CN111535742A - Low-resistance directional drilling and crossing construction method for PE pipeline - Google Patents
Low-resistance directional drilling and crossing construction method for PE pipeline Download PDFInfo
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- CN111535742A CN111535742A CN202010395584.2A CN202010395584A CN111535742A CN 111535742 A CN111535742 A CN 111535742A CN 202010395584 A CN202010395584 A CN 202010395584A CN 111535742 A CN111535742 A CN 111535742A
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- 238000010276 construction Methods 0.000 title claims abstract description 68
- 238000005553 drilling Methods 0.000 title claims abstract description 54
- 239000002689 soil Substances 0.000 claims abstract description 77
- 239000002002 slurry Substances 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000004568 cement Substances 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 239000004927 clay Substances 0.000 claims description 15
- 239000004576 sand Substances 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 238000005461 lubrication Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 abstract description 14
- 230000003014 reinforcing effect Effects 0.000 abstract description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
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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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
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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
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
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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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a low-resistance directional drilling and crossing construction method for a PE pipeline, which comprises the following specific steps of: preparing before construction, detecting an underground pipeline, taking design parameters, and setting a working well and a receiving well; preparing slurry; constructing a guide hole, namely utilizing an inclined drill bit with a slurry jet structure to construct the guide hole; carrying out reaming construction, namely spraying cement slurry on the inner wall of the drilled hole after reaming, putting the drilled hole into the drilled hole, and introducing hot air; and (4) performing back-dragging pipe construction, wherein the mud prepared in the step two is utilized in the process of pulling back the pipeline, and the friction force between the drill bit and the pipeline and the surrounding soil body is reduced in a mud circulation mode. The construction method improves the flow velocity of the drill cuttings, so that the drill cuttings are easier to discharge; when the back dragging pipe is constructed, the resistance of the soil body to the pipeline is reduced by adopting a slurry circulation mode; slurry sprayed to the inner wall of the drilled hole after reaming at each time plays a good role in reinforcing and supporting the drilled hole, so that the hole collapse phenomenon is effectively avoided, and the construction quality is improved.
Description
Technical Field
The invention relates to the technical field of trenchless construction methods, in particular to a low-resistance directional drilling and crossing construction method for a PE pipeline.
Background
At present, in the pipeline laying construction process of horizontal directional drilling, along with the length and the caliber size of a construction pipeline are larger and larger, the drilling cuttings generated by drilling and reaming construction are more and more, and the particle diameters of the drilling cuttings generated by different stratums are different, so that the following problems exist in the construction process: the drilling cuttings flow speed is low during drilling, so that the drilling cuttings are difficult to discharge and remove slag; the resistance is larger when the pulling pipe is pulled back; when the construction is carried out on loose soil, the hole collapse phenomenon is easy to occur.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a low-resistance directional drilling and crossing construction method for a PE pipeline.
In order to achieve the purpose, the invention adopts the following technical scheme:
a low-resistance directional drilling and crossing construction method for a PE pipeline comprises the following specific steps:
step one, preparation before construction,
carrying out underground pipeline detection, selecting design parameters according to an underground pipeline exploration result, a site landform, a surrounding environment, a minimum bending radius of a drill rod and construction experience, and setting a working well and a receiving well;
step two, preparing the slurry,
preparing mud with different viscosities according to different constructed stratums for lubrication during drilling and reaming;
step three, constructing a guide hole,
conducting pilot hole construction by using the slurry prepared in the step two, the inclined plane drill bit with the slurry jet structure and the pilot positioning system;
step four, the hole expanding construction is carried out,
the drilling machine and the drill rod are used for driving the reamer to reciprocate along the guide hole, pebbles, rubbles and clay are continuously filled in the drilling process, the mud pulling disc is arranged on the drill rod, the drilling machine and the drill rod are used for dragging the mud pulling disc to reciprocate in the drill hole, the soil in the drill hole, which is crushed by the reamer, in the drill hole is discharged, then the support barrel, the outer wall of which is wrapped with unset concrete, is arranged on the drill rod and is used for spraying cement slurry to the inner wall of the drill hole, the cement slurry is placed in the drill hole and hot air is introduced;
step five, back dragging the pipe for construction,
and when the reamer returns to the receiving well for the last time, sealing the pipe head of the pipeline and extending the pipe head into the receiving well, connecting the pipe head of the pipeline with the reamer by using a rotary joint and a pipe drawing head, starting the pipe drawing machine to draw back the pipeline until the pipe head of the pipeline is drawn back into the working well, and reducing the friction force between the drill bit and the pipeline and the surrounding soil body by using the slurry prepared in the step two in the process of drawing back the pipeline in a slurry circulation mode.
