CN116816264B - Geothermal drilling guiding tool - Google Patents
Geothermal drilling guiding tool Download PDFInfo
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- CN116816264B CN116816264B CN202310844006.6A CN202310844006A CN116816264B CN 116816264 B CN116816264 B CN 116816264B CN 202310844006 A CN202310844006 A CN 202310844006A CN 116816264 B CN116816264 B CN 116816264B
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- 238000005553 drilling Methods 0.000 title claims abstract description 124
- 238000009434 installation Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims description 35
- 230000000670 limiting effect Effects 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Earth Drilling (AREA)
Abstract
The invention discloses a geothermal drilling guiding tool, which comprises a first guiding component and a second guiding component, wherein the second guiding component is detachably connected to the bottom of the first guiding component; the first guide assembly comprises a connecting seat, a guide hole is formed in the upper surface of the connecting seat, an installation cavity is formed in the inner wall of the guide hole, a plurality of guide blocks are installed in the installation cavity and are uniformly distributed along the axial direction of the guide hole, the inner side end faces of the guide blocks are polymerized to form a guide ring, the guide ring is used for guiding a drilling rod, the second guide assembly comprises a fixing block, the head and the tail of the fixing block are connected through a connecting piece to form a circular ring, and the circular ring is fixed at the position of a drill bit and is used for guiding the drill bit; according to the invention, the first guide component guides and limits the drilling rod, and the second guide component guides and limits the drill bit in the well hole, so that the swing of the drilling rod and the drill bit in the drilling process is reduced, the deviation of the drilled well hole is reduced, the construction period is shortened, and the drilling cost is reduced.
Description
Technical Field
The invention relates to the technical field of drilling guiding equipment, in particular to a geothermal drilling guiding tool.
Background
During exploitation, the geothermal energy is collected by drilling a well at a corresponding position on the ground surface and opening a well hole to enable geothermal energy collection equipment to be introduced into the position where the underground geothermal energy is located.
When the surface well is drilled, the drilling rod needs to keep a certain coaxiality with the well hole when falling, the drilling rod is prevented from bending, the drill bit and the drilling rod are inclined, and if the drilling rod is inclined, gaps and abrasion are easily generated between a piston and a cylinder wall in a hydraulic system of the drilling rod; meanwhile, the drill bit and the drilling rod are inclined, so that larger deviation between an actual drilled hole and a planned borehole can occur, and the borehole with the deviation is communicated with a geothermal water area with a certain depth under the ground, so that the number of continuous drilling rods is increased, the drilling tools are prolonged, and the drilling cost is increased; thus, in geothermal brickwork, a steering tool is typically installed at the surface at the location where the borehole is planned, the steering tool steering and positioning the drill string so that the drill string maintains a degree of coaxiality with the borehole.
In the patent document with the publication number of CN213297868U, a novel drilling guiding tool is disclosed, a plurality of rotary drums are arranged in a guide seat, the rotary drums guide a drilling rod inserted into a guide pipe, so that the drilling rod and a well hole keep certain coaxiality, the limiting effect is achieved on the drilling rod, but the rotary drums can only horizontally rotate in the guide seat, the drilling rod can also move downwards along the well hole while horizontally rotating in the guide seat, after the outer wall of the rotary drum is attached to the outer wall of the drilling rod, the outer wall of the drilling rod is scratched, and the swinging amplitude of the drilling rod in the well hole is increased along with the rotation of the drilling rod, so that the straightness of the drilling rod is affected; meanwhile, in the device, the diameter of a guide ring formed by a plurality of rotary drums in the guide seat is fixed, and the diameter of the guide ring cannot be adjusted, so that the diameter of a drilling rod guided by the device is fixed, and the device has low practicability;
in the prior art, in the patent document of publication number CN103256006B, an active drill bit guider is disclosed, the guider is installed at the position of the drill bit, and can play a role in guiding the drill bit, reduce the swing of the drill bit, and improve the verticality of the well hole, but the guider only acts on the position of the drill bit, and can not guide the drilling rod, and further, the drilling rod swings in the drilling process, so as to influence the verticality of the well hole, when the deviation between the well hole and the planned well hole exceeds the standard, in order to ensure the requirement of the net diameter of the well hole, the drilling diameter must be further increased, which additionally increases the drilling engineering quantity, increases the post-wall filling quantity, further prolongs the drilling time, and increases the cost of drilling cost.
