Control method for installing well device

Abstract

The invention provides a control method of a mounting well device, the control method is used for connecting a drill rod with a driving drill rod or a power head, the mounting well device comprises a sleeve, a clamping mechanism and a driving mechanism, the sleeve is arranged in a drilling well, the clamping mechanism is slidably connected to the sleeve in the axis direction of the sleeve, and the clamping mechanism is used for clamping the drill rod; the driving mechanism is connected to the sleeve or the clamping mechanism, and the control method comprises the steps that S1, the drill rod is placed in the sleeve and connected with a bottom plate of the sleeve for positioning; s2, a clamping mechanism is driven to clamp the drill rod, and the drill rod is fixed and subjected to angle adjustment; s3, the driving mechanism drives the bottom plate or the clamping mechanism to move in the axis direction of the sleeve, and the bottom plate drives the drill rod and the clamping mechanism to move in the sleeve; and S4, the drill rod is in butt joint with the driving drill rod or the power head. The mounting well device for connecting the drill rod and the power head can solve the safety problem when the drill rod and the driving drill rod or the power head are mounted at high altitude in the prior art, and is high in mounting efficiency, high in adaptability and convenient to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation construction, and in particular to a control method for installing a well device. Background Art

[0002] When installing the drill rod and the active drill rod or the power head of the rotary drilling rig, it is necessary to first place the drill rod on a flat area on the ground, use a crane to lift the drill rod to the bottom of the active drill rod or the power head, align the joint of the drill rod with the joint of the active drill rod or the power head, and control the hydraulic system of the active drill rod or the power head to lock the connection between the active drill rod or the power head and the drill rod to complete the connection between the drill rod and the active drill rod or the power head; however, this docking method has many problems. For example, the drill rod needs to be lifted to the bottom of the active drill rod or the power head by a crane. The drilling tool is not easy to control during high-altitude operations, which poses a great safety hazard. The use of a crane will also increase costs significantly; and when performing high-altitude docking installation operations, the instability of high-altitude operations leads to long installation time and low installation efficiency. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a control method for installing a well device, which can solve the safety problems existing in the prior art when installing drill pipes and active drill pipes or power heads at high altitudes, and has high installation efficiency, high adaptability, and convenient operation.

[0004] The present invention provides a control method for installing a well device, which is used to connect a drill pipe with an active drill pipe or a power head. The well installation device includes a sleeve, a clamping mechanism and a driving mechanism. The sleeve is arranged in a drilling well, and the clamping mechanism is slidably connected to the sleeve along the axial direction of the sleeve. The clamping mechanism is used to clamp the drill pipe, and the driving mechanism is connected to the sleeve or the clamping mechanism. The control method includes: S1, placing the drill pipe into the sleeve and connecting it to the bottom plate of the sleeve for positioning; S2, driving the clamping mechanism to clamp the drill pipe, fix the drill pipe and adjust its angle; S3, the driving mechanism drives the bottom plate or the clamping mechanism to move along the axial direction of the sleeve, and the bottom plate drives the drill pipe and the clamping mechanism to move in the sleeve to control the height of the drill pipe in the sleeve; S4, docking the drill pipe with the active drill pipe or the power head.

[0005] In one embodiment, in S1, the sleeve includes a cylinder body, the base plate is slidably connected to the cylinder body, the base plate is used to support the drill rod, and a limiting block is fixedly connected to the side of the base plate close to the ground. When the drill rod is arranged in the sleeve, the limiting block cooperates with the drill rod to position the drill rod.

[0006] In one embodiment, in S3, the driving mechanism includes a fixed plate and a first hydraulic cylinder, the fixed plate is fixedly connected to the sleeve, and the first hydraulic cylinder is connected between the fixed plate and the base plate. Controlling the extension and retraction of the first hydraulic cylinder can drive the base plate to move along the axial direction of the sleeve, so that the height of the drill rod can be docked with the active drill rod or the power head.

