CN112253238B - Device and method for quickly installing cable in drill rod based on horizontal directional drilling investigation - Google Patents
Device and method for quickly installing cable in drill rod based on horizontal directional drilling investigation Download PDFInfo
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- CN112253238B CN112253238B CN202011094663.6A CN202011094663A CN112253238B CN 112253238 B CN112253238 B CN 112253238B CN 202011094663 A CN202011094663 A CN 202011094663A CN 112253238 B CN112253238 B CN 112253238B
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- cable
- drill rod
- hole
- television
- short joint
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/04—Distributing means for power supply in mines
- E21F17/06—Distributing electric power; Cable networks; Conduits for cables
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
Abstract
The invention discloses a device and a method for quickly installing cables in a drill rod based on horizontal directional drilling investigation, wherein the device comprises a drilling machine, a drilling machine power head and a drill rod, an electric slip ring is arranged between the drilling machine and the drilling machine power head, a wire coil is fixed on the outer surface of the drilling machine power head, and the front end of the drill rod is connected with a television instrument in a hole; a short joint is connected between a drilling machine power head and a drill rod, a notch is formed in the front end, connected with the drill rod, of the short joint, an inlet section of a television cable in a hole is led out from the notch of the short joint, is wound into a wire coil and then is connected with the electric slip ring, and then is connected with television data acquisition equipment in the hole through the electric slip ring; and the outlet section of the television cable in the hole is connected with the television instrument in the hole after passing through the inside of the drill rod. The device and the method for quickly installing the cable in the drill rod based on the horizontal directional drilling exploration solve the problems of wiring and threading of the television in the hole in the horizontal directional drilling exploration hole, protect the television cable from being abraded by the well wall and save the threading time.
Description
Technical Field
The invention belongs to the technical field of geotechnical engineering investigation, and particularly relates to a device and a method for quickly installing a cable in a drill rod based on horizontal directional drilling investigation.
Background
When the horizontal directional drilling technology is utilized to carry out geological exploration on tunnel engineering, equipment such as a comprehensive in-hole television and the like are combined to carry out video detection on the lithology of a horizontal directional drilling exploration hole surrounding rock, rock stratum cracks and broken zone distribution, in the detection process, exploration hole surrounding rock parameter information needs to transmit obtained data of an in-hole television instrument to a hole opening data acquisition part through a cable, therefore, a hole opening video data acquisition system is connected to one end of the cable, the television instrument in the other end connecting hole is slowly sent into the hole bottom along with a drill rod, and the process relates to the problems of wiring and threading in the horizontal exploration hole.
Because there are very big frictional force and extrusion force between horizontal directional drilling survey downthehole drilling rod outer wall and the country rock, the TV cable in the event is walked outside the pole and is ground off very easily, can only follow the threading in the drilling rod. When the cable is threaded from the drill pipe, the signal attenuation phenomenon in the transmission of the data in the cable is considered, so that a connector cannot be arranged on a television cable in the hole at the port of each drill pipe, otherwise, the signal attenuation is serious, and the difference between the actual data passing through the hole and the actual data is larger.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problem of providing a device and a method for quickly installing cables in a drill rod based on horizontal directional drilling exploration, so as to solve the threading problem of a television instrument in a hole in the horizontal directional drilling exploration hole, save the threading time of the television instrument in the hole in the horizontal directional drilling exploration process and ensure that the television instrument in the hole is smoothly carried out in the horizontal directional drilling exploration hole.
In order to achieve the purpose, the invention adopts the following technical measures:
the invention relates to a quick installation device for cables in a drill rod based on horizontal directional drilling investigation, which comprises a drilling machine, a drilling machine power head and a drill rod, wherein an electric slip ring is arranged between the drilling machine and the drilling machine power head, a wire coil is fixed on the outer surface of the drilling machine power head, and the front end of the drill rod is connected with a television instrument in a hole; a short joint is connected between the drilling machine power head and the drill rod, a slot is formed in the front end of the short joint connected with the drill rod, the inlet section of the television cable in the hole is led out from the slot of the short joint, is wound into the wire coil and then is connected with the electric slip ring, and then is connected with television data acquisition equipment in the hole through the electric slip ring; and the outlet section of the television cable in the hole is connected with the television instrument in the hole after passing through the drill rod.