In summary, in the existing geothermal drilling process, the drilling guiding tool used can only guide the drilling rod or the drill bit singly, so that the guiding effect is poor, the actually drilled hole exceeds the allowable deviation range of the planned well hole, the drilling cost is high, and the construction period is long.
Disclosure of Invention
The invention mainly aims to provide a geothermal drilling guiding tool, which solves the problem that the existing drilling guiding tool can only guide a drilling rod or a drill bit singly.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
-a geothermal well drilling steering tool comprising a first steering assembly and a second steering assembly, the second steering assembly being detachably connected to the bottom of the first steering assembly, the first steering assembly being for steering a drilling rod at a wellhead, the second steering assembly being for steering a drill bit in a borehole;
the first guide assembly comprises a connecting seat, the upper surface of the connecting seat is provided with a guide hole, the inner wall of the guide hole is provided with a mounting cavity, a plurality of guide blocks are mounted in the mounting cavity, the guide blocks are uniformly distributed along the circumferential direction of the guide hole, the inner side end surfaces of the guide blocks are polymerized to form a guide ring, the guide ring is used for guiding the drilling rod, the guide blocks are connected with the connecting seat through a second adjusting assembly, the diameter of the guide ring is adjusted through the second adjusting assembly, a plurality of placing grooves are formed in the inner side end surfaces of each guide block, a first sphere is movably placed in each placing groove, and the outer wall of the first sphere is attached to the outer wall of the drilling rod;
the second guiding assembly comprises a fixed block, the head and the tail of the fixed block are connected through a connecting piece to form a circular ring, the circular ring is fixed at the position of the drill bit and used for guiding the drill bit, a protruding column is arranged on the fixed block, a second telescopic mechanism is connected to the protruding column, a second sphere is movably connected to the second telescopic mechanism, and the outer wall of the second sphere is attached to the inner wall of the well hole;
a connecting ring is arranged on the bottom end surface of the connecting seat and used for placing the fixed block;
the connecting seat comprises a connecting seat body and is characterized in that an accommodating cavity is formed in the bottom surface of the connecting seat body, and a first adjusting assembly is arranged in the accommodating cavity and used for adjusting the angle of the connecting seat body at the position of the well hole.
Further, the second adjusting component comprises an adjusting plate and a second gear, the adjusting plate and the second gear are rotatably installed in the installation cavity, the adjusting plate is embedded in the second gear, an arc-shaped groove is formed in the adjusting plate, connecting columns penetrate through the arc-shaped groove, the ends of the two ends of the connecting columns are fixedly connected with the top and the bottom of the guide block, and the connecting columns are located on one side, far away from the first sphere, of the guide block; the guide block is arranged at the top of the installation cavity and at the bottom of the installation cavity, guide grooves are formed in the end faces of the top and the bottom of the installation cavity, the top and the bottom of the guide block are correspondingly arranged in the guide grooves, the installation grooves are formed in the installation cavity, a first gear is rotatably arranged in the installation grooves, the first gear is meshed with a second gear, and the second gear is driven by a second driving piece.
Further, an accommodating groove is formed in the inner side end face of the guide block, and a clamping mechanism is arranged in the accommodating groove and used for clamping the drilling rod when the drilling rod is connected in a splicing mode;
the guide block is internally provided with a first connecting groove, the first connecting groove is communicated with the accommodating groove, a first telescopic mechanism is installed in the first connecting groove and connected with the clamping mechanism, and the clamping mechanism is pushed out of the accommodating groove and used for clamping the drilling rod.
Further, the clamping mechanism is a clamping plate, the first telescopic mechanism is an electric telescopic rod, one end of the electric telescopic rod is fixedly connected with the inner side end face of the first connecting groove, and the other end of the electric telescopic rod is fixedly connected with the clamping plate.
