platform during horizontal movement. Subsequently, the crossbeam assembly and the pulley assembly 13 work together again, moving smoothly along the first guide rail 112 and the second guide rail 122, moving the first drill pipe horizontally to a position directly above the power rodhole. Once the horizontal position is aligned, the winch 141 releases the transmission cable again, driving the chuck 15 to lower the first drill pipe vertically and smoothly into the power rodhole. When the drill rod is lowered to the preset engagement height inside the power rod hole, the lowering stops. At this point, the upper end of the first drill rod is at a predetermined height position to facilitate subsequent docking operations, and is kept upright by the clamping mechanism inside the power rod hole.

[0065] S3, the crossbeam assembly and pulley assembly 13 move the chuck 15 to the horizontal target position. The chuck drive assembly 14 rotates the chuck 15 to adjust its angle and lowers it to the handover position. The chuck 15 closes its door to grab the second drill pipe. The chuck drive assembly 14 drives the chuck 15 to rise to the target height. The crossbeam assembly and pulley assembly 13 move the second drill pipe horizontally above the power rod hole. Specifically, after the first drill pipe enters the hole, the crossbeam assembly and pulley assembly 13 in the root-building device 1 again move the chuck 15 back to the horizontal target position of the handover station on the drilling platform. During the return process, the rotary drive 142 in the chuck drive assembly 14 drives the chuck 15 to rotate and adjust its angle, so that the direction of the chuck 15 returns to the handover posture consistent with the axis of the second drill pipe. The winch 141 releases the cable to lower the chuck 15 to the handover position, and the chuck 15 closes its door to grab the second drill pipe. After securing the rod firmly, the winch 141 rewinds the cable, driving the jack 15 and the second drill rod to rise to the target transport height. Then, the crossbeam assembly and the trolley assembly 13 work together to move the second drill rod horizontally to the top of the power mouse hole.

[0066] S4. The hoist drive assembly 14 drives the hoist 15 to lower the second drill rod to mate with the first drill rod. The iron driller then connects the first and second drill rods to form a double drill rod support. The hoist drive assembly 14 drives the hoist 15 to rise to the storage height. The crossbeam assembly and pulley assembly 13 move the hoist 15 horizontally to the target storage position of the double drill rod support on the second-floor platform finger beam mechanism 2. Specifically, the winch 141 in the hoist drive assembly 14 releases the transmission cable, driving the hoist 15 to smoothly and vertically lower the second drill rod, ensuring that the male threaded connector at the lower end of the second drill rod accurately aligns with the female threaded connector at the upper end of the first drill rod inside the power rat hole. At this time, the iron driller, located on the drill platform, extends and clamps at the connector position, performing the tightening operation to securely connect the first and second drill rods into one unit, forming a double drill rod. After the tightening is completed, the iron driller retracts. Subsequently, winch 141 continued to release the cable, driving the hoist 15 to further lower the connected double drill rod into the power rat hole until the upper end joint of the double drill rod reached the preset engagement height again, waiting to connect with the next pipe string.

[0067] Furthermore, for the establishment of the three-drill-pipe root, after the establishment of the two-drill-pipe root as described above, the process continues, specifically including the following steps:

[0068] S5. After the double drill pipe foundation is established, the chuck drive assembly 14 continues to lower the double drill pipe into the power mouse hole to the engagement height. The crossbeam assembly and pulley assembly 13 drive the chuck 15 to move to the horizontal target position. The chuck drive assembly 14 drives the chuck 15 to rotate and adjust its angle, and then lowers the chuck 15 to the handover position. The chuck 15 closes its door to grab the third drill pipe. The chuck drive assembly 14 drives the chuck 15 to rise to the target height. The crossbeam assembly and pulley assembly 13 drive the third drill pipe to move horizontally above the power mouse hole. Specifically, after the double drill pipe is lowered, the crossbeam assembly and pulley assembly 13 in the foundation device 1 drive the chuck 15 back to the horizontal target position of the handover station on the drilling platform. After the chuck drive assembly 14 drives the chuck 15 to rotate and adjust its angle, the winch 141 releases the cable to lower the chuck 15 to the handover position. The chuck 15 closes its door to grab the third drill pipe. After securing the rod firmly, the winch 141 rewinds the cable, driving the jack 15 and the third drill rod to rise to the target transport height. Then, the crossbeam assembly and the trolley assembly 13 work together to move the third drill rod horizontally to the top of the power mouse hole.