[0007] In one embodiment, the driving mechanism includes at least one winch, and the clamping mechanism is provided with a connecting portion, and the wire rope of the winch is connected to the connecting portion. Tightening or loosening the wire rope of the winch can drive the clamping mechanism to move along the axial direction of the sleeve, so that the height of the drill rod can be docked with the active drill rod or the power head.

[0008] In one embodiment, the driving mechanism drives the drill rod to move within the sleeve at a speed less than or equal to 2 meters per minute.

[0009] In one embodiment, in S2, the inner wall of the sleeve is provided with at least two slides, each of the slides is arranged along the axial direction of the sleeve, and the slides are symmetrically arranged. The clamping mechanism is provided with a second slider corresponding to the slide, and the second slider cooperates with the slide so that the clamping mechanism can be slidably connected to the sleeve.

[0010] In one embodiment, the clamping mechanism includes at least two clamping members, each of which is respectively arranged corresponding to each of the slides, and the clamping members include a second hydraulic cylinder and a clamping block, the clamping block is arranged opposite to the second slider, the second hydraulic cylinder is connected between the second slider and the clamping block, and the extension and contraction of the second hydraulic cylinder can control the clamping block to clamp the drill rod.

[0011] In one embodiment, the bottom plate is provided with a first sliding block corresponding to each of the slideways, and the first sliding block cooperates with the slideway to enable the bottom plate to be slidably connected to the sleeve.

[0012] In one embodiment, the clamping diameter of the clamping mechanism is 400 mm to 1200 mm.

[0013] In one embodiment, the cross section of the slideway is arc-shaped.

[0014] The control method for installing the well device of the present invention places the drill pipe into the drilling sleeve, uses the clamping mechanism to clamp the drill pipe and adjust the angle, and adjusts the height of the drill pipe in the sleeve through the driving mechanism to adapt to the position of docking with the power head. The docking of the drill pipe with the active drill pipe or the power head is replaced from high-altitude operation to underground and surface operation through the installation well device, which greatly improves the safety and efficiency of the installation, is less affected by external factors, and most of the docking work can be completed by the clamping mechanism and the driving mechanism, reducing the work required for manual installation. In addition, the clamping mechanism and the driving mechanism can also adapt to drill pipes of various drilling diameters and heights, with high adaptability, simple structure and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic cross-sectional structural diagram of the installation well device according to the first embodiment of the present invention.

[0017] Figure 2 It is a schematic top view of the structure of the installation well device of the first embodiment of the present invention.

[0018] Figure 3 It is a schematic cross-sectional view of the driving mechanism of the well installation device according to the first embodiment of the present invention when in operation.

[0019] Figure 4 It is a schematic cross-sectional structural diagram of the base plate of the first embodiment of the present invention.

[0020] Figure 5 1 is a schematic diagram of the top structure of the base plate of the first embodiment of the present invention.

[0021] Figure 6 2 is a schematic structural diagram of the clamping mechanism according to the first embodiment of the present invention.

[0022] Figure 7 1 is a schematic top view of the clamping mechanism according to the first embodiment of the present invention.

[0023] Figure 8 It is a schematic structural diagram of the clamping mechanism of the first embodiment of the present invention when it is extended.

[0024] Figure 9 1 is a schematic top view of the structure of the clamping mechanism of the first embodiment of the present invention when it is extended.

[0025] Figure 102 is a front view structural diagram of the clamping mechanism of the second embodiment of the present invention.

[0026] Figure 11 2 is a schematic structural diagram of a clamping mechanism according to a second embodiment of the present invention.

[0027] Figure 12 2 is a schematic structural diagram of the clamping mechanism of the second embodiment of the present invention when extended.

[0028] Figure 13 It is a schematic cross-sectional view of the well installation device of the second embodiment of the present invention when clamping the drill pipe.

[0029] Figure 14 It is a schematic cross-sectional view of the well installation device according to the second embodiment of the present invention when the drill pipe is lifted.

[0030] Figure 15 It is a partial structural diagram of a hoist according to the second embodiment of the present invention.