Further, the second telescopic mechanism comprises a connecting block, a second connecting groove is formed in one side face of the connecting block, the second connecting groove is rotationally connected with the second ball body, and a part of the second ball body is exposed out of the second connecting groove;
the side of connecting block opposite side is provided with the guide post, be provided with the mounting hole on the outer end terminal surface of projection post, swing joint in the mounting hole the guide post, be provided with the standing groove in the guide post, the standing groove inboard terminal surface with be connected with first telescopic link between the downthehole side terminal surface of mounting.
Further, the first adjusting component comprises a screw and a first driving piece, the screw and the first driving piece are installed in the accommodating cavity, the first driving piece is located above the screw, the first driving piece is connected with the screw, a sliding block is movably connected to the screw, and the bottom of the sliding block is exposed out of the accommodating cavity.
Further, a limiting plate is arranged at the position of the cavity opening of the accommodating cavity, a sliding groove is formed in the sliding block, and the limiting plate penetrates through the sliding groove and is used for preventing the sliding block from being separated from the accommodating cavity.
Further, the upper surface of the connecting seat is provided with a hanging ring.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the first guide component guides and limits the drilling rod, and the second guide component guides and limits the drill bit in the well hole, so that the swing of the drilling rod and the drill bit in the drilling process is reduced, the deviation of the drilled hole is reduced, the drilling efficiency is improved, the drilling construction period is shortened, and the drilling cost is reduced; meanwhile, the first ball is attached to the outer wall of the drilling rod in the first guide assembly, the first ball freely rotates at multiple angles in the mounting groove, friction between a tool and the outer wall of the drilling rod is reduced, and drilling efficiency is improved.
2. Be provided with second adjusting part in the first guide component, second adjusting part specifically is through the first gear rotation of second driving piece drive, and first gear drives the regulating plate through the meshing with the second gear and understand in the mounting groove, and then makes the guide block remove along the guide way in the mounting groove, changes the guide ring that six guide block inner terminal surfaces formed, and then makes first guide component can lead to the drilling rod of different diameters for this instrument uses more generally.
3. According to the invention, the clamping mechanism is arranged on the guide block, the clamping mechanism is connected with the guide block through the first telescopic mechanism, the clamping mechanism can be pushed out of the accommodating groove on the guide block through the first telescopic mechanism, the clamping mechanism can clamp the drilling rod, and the tool can be adjusted according to the diameter of the drilling rod, so that the practicability of the device is increased
4. Be provided with second telescopic machanism in the second direction subassembly, specifically in pushing out the guide post through first telescopic link in the mounting hole for the outer wall laminating of second spheroid is in the inner wall of borehole, and then struts the second direction subassembly, leads the drill bit, makes the second direction subassembly can be applicable to in the different wellholes.
5. According to the invention, the first adjusting component is arranged on the section of the bottom of the connecting seat, the first adjusting component specifically drives the screw rod to rotate through the first driving piece, the screw rod enables the sliding block to vertically move along the accommodating cavity, the bottom of the sliding block extends out of the accommodating cavity, and the levelness of the connecting seat on the ground surface at the position of the well hole is adjusted, so that the axial line degree of the guide hole on the connecting seat is consistent with that of the drilled hole, and the guide effect of the device is improved.
6. According to the invention, the connecting seat is provided with the hanging ring, and the hanging ring can facilitate moving the tool.
7. In the invention, the connecting ring arranged on the bottom end surface of the connecting seat can be detachably connected with the second guide assembly, when the tool is not used, the connecting ring can enable the second guide assembly to be connected with the connecting seat, so that the second guide assembly is prevented from being lost, the use of the tool is influenced, and the tool is also convenient to transport.