Further, the slot passes through the threaded part of the short joint, and the television cable in the hole can be directly taken out from the threaded part.
Preferably, the television cable in the hole passes through the slot and then is subjected to position compensation through the filling part.
Furthermore, the electric slip ring is connected between the television data acquisition equipment in the hole and the wire coil and used for preventing the television cable in the hole from winding on the drill rod when the drill rod is pushed inwards.
The invention discloses a method for quickly installing a cable in a drill rod based on horizontal directional drilling investigation, which comprises the following steps:
firstly, dividing a television cable in a hole into a plurality of sections according to the shortest distance, arranging a short joint between a power head of a drilling machine and a drill rod, taking out one section of cable, penetrating an iron wire into the drill rod, penetrating the cable from the rear end of the drill rod, and penetrating the cable from the front end of the drill rod to enable the cable to penetrate through the drill rod; an inlet section of the cable is led out from the open slot of the short joint, is wound into a wire coil on a power head of the drilling machine, is connected with the cable on the wire coil and is connected with television data acquisition equipment in the hole through the electrical slip ring; the outlet section of the cable is connected with an in-hole television instrument, and the in-hole television instrument can be pushed inwards after the power head of the drilling machine, the short joint and the drill rod are connected in sequence;
after one drill rod is pushed, disconnecting the short joint from the drill rod, completely untying the cable in the wire coil, drawing out the filling part from the complementary position of the short joint, moving the cable out of the slot of the short joint, similarly drawing in the cable with the residual length from the front end of the drill rod by using an iron wire, drawing out the cable from the rear end, leading out the cable from the slot of the short joint, winding the cable on the wire coil, connecting the cable with television data acquisition equipment in the hole through an electric slip ring, and continuously drilling;
and after the television cable in the section of hole is pushed, another section of cable is taken in to continue drilling.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the device and the method for quickly installing the cable in the drill rod based on the horizontal directional drilling exploration solve the problems of wiring and threading of the in-hole television in the horizontal directional drilling exploration hole, protect the television cable from being abraded by a well wall, save the threading time and can be widely applied to the work of in-hole television instruments in the horizontal directional drilling exploration hole.
Drawings
Fig. 1 is a schematic structural diagram of a device for quickly installing a cable in a drill pipe based on horizontal directional drilling exploration.
FIG. 2 is a schematic view of the short joint slotting of the present invention.
Fig. 3 is a schematic diagram of the slot position compensation of the short joint of the present invention.
Fig. 4 is a cross-sectional view through the slot in fig. 3.
Fig. 5 is a threading schematic diagram when the original threading scheme does not design a slotted short joint.
Fig. 6 is a schematic diagram of the addition of a drill rod in the original threading scheme.
Wherein: 1-drilling machine, 2-in-hole television data acquisition equipment, 3-electric slip ring, 4-wire coil, 5-in-hole television cable, 6-drilling machine power head, 7-short joint, 8-slotting, 9-drilling rod, 10-in-hole television instrument, 11-filling part, 12-drilling rod, and 13-non-slotting threading hole.
Detailed Description
As shown in fig. 1 to 4, the quick installation device for cables in drill pipes based on horizontal directional drilling comprises a short joint 7 of a slot 8, wherein the slot at the front end of the short joint 7 is provided with a thread, and the slot 8 of the short joint 7 is subjected to position supplement through a filling part 11 before being connected with a drill pipe 9. The rear end of the short joint 7 is connected with a drilling machine power head 6, a wire coil 4 is fixed on the outer surface of the drilling machine power head 6, an electric slip ring 3 is arranged at the bottom of the drilling machine power head 6, and the electric slip ring 3 is fixed on the drilling machine 1. The TV cable 5 in the hole is connected with the TV data acquisition equipment 2 in the hole through the electric slip ring 3, the front end of the short joint 7 is connected with the drill rod 8 after position compensation, and the front end of the drill rod 9 is connected with the TV instrument 10 in the hole.