Further, when the slurry prepared in the step two is prepared, a mahalanobis funnel viscometer is used, and the corresponding relation between the viscosity of the slurry and the soil texture of the stratum is as follows: 35-45S/qt of silt and mucky soil, 40-50S/qt of artificial filling soil, 30-40S/qt of clay and loam, 40-55S/qt of fine sandy soil and 50-65S/qt of medium and coarse sandy soil.
And further, in the third step, according to the set drilling path and the indication of the positioning instrument, the drilling machine and the drill rod are used for driving the guide drill bit to move from the working well to the receiving well until the guide drill bit drills into the receiving well, and the jacking distance of the guide drill bit is 0.3-0.5m each time.
Further, the hole expansion coefficient of the hole expansion construction in the fourth step needs to be selected according to the main soil property of the construction area, and the corresponding relation between the hole expansion coefficient and the soil property is as follows: 1.0-1.1 percent of silt and mucky soil, 1.1-1.2 percent of artificial filling soil, 1.2-1.3 percent of clay and loam, 1.3-1.4 percent of fine sandy soil, 1.4-1.5 percent of medium coarse sandy soil and 1.5-1.6 percent of pebble sandy soil; the temperature of the hot air is 70 ℃, and the wind speed is 3.5 m/s.
Further, a mud pit for mud circulation in the fifth step is arranged on the side of the receiving well, and the mud circulation path is as follows: mud pool-annular space outside the pipeline-reamer bit-pipeline-sand pump-mud pool circulation flow.
The invention has the beneficial effects that: in the construction method, the drilling resistance of the pilot hole is reduced and the flow rate of drill cuttings is improved through mud jet, so that the drill cuttings are easier to discharge; when the back dragging pipe is constructed, the resistance of the soil body to the pipeline is reduced by adopting a slurry circulation mode; slurry sprayed to the inner wall of the drilled hole after reaming at each time plays a good role in reinforcing and supporting the drilled hole, so that the hole collapse phenomenon is effectively avoided, and the construction quality is improved.
Detailed Description
The invention is further illustrated by the following examples:
example one
A low-resistance directional drilling and crossing construction method for a PE pipeline comprises the following specific steps:
step one, preparation before construction,
carrying out underground pipeline detection, selecting design parameters according to an underground pipeline exploration result, a site landform, a surrounding environment, a minimum bending radius of a drill rod and construction experience, and setting a working well and a receiving well;
step two, preparing the slurry,
preparing mud with different viscosities according to different constructed stratums for lubrication during drilling and reaming;
step three, constructing a guide hole,
conducting pilot hole construction by using the slurry prepared in the step two, the inclined plane drill bit with the slurry jet structure and the pilot positioning system;
step four, the hole expanding construction is carried out,
the drilling machine and the drill rod are used for driving the reamer to reciprocate along the guide hole, pebbles, rubbles and clay are continuously filled in the drilling process, the mud pulling disc is arranged on the drill rod, the drilling machine and the drill rod are used for dragging the mud pulling disc to reciprocate in the drill hole, the soil in the drill hole, which is crushed by the reamer, in the drill hole is discharged, then the support barrel, the outer wall of which is wrapped with unset concrete, is arranged on the drill rod and is used for spraying cement slurry to the inner wall of the drill hole, the cement slurry is placed in the drill hole and hot air is introduced;
step five, back dragging the pipe for construction,
and when the reamer returns to the receiving well for the last time, sealing the pipe head of the pipeline and extending the pipe head into the receiving well, connecting the pipe head of the pipeline with the reamer by using a rotary joint and a pipe drawing head, starting the pipe drawing machine to draw back the pipeline until the pipe head of the pipeline is drawn back into the working well, and reducing the friction force between the drill bit and the pipeline and the surrounding soil body by using the slurry prepared in the step two in the process of drawing back the pipeline in a slurry circulation mode.