[0031] Explanation of the accompanying reference numerals: slideway 101; cavity 102; sleeve 11; cylinder 111; bottom plate 112; limit block 112a; first slider 112b; clamping mechanism 12; clamping member 121; second slider 1211; second hydraulic cylinder 1212; clamping block 1213; first side surface 12131; second side surface 12132; connecting portion 1214; driving mechanism 13; fixing plate 131; first hydraulic cylinder 132; cylinder body 1321; piston rod 1322; winch 133; wire rope 1331; rope 1332; drum 1333; drill pipe 21. DETAILED DESCRIPTION

[0032] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are merely some, and not all, of the embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the description of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0033] In the description of the present invention, unless otherwise specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms based on the specific circumstances.

[0034] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0035] The terms "first," "second," "third," etc. are merely used to distinguish between elements of similar nature and do not indicate or imply relative importance or a particular order.

[0036] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0037] First embodiment like Figures 1 to 9 As shown, when the rotary drilling rig is assembled and installed, the long spiral drill rod needs to be docked with the active drill rod or the power head for installation. Taking the power head as an example, the upper end of the long spiral drill rod is connected to the power head so that the drill rod can be driven to rotate when the power head rotates. Since the existing installation method of the drill rod and the power head is high-altitude installation, that is, the drill rod is hoisted to the bottom of the power head by a crane for installation, but there is a greater safety risk, the installation of the drill rod and the power head is replaced from high-altitude installation to surface operation, that is, the drill rod is placed in the borehole below the ground for installation, but it is inconvenient to manually adjust the depth, inclination angle and specific position of the drill rod in the borehole during use, so it is necessary to use an installation well device to assist the drill rod 21. The installation well device includes a sleeve 11, a clamping mechanism 12 and a driving mechanism 13. The sleeve 11 is arranged in the drilling well. The sleeve 11 is a rigid structure. The clamping mechanism 12 is slidably connected to the sleeve 11 along the axial direction of the sleeve 11. The clamping mechanism 12 is used to clamp the drill rod 21. The clamping mechanism 12 can adjust the angle between the drill rod 21 and the axial direction of the sleeve 11. The driving mechanism 13 is connected to the sleeve 11. Specifically, the driving mechanism 13 is connected to the end of the sleeve 11 away from the ground. The driving mechanism 13 can move the drill rod 21 in the sleeve 11.

[0038] Preferably, the sleeve 11 includes a cylinder 111 and a base plate 112, the base plate 112 is slidably connected to the cylinder 111, the base plate 112 is used to carry the drill rod 21, and the side of the base plate 112 close to the ground is fixedly connected to a limit block 112a. When the drill rod 21 is arranged in the sleeve 11, the limit block 112a cooperates with the drill rod 21 to position the drill rod 21; the drill rod 21 is a hollow structure, and the hollow structure is circular or hexagonal, etc. The shape of the limit block 112a matches the shape of the hollow structure of the drill rod 21, that is, the limit block 112a is circular or hexagonal, etc., so as to realize the connection between the limit block 112a and the drill rod 21 and position the drill rod 21; the limit block 112a is arranged in the middle of the base plate 112. In this embodiment, at least two slides 101 are provided on the inner wall of the sleeve 11, each slide 101 is arranged along the axial direction of the sleeve 11, and the slides 101 are symmetrically arranged. The bottom plate 112 is provided with a first slider 112b corresponding to each slide 101. The first slider 112b cooperates with the slide 101 to make the bottom plate 112 slidably connected to the sleeve 11. The sleeve 11 is a cylindrical hollow structure. The sleeve 11 is provided with a cavity 102. The drill rod 21 is arranged in the cavity 102. The sleeve 11 includes an inner surface and an outer surface arranged opposite to each other. The inner surface is arranged in the cavity 102. The slide 101 is formed by the inner surface being concave toward the outer surface. The cross section of the slide 101 is arc-shaped. The bottom plate 112 is a circular plate-shaped structure. The first slider 112b is fixedly connected to the side wall of the bottom plate 112. The first slider 112b extends in a direction away from the limit block 112a. The first slider 112b is an arc-shaped block. The bottom plate 112 itself does not slide. When the driving mechanism 13 is lifted, it can drive the bottom plate 112 to move up and down along the slide 101. In addition, the slide 101 of this embodiment is preferably four slides 101, and can also be two slides 101 or three slides 101, etc. The number of the first sliders 112b of the bottom plate 112 matches the number of the slides 101.