[0069] S6. The hoist drive assembly 14 drives the hoist 15 to lower the third drill pipe to connect with the double drill pipe. The iron driller then connects the third drill pipe and the double drill pipe to form a three-drill-pipe stand. The hoist drive assembly 14 drives the hoist 15 to rise to the storage height. The crossbeam assembly and pulley assembly 13 drive the hoist 15 to move the three-drill-pipe stand horizontally to the target storage position of the second-floor platform finger beam mechanism 2. Specifically, the winch 141 releases the transmission cable to drive the hoist 15 to smoothly and vertically lower the third drill pipe, ensuring that the lower end of the third drill pipe is accurately aligned with the upper end of the double drill pipe stand inside the power rat hole. The iron driller then completes the connection to form the three-drill-pipe stand. After the connection is complete, the hoist 15 remains in the closed gripping state, and the winch 141 rewinds the cable to drive the hoist 15 to lift the entire three-drill-pipe stand from the power rat hole to the storage height, which is sufficient to allow the bottom of the three-drill-pipe stand to safely pass over the derrick platform during horizontal movement. Subsequently, the crossbeam assembly and the pulley assembly 13 work together to move the lifting clamp 15 and the three-drill rod upright horizontally, transferring the three-drill rod upright to the second-floor platform finger beam mechanism 2, which has been flipped to the working position, and accurately placing it into the target storage location. The second-floor platform finger beam mechanism 2 closes and locks, completing the process of establishing and storing a single three-drill rod upright.

[0070] It should be noted that in this embodiment, the power rod hole used can store a double drill rod support. If a triple drill rod support is used, and a power rod hole that can only store a single drill rod is employed, the number of power rod holes can be increased. A first power rod hole and a second power rod hole are set up. The first drill rod is stored in the first power rod hole, and the second drill rod is stored in the second power rod hole. The third drill rod is then connected to either the first or second drill rod to form a double drill rod support. Finally, the double drill rod support is connected to the remaining first or second drill rod to form a triple drill rod support. The specific process will not be described in detail here.

[0071] Example 3:

[0072] This embodiment provides a root establishment method for an offline root establishment system, which is implemented using the offline root establishment system described in Embodiment 1. It is specifically for establishing roots in a tubing and casing system. In this embodiment, "tubing and casing" is a collective term for both the tubing and the casing. The steps include:

[0073] S1. The second-level platform finger beam mechanism 2 flips to the yielding position, and the middle finger beam mechanism 3 flips to the working position. The crossbeam assembly and the trolley assembly 13 drive the lifting clamp 15 to the horizontal target position. The lifting clamp drive assembly 14 drives the lifting clamp 15 to rotate to the target angle, and then drives the lifting clamp 15 to descend to the handover position. Specifically, since the current work objective is to establish the oil casing pipe support, the control system first issues a command to flip the second-level platform finger beam mechanism 2 to the yielding position; at the same time, it controls the middle finger beam mechanism 3 to flip to the working position, ready to receive the oil casing pipe support to be established. Subsequently, the crossbeam assembly and the trolley assembly 13 in the support device 1 work together to precisely position the lifting clamp 15 at the horizontal target position of the oil casing pipe handover station. The slewing drive 142 in the lifting clamp drive assembly 14 drives the cantilever assembly and the lifting clamp 15 to rotate to the target angle consistent with the axis of the first oil casing pipe to be grasped. Then, the winch 141 releases the transmission cable to drive the lifting clamp 15 to descend vertically to the handover position.

