CN114673466A - Horizontal geological exploration equipment adopting coiled tubing and coring method - Google Patents
Horizontal geological exploration equipment adopting coiled tubing and coring method Download PDFInfo
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- CN114673466A CN114673466A CN202210596845.6A CN202210596845A CN114673466A CN 114673466 A CN114673466 A CN 114673466A CN 202210596845 A CN202210596845 A CN 202210596845A CN 114673466 A CN114673466 A CN 114673466A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005553 drilling Methods 0.000 claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 5
- 241001449342 Chlorocrambe hastata Species 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 3
- 241000251468 Actinopterygii Species 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 238000000605 extraction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 3
- 230000007723 transport mechanism Effects 0.000 description 3
- 244000309464 bull Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/16—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors for obtaining oriented cores
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- Geochemistry & Mineralogy (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
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Abstract
The invention discloses a horizontal geological survey device adopting a continuous pipe and a coring method, wherein the device comprises: the drilling machine comprises a chassis, a drilling frame, a power head, a continuous pipe, a conveying mechanism, an outer drill rod, coring equipment and a winding drum assembly; performing guided drilling by using a guide drilling tool and an inner flat hollow outer drill rod; conveying a continuous pipe in an area needing coring or prospecting; the coiled tubing may be transported to the drilling location by a coring barrel or other earth-boring equipment; the high pressure fluid delivered by the coiled tubing drives the coring apparatus, thereby driving the drilling rig to perform horizontal coring or other ground exploration requirements. The continuous pipe adopted by the invention is used for dragging, transmitting and correcting the continuous pipe through the power head assembly and the conveying mechanism drum assembly, so that the high-pressure fluid in the continuous pipe drives the coring equipment to efficiently convey the coring drilling tool in the coring equipment, the difficult problem of difficulty in conveying the coring drilling tool in a horizontal hole is effectively solved, and the horizontal coring drilling efficiency of the equipment is improved.
Description
Technical Field
The invention belongs to the technical field of horizontal drilling equipment, and particularly relates to horizontal geological exploration equipment adopting a continuous pipe and a coring method.
Background
With the continuous investment of national infrastructure, the construction requirements of highway railway tunnels, subways and sea-crossing tunnels are continuously and rapidly increased. The determination of the line planning, construction, supporting schemes and the like of tunnel engineering requires detailed and accurate geological data as support, and is essential for exploring geology and underground resources of underground engineering. Compared with vertical drilling, the horizontal geological exploration method has gradually replaced vertical drilling in the aspects of drilling efficiency, construction cost and the like in recent years, and plays an important role in geological exploration.
The existing horizontal rope coring technology utilizes a coring barrel and a continuous rope to perform coring operation. The method mainly comprises the following steps: (1) the thread between the core drill and the drill rod is disassembled; (2) putting the core into a core taking barrel; (3) connecting the fishing spearhead with the core barrel by taking water power as a conveying medium; (4) the power head drives the outer drill rod to drill horizontally; (5) after the core drilling is finished, the rope and the core taking barrel are recovered, and the core is taken out; (6) repeating the operations 2-5 until all coring plans are completed. Therefore, the existing horizontal line coring technology utilizes hydraulic transmission, and the water pressure is unstable along with the change of water flow and flow rate, so that the transmission efficiency of the driving fishing spearhead is low; the technology has high requirement on the surface roughness of the inner wall of the outer drill rod, and secondary processing is needed on the inner wall of the outer drill rod, so that the use cost of equipment is additionally increased; in addition, due to the instability factor of water pressure, when a hydraulic conveying technology is utilized, a core taking pipe is often blocked, and the operation efficiency of the whole drilling core taking is severely limited, so that the technology needs to be updated and broken through.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a horizontal geological prospecting device adopting a continuous pipe and a coring method, the continuous pipe adopted by the invention is used for drawing, conveying and correcting the continuous pipe through a power head assembly, a conveying mechanism and a winding drum assembly, so that high-pressure fluid in the continuous pipe drives the coring device, thereby efficiently conveying a coring drilling tool in the coring device, effectively solving the problem that the coring drilling tool is difficult to convey by a horizontal hole, greatly improving the horizontal coring drilling efficiency of the device and reducing the comprehensive construction cost.
