A set of equipment for environmental protection drilling in soil layer

Abstract

This invention belongs to the field of oil drilling equipment technology, specifically providing a supporting equipment for environmentally friendly drilling in soil formations, including a drill bit, a hoisting mechanism, a drill string, a hoisting wire rope, and a winch. The lower part of the drill string is connected to the drill bit, the hoisting mechanism is sleeved outside the drill string and the lower part of the hoisting mechanism is sleeved outside the upper part of the drill bit, and the upper part of the hoisting mechanism is connected to the winch through the hoisting wire rope. This invention solves the problems of high cost, low efficiency, shallow drilling depth, and irregular wellbore in existing technologies when drilling without drilling fluid. This invention realizes dry rotary drilling operations, with low cost, high efficiency, deep drilling depth, and regular wellbore.

Description

Technical Field

[0001] This invention belongs to the field of oil drilling equipment technology, specifically relating to a supporting equipment for environmentally friendly drilling in soil layers. Background Technology

[0002] During surface drilling operations in oil wells, drilling fluid leakage frequently occurs due to loose soil layers and formation fissures, causing groundwater pollution. Drilling fluid leaks onto the surface can lead to environmental pollution incidents.

[0003] The most fundamental way to solve the environmental pollution caused by drilling fluid loss is to avoid using drilling fluid in surface drilling, also known as dry drilling. Currently, the oil industry uses air drilling for fluid-free drilling. However, its application in surface soil operations suffers from problems such as high equipment costs, high operating costs, low efficiency, and inability to operate in water-bearing or clay-bearing formations. Other dry drilling equipment used in other industries, such as pile drivers, is expensive and has limited well depth; water drilling rigs also have limited well depth and lower efficiency.

[0004] Chinese patent document CN111980593A, published on November 24, 2020, discloses an oil drilling device, including a base, with symmetrical support plates on both sides of the base, and a top plate slidably connected between the two support plates. A motor is installed at the bottom of the top plate, and the output end of the motor is connected to a drill rod through a first rotating shaft. A hollow drill bit is connected to the bottom of the drill rod. A sleeve is fitted over the drill rod, and the sleeve is slidably connected to the support plates. The bottom of the sleeve is rotatably connected to the top of the drill bit. A drill bit opening is provided on one side of the drill bit, and the drill bit opening communicates with the sleeve. Two spiral conveying augers are also rotatably installed inside the sleeve, and the two spiral conveying augers are connected to the first rotating shaft through a gear system. A slag outlet is provided on the rear side of the sleeve. The drilling device also includes a drill bit cooling component for cooling the drilling head. This document addresses the problems of existing drilling equipment, such as the inability to protect drill bits, relatively complex operation, and high energy consumption; however, it does not solve the problems of high cost, low efficiency, shallow drilling depth, and irregular wellbore when drilling without drilling fluid. Summary of the Invention

[0005] The purpose of this invention is to provide a supporting equipment for environmentally friendly drilling in soil layers, which overcomes the problems of high cost, low efficiency, shallow drilling depth, and irregular wellbore in existing technologies when drilling without drilling fluid.

[0006] Therefore, the present invention provides a supporting equipment for environmentally friendly drilling in soil layers, including a drill bit, a lifting mechanism, a drill string, a lifting wire rope and a winch. The lower part of the drill string is connected to the upper part of the drill bit, the lifting mechanism is sleeved on the outside of the drill string and the lower part of the lifting mechanism is sleeved on the outside of the upper part of the drill bit, and the upper part of the lifting mechanism is connected to the winch through the lifting wire rope.

[0007] Preferably, the drill bit includes a drill bit connecting section and a cutting edge. The drill bit connecting section is sleeved with a lifting mechanism. The lower end of the drill bit connecting section is connected to the cutting edge. The upper part of the drill bit connecting section is threaded to the lower part of the drill string. A torque transmission element is provided on the outer side of the middle part of the drill bit connecting section. The drill bit connecting section and the lifting mechanism are engaged and connected through the torque transmission element.

[0008] Preferably, a reinforcing ring is provided between the drill bit connecting section and the cutting edge.

[0009] Preferably, the lifting mechanism includes a central tube, a spiral auger, a reaming blade, and an anti-rotation mechanism. The drill string and drill bit connecting section are sequentially sleeved inside the central tube from top to bottom. The anti-rotation mechanism is connected to the upper end of the central tube. The reaming blade and spiral auger are sequentially sleeved outside the central tube from top to bottom.