The electric slip ring 3 is connected between the television data acquisition equipment 2 in the hole and a wire coil 4 on a power head 6 of the drilling machine, is a device for transmitting signals between a fixed part and a rotating part of the rotating machine, and can prevent a television cable 5 in the hole from being wound on a drill rod 9 when the drill rod is pushed inwards.
The length of the short joint 7 is shortened as much as possible, the front end of the short joint is provided with a groove, the thread part at the front end is opened completely all the time, the television cable 5 in the hole can be taken out directly from the thread part, and the cable only needs to be threaded once and does not need to be threaded back and forth when one drill rod is drilled.
The specific well logging threading method comprises the following steps: because the phenomenon of signal attenuation can take place in the transmission of downthehole TV signal in the cable, so under the normal transmission condition of TV signal in guaranteeing the downthehole, at first, divide into a plurality of sections with one section downthehole TV cable 5 according to the shortest distance, set up short joint 7 between rig unit head 6 and the drilling rod 9, take out one of them section cable 5, penetrate in the drilling rod 9 with the iron wire, penetrate cable 5 from the drilling rod 9 rear end, and wear out from the front end, make the cable pass from the drilling rod 9 inside, the entry section of cable is drawn forth from the fluting 8 of short joint, twine drum 4 on rig unit head 6, link to each other the cable on drum 4 with electrical slip ring 3, rethread electrical slip ring 3 is connected with downthehole TV data acquisition device 2. The outlet section of the cable is connected with an in-hole television instrument 10, and the in-hole television instrument 10 can be pushed inwards after the power head 6 of the drilling machine, the short joint 7 after position supplement and the drill rod 9 are sequentially connected;
after the pushing of one drill rod 9 is finished, the joints of the short joint 7 and the drill rod 9 are opened, the cable in the wire coil 4 is completely untied, the filling part 11 is pulled out from the complementary position of the short joint, the cable 5 is moved out from the slot 8 of the short joint, the cable with the residual length is pulled in from the front end of the drill rod 9 by using an iron wire, pulled out from the rear end and led out from the slot 8 of the short joint, wound on the wire coil 4 and connected with the television data acquisition equipment 2 in the hole through the electric slip ring 3 to continue to drill; after the pushing of the section of cable 5 is finished, another section of cable is taken in to continue drilling.
Compared with the original method, the method of the invention has the advantages that: in the original threading method, because the television signals in the hole are transmitted in the cable and the phenomenon of signal attenuation occurs, one drill rod of the cable cannot be set into a joint during video detection in the hole, if the threading hole is not grooved, when the drill hole is subjected to video detection by using a horizontal directional drill, when one drill rod is completely pushed into the drill rod to prepare for adding the next drill rod (see figure 6), the cable 5 needs to pass back from the non-grooved threading hole 13 (see figure 5), and then sequentially passes through the newly added drill rod 12 and the threading hole and then is inserted into a wire coil. Therefore, as the cable is too long, most of time consumed by leading the drilling rod to and from the threading hole is consumed when the drilling rod is added, and the test is seriously influenced. According to the device and the method for quickly installing the cable in the drill rod based on the geological exploration of the horizontal directional drilling engineering, the time for threading back and forth can be saved, and television in the horizontal directional drilling can be carried out more smoothly.
The threading method of the invention is that the TV cable 5 in the hole passes through the inside of the drill rod from the TV instrument 10 in the hole at the front end, passes out from the notch of the short joint, is connected with the electric slip ring through the wire coil, and then is connected into the TV data acquisition equipment in the hole from the electric slip ring.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any modifications or substitutions that can be understood by those skilled in the art within the technical scope of the present invention should be included in the scope of the present invention.
