CN203334955U - Drilling device for horizontal directional drilling penetration - Google Patents
Drilling device for horizontal directional drilling penetration Download PDFInfo
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- CN203334955U CN203334955U CN2013203160681U CN201320316068U CN203334955U CN 203334955 U CN203334955 U CN 203334955U CN 2013203160681 U CN2013203160681 U CN 2013203160681U CN 201320316068 U CN201320316068 U CN 201320316068U CN 203334955 U CN203334955 U CN 203334955U
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- horizontal directional
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Abstract
The utility model discloses a drilling device for horizontal directional drilling penetration. In order to improve stability of the hole wall of a drilled hole and to reduce the risk of penetration construction, the drilling device for horizontal directional drilling penetration is designed. According to the drilling device for horizontal directional drilling penetration, a main shaft, a conical breaking mechanism, a cutterhead and a traction drill rod of a horizontal directional drill are connected with the front portion of a cabin wall of the interior of a body, a cutterhead driving mechanism, a water feeding pipe and a water discharging pipe are connected with the rear portion of the cabin wall of the interior of the body, the rear end of the body is connected with a short dragging pipe section, a grouting hole is formed in the short dragging pipe section, a grouting pipe is arranged inside the short dragging pipe section, and the rear end of the short dragging pipe section is connected with a penetrating pipeline. The drilling device for horizontal directional drilling penetration is used for horizontal directional drilling penetration of a pipeline with the diameter of more than 400mm, and can carry out one-time hole broadening on the drilled hole to form the drilled hole with the hole-forming size, the pipeline can be directly dragged back to enter the drilled hole, laying is accomplished, a gap between the inner wall of the drilled hole and the penetration pipeline is filled, and drilling cuttings are discharged to the soil outlet end. The drilling device for horizontal directional drilling penetration can improve the stability of the hole wall of the drilled hole, reduce the construction risk caused by hole collapse, reduce construction cost, protect the environment, achieve large-diameter long-distance pipe penetration under the conditions of the unconsolidated formation and the hard-rock formation, and expand the range of application of the horizontal directional drilling method.
Description
Technical field
The utility model relates to a kind of Pipeline Crossing by Horizontal Directional Drilling rig, belongs to non-excavation crossing construction technical field.
Background technology
At present, for the horizontal directional drill construction technology of the above crossline of diameter 400mm, be divided into and bore pilot hole, reaming and return and drag three phases, first adopt horizontal directional drilling machine to bore a pilot hole along planned course; Then, at the end that is unearthed, drilling rod is connected with reamer, rig traction drilling rod, drilling rod drives reamer and enlarges step by step boring along passing through track, and every grade of about 150mm of reaming, treat 1.5 times of crossline external diameter or be greater than pipeline external diameter 300mm until boring aperture reaches; Finally, at the end that is unearthed, with drilling rod, connect crossline, crossline is pulled in boring and completed pipeline laying.
The weak point of said method is: 1, in reaming with return and to drag the stage, borehole wall only depends on liquid mud to support, for scall, be difficult to keep for a long time borehole wall stable, and the classification reaming can increase the disturbance to stratum, extend boring from the steady time, increase the risk of passing through failure that collapse hole causes.2, the drilling cuttings cut in boring procedure suspends by mud, and takes outside boring by the mobile of mud.For cobble and gravel stratum, owing to the drilling cuttings of large particle diameter can't being suspended and discharge boring, therefore lock of tool drilling very easily occurs, be not suitable for directly adopting Pipeline Crossing by Horizontal Directional Drilling.3, the stratum of rock strength higher (being greater than 50MPa) is passed through, and the drilling tool cutting moment of torque is large, when the crossline diameter is larger, can be subject to the drilling tool torque limited, is not suitable for the horizontal directional drill method.4,, in crossing process, mud works to carry drilling cuttings and stable hole wall.For the ability that improves mud suspension drilling cuttings will improve mud viscosity, reduce the mobility of mud, on the other hand for making mud will reduce the viscosity of mud in lower pressure current downflow on the one hand.For solving this contradiction, can only improve mud property, increase swell soil and additive amount, thereby strengthen construction cost.
Summary of the invention
The purpose of this utility model is to provide a kind of Pipeline Crossing by Horizontal Directional Drilling rig, to improve the stability of borehole wall, reduces the risk of crossing construction.
Technology contents of the present utility model is as follows:
The body interior of this rig is separated by the cabin wall, and cabin wall front surface connects conical breaker structure and main shaft, and front-end of spindle connects cutterhead and horizontal directional drill machine travel drilling rod, between the suction of conical breaker structure and cabin wall, is the muddy water storehouse, and the muddy water storehouse is provided with mud suction mouth.Wall rear surface, cabin connects cutter plate driver mechanism, is communicated with the water service pipe in muddy water storehouse and the gutter that is communicated with mud suction mouth, connects gravel pump on gutter.The body rear end connects the hauling pipe pipe nipple, and hauling pipe pipe nipple side face is provided with injected hole, is provided with the grouting pressure adjusting device and the Grouting Pipe that connect injected hole in the hauling pipe pipe nipple, and hauling pipe pipe nipple rear end connects crossline.