[0039] Preferably, the driving mechanism 13 includes a fixed plate 131 and a first hydraulic cylinder 132. The fixed plate 131 is fixedly connected to the sleeve 11. The fixed plate 131 is arranged below the base plate 112. The fixed plate 131 is a circular plate structure. The first hydraulic cylinder 132 is connected between the fixed plate 131 and the base plate 112. The first hydraulic cylinder 132 is arranged along the axial direction of the sleeve 11. The telescopic movement of the first hydraulic cylinder 132 can drive the base plate 112 to move along the axial direction of the sleeve 11, thereby controlling the height of the drill rod 21 in the sleeve 11. In this embodiment, the first hydraulic cylinder 132 includes a cylinder body 1321 and a piston rod 1322. The piston rod 1322 is connected to the cylinder body 1321. The cylinder body 1321 is fixedly connected to the fixing plate 131. The fixed connection method is preferably welding or connecting through ear plates, bolts and nuts. The piston rod 1322 can extend or retract into the cylinder body 1321. One end of the piston rod 1322 is set in the cylinder body 1321, and the other end of the piston rod 1322 is connected to the bottom plate 112. The connection method is preferably The connection is selected by welding or by means of ear plates, bolts and nuts. Therefore, when the piston rod 1322 moves, the base plate 112 can be driven to move up and down along the slide 101. Since the drill rod 21 is arranged on the base plate 112 and is connected to the base plate 112, the height of the drill rod 21 in the sleeve 11 can be adjusted when the piston rod 1322 moves. The installation well device of this embodiment can adapt to drill rods 21 with a height of 4m~8m, such as a 4m drill rod 21, a 6m drill rod 21 or an 8m drill rod 21, etc.

[0040] Preferably, the clamping mechanism 12 is provided with a second slider 1211 corresponding to the slide 101. The second slider 1211 cooperates with the slide 101 to enable the clamping mechanism 12 to be slidably connected to the sleeve 11. It can be understood that the clamping mechanism 12 itself cannot slide and needs to slide on the slide 101 under the action of the driving mechanism 13. The length of the second slider 1211 is less than the length of the slide 101, and the size of the second slider 1211 is consistent with the size of the slide 101. The second slider 1211 and the slide 101 are preferably connected by mortise and tenon to prevent the clamping mechanism 12 from falling off the slide 101.

[0041] Preferably, the clamping mechanism 12 includes at least two clamping members 121, each clamping member 121 is symmetrically arranged, the number of the clamping members 121 corresponds to the number of the slideways 101, each clamping member 121 is arranged one-to-one with each slideway 101, the clamping member 121 includes a second hydraulic cylinder 1212 and a clamping block 1213, the clamping block 1213 is arranged opposite to the second slider 1211, and the clamping block 1213 and the second slider 1211 are arranged along the axis of the sleeve 11. The second hydraulic cylinder 1212 is arranged along the radial direction of the sleeve 11, and the second hydraulic cylinder 1212 is connected between the second slider 1211 and the clamping block 1213. The second hydraulic cylinder 1212 is telescopic and can control the clamping block 1213 to clamp the drill rod 21. In this embodiment, the clamping block 1213 is a block structure, and the clamping block 1213 includes a first side surface 12131 and a second side surface 12132 that are arranged opposite to each other. The second hydraulic cylinder 1212 is connected to the first The side surface 12131 and the second side surface 12132 are straight surfaces or curved surfaces. When the second side surface 12132 is a curved surface, the angle of the curved surface matches the curvature of the contact surface of the drill rod 21. The specific structure of the second hydraulic cylinder 1212 is the same as that of the first hydraulic cylinder 132, and will not be described in detail here. In addition, there are preferably four clamping members 121, or two or three, etc., and four clamping members 121 are described as an example. The four clamping members 121 are symmetrically arranged, and the angle between two adjacent clamping members 121 is 90°. The four clamping members 121 clamp the drill rod 21 in four directions, which greatly improves the stability of the drill rod 21 fixation and avoids the phenomenon of the drill rod 21 being at a cheap angle. The first hydraulic cylinder 132 and the second hydraulic cylinder 1212 cooperate to automatically adjust the depth of the drill rod 21 in the well according to the position of the power head and the length of the drill rod 21, thereby facilitating the installation operation between the drill rod 21 and the active drill rod or power head.