The technical scheme is as follows: in a first aspect, the present invention provides a horizontal geological survey apparatus using coiled tubing, comprising:
the drilling machine comprises a drilling frame, a conveying mechanism fixedly arranged on the drilling frame, a power head assembly movably arranged on the drilling frame, an outer drill rod connected to one end of the power head assembly, and an outer drill bit connected to one end of the outer drill rod;
the bottom of the drilling frame is fixedly provided with a chassis, and one side of the top of the drilling frame is fixedly provided with a sliding rail matched with the power assembly;
the unit head assembly includes: the rotary drill rod drilling machine comprises a push-pull box body clamped on a slide rail, a push-pull motor fixedly arranged on the push-pull box body, a rotary box body fixedly arranged on the push-pull box body, and a rotary main shaft arranged on the rotary box body and connected with an outer drill rod;
the rotary main shaft and the outer drill rod are respectively of a hollow structure, one end of the interior of the outer drill rod is provided with a continuous pipe, and the other end of the interior of the outer drill rod is provided with a coring device;
one end of the continuous pipe is inserted into the coring equipment, the other end of the continuous pipe is wound on the winding drum assembly, and all middle sections of the continuous pipe are conveyed into the coring equipment through the conveying mechanism, the rotating main shaft and the outer drill rod.
In a further embodiment, the transport mechanism comprises: the conveying frame is fixedly installed on the drill frame, the upper group of rollers and the lower group of rollers are symmetrically arranged on the conveying frame, the clamping oil cylinder is fixedly installed on one side of the upper group of rollers, the power output end of the clamping oil cylinder is connected with the upper group of rollers, and then the upper group of rollers are driven to adjust the longitudinal position relative to the lower group of rollers, so that the distance between the upper group of rollers and the lower group of rollers is changed.
In a further embodiment, the conveying mechanism further comprises an upper roller motor and a lower roller motor, power output ends of the upper roller motor and the lower roller motor are in transmission connection with the upper roller and the lower roller respectively, so that the upper roller is driven to perform synchronous reverse motion relative to the lower roller, and finally the continuous pipe laid between the upper roller and the lower roller is conveyed.
In a further embodiment, the coring apparatus comprises: the core drilling machine comprises a mud motor, a core taking barrel and a core drilling tool, wherein the mud motor is arranged in the end, far away from a rotating main shaft, of an outer drill rod; one end of the mud motor is also provided with a fishing spearhead.
In a further embodiment, a cable bundle is also threaded through the continuous tube for transmitting digital signals.
In a further embodiment, the spool assembly comprises: the device comprises a support frame, a drum motor and a drum, wherein the support frame is arranged at one end of a conveying mechanism arranged on a chassis, the drum motor is installed on the support frame, and the drum is installed on the support frame and is in transmission connection with the power output end of the drum motor.
In a further embodiment, a rotating motor is further installed on the rotating box body, a driving pinion is meshed with a power output end of the rotating motor, a rotating gearwheel is meshed with one side of the driving pinion, the rotating gearwheel and the rotating main shaft are coaxially arranged, the rotating motor drives the rotating pinion to rotate, the rotating pinion further drives the rotating gearwheel to rotate, and finally power is transmitted to the rotating main shaft.
In a further embodiment, a rack is arranged on the drill frame, a push-pull pinion is meshed with a power output end of the push-pull motor, one side of the push-pull pinion is meshed with the rack, the push-pull pinion is driven to rotate by power of the push-pull motor, the push-pull pinion is driven to linearly move on the rack by the rotating force, and finally the power assembly is driven to linearly move along the sliding rail.
In a further embodiment, the mud motor is in communication with a pump station via a coiled tubing, and high pressure fluid generated by the pump station flows through the coiled tubing to the mud motor, thereby driving the mud motor to power the coring bit.