[0010] Preferably, a torque transmission structure is provided inside the intermediate tube, and the torque transmission component is engaged with the torque transmission structure.

[0011] Preferably, the expanding blade includes a expanding blade sleeve and a expanding blade face, the expanding blade sleeve being fitted over the outside of the intermediate tube; the number of expanding blade faces is multiple, and the multiple expanding blade faces are circumferentially and equally spaced on the outer side of the expanding blade sleeve.

[0012] Preferably, a reaming blade reinforcing plate is provided between the lower surface of the reaming blade and the outer side of the reaming blade sleeve.

[0013] Preferably, the outer diameter of the reaming cutting edge is larger than the outer diameter of the drill bit.

[0014] Preferably, the anti-rotation mechanism includes a ring seat, anti-rotation rods, a lifting seat, and lifting rods. The number of anti-rotation rods and lifting rods is the same, and there are multiple anti-rotation rods. The upper ends of the multiple lifting rods are circumferentially and evenly connected to the outside of the lifting seat. The lower end of each of the multiple lifting rods is connected to the outside of the ring seat through an anti-rotation rod. The multiple anti-rotation rods are circumferentially and evenly distributed and connected to the outside of the ring seat. Both the lifting seat and the ring seat have drill strings inside them. The lifting seat is connected to the winch through a lifting wire rope.

[0015] Preferably, the lifting rod and the anti-rotation rod are connected by a pin, and the anti-rotation rod and the ring seat are connected by a pin.

[0016] The beneficial effects of this invention are:

[0017] 1. The supporting equipment for environmentally friendly drilling in soil layers provided by this invention utilizes existing drilling rigs and processes to drive the drill string to rotate, which in turn drives the drill bit to rotate for rotary drilling operations. The drill bit drives the hoisting mechanism to rotate synchronously, and the reaming edge of the hoisting mechanism simultaneously performs rotary drilling to enlarge the borehole. The excavated soil cuttings are collected on the auger of the hoisting mechanism. When the soil cuttings are full, the winch is started, and the winch lifts the hoisting mechanism via the lifting wire rope to bring the accumulated soil cuttings out of the wellbore and cleans the soil cuttings stored on the auger. After the soil cuttings are cleaned, the hoisting mechanism is quickly lowered down along the drill string to the bottom to begin the next round of rotary drilling operations. By making full use of the existing equipment of the drilling team, dry rotary drilling operations are achieved without making major changes to the original drilling process, resulting in low drilling equipment cost and high efficiency.

[0018] 2. The supporting equipment for environmentally friendly drilling of soil layers provided by this invention uses the hole-expanding blade of the lifting mechanism to carry out hole-expanding operation, which reduces the lifting resistance of the lifting mechanism, reduces energy consumption, and improves work efficiency.

[0019] 3. The supporting equipment for environmentally friendly drilling in soil provided by this invention consists of a drill string formed by multiple drill collars connected in series, which can be spliced ​​and combined according to the depth. The lifting wire rope can be adjusted according to the depth to meet the needs of various drilling depths.

[0020] 4. The supporting equipment for environmentally friendly drilling in soil provided by this invention has an anti-rotation rod that opens outward and adheres to the well wall under the action of gravity. Under the action of frictional resistance of the well wall, the anti-rotation mechanism cannot rotate with the intermediate pipe, so as to ensure that the lifting wire rope connected to it does not get tangled on the drill string. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the supporting equipment structure for environmentally friendly drilling in soil layers;

[0023] Figure 2 It is an overall assembly drawing of the drill bit and the lifting mechanism;

[0024] Figure 3 This is a schematic diagram of the overall structure of the spiral auger and intermediate pipe;

[0025] Figure 4 This is a schematic diagram of the drill bit structure;

[0026] Figure 5 This is a schematic diagram of the anti-rotation mechanism.

[0027] Figure 6 This is a schematic diagram of the hole-reducing cutting edge structure.