[0042] Preferably, the clamping diameter of the clamping mechanism 12 is 400 mm to 1200 mm, that is, the clamping mechanism 12 can clamp the drill rod 21 with a drill diameter between 400 mm and 1200 mm, for example, a drill rod 21 with a drill diameter of 400 mm, 800 mm or 1200 mm.

[0043] Control method for installing well device: S1, put the drill rod 21 into the drilling sleeve 11 and connect it to the bottom plate 112 for positioning; specifically, set the limit block 112a on the bottom plate 112 in the drill rod 21 to achieve the positioning of the drill rod 21.

[0044] S2 drives the clamping mechanism 12 to clamp the drill rod 21, fixes the drill rod 21 and adjusts the angle; specifically, controls the second hydraulic cylinder 1212 to extend and retract, and the second hydraulic cylinder 1212 drives the clamping block 1213 to move along the radial direction of the sleeve 11 to clamp the drill rod 21. Since there are at least two clamping members 121, the angle of the drill rod 21 can be adjusted by adjusting the telescopic length of the second hydraulic cylinder 1212. The angle refers to the angle formed between the axis of the drill rod 21 and the axis of the sleeve 11.

[0045] S3: The drive mechanism 13 drives the base plate 112 to move along the axis of the sleeve 11. The base plate 112 drives the drill rod 21 and the clamping mechanism 12 to move within the sleeve 11 to control the height of the drill rod 21 within the sleeve 11. Specifically, after the clamping mechanism 12 secures the drill rod 21, the first hydraulic cylinder 132 of the drive mechanism 13 is controlled to extend and retract. The first hydraulic cylinder 132 pushes the base plate 112 to move, thereby adjusting the height of the drill rod 21 on the base plate 112 within the sleeve 11 so that the height of the drill rod 21 matches the height required for docking with the power head. The drive mechanism 13 drives the drill rod 21 within the sleeve 11 at a speed of less than or equal to 2 meters per minute.

[0046] S4, docking the drill rod 21 with the active drill rod or the power head.

[0047] Second embodiment like Figures 10 to 15 As shown, the installation well device of this embodiment is substantially the same in structure as the installation well device of the first embodiment, except that the structure of the driving mechanism 13 is different.