In a second aspect, the present invention provides a coring method using a horizontal geological survey apparatus of continuous tubing, based on the apparatus comprising: the drilling machine comprises a coiled tubing, a conveying mechanism, a power head assembly, an outer drill rod, an outer drill bit, coring equipment, a drill frame, a slurry motor, a coring barrel, a coring drill tool and a spearhead;
the discontinuous core-extracting step comprises: the power head assembly stops rotating after driving the outer drill rod and the outer drill bit to drill to the coring target position;
the coring equipment is a slurry motor and a coring barrel which are assembled in front of the continuous pipe, and the continuous pipe is communicated with the pump station;
conveying the continuous pipe, a slurry motor and a core barrel in front of the continuous pipe to a core taking position by using a conveying mechanism, and conveying a core drilling tool in the core barrel by using the fluid power in the continuous pipe so as to finish core drilling work;
the continuous core extracting step comprises the following steps: the detachable inner drill rod is arranged in the outer drill rod, and the power head assembly stops rotating after driving the outer drill rod and the outer drill bit to drill to the coring target position;
the coring equipment is characterized in that a fishing spearhead is additionally assembled in front of a continuous pipe, and the continuous pipe is communicated with a pump station;
when coring, the conveying mechanism is used for conveying the spearhead in front of the coiled tubing to the coring position to salvage the inner drill rod, after the spearhead is salvaged to the inner drill rod with the proper length of the core, the conveying mechanism recovers the coiled tubing, so that the spearhead and the inner drill rod are driven to lift up to move, and the inner drill rod is taken out;
and (4) resetting the coring position, assembling the inner drill rod, and performing the drilling and coring process again.
Has the beneficial effects that: compared with the prior art, the invention has the following advantages:
different from the traditional horizontal rope coring technology, the continuous pipe adopted by the invention is used for dragging, transmitting and correcting the continuous pipe through the power head assembly, the conveying mechanism and the winding drum assembly, so that high-pressure fluid in the continuous pipe drives the coring equipment, and the coring drilling tool in the coring equipment is conveyed efficiently, thereby effectively solving the problem that the horizontal hole is difficult to convey the coring drilling tool, greatly improving the horizontal coring drilling efficiency of the equipment, reducing the comprehensive construction cost and solving the problem of lower hydraulic conveying spearhead fishing efficiency; in practical application, the requirement on the surface roughness of the inner wall of the outer drill rod is not high, and only the inner flatness is ensured, so that the processing and manufacturing cost of the drill rod is greatly saved; and finally, connecting or pre-embedding the wire harness in the continuous pipe to perform horizontal geological exploration.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the horizontal geological survey apparatus of the present invention;
FIG. 2 is a schematic diagram of the structure of the power head and the drilling tool of the present invention;
FIG. 3 is a schematic diagram of a top view of the power head of the present invention;
FIG. 4 is a schematic view of the construction of the spool assembly of the present invention;
FIG. 5 is a schematic structural view of a coiled tubing threading harness of the present invention;
FIG. 6 is a schematic view of the construction of the transport mechanism of the present invention;
FIG. 7 is a schematic top view of the conveyor of the present invention;
FIG. 8 is a schematic view of the construction of the coring apparatus of the present invention;
FIG. 9 is a schematic diagram of the horizontal geological survey apparatus of the present invention.
Reference numerals: 1. Horizontal geological survey equipment; 11. a coiled tubing; 12. a conveying mechanism; 13. a power head assembly; 14. an outer drill rod; 15. an outer drill bit; 16. a coring device; 17. a drilling frame; 18. a chassis; 19. a spool assembly; 111. a continuous tube wall; 112. a wire harness; 121. a carriage; 122. clamping the oil cylinder; 123. a roller; 124. a roller motor; 131. a push-pull motor; 132. pushing and pulling the box body; 133. rotating the box body; 134. a rotating pinion gear; 135. rotating the bull gear; 136. a rotary motor; 137. rotating the main shaft; 138. a push-pull pinion; 161. a core drill; 162. a core taking barrel; 163. a mud motor; 164. fishing a spearhead; 171. a slide rail; 172. a rack; 191. a reel motor; 192. a reel; 193. a support frame.