[0074] S2. The clamp 15 closes and grabs the first oil casing. The clamp drive assembly 14 drives the clamp 15 to rise to the target height. The crossbeam assembly and the trolley assembly 13 move the first oil casing horizontally above the power rodent hole. The clamp drive assembly 14 then drives the clamp 15 to lower the first oil casing into the power rodent hole to the locking height. Specifically, after the clamp 15 closes and grabs the first oil casing at the handover position, the winch 141 winds up the transmission cable, driving the clamp 15 and the clamped first oil casing to rise vertically to the preset safe transport height. Subsequently, the crossbeam assembly and the trolley assembly 13 move smoothly along the first guide rail 112 and the second guide rail 122, horizontally transporting the first oil casing to a position directly above the power rodent hole. Once the horizontal position is aligned, the winch 141 releases the transmission cable, driving the clamp 15 to vertically and smoothly lower the first oil casing into the power rodent hole. When the lowering reaches the preset engagement height inside the power rodent hole, the lowering stops. At this point, the upper end of the first oil casing is at a predetermined height position to facilitate subsequent docking operations, and is kept upright by the clamping mechanism inside the power rodent hole.

[0075] S3, the crossbeam assembly and pulley assembly 13 drive the hoist 15 to the horizontal target position. The hoist drive assembly 14 drives the hoist 15 to rotate and adjust its angle, and lowers the hoist 15 to the handover position. The hoist 15 closes its door to grab the second oil casing. The hoist drive assembly 14 drives the hoist 15 to rise to the target height. The crossbeam assembly and pulley assembly 13 drive the second oil casing to move horizontally above the power rodhole. Specifically, after the first oil casing is inserted into the hole, the crossbeam assembly and pulley assembly 13 in the rooting device 1 drive the hoist 15 back to the horizontal target position of the oil casing handover station. During the return process, the slewing drive 142 in the hoist drive assembly 14 drives the hoist 15 to rotate and adjust its angle, so that the direction of the hoist 15 is restored to the handover posture consistent with the axis of the second oil casing. The winch 141 releases the cable to lower the hoist 15 to the handover position, and the hoist 15 closes its door to grab the second oil casing. After securing the cable, the winch 141 rewinds the cable, driving the hoist 15 and the second oil casing to rise to the target transport height. Then, the crossbeam assembly and the pulley assembly 13 work together to move the second oil casing horizontally to directly above the power mouse hole.

[0076] S4. The hoist drive assembly 14 drives the hoist 15 to lower the second oil casing to dock with the first oil casing. The steel driller then connects the first and second oil casings to form a double oil casing. The hoist drive assembly 14 continues to lower the double oil casing into the power rat hole to the docking height. Specifically, the winch 141 releases the transmission cable to drive the hoist 15 to smoothly and vertically lower the second oil casing, ensuring that the lower end of the second oil casing accurately docks with the upper end of the first oil casing inside the power rat hole. At this time, the steel driller on the drill platform extends and clamps at the joint position, performing the upper docking tightening operation to securely connect the first and second oil casings into one unit, forming the oil casing support. After the upper docking is completed, the steel driller retracts. Subsequently, the crossbeam assembly and the pulley assembly 13 work together to move the hoist 15 and the oil casing support horizontally, transferring the oil casing support to the intermediate finger beam mechanism 3, which has been flipped to the working position, and accurately placing it into the target storage position. The intermediate finger beam mechanism 3 closes and locks, completing the process of establishing and storing a single oil casing support.

[0077] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0078] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a manufacturable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0079] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is 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," or "beneath" the second feature can mean that the first feature is 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.

[0080] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0081] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An offline root system, characterized in that, include: Establish the root device (1) and the mouse hole; The root device (1) is set on the derrick; the rat hole is set on the derrick platform; Establish a root device (1) for hoisting drill rods or oil casings to connect in the rat hole to form drill rod roots or oil casing roots, and to move and store the drill rod roots or oil casing roots at the target location.