Further, when the slurry prepared in the step two is prepared, a mahalanobis funnel viscometer is used, and the corresponding relation between the viscosity of the slurry and the soil texture of the stratum is as follows: the silt and mucky soil are 35S/qt, the artificial filling soil is 40S/qt, the clay and loam are 30S/qt, the fine sandy soil is 40S/qt, and the medium and coarse sandy soil is 50S/qt.
And further, in the third step, according to the set drilling path and the indication of the positioning instrument, the drilling machine and the drill rod are used for driving the guide drill bit to move from the working well to the receiving well until the guide drill bit drills into the receiving well, and the jacking distance of the guide drill bit is 0.3m each time.
Further, the hole expansion coefficient of the hole expansion construction in the fourth step needs to be selected according to the main soil property of the construction area, and the corresponding relation between the hole expansion coefficient and the soil property is as follows: 1.0 of silt and mucky soil, 1.1 of artificial filling soil, 1.2 of clay and loam, 1.3 of fine sandy soil, 1.4 of medium and coarse sandy soil and 1.5 of pebble sandy soil; the temperature of the hot air is 70 ℃, and the wind speed is 3.5 m/s.
Further, a mud pit for mud circulation in the fifth step is arranged on the side of the receiving well, and the mud circulation path is as follows: mud pool-annular space outside the pipeline-reamer bit-pipeline-sand pump-mud pool circulation flow.
In the construction method, the drilling resistance of the pilot hole is reduced and the flow rate of drill cuttings is improved through mud jet, so that the drill cuttings are easier to discharge; when the back dragging pipe is constructed, the resistance of the soil body to the pipeline is reduced by adopting a slurry circulation mode; slurry sprayed to the inner wall of the drilled hole after reaming at each time plays a good role in reinforcing and supporting the drilled hole, so that the hole collapse phenomenon is effectively avoided, and the construction quality is improved.
Example two
A low-resistance directional drilling and crossing construction method for a PE pipeline comprises the following specific steps:
step one, preparation before construction,
carrying out underground pipeline detection, selecting design parameters according to an underground pipeline exploration result, a site landform, a surrounding environment, a minimum bending radius of a drill rod and construction experience, and setting a working well and a receiving well;
step two, preparing the slurry,
preparing mud with different viscosities according to different constructed stratums for lubrication during drilling and reaming;
step three, constructing a guide hole,
conducting pilot hole construction by using the slurry prepared in the step two, the inclined plane drill bit with the slurry jet structure and the pilot positioning system;
step four, the hole expanding construction is carried out,
the drilling machine and the drill rod are used for driving the reamer to reciprocate along the guide hole, pebbles, rubbles and clay are continuously filled in the drilling process, the mud pulling disc is arranged on the drill rod, the drilling machine and the drill rod are used for dragging the mud pulling disc to reciprocate in the drill hole, the soil in the drill hole, which is crushed by the reamer, in the drill hole is discharged, then the support barrel, the outer wall of which is wrapped with unset concrete, is arranged on the drill rod and is used for spraying cement slurry to the inner wall of the drill hole, the cement slurry is placed in the drill hole and hot air is introduced;
step five, back dragging the pipe for construction,
and when the reamer returns to the receiving well for the last time, sealing the pipe head of the pipeline and extending the pipe head into the receiving well, connecting the pipe head of the pipeline with the reamer by using a rotary joint and a pipe drawing head, starting the pipe drawing machine to draw back the pipeline until the pipe head of the pipeline is drawn back into the working well, and reducing the friction force between the drill bit and the pipeline and the surrounding soil body by using the slurry prepared in the step two in the process of drawing back the pipeline in a slurry circulation mode.