Detailed Description
In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the following specific embodiments, but not limited thereto.
The present embodiment, as shown in fig. 1 to 9, provides a horizontal geological survey apparatus using a continuous pipe, comprising: coiled tubing 11, a conveyance mechanism 12, a power head assembly 13, an outer drill pipe 14, an outer drill bit 15, a coring device 16, a drill rig 17, a chassis 18, a reel assembly 19, a coiled tubing wall 111, a wire harness 112, a carriage 121, a clamp cylinder 122, a roller 123, a roller motor 124, a push-pull motor 131, a push-pull box 132, a rotating box 133, a rotating pinion 134, a rotating bull gear 135, a rotating motor 136, a rotating spindle 137, a push-pull pinion 138, a coring bit 161, a coring barrel 162, a mud motor 163, a spearhead 164, a slide rail 171, a rack 172, a reel motor 191, a reel 192, and a support shelf 193.
The conveying mechanism 12 is fixedly arranged on a drill frame 17, the power head assembly 13 is movably arranged on the drill frame 17, the outer drill rod 14 is connected to one end of the power head assembly 13, and the outer drill bit 15 is connected to one end of the outer drill rod 14;
a chassis 18 is fixedly arranged at the bottom of the drill frame 17, and a slide rail 171 matched with the power assembly is fixedly arranged at one side of the top of the drill frame 17;
the power head assembly 13 includes: a push-pull case 132, a push-pull motor 131, a rotary case 133, and a rotary spindle 137;
the push-pull box body 132 is clamped on the sliding rail 171, the push-pull motor 131 is fixedly arranged on the push-pull box body 132, the rotating box body 133 is fixedly arranged on the push-pull box body 132, and the rotating main shaft 137 is arranged on the rotating box body 133 and is connected with the outer drill rod 14;
the rotating main shaft 137 and the outer drill rod 14 are respectively of a hollow structure, one end inside the outer drill rod 14 is provided with the continuous pipe 11, and the other end inside the outer drill rod 14 is provided with the coring device 16; the continuous pipe wall 111 is made of high-strength material and is used for outputting high-pressure fluid;
one end of the coiled tubing 11 is inserted into the coring device 16 and the other end of the coiled tubing 11 is wound onto the reel assembly 19, with all intermediate sections of the coiled tubing 11 passing through the conveyor mechanism 12, the rotating spindle 137, the outer drill rod 14, and into the coring device 16.
The conveying mechanism 12 includes: the device comprises a conveying frame 121, a clamping oil cylinder 122, an upper group of rollers 123, a lower group of rollers 123 and a roller motor 124;
the conveying frame 121 is fixedly installed on the drill frame 17, the upper group of rollers 123 and the lower group of rollers 123 are symmetrically arranged on the conveying frame 121, the clamping oil cylinder 122 is fixedly installed on one side of the upper group of rollers 123, and the power output end of the clamping oil cylinder 122 is connected with the upper group of rollers 123, so that the upper group of rollers 123 are driven to adjust the longitudinal position relative to the lower group of rollers 123, and the distance between the upper group of rollers 123 and the lower group of rollers 123 is changed.
The roller motor 124 comprises an upper roller motor 124 and a lower roller motor 124, power output ends of the upper roller motor 124 and the lower roller motor 124 are respectively in transmission connection with the upper roller 123 and the lower roller 123, so that the upper roller 123 is driven to synchronously move in a reverse direction relative to the lower roller 123, and finally the coiled tubing 11 laid between the upper roller 123 and the lower roller 123 is conveyed, so that the coiled tubing 11 is advanced or retreated.