Claims (4)
1. A method for quickly installing a cable in a drill rod based on horizontal directional drilling exploration is characterized by comprising the following steps: the device for quickly installing the cable in the drill rod based on the horizontal directional drilling exploration comprises a drilling machine, a drilling machine power head and a drill rod, wherein an electric slip ring is arranged between the drilling machine and the drilling machine power head, a wire coil is fixed on the outer surface of the drilling machine power head, and the front end of the drill rod is connected with a television instrument in a hole;
a short joint is connected between the drilling machine power head and the drill rod, a slot is formed in the front end of the short joint connected with the drill rod, the inlet section of the television cable in the hole is led out from the slot of the short joint, is wound into the wire coil and then is connected with the electric slip ring, and then is connected with television data acquisition equipment in the hole through the electric slip ring; the outlet section of the television cable in the hole is connected with the television instrument in the hole after passing through the inside of the drill rod; the method comprises the following steps:
A. firstly, dividing a television cable in a hole into a plurality of sections according to the shortest distance, arranging a short joint between a power head of a drilling machine and a drill rod, taking out one section of cable, penetrating an iron wire into the drill rod, penetrating the cable from the rear end of the drill rod, and penetrating the cable from the front end of the drill rod to enable the cable to penetrate through the drill rod; an inlet section of the cable is led out from the open slot of the short joint, is wound into a wire coil on a power head of the drilling machine, is connected with the cable on the wire coil and is connected with television data acquisition equipment in the hole through the electrical slip ring; the outlet section of the cable is connected with an in-hole television instrument, and the in-hole television instrument can be pushed inwards after the power head of the drilling machine, the short joint and the drill rod are connected in sequence;
B. after the pushing of one drill rod is finished, the short joint is disconnected from the drill rod, the filling part is pulled out from the complementary position of the short joint after the cable in the wire coil is completely untied, the cable is moved out from the open slot of the short joint, the cable with the residual length is pulled in from the front end of the drill rod by using an iron wire, pulled out from the rear end, led out from the open slot of the short joint, wound on the wire coil and connected with the television data acquisition equipment in the hole through an electric slip ring, and the drilling is continued;
C. and after the television cable in the section of hole is pushed, another section of cable is connected, and drilling is continued.
2. The method for quickly installing the cable in the drill pipe based on the horizontal directional drilling exploration, which is claimed in claim 1, is characterized in that: the slot passes through the threaded part of the short joint, and the television cable in the hole can be directly taken out from the threaded part.
3. The method for quickly installing the cable in the drill pipe based on the horizontal directional drilling exploration, according to claim 1, is characterized in that: and the TV cable in the hole passes through the slot and then is compensated through the filling part.
4. The method for quickly installing the cable in the drill pipe based on the horizontal directional drilling exploration, according to claim 1, is characterized in that: the electric slip ring is connected between the television data acquisition equipment in the hole and the wire coil and used for preventing the television cable in the hole from winding on the drill rod when the drill rod is pushed inwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094663.6A CN112253238B (en) | 2020-10-14 | 2020-10-14 | Device and method for quickly installing cable in drill rod based on horizontal directional drilling investigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094663.6A CN112253238B (en) | 2020-10-14 | 2020-10-14 | Device and method for quickly installing cable in drill rod based on horizontal directional drilling investigation |
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| Publication Number | Publication Date |
|---|---|
| CN112253238A CN112253238A (en) | 2021-01-22 |
| CN112253238B true CN112253238B (en) | 2022-07-26 |
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| CN202011094663.6A Active CN112253238B (en) | 2020-10-14 | 2020-10-14 | Device and method for quickly installing cable in drill rod based on horizontal directional drilling investigation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201460733U (en) * | 2009-07-23 | 2010-05-12 | 北京市三一重机有限公司 | Carbon brush gear of horizontal directional drill |
| CN101719644A (en) * | 2009-12-18 | 2010-06-02 | 曾凡林 | Groove with cracks in wall of plastic threading straight pipe or bent pipe |
| CN106014391B (en) * | 2016-07-26 | 2023-03-28 | 奥瑞拓能源科技股份有限公司 | Near-bit measurement while drilling system |
| CN206144551U (en) * | 2016-11-02 | 2017-05-03 | 中国电建集团成都勘测设计研究院有限公司 | Water pressure test in borehole system |
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Effective date of registration: 20210127 Address after: 430056 No. 18 Pioneering Road, Wuhan Economic and Technological Development Zone, Hubei Province Applicant after: CCCC SECOND HIGHWAY CONSULTANTS Co.,Ltd. Address before: 430050 498 parrot Avenue, Hanyang District, Wuhan, Hubei Applicant before: WUHAN ZHONGJIA GEOTECHNICAL ENGINEERING Co.,Ltd. |
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