Drawings
FIG. 1 is a schematic illustration of one of the construction of a geothermal well drilling pilot tool;
FIG. 2 is a second schematic diagram of a geothermal well drilling pilot tool;
FIG. 3 is a schematic front view of a geothermal well-drilling steering tool;
FIG. 4 is a bottom partial cross-sectional view of a geothermal well-drilling steering tool;
FIG. 5 is a front partial schematic view of a first steering assembly in a geothermal well-drilling steering tool;
FIG. 6 is a schematic top cross-sectional view of a first steering assembly in a geothermal well-drilling steering tool;
FIG. 7 is a schematic cross-sectional view of a connection base in a geothermal well drilling pilot tool;
FIG. 8 is a schematic view of the structure of an adjusting plate in a geothermal well drilling pilot tool;
FIG. 9 is a schematic illustration of the connection of a guide block, clamping plate and guide ball in a geothermal well drilling guide tool;
FIG. 10 is a schematic view of the structure of an adjustment seat in a geothermal well drilling pilot tool;
FIG. 11 is a schematic view of the structure of a clamping plate in a geothermal well drilling pilot tool;
fig. 12 is a schematic view of a second steering assembly in a geothermal well drilling steering tool.
In the figure: 1. a connecting seat; 10. a weight reduction groove; 11. a hanging ring; 12. a guide hole; 120. a mounting cavity; 121. a guide groove; 122. a mounting groove; 13. a receiving chamber; 14. a placement cavity; 130. a limiting plate; 131. a partition plate; 2. a first adjustment assembly; 20. a slide block; 201. a chute; 21. a first driving member; 22. a screw rod; 3. a guide block; 30. a first connection groove; 31. a connecting column; 32. a mounting groove; 33. a receiving groove; 4. a second adjustment assembly; 40. a second driving member; 41. a first gear; 42. a second gear; 43. an adjusting plate; 430. an arc-shaped groove; 431. a connection hole; 44. a connecting shaft; 5. a clamping plate; 50. a connection station; 6. a first telescopic mechanism; 7. a first sphere; 8. a second guide assembly; 80. a fixed block; 801. a protruding column; 802. a mounting hole; 81. a second telescopic mechanism; 82. a connecting block; 820. a guide post; 821. a second connecting groove; 822. a placement groove; 83. a second sphere; 84. and a connecting piece.
Detailed Description
The invention discloses a drilling guiding tool of a geothermal drilling guiding tool, which guides a drilling rod on the ground surface at a wellhead through a first guiding component, and simultaneously sets a second guiding component at a drilling position in a well hole.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the invention discloses a geothermal drilling guiding tool, which comprises a first guiding component and a second guiding component 8, wherein the second guiding component 8 is detachably connected to the bottom of the first guiding component, the first guiding component is used for guiding a drilling rod at a wellhead, the second guiding component 8 is used for guiding a drill bit in a well hole, and through dual guiding of the drilling rod and the drill bit, swinging of the drilling rod and the drill bit in the geothermal drilling process is reduced, deviation of an actual drilled hole is reduced, drilling efficiency is improved, drilling period is shortened, and drilling cost is reduced.
Referring to fig. 1-10, the first guiding component comprises a connecting seat 1, a guiding hole 12 is vertically arranged at the central position of the upper surface of the connecting seat 1, an installation cavity 120 is arranged on the inner wall of the guiding hole 12, six guiding blocks 3 are installed in the installation cavity 120, the vertical section shape of each guiding block 3 is , the six guiding blocks 3 are uniformly distributed along the circumferential direction of the guiding hole 12, one side end surface of the opening end of each guiding block 3, which is not , is polymerized to form a guiding ring, the guiding ring is positioned at the central position of the guiding hole 12 and used for guiding a drilling rod, the swinging of the drilling rod in the drilling process is weakened, the coaxiality of the drilling hole and a planned drilling hole is improved, the guiding blocks 3 are connected with the connecting seat 1 through a second adjusting component 4, the diameter of the guiding ring can be adjusted through the second adjusting component 4, and the first guiding component can be adjusted according to the guiding rods with different diameters, and the practicability of the tool is improved; three mounting grooves 32 are formed in the opposite end faces of each guide block 3, first spheres 7 are movably mounted in each mounting groove 32, the first spheres 7 can freely rotate at multiple angles in the mounting grooves 32, the outer walls of the first spheres 7 are attached to the outer walls of the drilling rods, the direct contact surfaces of the outer walls of the drilling rods and the outer walls of the guide blocks 3 are avoided, and the outer walls of the drilling rods are prevented from being scratched in the guide process of the guide blocks 3.