The coring apparatus 16 in the continuous core extraction scenario includes: a mud motor 163, a spearhead 164, a core barrel 162, a core drill 161;
the coring apparatus 16 in a discontinuous extraction coring scenario includes: a mud motor 163, a core barrel 162, a core drill 161;
the mud motor 163 is arranged inside the end of the outer drill pipe 14 far away from the rotating main shaft 137, the core barrel 162 is connected to the other end of the mud motor 163, and the core drill 161 is connected to the other end of the core barrel 162;
in the continuous core extraction scene, a fishing spear 164 is assembled at one end of the mud motor 163, a detachable inner drill rod is assembled inside the outer drill rod 14, the fishing spear 164 is assembled in front of the continuous pipe 11, and the continuous pipe 11 is communicated with a pump station; during coring, the conveying mechanism 12 is used for conveying the fishing spearhead 164 in front of the coiled tubing 11 to the coring position to fish the inner drill pipe;
in the discontinuous core extraction scene, a slurry motor 163 and a core extraction barrel 162 are assembled in front of the continuous pipe 11, and the continuous pipe 11 is communicated with a pump station; the coiled tubing 11 and the mud motor 163 and core barrel 162 in front of it are transported to the coring position by the transport mechanism 12, and the core bit 161 in the core barrel 162 is transported by the fluid power in the coiled tubing 11.
The continuous pipe 11 is also penetrated with a cable bundle for transmitting digital signals and embedding the wire harness 112 for facilitating scouting.
The spool assembly 19 includes: support bracket 193, reel motor 191, and reel 192.
The supporting frame 193 is close to one end of the drill rig 17, provided with the conveying mechanism 12, the reel motor 191 is installed on the supporting frame 193, the reel 192 is installed on the supporting frame 193 and is in transmission connection with the power output end of the reel motor 191, the continuous pipe 11 is wound on the reel 192, and the reel 192 is driven to rotate by the power output by the power end of the reel motor 191, so that the continuous extending continuous pipe 11 section is provided for the conveying mechanism 12 or the continuous pipe 11 section output from the conveying mechanism 12 is recovered.
Further, the rotating box 133 is further provided with a rotating motor 136, a power output end of the rotating motor 136 is engaged with a driving pinion, one side of the driving pinion is engaged with a rotating gearwheel 135, the rotating gearwheel 135 is coaxially arranged with the rotating spindle 137, and the rotating motor 136 drives the rotating pinion 134 to rotate, and the rotating pinion 134 further drives the rotating gearwheel 135 to rotate, so that power is finally transmitted to the rotating spindle 137, and the rotating spindle 137 drives the outer drill rod 14 and the outer drill bit 15 to perform rotary drilling.
The drill frame 17 is provided with a rack 172, a power output end of the push-pull motor 131 is meshed with the push-pull pinion 138, one side of the push-pull pinion 138 is meshed with the rack 172, the power of the push-pull motor 131 drives the push-pull pinion 138 to rotate, the rotating force drives the push-pull pinion 138 to perform linear motion on the rack 172, and finally the power assembly is driven to perform linear motion along the sliding rail 171, so that the power head assembly 13 moves on the drill frame 17.
The mud motor 163 communicates through the coiled tubing 11 with a pumping station that generates high pressure fluid that flows through the coiled tubing 11 to the mud motor 163, thereby driving the mud motor 163 to power the coring bit 161.