Further, when the slurry prepared in the step two is prepared, a mahalanobis funnel viscometer is used, and the corresponding relation between the viscosity of the slurry and the soil texture of the stratum is as follows: the silt and mucky soil are 45S/qt, the artificial filling soil is 50S/qt, the clay and loam are 40S/qt, the fine sand soil is 55S/qt, and the medium and coarse sand soil is 65S/qt.
And further, in the third step, according to the set drilling path and the indication of the positioning instrument, the drilling machine and the drill rod are used for driving the guide drill bit to move from the working well to the receiving well until the guide drill bit drills into the receiving well, and the jacking distance of the guide drill bit is 0.5m each time.
Further, the hole expansion coefficient of the hole expansion construction in the fourth step needs to be selected according to the main soil property of the construction area, and the corresponding relation between the hole expansion coefficient and the soil property is as follows: 1.1 percent of silt and mucky soil, 1.2 percent of artificial filling soil, 1.3 percent of clay and loam, 1.4 percent of fine sandy soil, 1.5 percent of medium coarse sandy soil and 1.6 percent of pebble sandy soil; the temperature of the hot air is 70 ℃, and the wind speed is 3.5 m/s.
Further, a mud pit for mud circulation in the fifth step is arranged on the side of the receiving well, and the mud circulation path is as follows: mud pool-annular space outside the pipeline-reamer bit-pipeline-sand pump-mud pool circulation flow.
In the construction method, the drilling resistance of the pilot hole is reduced and the flow rate of drill cuttings is improved through mud jet, so that the drill cuttings are easier to discharge; when the back dragging pipe is constructed, the resistance of the soil body to the pipeline is reduced by adopting a slurry circulation mode; slurry sprayed to the inner wall of the drilled hole after reaming at each time plays a good role in reinforcing and supporting the drilled hole, so that the hole collapse phenomenon is effectively avoided, and the construction quality is improved.
EXAMPLE III
A low-resistance directional drilling and crossing construction method for a PE pipeline comprises the following specific steps:
step one, preparation before construction,
carrying out underground pipeline detection, selecting design parameters according to an underground pipeline exploration result, a site landform, a surrounding environment, a minimum bending radius of a drill rod and construction experience, and setting a working well and a receiving well;
step two, preparing the slurry,
preparing mud with different viscosities according to different constructed stratums for lubrication during drilling and reaming;
step three, constructing a guide hole,
conducting pilot hole construction by using the slurry prepared in the step two, the inclined plane drill bit with the slurry jet structure and the pilot positioning system;
step four, the hole expanding construction is carried out,
the drilling machine and the drill rod are used for driving the reamer to reciprocate along the guide hole, pebbles, rubbles and clay are continuously filled in the drilling process, the mud pulling disc is arranged on the drill rod, the drilling machine and the drill rod are used for dragging the mud pulling disc to reciprocate in the drill hole, the soil in the drill hole, which is crushed by the reamer, in the drill hole is discharged, then the support barrel, the outer wall of which is wrapped with unset concrete, is arranged on the drill rod and is used for spraying cement slurry to the inner wall of the drill hole, the cement slurry is placed in the drill hole and hot air is introduced;
step five, back dragging the pipe for construction,
and when the reamer returns to the receiving well for the last time, sealing the pipe head of the pipeline and extending the pipe head into the receiving well, connecting the pipe head of the pipeline with the reamer by using a rotary joint and a pipe drawing head, starting the pipe drawing machine to draw back the pipeline until the pipe head of the pipeline is drawn back into the working well, and reducing the friction force between the drill bit and the pipeline and the surrounding soil body by using the slurry prepared in the step two in the process of drawing back the pipeline in a slurry circulation mode.