Referring to fig. 4 and 12, the second guiding component 8 includes at least two fixing blocks 80, the transverse section of the fixing blocks 80 is a quarter arc ring, protruding plates are transversely arranged at two ends of the arc plate, the protruding plates of the fixing blocks 80 connect the head and the tail of the fixing blocks 80 to form a ring through connecting pieces 84, the fixing blocks 80 can be disassembled, the ring is fixed at the position of the drill bit and used for guiding the drill bit, and the swing of the drill bit in the well hole is reduced, in this embodiment, the connecting pieces 84 are bolts and nuts; the outer wall of the fixed block 80 is transversely provided with a protruding column 801, the outer end face of the protruding column 801 is transversely provided with a mounting hole 802, a second telescopic mechanism is connected in the mounting hole 802, one end of the second telescopic mechanism is fixedly connected to the inner side end face of the mounting hole 802, the other end of the second telescopic mechanism is movably connected with a second ball 83, one part of the second ball 83 exposes out of the outer end of the second telescopic mechanism and is used for being close to the inner wall of a borehole, and then a pilot bit is stabilized in the borehole.
Referring to fig. 5-7, a receiving cavity 13 is vertically arranged on the bottom surface of the connecting seat 1, a first adjusting component 2 is installed in the receiving cavity 13, and the first adjusting component 2 is used for adjusting the angle of the connecting seat 1 at the installation position, so that the axial direction of a guide hole 12 on the connecting seat 1 is consistent with the axis of a drilled hole, the deviation between an actual drilled hole and a planned hole is reduced, and the drilling cost is reduced.
Referring to fig. 1-10, the second adjusting component 4 includes an adjusting plate 43 and a second gear 42, the adjusting plate 43 and the second gear 42 are both rotatably installed in the installation cavity 120, the adjusting plate 43 is embedded in the second gear 42, three connecting holes 431 are transversely formed in the inner side wall of the adjusting plate 43, countersunk screws are installed in the connecting holes 431, the second gear 42 and the adjusting plate 43 are fixed together by the city casting screws, so that the adjusting plate 43 and the adjusting plate 43 can synchronously rotate in the installation cavity 120, six arc grooves 430 are vertically formed in the upper surface of the adjusting plate 43, the six arc grooves 430 are uniformly distributed around the central point of the adjusting plate 43 in the circumferential direction, connecting columns 31 are penetrated in the arc grooves 430, two end heads of the connecting columns 31 are connected with guide blocks 3, guide grooves 121 are formed in the positions corresponding to the guide blocks 3 on the top and bottom end surfaces of the installation cavity 120, the top and the bottom of the guide blocks 3 are correspondingly installed in the guide grooves 121, when the adjusting plate 43 rotates in the installation cavity 120, the connecting columns 31 are moved along the arc grooves 430, and further the guide blocks 3 are driven to move in the guide grooves 121, and further the diameters of the guide blocks 3 are changed, so that the diameter of the drilling tool can not be changed, and the diameter of the drilling tool is changed, and the drilling tool is different from that the diameter of the tool is different; the inner wall of the mounting cavity 120 is provided with a mounting groove 122, a connecting shaft 44 is vertically arranged in the mounting groove 122, the connecting shaft 44 can rotate in the mounting groove 122, a first gear 41 is sleeved on the connecting shaft 44, the first gear 41 is meshed with a second gear 42, the second gear 42 can be driven to rotate through the rotation of the first gear 41, and then the adjusting plate 43 is driven to rotate; the connecting seat 1 is provided with a placement cavity 14 below the mounting groove 122, a second driving member 40 is installed in the placement cavity 14, the second driving member 40 is connected with the connecting shaft 44, and further drives the second gear 42 to rotate, and in this embodiment, the second driving member 40 adopts a servo motor.