2. The offline root system as described in claim 1, characterized in that, Also includes: The second-level platform finger beam mechanism (2) and the middle finger beam mechanism (3); The root device, the second-layer platform finger beam mechanism, and the intermediate finger beam mechanism are installed on the derrick from top to bottom; The second-level platform finger beam mechanism (2) is used to store the drill rod uprights, and the middle finger beam mechanism (3) is used to store the oil casing uprights.

3. The offline root system establishment method as described in claim 1, characterized in that, The root assembly (1) includes the main beam assembly (11), the crossbeam assembly, the trolley assembly (13), the hanger drive assembly (14), and the hanger (15). The main beam assembly (11) is fixedly installed on the derrick, the crossbeam assembly is movably installed on the main beam assembly (11), the trolley assembly (13) is movably installed on the crossbeam assembly, the hoist drive assembly (14) is set on the trolley assembly (13), the hoist (15) and the hoist drive assembly (14) are connected to drive the hoist (15) to rotate and lift. The direction of movement of the beam assembly, the direction of movement of the trolley assembly (13), and the direction of lifting of the jack (15) are perpendicular to each other.

4. The offline root system as described in claim 3, characterized in that, The main beam assembly (11) includes a first support beam (111) and a first guide rail (112); The first support beam (111) is fixedly installed on the derrick, and the first guide rail (112) is fixedly installed on the first support beam (111), and the first guide rail (112) extends along the length direction of the first support beam (111); The crossbeam assembly is movably supported on the first guide rail (112).

5. The offline root system as described in claim 4, characterized in that, The crossbeam assembly includes a second support beam (121), a second guide rail (122), and a crossbeam trolley (123). The end of the second support beam (121) is fixed to the crossbeam trolley (123), and the crossbeam trolley (123) is movably supported on the first guide rail (112); the second guide rail (122) is fixedly installed on the second support beam (121), and the second guide rail (122) extends along the length direction of the second support beam (121); The trolley assembly (13) is movably supported on the second guide rail (122).

6. The offline root system as described in claim 5, characterized in that, The first support beam (111) is provided with a first rack (113) extending along its length. The beam trolley (123) includes a support (124), a first roller assembly, a first drive, and a first gear; The support (124) is movably supported on the first guide rail (112) by the first roller assembly. The first driver is mounted on the support (124). The first driver is connected to the first rack (113) through the first gear to drive the first gear to rotate and mesh with the first rack (113) to drive the support (124) to move along the first guide rail (112).

7. The offline root system as described in claim 5, characterized in that, The second support beam (121) is provided with a second rack (125) extending along its length direction; The trolley assembly (13) includes a bracket (131), a second roller assembly, a second drive (132), and a second gear; The bracket (131) is movably supported on the second guide rail (122) by the second roller assembly. The second driver (132) is mounted on the bracket (131). The second driver (132) is connected to the second rack (125) by the second gear to drive the second gear to rotate and mesh with the second rack (125) to drive the bracket (131) to move along the second guide rail (122). The hanger drive assembly (14) is mounted on the bracket (131).