A coring method for a horizontal geological survey apparatus using a coiled tubing 11, comprising: a step of discontinuously extracting a drill core and a step of continuously extracting the drill core;
the discontinuous core-extracting step comprises: the power head assembly 13 stops the power head assembly 13 from rotating after driving the outer drill rod 14 and the outer drill bit 15 to drill to the coring target position;
assembling the mud motor 163 and the coring barrel 162 in front of the coiled tubing 11 and communicating the coiled tubing 11 with the pump station;
conveying the continuous pipe 11, a slurry motor 163 and the core barrel 162 in front of the continuous pipe to a core position by using the conveying mechanism 12, and conveying the core drill 161 in the core barrel 162 by using the fluid power in the continuous pipe 11 so as to complete core drilling;
the continuous core extracting step comprises the following steps: the detachable inner drill rod is arranged in the outer drill rod 14, and the power head assembly 13 stops the power head assembly 13 from rotating after the power head assembly 13 drives the outer drill rod 14 and the outer drill bit 15 to rotatably drill to a coring target position;
a fishing spearhead 164 is additionally assembled in front of the continuous pipe 11, and the continuous pipe 11 is communicated with a pump station;
during coring, the conveying mechanism 12 is used for conveying the fishing spear 164 in front of the coiled tubing 11 to a coring position to salvage an inner drill rod, after the fishing spear 164 is used for salvaging the inner drill rod with a proper length of a core, the conveying mechanism 12 recovers the coiled tubing 11, so that the fishing spear 164 and the inner drill rod are driven to lift up, and the inner drill rod is taken out;
and (4) resetting the coring position, assembling the inner drill rod, and performing the drilling and coring process again.
The invention is different from the traditional horizontal rope coring technology, the continuous pipe 11 adopted by the invention draws, transmits and corrects the continuous pipe 11 through the power head assembly 13, the conveying mechanism 12 and the reel assembly 19, so that the high-pressure fluid in the continuous pipe 11 drives the coring equipment 16, thereby efficiently conveying the coring drilling tool 161 in the coring equipment 16, effectively solving the problem that the horizontal hole conveys the coring drilling tool 161, greatly improving the horizontal coring drilling efficiency of the equipment, reducing the comprehensive construction cost and solving the problem that the hydraulic conveying spearhead 164 has lower efficiency; in addition, in practical application, the requirement on the surface roughness of the inner wall of the outer drill rod 14 is not high, and only the inner flatness is ensured, so that the machining and manufacturing cost of the drill rod is greatly saved; finally, the wiring harness 112 can be connected or embedded in the continuous pipe 11 for horizontal geological exploration.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A horizontal geological survey apparatus utilizing coiled tubing, comprising:
the drilling machine comprises a drilling frame, a conveying mechanism fixedly arranged on the drilling frame, a power head assembly movably arranged on the drilling frame, an outer drill rod connected to one end of the power head assembly, and an outer drill bit connected to one end of the outer drill rod;
the bottom of the drilling rig is fixedly provided with a chassis, and one side of the top of the drilling rig is fixedly provided with a slide rail matched with the power assembly;
the unit head assembly includes: the rotary drill rod drilling machine comprises a push-pull box body clamped on a slide rail, a push-pull motor fixedly arranged on the push-pull box body, a rotary box body fixedly arranged on the push-pull box body, and a rotary main shaft arranged on the rotary box body and connected with an outer drill rod;
the rotary main shaft and the outer drill rod are respectively of a hollow structure, one end of the interior of the outer drill rod is provided with a continuous pipe, and the other end of the interior of the outer drill rod is provided with a coring device;
one end of the continuous pipe is inserted into the coring equipment, the other end of the continuous pipe is wound on the winding drum assembly, and all middle sections of the continuous pipe are conveyed into the coring equipment through the conveying mechanism, the rotating main shaft and the outer drill rod.
2. The apparatus of claim 1, wherein the conveyor mechanism comprises: the conveying frame is fixedly installed on the drill frame, the upper group of rollers and the lower group of rollers are symmetrically arranged on the conveying frame, the clamping oil cylinder is fixedly installed on one side of the upper group of rollers, the power output end of the clamping oil cylinder is connected with the upper group of rollers, and then the upper group of rollers are driven to adjust the longitudinal position relative to the lower group of rollers, so that the distance between the upper group of rollers and the lower group of rollers is changed.
3. The apparatus of claim 2, wherein the conveyor mechanism further comprises an upper set of rollers and a lower set of rollers, and the power output ends of the upper set of rollers and the lower set of rollers are in transmission connection with the upper set of rollers and the lower set of rollers, respectively, so as to drive the upper set of rollers to synchronously move in opposite directions relative to the lower set of rollers, and finally convey the coiled tubing laid between the upper set of rollers and the lower set of rollers.