Referring to fig. 9 and 10, the right end face of the guide block 3 is provided with a receiving groove 33, and a clamping mechanism is installed in the receiving groove 33, and is used for clamping the drilling rod when the drilling rod needs to be connected in the drilling process.
Referring to fig. 5, 9 and 10, a first connecting groove 30 is transversely arranged in the guide block 3, the first connecting groove 30 transversely penetrates through the right end face of the guide block 3, so that the first connecting groove 30 is communicated with a containing groove 33, a first telescopic mechanism 6 is arranged in the first connecting groove 30, the first telescopic mechanism 6 can transversely stretch and retract in the first connecting groove 30, and a clamping mechanism is connected to the position, located at the notch of the first connecting groove 30, of the first telescopic mechanism 6 and used for pushing the clamping mechanism out of the containing groove 33 to clamp a drilling rod.
Referring to fig. 5, 9, 10 and 11, the clamping mechanism is a clamping plate 5, and when the drilling rod is spliced in the geothermal drilling process, the upper end head of the drilling rod is clamped by the clamping plate 5 and then spliced; be provided with two connection tables 50 on the terminal surface of the one end of grip block 5, two connection tables 50 set up with respect to the transverse center line symmetry of grip block 5, first telescopic machanism 6 is electric telescopic handle, electric telescopic handle's flexible head end is installed on connection table 50, tail end fixed connection is on the inboard terminal surface of first spread groove 30, electric telescopic handle can push out grip block 5 holding tank 33 for grip block 5 can carry out the centre gripping to the drilling rod, and the device can be adjusted according to the diameter size of drilling rod, has increased this device's practicality.
Referring to fig. 2, 4 and 12, the second telescopic mechanism comprises a connecting block 82, a second connecting groove 821 is formed on the outer side surface of the connecting block 82, a second ball 83 is connected in the second connecting groove 821, a part of the second ball 83 exposes out of the second connecting groove 821, the second ball 83 can freely rotate in multiple directions in the second connecting groove 821, and friction force between the second guide assembly 8 and the inner wall of the well hole is reduced; the lateral end face of the other side of the connecting block 82 is transversely provided with a guide post 820, the outer end face of the protruding post 801 is transversely provided with a mounting hole 802, the guide post 820 is movably mounted in the mounting hole 802, the guide post 820 can move along the mounting hole 802, a placing groove 822 is transversely arranged in the guide post 820, the placing groove 822 transversely penetrates through the inner side end face of the guide post 820, a first telescopic rod 81 is connected between the inner side end face of the placing groove 822 and the inner side end face of the mounting hole 802, the telescopic head end of the first telescopic rod 81 is fixedly connected onto the inner side end face of the mounting hole 802, the tail part of the first telescopic rod 81 is fixedly connected onto the inner side end face of the placing groove 822, the guide post 820 can be pushed out of the mounting hole 802 through the first telescopic rod 81, the outer wall of the second sphere 83 is attached to the inner wall of a well hole, the second guide assembly 8 is further spread, swinging of the drill bit in the well hole is reduced, and deviation of the actual well drilling hole and planned well hole is reduced.
Referring to fig. 5 and 7, the first adjusting component 2 includes a screw 22 and a first driving member 21, the screw 22 is vertically installed in the accommodating cavity 13, a partition plate 131 is disposed in the accommodating cavity 13 near the top end face of the accommodating cavity, the first driving member 21 is installed on the upper surface of the partition plate 131, and an output shaft of the first driving member 21 is vertically downward and connected with the upper end of the screw 22 to drive the screw 22 to rotate, and in this embodiment, a private clothes motor adopted by the first driving member 21 is adopted; the sliding block 20 is movably connected to the screw rod 22 through threads, the bottom of the sliding block 20 is exposed out of the accommodating cavity 13, when the first guiding assembly guides the drilling rod, the bottom end face of the sliding block 20 is in contact with the ground at the well hole, so that the sliding block 20 can vertically move in the accommodating cavity 13, the levelness of the connecting seat 1 at the well hole on the ground surface is adjusted through rotation of the screw rod 22, the axial line of the guiding hole 12 on the connecting seat 1 is kept consistent with that of the drilling hole, and the guiding effect of the device is improved.