8. A method for establishing roots in an offline root-establishing system as described in any one of claims 2-7, characterized in that, For establishing a root in a dual-drill-pipe system, the steps include: S1. The middle finger beam mechanism (3) flips to the yielding position, and the second-floor finger beam mechanism (2) flips to the working position; the crossbeam assembly and the trolley assembly (13) drive the lifting clamp (15) to move to the horizontal target position, the lifting clamp drive assembly (14) drives the lifting clamp (15) to rotate to the target angle, and then drives the lifting clamp (15) to descend to the handover position; S2, the jack (15) closes and grabs the first drill rod, the jack drive assembly (14) drives the jack (15) to rise to the target height, the crossbeam assembly and the trolley assembly (13) drive the first drill rod to move horizontally above the power mouse hole; the jack drive assembly (14) drives the jack (15) to lower the first drill rod into the power mouse hole to the locking height; S3, the crossbeam assembly and the trolley assembly (13) drive the jack (15) to move to the horizontal target position, the jack drive assembly (14) drives the jack (15) to rotate and adjust the angle, and lower the jack (15) to the handover position; the jack (15) closes the door and grabs the second drill rod, the jack drive assembly (14) drives the jack (15) to rise to the target height, and the crossbeam assembly and the trolley assembly (13) drive the second drill rod to move horizontally above the power mouse hole; S4. The hoist drive assembly (14) drives the hoist (15) to lower the second drill rod to dock with the first drill rod. The iron driller connects the first drill rod and the second drill rod to form a double drill rod support. The hoist drive assembly (14) drives the hoist (15) to rise to the storage height. The crossbeam assembly and the trolley assembly (13) drive the hoist (15) to move the double drill rod support horizontally to the target storage position of the second-floor platform finger beam mechanism (2).

9. The root establishment method for an offline root establishment system as described in claim 8, characterized in that, For establishing a root for a three-drill-pipe system, the following steps are also included: S5. After the double drill rod stand is formed, the chuck drive assembly (14) continues to lower the double drill rod stand into the power mouse hole to the engagement height; the crossbeam assembly and the trolley assembly (13) drive the chuck (15) to move to the horizontal target position, the chuck drive assembly (14) drives the chuck (15) to rotate and adjust the angle, and lower the chuck (15) to the handover position; the chuck (15) closes and grabs the third drill rod, the chuck drive assembly (14) drives the chuck (15) to rise to the target height, and the crossbeam assembly and the trolley assembly (13) drive the third drill rod to move horizontally above the power mouse hole; S6. The hoist drive assembly (14) drives the hoist (15) to lower the third drill rod to connect with the double drill rod support. The iron driller connects the third drill rod and the double drill rod support to form a three-drill rod support. The hoist drive assembly (14) drives the hoist (15) to rise to the storage height. The crossbeam assembly and the trolley assembly (13) drive the hoist (15) to move the three-drill rod support horizontally to the target storage position of the second-floor platform finger beam mechanism (2).

10. A method for establishing roots in an offline root-establishing system as described in any one of claims 2-7, characterized in that, Establishing a root for the oil casing includes the following steps: S1, the second-floor platform finger beam mechanism (2) flips to the yielding position, and the middle finger beam mechanism (3) flips to the working position; the crossbeam assembly and the trolley assembly (13) drive the lifting clamp (15) to move to the horizontal target position, the lifting clamp drive assembly (14) drives the lifting clamp (15) to rotate to the target angle, and then drives the lifting clamp (15) to descend to the handover position; S2, the hoist (15) closes and grabs the first oil casing, the hoist drive assembly (14) drives the hoist (15) to rise to the target height, the crossbeam assembly and the trolley assembly (13) drive the first oil casing to move horizontally above the power rat hole; the hoist drive assembly (14) drives the hoist (15) to lower the first oil casing into the power rat hole to the locking height; S3, the crossbeam assembly and the trolley assembly (13) drive the lifting clamp (15) to move to the horizontal target position, the lifting clamp drive assembly (14) drives the lifting clamp (15) to rotate and adjust the angle, and lower the lifting clamp (15) to the handover position; the lifting clamp (15) closes the door and grabs the second oil casing, the lifting clamp drive assembly (14) drives the lifting clamp (15) to rise to the target height, and the crossbeam assembly and the trolley assembly (13) drive the second oil casing to move horizontally above the power mouse hole; S4. The lifting clamp drive assembly (14) drives the lifting clamp (15) to lower the second oil casing to dock with the first oil casing. The iron drill upper buckle connects the first oil casing and the second oil casing to form the oil casing support. The lifting clamp drive assembly (14) drives the lifting clamp (15) to rise to the storage height. The crossbeam assembly and the pulley assembly (13) drive the lifting clamp (15) to move the oil casing support horizontally to the target storage position of the middle finger beam mechanism (3).

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