4. A horizontal geological survey apparatus using coiled tubing as claimed in claim 1 wherein said coring apparatus comprises: the core drilling machine comprises a mud motor, a core taking barrel and a core drilling tool, wherein the mud motor is arranged in the end, far away from a rotating main shaft, of an outer drill rod; one end of the mud motor is also provided with a fishing spearhead.
5. A horizontal geological survey apparatus according to claim 1, wherein said coiled tubing further comprises a cable harness for carrying digital signals.
6. The apparatus of claim 1, wherein the spool assembly comprises: the device comprises a support frame, a drum motor and a drum, wherein the support frame is arranged at one end of a conveying mechanism arranged on a chassis, the drum motor is installed on the support frame, and the drum is installed on the support frame and is in transmission connection with the power output end of the drum motor.
7. The apparatus of claim 1, wherein the rotary casing further comprises a rotary motor, a power output end of the rotary motor is engaged with a driving pinion, one side of the driving pinion is engaged with a rotary gearwheel, the rotary gearwheel is coaxially arranged with the rotary main shaft, the rotary motor drives the rotary pinion to rotate, the rotary pinion drives the rotary gearwheel to rotate, and finally, the power is transmitted to the rotary main shaft.
8. The apparatus according to claim 1, wherein the drill frame is provided with a rack, the power output end of the push-pull motor is engaged with a push-pull pinion, one side of the push-pull pinion is engaged with the rack, and the power of the push-pull motor drives the push-pull pinion to rotate, the rotating force drives the push-pull pinion to move linearly on the rack, and finally the power assembly is driven to move linearly along the slide rail.
9. The apparatus of claim 4, wherein the mud motor is in communication with a pump station via coiled tubing, and wherein high pressure fluid generated by the pump station flows through the coiled tubing to the mud motor, thereby driving the mud motor to power the coring bit.
10. A coring method of a horizontal geological survey apparatus using a coiled tubing, which is characterized in that a horizontal geological survey apparatus using a coiled tubing based on claim 4 comprises: the drilling machine comprises a coiled tubing, a conveying mechanism, a power head assembly, an outer drill rod, an outer drill bit, coring equipment, a drill frame, a slurry motor, a coring barrel, a coring drill tool and a spearhead;
the discontinuous core-extracting step comprises: after the power head assembly drives the outer drill rod and the outer drill bit to drill to the coring target position in a rotating mode, the power head assembly stops rotating;
the coring equipment is a slurry motor and a coring barrel which are assembled in front of the continuous pipe, and the continuous pipe is communicated with the pump station;
conveying the continuous pipe, a slurry motor and a core barrel in front of the continuous pipe to a core taking position by using a conveying mechanism, and conveying a core drilling tool in the core barrel by using the fluid power in the continuous pipe so as to finish core drilling work;
the continuous core extracting step comprises the following steps: the detachable inner drill rod is arranged in the outer drill rod, and the power head assembly stops rotating after driving the outer drill rod and the outer drill bit to drill to the coring target position;
the coring equipment is characterized in that a fishing spearhead is additionally assembled in front of a continuous pipe, and the continuous pipe is communicated with a pump station;
when the core is taken, a spear fishing head in front of the coiled tubing is conveyed to a core taking position by using the conveying mechanism to fish an inner drill rod, and after the spear fishing head is fished to the inner drill rod with a proper length of a core, the coiled tubing is recovered by the conveying mechanism, so that the spear fishing head and the inner drill rod are driven to lift up, and the inner drill rod is taken out;
and (4) resetting the coring position, assembling the inner drill rod, and performing the drilling and coring process again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210596845.6A CN114673466A (en) | 2022-05-30 | 2022-05-30 | Horizontal geological exploration equipment adopting coiled tubing and coring method |
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| CN202210596845.6A CN114673466A (en) | 2022-05-30 | 2022-05-30 | Horizontal geological exploration equipment adopting coiled tubing and coring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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