[0028] Explanation of reference numerals in the attached drawings: 1. Drill bit; 2. Reinforcing ring; 3. Lifting mechanism; 4. Reaming blade; 5. Intermediate tube; 6. Anti-rotation mechanism; 7. Spiral auger; 8. Cutting edge; 9. Drill bit connecting section; 10. Torque transmission component; 11. Reaming blade sleeve; 12. Reaming blade reinforcing plate; 13. Reaming blade cutting face; 14. Torque transmission structure; 15. Axial limiting component of anti-rotation mechanism; 16. Intermediate tube head; 17. Pin; 18. Ring seat; 19. Anti-rotation rod; 20. Lifting seat; 21. Lifting rod; 22. Drill string; 23. Winch; 24. Lifting wire rope. Detailed Implementation

[0029] Example 1:

[0030] like Figure 1 As shown, a set of supporting equipment for environmentally friendly drilling of soil includes a drill bit 1, a lifting mechanism 3, a drill string 22, a lifting wire rope 24, and a winch 23. The lower part of the drill string 22 is connected to the upper part of the drill bit 1. The lifting mechanism 3 is sleeved on the outside of the drill string 22, and the lower part of the lifting mechanism 3 is sleeved on the outside of the upper part of the drill bit 1. The upper part of the lifting mechanism 3 is connected to the winch 23 through the lifting wire rope 24.

[0031] In actual operation, this invention utilizes existing drilling rigs and processes to drive the drill string 22 to rotate, which in turn drives the drill bit 1 to rotate for rotary drilling. The drill bit 1 drives the hoisting mechanism 3 to rotate synchronously. The hoisting mechanism 3 rotary digs and enlarges the borehole and collects the excavated soil cuttings. When the soil cuttings are full, the winch 23 is started. The winch 23 lifts the hoisting mechanism 3 via the hoisting wire rope 24, bringing the accumulated soil cuttings out of the wellbore. After cleaning the soil cuttings stored on the hoisting mechanism 3, the clean hoisting mechanism 3 is quickly lowered down along the drill string 22 to begin the next round of rotary drilling. By making full use of the existing equipment of the drilling team, dry rotary drilling operations are achieved without making significant changes to the original drilling process. The drilling equipment is low-cost and highly efficient.

[0032] The drill string 22 is formed by connecting multiple drill collars in series, and can be spliced ​​and combined according to the depth. The lifting wire rope 24 is adjusted according to the depth to meet the needs of various drilling depths.

[0033] The winch 23 is a commercially available ordinary winch, and its installation is not limited to the ground. The lifting wire rope 24 passes through a pulley installed on the derrick and located directly above the wellhead, connecting the lifting mechanism 3 to the winch 23; the derrick and pulley are existing equipment of the drilling team; other supporting tools and operating procedures required in actual operation are existing equipment of the drilling team, and are not described in detail in this invention.

[0034] Example 2:

[0035] Based on Example 1, such as Figure 2 and Figure 4As shown, the drill bit 1 includes a drill bit connecting section 9 and a cutting edge 8. The drill bit connecting section 9 is sleeved with a lifting mechanism 3. The lower end of the drill bit connecting section 9 is connected to the cutting edge 8. The upper part of the drill bit connecting section 9 is threaded to the lower part of the drill string 22. A torque transmission component 10 is provided on the outer side of the middle part of the drill bit connecting section 9. The drill bit connecting section 9 and the lifting mechanism 3 are engaged and connected through the torque transmission component 10.

[0036] In actual operation, the threaded connection is a detachable connection, with a simple and stable structure and convenient operation. The torque transmission component 10 facilitates the meshing connection between the drill bit connection section 9 and the lifting mechanism 3. The meshing connection has high transmission efficiency, long service life, smooth transmission, high reliability, and can ensure a constant instantaneous transmission ratio. The structure of the torque transmission component 10 can be of various forms, which are well-known technologies. It is set according to the actual situation when in use, and its specific structure will not be described in detail here.

[0037] Preferably, a reinforcing ring 2 is provided between the drill bit connecting section 9 and the cutting edge 8. The reinforcing ring 2 improves the overall structural stability of the drill bit 1 during use.

[0038] Preferably, the cutting edge 8 is a single-head or multi-head auger bit, and the lower end of the auger bit is a toothed cutting edge; the specific number of auger bits is selected according to the drilling of the wellbore to meet various drilling needs, with good adaptability and high drilling efficiency of the toothed cutting edge.