The beneficial effects of the utility model are as follows:
Borehole wall can obtain the support of crossline and high viscosity mud in time, can guarantee that hole wall is stable, reduces the construction risk caused because of collapse hole.Drilling cuttings drains into ground by special drainage pipe after the gravel pump pressurization, can not be deposited in boring, can reduce the construction risk that bit freezing causes.Water and bentonite consumption are few, can reduce construction cost, protection of the environment.For different stratigraphic types, drilling diameter only need be greater than crossline external diameter 50～300mm, becomes hole dimension little.Low to rig and the requirement of mud pump delivery, mud flow rate is little.Low to the construction plant requirement, pass through prefabricated the reaching back of pipeline section sectional and drag.Can realize that major diameter, long-distance pipe under bad ground (gravel, cobble, hard rock) condition pass through, and can enlarge the range of application of horizontal directional drill method.
The accompanying drawing explanation
Fig. 1 is Pipeline Crossing by Horizontal Directional Drilling rig structural representation.
The specific embodiment
Embodiment:
With reference to Fig. 1, embodiment of the present utility model is further illustrated:
This rig comprises muddy water storehouse 1, mud suction mouth 2, body 3, hauling pipe pipe nipple 4, main shaft 5, cutterhead 6, conical breaker structure 7, cabin wall 8, driving mechanism 9, gravel pump 10, injected hole 11, grouting pressure adjusting device 12, Grouting Pipe 13, water service pipe 14 and gutter 15:
The concrete construction method of this rig is as follows:
Embodiment 1:
The stratum of passing through is mud, silty clay.At first in the unearthed preparation of having held.Lay water service pipe, gutter, Grouting Pipe and supply line in the crossline of end that is unearthed; Water service pipe in crossline, gutter, Grouting Pipe and supply line are connected with water service pipe 14, gutter 15 and the Grouting Pipe 13 of this rig, by 4 welding of the hauling pipe pipe nipple of crossline and this rig end.After horizontal directional drilling machine completes the pilot hole operation, being unearthed, end connects this rig.With horizontal directional drill machine travel drilling rod, with drilling rod draw this rig enter operating pit start the driving.This rig cutting stratum enlarges boring.Driving mechanism 9(MTR) drive cutterhead 6 cutting stratum, the required high-pressure slurry of MTR is provided by drilling rod by horizontal directional drilling machine.Mud, by the nozzle ejection on cutterhead 6 surfaces, mixes with drilling cuttings in the muddy water storehouse 1 of rig front end, by mud suction mouth 2, enters gutter 15, after gravel pump 10 pressurizations, drains into the end that is unearthed.This rig tunnels and draws crossline until end horizontal directional drilling machine one side of burying completes crossing construction.
Embodiment 2:
The stratum of passing through is flour sand, fine sand, medium sand, coarse sand.At first in the unearthed preparation of having held.Lay water service pipe, gutter, Grouting Pipe and supply line in the crossline of end that is unearthed; Water service pipe in crossline, gutter, Grouting Pipe and supply line are connected with water service pipe 14, gutter 15 and the Grouting Pipe 13 of this rig, crossline is connected with the hauling pipe pipe nipple 4 of this rig end.After horizontal directional drilling machine completes the pilot hole operation, being unearthed, end connects this rig.With horizontal directional drill machine travel drilling rod, with drilling rod draw this rig enter operating pit start the driving.This rig cutting stratum enlarges boring.Driving mechanism 9(MTR) drive cutterhead 6 cutting stratum, the required high-pressure slurry of MTR is provided by drilling rod by horizontal directional drilling machine.After the nozzle ejection of mud by cutterhead 6 surfaces, in the muddy water storehouse 1 of rig front end, with drilling cuttings, mix, by mud suction mouth 2, enter gutter 15, after gravel pump 10 pressurizations, drain into the end that is unearthed.Thixotropic slurry injects through Grouting Pipe 13 at the end that is unearthed, the space of being injected between crossline and borehole wall by injected hole 11.This rig tunnels and draws crossline until end horizontal directional drilling machine one side of burying completes crossing construction.
Embodiment 3:
The stratum of passing through is flour sand, fine sand, medium sand, coarse sand.At first in the unearthed preparation of having held.Lay water service pipe, gutter, Grouting Pipe and supply line in the crossline of end that is unearthed; Water service pipe in crossline, gutter, Grouting Pipe and supply line are connected with water service pipe 14, gutter 15 and the Grouting Pipe 13 of this rig, crossline is connected with the hauling pipe pipe nipple 4 of this rig end.After horizontal directional drilling machine completes the pilot hole operation, being unearthed, end connects this rig.With horizontal directional drill machine travel drilling rod, with drilling rod draw this rig enter operating pit start the driving.This rig cutting stratum enlarges boring.Driving mechanism 9(motor) drive cutterhead 6 cutting stratum, motor is powered by supply line by floor power supply device.Muddy water is injected by water service pipe 14 at the end that is unearthed, and the muddy water storehouse 1 of rig front end in, with after drilling cuttings mixes, by mud suction mouth 2, enters gutter 15, drains into unearthed the end after gravel pump 10 pressurizes.Thixotropic slurry injects through Grouting Pipe 13 at the end that is unearthed, the space of being injected between crossline and borehole wall by injected hole 11.This rig tunnels and draws crossline until end horizontal directional drilling machine one side of burying completes crossing construction.