Referring to fig. 5 and 7, a limiting plate 130 is transversely arranged at the position of the cavity opening in the accommodating cavity 13, two ends of the limiting plate 130 are fixedly connected to two opposite side end surfaces in the accommodating cavity 13, a sliding groove 201 is arranged at the position corresponding to the limiting plate 130 on the side end surface of the sliding block 20, the limiting plate 130 penetrates through the sliding groove 201 and is rotationally connected with the lower end head of the screw rod 22, the limiting plate 130 is used for preventing the sliding block 20 from separating from the accommodating cavity 13, and the sliding block 20 is prevented from separating from the screw rod 22 in the moving process of the screw rod 22, so that the first adjusting component 2 loses an adjusting function.
Referring to fig. 1 and 7, a hanging ring 11 is arranged on the upper surface of the connecting seat 1 near the outer wall of the connecting seat, the hanging ring 11 can facilitate movement of the connecting seat 1, a weight reduction groove 10 is vertically arranged on the upper surface of the connecting seat 1, and the weight reduction groove 10 is also arranged below the mounting cavity 120 in the connecting seat 1, so that the weight of the connecting seat 1 is reduced, and the connecting seat 1 is easy to move and saves labor.
Referring to fig. 2, 4 and 12, a connecting ring is arranged on the bottom end surface of the connecting seat 1 at the central position thereof, the inner diameter of the connecting ring is the same as that of the guide hole 12, the connecting ring is used for placing the fixing block 80, a clamping groove is formed in the inner wall of the fixing block 80, the connecting ring is clamped in the clamping groove, and when the tool is not used, the second guide assembly 8 is installed on the bottom end surface of the connecting seat 1 through the clamping groove and the connecting ring, so that the second guide assembly 8 is prevented from being lost, and the use of the tool is prevented from being influenced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A geothermal drilling steering tool, characterized by comprising a first steering assembly and a second steering assembly (8), wherein the second steering assembly (8) is detachably connected to the bottom of the first steering assembly, the first steering assembly is used for steering a drilling rod at a wellhead, and the second steering assembly (8) is used for steering a drill bit in a borehole;
the first guide assembly comprises a connecting seat (1), a guide hole (12) is formed in the upper surface of the connecting seat (1), an installation cavity (120) is formed in the inner wall of the guide hole (12), a plurality of guide blocks (3) are installed in the installation cavity (120), the guide blocks (3) are uniformly distributed along the circumferential direction of the guide hole (12), the inner side end surfaces of the guide blocks (3) are polymerized to form a guide ring, the guide ring is used for guiding a drilling rod, the guide blocks (3) are connected with the connecting seat (1) through a second adjusting assembly (4), the diameter of the guide ring is adjusted through the second adjusting assembly (4), a plurality of placing grooves (32) are formed in the inner side end surfaces of each guide block (3), a first ball body (7) is movably placed in the placing grooves (32), and the outer wall of the first ball body (7) is attached to the outer wall of the drilling rod;
the second adjusting component (4) comprises an adjusting plate (43) and a second gear (42), the adjusting plate (43) and the second gear (42) are rotatably installed in the installation cavity (120), the adjusting plate (43) is embedded in the second gear (42), an arc groove (430) is formed in the adjusting plate (43), a connecting column (31) is arranged in the arc groove (430) in a penetrating mode, two end heads of the connecting column (31) are fixedly connected with the top and the bottom of the guide block (3), and the connecting column (31) is located on one side, far away from the first sphere (7), of the guide block (3); guide grooves (121) are formed in the end faces of the top and the bottom of the mounting cavity (120) and correspond to the guide blocks (3), the top and the bottom of the guide blocks (3) are correspondingly mounted in the guide grooves (121), mounting grooves (122) are formed in the mounting cavity (120), a first gear (41) is rotatably mounted in the mounting grooves (122), the first gear (41) is meshed with the second gear (42), and the first gear (41) is driven by a second driving piece (40);