[0039] Preferably, the torque transmission component 10 has a guiding function and can take various structural forms, the specific structure of which will not be described in detail here; the guiding function facilitates the connection of the lifting mechanism 3 to the drill bit 1. The lifting mechanism 3 can slide on the drill string 22: it separates from the drill bit 1 during lifting, and after being lowered to the bottom, it is aligned with the drill bit 1 through the torque transmission structure 10.

[0040] Example 3:

[0041] Based on Example 2, such as Figure 3 As shown, the lifting mechanism 3 includes a middle tube 5, a spiral auger 7, a hole-reaming blade 4, and an anti-rotation mechanism 6. The drill string 22 and the drill bit connecting section 9 are sequentially sleeved inside the middle tube 5 from top to bottom. The anti-rotation mechanism 6 is connected to the upper end of the middle tube 5. The hole-reaming blade 4 and the spiral auger 7 are sequentially sleeved outside the middle tube 5 from top to bottom.

[0042] The hole-expanding process was carried out by using the hole-expanding blade 4 of the lifting mechanism 3, which reduced the lifting resistance of the lifting mechanism 3, reduced energy consumption, and improved work efficiency.

[0043] In actual use, existing drilling rigs and processes are utilized to drive the drill string 22 to rotate, which in turn drives the drill bit 1 to rotate for rotary drilling operations. The drill bit 1 drives the hoisting mechanism 3 to rotate synchronously, and the reaming edge 4 of the hoisting mechanism 3 simultaneously performs rotary drilling to enlarge the borehole. The excavated cuttings are collected on the auger 7 of the hoisting mechanism 3. When the cuttings are full, the winch 23 is started, and the winch 23 lifts the hoisting mechanism 3 via the hoisting wire rope 24 to bring the accumulated cuttings out of the wellbore and clean the cuttings stored in the auger 7. After the cuttings are cleaned, the hoisting mechanism 3 is quickly lowered down along the drill string 22 to begin the next round of rotary drilling operations. By making full use of the existing equipment of the drilling team, dry rotary drilling operations are achieved without making major changes to the original drilling process, resulting in low drilling equipment costs and high efficiency.

[0044] Preferably, the auger 7 is a single-head or multi-head spiral strip with a helix angle, and the number of heads of its spiral strip is the same as the number of heads of the auger drill bit 1. This meets drilling requirements while improving structural stability.

[0045] Preferably, a torque transmission structure 14 is provided inside the intermediate tube 5, and the torque transmission component 10 is engaged with the torque transmission structure 14. This structure can have various forms, and the appropriate form is selected based on the actual situation. Therefore, its specific structure will not be described in detail here. The torque transmission structure 14 has high transmission efficiency, long service life, smooth transmission, high reliability, and can ensure a constant instantaneous transmission ratio.

[0046] Preferred, such as Figure 6 As shown, the enlarging blade 4 includes an enlarging blade sleeve 11 and an enlarging blade face 13. The enlarging blade sleeve 11 is sleeved on the outside of the intermediate tube 5. There are multiple enlarging blade faces 13, which are circumferentially and equally spaced on the outer side of the enlarging blade sleeve 11.

[0047] The structure is simple and stable. When using it, the number of 13 reaming blades can be selected according to the needs. It is easy to install, disassemble and maintain.

[0048] Preferably, a reaming blade reinforcing plate 12 is provided between the lower surface of the reaming blade 13 and the outer side of the reaming blade sleeve 11.

[0049] The reinforcing plate 12 of the reaming blade improves the structural stability of the reaming blade 4 during use and reduces the deformation and breakage of the reaming blade sleeve 11 and the reaming blade face 13.

[0050] Preferably, the outer diameter of the reaming blade 4 is larger than the outer diameter of the drill bit 1.

[0051] In actual use, a hole-reaming operation is adopted to reduce the lifting resistance of the hoisting mechanism. Since the outer diameter of the reaming blade 4 is larger than the outer diameter of the auger bit 1 and its axial length is smaller, the drill string can be lifted away from the bottom of the well by the axial length of the hoisting mechanism 3. The hoisting force of the drilling rig is much greater than that of the winch. At this time, the well diameter is larger than the outer diameter of the drill bit 1 and the auger 7, and the lifting resistance is greatly reduced.