[0048] Specifically, the drive mechanism 13 is connected to the clamping mechanism 12, and the drive mechanism 13 drives the clamping mechanism 12 to move along the axis of the sleeve 11 to adjust the height of the drill rod 21 within the sleeve 11. The drive mechanism 13 includes at least one winch 133. The clamping mechanism 12 is provided with a connection portion 1214. A wire rope 1331 of the winch 133 is connected to the connection portion 1214. Tightening or loosening the wire rope 1331 of the winch 133 drives the clamping mechanism 12 to move along the axis of the sleeve 11, so that the height of the drill rod 21 can be connected to the active drill rod or the power head. In this embodiment, the winch 133 can be fixed on the ground or on a gantry or other support structure; taking the clamping mechanism 12 with four clamping members 121 as an example, the connecting portion 1214 is fixedly connected to the top of the second slider 1211 of the clamping member 121, and the connecting portion 1214 is preferably a lifting ear, so the wire rope 1331 is connected to the lifting ear; when there is only one winch 133, the free end of the wire rope 1331 is fixedly connected to four ropes 1332, and the four ropes 1332 are respectively connected to the second sliders 1211 of the four clamping members 121; when there are two winches 133, the free end of the wire rope 1331 is fixedly connected to two ropes 1332, so the two winches 133 are connected to the second sliders 1211 of the four clamping members 121 by four ropes 1332; when there are four winches 133, the free end of the wire rope 1331 is directly connected to the second slider 1211. The winch 133 is mainly composed of a motor (or hydraulic system), a drum 1333, a brake, a reducer, a wire rope 1331 (or a chain) and other components; the motor is the power source of the winch 133, the driving end of the motor is connected to the drum 1333, the wire rope 1331 or the chain is wound around the drum 1333, and the drum 1333 is driven by the motor to rotate, tightening or loosening the wire rope 1331 to achieve the lifting and lowering of the clamping mechanism 12. The brake is used to control the stopping and fixing of the drum 1333 to ensure the safety of the clamping mechanism 12 during the lifting process. The reducer plays the role of deceleration and increasing torque to ensure the stable operation of the drum 1333.

[0049] The control method for installing the well device includes: S1, put the drill rod 21 into the drilling sleeve 11 and connect it to the bottom plate 112 for positioning; specifically, set the limit block 112a on the bottom plate 112 in the drill rod 21 to achieve the positioning of the drill rod 21.

[0050] S2, drives the clamping mechanism 12 to clamp the drill rod 21, fixes the drill rod 21 and adjusts the angle; specifically, controls the second hydraulic cylinder 1212 to extend and retract, and the second hydraulic cylinder 1212 drives the clamping block 1213 to move along the radial direction of the sleeve 11 to clamp the drill rod 21. Since there are at least two clamping members 121, the drill rod 21 can be straightened or the angle can be adjusted by adjusting the telescopic length of the second hydraulic cylinder 1212. The angle refers to the angle formed between the axis of the drill rod 21 and the axis of the sleeve 11.

[0051] S3: The drive mechanism 13 drives the clamping mechanism 12 to move along the axis of the sleeve 11. The clamping mechanism 12 drives the drill rod 21 and the bottom plate 112 to move within the sleeve 11 to control the height of the drill rod 21 within the sleeve 11. Specifically, the wire rope 1331 of the hoist 133 is connected to the lifting lug on the second slider 1211 of the clamping mechanism 12. By tightening the wire rope 1331, the second slider 1211 can be moved upward to raise the drill rod 21. By loosening the wire rope 1331, the second slider 1211 can be moved downward to lower the drill rod 21. The drive mechanism 13 drives the drill rod 21 within the sleeve 11 at a speed of less than or equal to 2 meters per minute.

[0052] S4, docking the drill rod 21 with the active drill rod or the power head.

[0053] The control method of the well installation device of the present invention places the drill pipe into the drilling sleeve, uses the clamping mechanism 12 to clamp and adjust the angle of the drill pipe 21, and adjusts the height of the drill pipe 21 in the sleeve 11 through the driving mechanism 13 to adapt to the position of docking with the power head. The well installation device replaces the docking of the drill pipe 21 with the active drill pipe or the power head from high-altitude operation to underground and surface operation, which greatly improves the safety and efficiency of installation, is less affected by external factors, and most of the docking work can be completed by the clamping mechanism 12 and the driving mechanism 13, reducing the work required for manual installation. In addition, the clamping mechanism 12 and the driving mechanism 13 can also adapt to drill pipes 21 of various drilling diameters and heights, with high adaptability, simple structure and convenient operation.