Embodiment 4:
The stratum of passing through is gravel, cobble, rock.At first in the unearthed preparation of having held.Lay water service pipe, gutter, Grouting Pipe and supply line in the crossline of end that is unearthed; Water service pipe in crossline, gutter, Grouting Pipe and supply line are connected with water service pipe 14, gutter 5 and the Grouting Pipe 13 of this rig, crossline is connected with the hauling pipe pipe nipple 4 of this rig end.After horizontal directional drilling machine completes the pilot hole operation, being unearthed, end connects this rig.With horizontal directional drill machine travel drilling rod, with drilling rod draw this rig enter operating pit start the driving.This rig cutting stratum enlarges boring.Driving mechanism 9(motor) drive cutterhead 6 cutting stratum, motor is powered by supply line by floor power supply device.Muddy water is injected by water service pipe 14 at the end that is unearthed, and the muddy water storehouse 1 of rig front end in, with after drilling cuttings mixes, by mud suction mouth 2, enters gutter 15, drains into unearthed the end after gravel pump 10 pressurizes.In stratum, at first the cobble of large particle diameter, rubble pulverize through conical breaker structure 7, then enter gutter 15 through mud suction mouth 2.Thixotropic slurry injects through Grouting Pipe 13 at the end that is unearthed, the space of being injected between crossline and borehole wall by injected hole 11.This rig tunnels and draws crossline until end horizontal directional drilling machine one side of burying completes crossing construction.
Claims (2)
1. a Pipeline Crossing by Horizontal Directional Drilling rig is characterized in that:
The body of this rig (3) is inner to be separated by cabin wall (8), cabin wall (8) front surface connects conical breaker structure (7) and is positioned at the main shaft (5) at its center, and main shaft (5) front end connects cutterhead (6) and horizontal directional drill machine travel drilling rod; Between conical breaker structure (7) and cabin wall (8), be muddy water storehouse (1), muddy water storehouse (1) is provided with mud suction mouth (2); Cabin wall (8) rear surface connects cutter plate driver mechanism (9), is communicated with the water service pipe (14) in muddy water storehouse (1) and the gutter (15) that is communicated with mud suction mouth (2), the upper gravel pump (10) that connects of gutter (15); Body (3) rear end connects hauling pipe pipe nipple (4), hauling pipe pipe nipple (4) side face is provided with injected hole (11), be provided with the grouting pressure adjusting device (12) and the Grouting Pipe (13) that connect injected hole (11) in hauling pipe pipe nipple (4), hauling pipe pipe nipple (4) rear end connects crossline.
2. Pipeline Crossing by Horizontal Directional Drilling rig according to claim 1, is characterized in that body (3) the rear end hauling pipe pipe nipple (4) that is articulated and connected, and hauling pipe pipe nipple (4) side face evenly is provided with 3～5 injected holes (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203160681U CN203334955U (en) | 2013-06-03 | 2013-06-03 | Drilling device for horizontal directional drilling penetration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203160681U CN203334955U (en) | 2013-06-03 | 2013-06-03 | Drilling device for horizontal directional drilling penetration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203334955U true CN203334955U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203160681U Expired - Fee Related CN203334955U (en) | 2013-06-03 | 2013-06-03 | Drilling device for horizontal directional drilling penetration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213833A (en) * | 2013-06-03 | 2014-12-17 | 中国石油天然气集团公司 | Horizontal directional drilling crossing construction method and horizontal directional drilling crossing drilling device |
-
2013
- 2013-06-03 CN CN2013203160681U patent/CN203334955U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213833A (en) * | 2013-06-03 | 2014-12-17 | 中国石油天然气集团公司 | Horizontal directional drilling crossing construction method and horizontal directional drilling crossing drilling device |
| CN104213833B (en) * | 2013-06-03 | 2016-08-10 | 中国石油天然气集团公司 | Pipeline Crossing by Horizontal Directional Drilling construction method and rig thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: China National Petroleum Corp. Patentee after: CHINA PETROLEUM PIPELINE BUREAU Patentee after: China Petroleum Pipeline Engineering Co.,Ltd. Address before: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee before: China National Petroleum Corp. Patentee before: CHINA PETROLEUM PIPELINE BUREAU Patentee before: CHINA PETROLEUM PIPELINE ENGINEERING Corp. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170328 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: China National Petroleum Corp. Patentee after: China Petroleum Pipeline Engineering Co.,Ltd. Address before: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee before: China National Petroleum Corp. Patentee before: CHINA PETROLEUM PIPELINE BUREAU Patentee before: China Petroleum Pipeline Engineering Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20210603 |