[0052] Preferred, such as Figure 5 As shown, the anti-rotation mechanism 6 includes a ring seat 18, an anti-rotation rod 19, a lifting seat 20, and a lifting rod 21. The number of anti-rotation rods 19 and lifting rods 21 is the same, and there are multiple rods. The upper ends of the multiple lifting rods 21 are circumferentially and evenly connected to the outside of the lifting seat 20. The lower end of each of the multiple lifting rods 21 is connected to the outside of the ring seat 18 through an anti-rotation rod 19. The multiple anti-rotation rods 19 are circumferentially and evenly distributed and connected to the outside of the ring seat 18. Both the lifting seat 20 and the ring seat 18 are fitted with drill columns 22. The lifting seat 20 is connected to the winch 23 through a lifting wire rope 24.

[0053] In actual use, to prevent the hoisting wire rope 24 from getting tangled on the drill string 22 as the hoisting mechanism 3 rotates, an anti-rotation mechanism 6 is used. When the hoisting mechanism 3 engages with the drill bit 1 through the torque transmission structure 10, the anti-rotation rod 19 opens outward and adheres to the well wall under the action of gravity. Under the action of the frictional resistance of the well wall, the anti-rotation mechanism 6 cannot rotate with the intermediate tube 5, thus ensuring that the hoisting wire rope 24 connected to it does not get tangled on the drill string 22.

[0054] Preferably, the lifting rod 21 and the anti-rotation rod 19 are connected by a pin 17, and the anti-rotation rod 19 and the ring seat 18 are connected by a pin 17. This facilitates the up-and-down movement of the lifting rod 21, allowing it to be close to or away from the well wall.

[0055] Preferably, the intermediate pipe 5 is provided with an axial limiting component 15 for the anti-rotation mechanism; to prevent the lifting mechanism 3 from moving axially when rotating, thus affecting drilling.

[0056] Preferably, the upper end of the intermediate tube 5 is connected to an intermediate tube head 16, and the upper end of the intermediate tube 5 is connected to the lifting seat 20 through the intermediate tube head 16; the intermediate tube head 16 is stepped in shape with the outer diameter gradually decreasing from top to bottom, and the central shaft hole of the lifting seat 20 is stepped in shape with the outer diameter gradually increasing from top to bottom; the structure is simple and easy to connect, while satisfying the function of the anti-rotation mechanism 6 being able to rotate freely around the intermediate tube 5 as an axis, and at the same time limiting the axial movement distance of the anti-rotation mechanism 6.

[0057] Preferably, a pin 17 is provided on the upper part of the intermediate tube 5, and the pin 17 limits the axial movement distance of the anti-rotation mechanism 6.

[0058] Preferably, the ring seat 18 is tubular in shape, and the central shaft through hole of the ring seat 18 is a stepped hole. Multiple lifting lugs are evenly spaced on the outer circumference of the tubular shape, and the lifting lugs are connected to the anti-rotation rod 19. The stepped hole facilitates the connection of the intermediate tube 5, and the lifting lugs facilitate the connection of the anti-rotation rod 19, resulting in a simple structure.

[0059] Preferably, the anti-rotation rod 19 is rod-shaped with a pin hole on it. An arc-shaped rod is connected to the outer side of the rod, and the upper end of the arc-shaped rod extends inward. The pin hole facilitates the connection of a pin, and the arc-shaped rod facilitates close contact with or away from the wall. When close contact, it increases the contact area, and when away, it reduces frictional resistance.

[0060] In actual use, after drilling to the specified depth, the hoisting mechanism 3 is raised to the wellhead and the winch 23 is locked. The drill string 22 is then raised and disassembled on the drilling platform. After the drill bit 1 is pulled out of the wellhead, the hoisting mechanism 3 is lowered to the bottom, the hoisting wire rope 24 is removed, and the hoisting mechanism 3 and the auger drill bit 1 are raised to the drilling platform along with the remaining drill string 22 for disassembly.

[0061] In the description of this invention, it should be understood that if terms such as "upper," "inner," or "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the invention.

[0062] The above examples are merely illustrative of the present invention and do not constitute a limitation on the scope of protection of the present invention. All designs that are the same as or similar to the present invention are within the scope of protection of the present invention.