[0054] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this invention are intended to be covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A control method for installing a well device, used to connect a drill pipe to an active drill pipe or a power head, characterized in that: The well installation device comprises a sleeve (11), a clamping mechanism (12) and a driving mechanism (13); the sleeve (11) is arranged in a drilling well; the clamping mechanism (12) is slidably connected to the sleeve (11) along the axial direction of the sleeve (11); the clamping mechanism (12) is used to clamp a drill pipe (21); the driving mechanism is connected to the sleeve (11) or the clamping mechanism (12); and the control method comprises: S1, placing the drill rod (21) into the sleeve (11) and connecting it to the bottom plate (112) of the sleeve (11) for positioning; S2, driving the clamping mechanism (12) to clamp the drill rod (21), fixing the drill rod (21) and adjusting its angle; S3, the driving mechanism (13) drives the base plate (112) or the clamping mechanism (12) to move along the axial direction of the sleeve (11), and the base plate (112) drives the drill rod (21) and the clamping mechanism (12) to move in the sleeve (11) to control the height of the drill rod (21) in the sleeve (11); S4, docking the drill rod (21) with the active drill rod or the power head.

2. The control method for installing a well device according to claim 1, wherein: In S1, the sleeve (11) includes a cylinder (111), the bottom plate (112) is slidably connected to the cylinder (111), the bottom plate (112) is used to support the drill rod (21), and a limiting block (112a) is fixedly connected to a side of the bottom plate (112) close to the ground. When the drill rod (21) is set in the sleeve (11), the limiting block (112a) cooperates with the drill rod (21) to position the drill rod (21).

3. The control method for installing a well device according to claim 1, wherein: In S3, the driving mechanism (13) includes a fixed plate (131) and a first hydraulic cylinder (132), wherein the fixed plate (131) is fixedly connected to the sleeve (11), and the first hydraulic cylinder (132) is connected between the fixed plate (131) and the base plate (112). Controlling the expansion and contraction of the first hydraulic cylinder (132) can drive the base plate (112) to move along the axis of the sleeve (11), so that the height of the drill rod (21) can be docked with the active drill rod or the power head.

4. The control method for installing a well device according to claim 1, wherein: The driving mechanism (13) includes at least one hoist (133), and the clamping mechanism (12) is provided with a connecting portion (1214). The steel wire rope (1331) of the hoist (133) is connected to the connecting portion (1214). Tightening or loosening the steel wire rope (1331) of the hoist (133) can drive the clamping mechanism (12) to move along the axial direction of the sleeve (11), so that the height of the drill rod (21) can be docked with the active drill rod or the power head.

5. The control method for installing a well device according to claim 1, wherein: The driving mechanism (13) drives the drill rod (21) to move within the sleeve (11) at a speed less than or equal to 2 meters per minute.

6. The control method for installing a well device according to claim 1, wherein: In S2, the inner wall of the sleeve (11) is provided with at least two slideways (101), each of the slideways (101) is arranged along the axial direction of the sleeve (11), and each of the slideways (101) is symmetrically arranged. The clamping mechanism (12) is provided with a second slider (1211) corresponding to the slideway (101), and the second slider (1211) cooperates with the slideway (101) so that the clamping mechanism (12) is slidably connected to the sleeve (11).

7. The control method for installing a well device according to claim 6, wherein: The clamping mechanism (12) includes at least two clamping members (121), each of the clamping members (121) is respectively arranged corresponding to each of the slideways (101), and the clamping member (121) includes a second hydraulic cylinder (1212) and a clamping block (1213), the clamping block (1213) is arranged opposite to the second slider (1211), the second hydraulic cylinder (1212) is connected between the second slider (1211) and the clamping block (1213), and the second hydraulic cylinder (1212) can control the clamping block (1213) to clamp the drill rod (21) by extending and retracting.

8. The control method for installing a well device according to claim 6, wherein: The bottom plate (112) is provided with a first sliding block (112b) corresponding to each of the slideways (101); the first sliding block (112b) cooperates with the slideway (101) to enable the bottom plate (112) to be slidably connected to the sleeve (11).

9. The control method for installing a well device according to claim 1, wherein: The clamping diameter of the clamping mechanism (12) is 400 mm to 1200 mm.

10. The control method for installing a well device according to claim 6, wherein: The cross section of the slideway (101) is arc-shaped.

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