the second guiding assembly (8) comprises a fixed block (80), the head and the tail of the fixed block (80) are connected through a connecting piece (84) to form a circular ring, the circular ring is fixed at the position of the drill bit and is used for guiding the drill bit, a protruding column (801) is arranged on the fixed block (80), a second telescopic mechanism (81) is connected to the protruding column (801), a second sphere (83) is movably connected to the second telescopic mechanism (81), and the outer wall of the second sphere (83) is attached to the inner wall of the well hole;
a connecting ring is arranged on the bottom end surface of the connecting seat (1) and used for placing the fixed block (80);
the bottom surface of the connecting seat (1) is provided with a containing cavity (13), a first adjusting component (2) is arranged in the containing cavity (13), and the first adjusting component (2) is used for adjusting the angle of the connecting seat (1) at the position of the well hole;
the first adjusting component (2) comprises a screw (22) and a first driving piece (21), the screw (22) and the first driving piece (21) are installed in the accommodating cavity (13), the first driving piece (21) is located above the screw (22), the first driving piece (21) is connected with the screw (22), a sliding block (20) is movably connected to the screw (22), and the bottom of the sliding block (20) is exposed out of the accommodating cavity (13).
2. -geothermal drilling guiding tool according to claim 1, characterized in that the guiding block (3) is provided with a receiving groove (33) on the inner end surface, in which receiving groove (33) a clamping mechanism is mounted for clamping the drilling rod when the drilling rod is spliced;
be provided with first spread groove (30) in guide block (3), first spread groove (30) with holding tank (33) intercommunication, install first telescopic machanism (6) in first spread groove (30), first telescopic machanism (6) connect fixture, be used for with fixture release outside holding tank (33), with the drilling rod centre gripping.
3. A geothermal drilling guiding tool according to claim 2, characterized in that the clamping mechanism is a clamping plate (5), the first telescopic mechanism (6) is an electric telescopic rod, one end of the electric telescopic rod is fixedly connected with the inner side end surface of the first connecting groove (30), and the other end is fixedly connected with the clamping plate (5).
4. -geothermal well drilling guiding tool according to claim 1, characterized in that the second telescopic mechanism (81) comprises a connecting block (82), a second connecting groove (821) is provided on the side of one side of the connecting block (82), the second connecting groove (821) is rotationally connected to the second sphere (83), and a part of the second sphere (83) is exposed outside the second connecting groove (821);
be provided with guide post (820) on the side of connecting block (82) opposite side, be provided with mounting hole (802) on the outer end terminal surface of protruding post (801), swing joint in mounting hole (802) guide post (820), be provided with standing groove (822) in guide post (820), standing groove (822) inboard terminal surface with be connected with first telescopic link between the inboard terminal surface of mounting hole (802).
5. A geothermal well drilling guiding tool according to claim 1, characterized in that a limiting plate (130) is arranged at the position of the mouth of the receiving chamber (13), a chute (201) is arranged on the slide (20), and the limiting plate (130) passes through the chute (201) for preventing the slide (20) from being separated from the receiving chamber (13).
6. A geothermal well drilling guiding tool according to claim 1, characterized in that the connection socket (1) is provided with a lifting ring (11) on its upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310844006.6A CN116816264B (en) | 2023-07-11 | 2023-07-11 | Geothermal drilling guiding tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310844006.6A CN116816264B (en) | 2023-07-11 | 2023-07-11 | Geothermal drilling guiding tool |
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| CN116816264A CN116816264A (en) | 2023-09-29 |
| CN116816264B true CN116816264B (en) | 2024-02-02 |
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| KR101087161B1 (en) * | 2011-02-16 | 2011-11-25 | (주)삼일이엔씨 | Guide apparatus for adaptively drilling in various figures and conditions of ground |
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| Publication number | Publication date |
|---|---|
| CN116816264A (en) | 2023-09-29 |
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