Claims

1. A set of supporting equipment for environmentally friendly drilling in soil layers, characterized in that: The system includes a drill bit (1), a lifting mechanism (3), a drill string (22), a lifting wire rope (24), and a winch (23). The lower part of the drill string (22) is connected to the upper part of the drill bit (1). The lifting mechanism (3) is sleeved on the outside of the drill string (22), and the lower part of the lifting mechanism (3) is sleeved on the outside of the upper part of the drill bit (1). The upper part of the lifting mechanism (3) is connected to the winch (23) through the lifting wire rope (24). The drill bit (1) includes a drill bit connecting section (9), which is sleeved on the lifting mechanism (3). The upper part of the drill bit connecting section (9) is threaded to the lower part of the drill string (22). A torque transmission component (10) is provided on the outer side of the middle part of the drill bit connecting section (9). The drill bit connecting section (9) and the lifting mechanism (3) are connected by the torque transmission component (10). The lifting mechanism (3) includes a middle tube (5). The drill string (22) and drill bit connection section (9) are connected from top to bottom inside the intermediate pipe (5). The upper end of the intermediate pipe (5) is connected to the anti-rotation mechanism (6). The drill bit (1) and the drill string (22) are connected from top to bottom outside the intermediate pipe (5). The drill string (22) drives the drill bit (1) to rotate for rotary drilling. The drill bit (1) drives the lifting mechanism (3) to rotate synchronously. The lifting mechanism (3) rotary digs and expands the hole and collects the soil debris. When the soil debris is full, the winch (23) is started. The winch (23) lifts the lifting mechanism (3) through the lifting wire rope (24) to bring the soil debris out of the well. After cleaning the soil debris stored on the lifting mechanism (3), the clean lifting mechanism (3) is quickly lowered to the bottom along the drill string (22) to start the next round of rotary drilling.

2. The supporting equipment for environmentally friendly drilling of soil layers as described in claim 1, characterized in that: The drill bit (1) also includes a cutting edge (8), and the cutting edge (8) is connected to the lower end of the drill bit connecting section (9).

3. The supporting equipment for environmentally friendly drilling in soil layers as described in claim 2, characterized in that: A reinforcing ring (2) is provided between the drill bit connecting section (9) and the cutting edge (8).

4. The supporting equipment for environmentally friendly drilling in soil layers as described in claim 3, characterized in that: The intermediate tube (5) is provided with a torque transmission structure (14) connected inside, and the torque transmission component (10) is engaged with the torque transmission structure (14).

5. The supporting equipment for environmentally friendly drilling in soil layers as described in claim 3, characterized in that: The enlarging blade (4) includes an enlarging blade sleeve (11) and an enlarging blade face (13). The enlarging blade sleeve (11) is fitted onto the outside of the intermediate tube (5). There are multiple enlarging blade faces (13), which are circumferentially and equally spaced on the outside of the enlarging blade sleeve (11).

6. The supporting equipment for environmentally friendly drilling in soil layers as described in claim 5, characterized in that: A reaming blade reinforcing plate (12) is provided between the lower surface of the reaming blade (13) and the outer side of the reaming blade sleeve (11).

7. The supporting equipment for environmentally friendly drilling in soil layers as described in claim 4, characterized in that: The outer diameter of the reaming blade (4) is larger than the outer diameter of the drill bit (1).

8. The supporting equipment for environmentally friendly drilling of soil layers as described in claim 4, characterized in that: The anti-rotation mechanism (6) includes a ring seat (18), an anti-rotation rod (19), a lifting seat (20), and a lifting rod (21). The number of anti-rotation rods (19) and lifting rods (21) is the same and there are multiple rods. The upper ends of the multiple lifting rods (21) are circumferentially and evenly connected to the outside of the lifting seat (20). The lower end of each of the multiple lifting rods (21) is connected to the outside of the ring seat (18) through an anti-rotation rod (19). The multiple anti-rotation rods (19) are circumferentially and evenly distributed and connected to the outside of the ring seat (18). The lifting seat (20) and the ring seat (18) are both fitted with drill strings (22). The lifting seat (20) is connected to the winch (23) through a lifting wire rope (24).

9. The supporting equipment for environmentally friendly drilling of soil layers as described in claim 8, characterized in that: The lifting rod (21) and the anti-rotation rod (19) are connected by a pin (17), and the anti-rotation rod (19) and the ring seat (18) are connected by a pin (17).

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