Further, when the slurry prepared in the step two is prepared, a mahalanobis funnel viscometer is used, and the corresponding relation between the viscosity of the slurry and the soil texture of the stratum is as follows: the silt and mucky soil are 40S/qt, the artificial filling soil is 45S/qt, the clay and loam are 35S/qt, the fine sand soil is 50S/qt, and the medium and coarse sand soil is 55S/qt.
And further, in the third step, according to the set drilling path and the indication of the positioning instrument, the drilling machine and the drill rod are used for driving the guide drill bit to move from the working well to the receiving well until the guide drill bit drills into the receiving well, and the jacking distance of the guide drill bit is 0.4m each time.
Further, the hole expansion coefficient of the hole expansion construction in the fourth step needs to be selected according to the main soil property of the construction area, and the corresponding relation between the hole expansion coefficient and the soil property is as follows: 1.15 percent of silt and mucky soil, 1.15 percent of artificial filling soil, 1.25 percent of clay and loam, 1.35 percent of fine sandy soil, 1.45 percent of medium and coarse sandy soil and 1.55 percent of pebble sandy soil; the temperature of the hot air is 70 ℃, and the wind speed is 3.5 m/s.
Further, a mud pit for mud circulation in the fifth step is arranged on the side of the receiving well, and the mud circulation path is as follows: mud pool-annular space outside the pipeline-reamer bit-pipeline-sand pump-mud pool circulation flow.
In the construction method, the drilling resistance of the pilot hole is reduced and the flow rate of drill cuttings is improved through mud jet, so that the drill cuttings are easier to discharge; when the back dragging pipe is constructed, the resistance of the soil body to the pipeline is reduced by adopting a slurry circulation mode; slurry sprayed to the inner wall of the drilled hole after reaming at each time plays a good role in reinforcing and supporting the drilled hole, so that the hole collapse phenomenon is effectively avoided, and the construction quality is improved.
The present invention has been described in connection with the specific embodiments, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, and it is within the protection scope of the present invention as long as various modifications are made by using the method concept and technical solution of the present invention, or the present invention is directly applied to other occasions without modification.
Claims (5)
1. A low-resistance directional drilling and crossing construction method for a PE pipeline is characterized by comprising the following specific steps:
step one, preparation before construction,
carrying out underground pipeline detection, selecting design parameters according to an underground pipeline exploration result, a site landform, a surrounding environment, a minimum bending radius of a drill rod and construction experience, and setting a working well and a receiving well;
step two, preparing the slurry,
preparing mud with different viscosities according to different constructed stratums for lubrication during drilling and reaming;
step three, constructing a guide hole,
conducting pilot hole construction by using the slurry prepared in the step two, the inclined plane drill bit with the slurry jet structure and the pilot positioning system;
step four, the hole expanding construction is carried out,
the drilling machine and the drill rod are used for driving the reamer to reciprocate along the guide hole, pebbles, rubbles and clay are continuously filled in the drilling process, the mud pulling disc is arranged on the drill rod, the drilling machine and the drill rod are used for dragging the mud pulling disc to reciprocate in the drill hole, the soil in the drill hole, which is crushed by the reamer, in the drill hole is discharged, then the support barrel, the outer wall of which is wrapped with unset concrete, is arranged on the drill rod and is used for spraying cement slurry to the inner wall of the drill hole, the cement slurry is placed in the drill hole and hot air is introduced;
step five, back dragging the pipe for construction,
and when the reamer returns to the receiving well for the last time, sealing the pipe head of the pipeline and extending the pipe head into the receiving well, connecting the pipe head of the pipeline with the reamer by using a rotary joint and a pipe drawing head, starting the pipe drawing machine to draw back the pipeline until the pipe head of the pipeline is drawn back into the working well, and reducing the friction force between the drill bit and the pipeline and the surrounding soil body by using the slurry prepared in the step two in the process of drawing back the pipeline in a slurry circulation mode.
2. The PE pipeline low-resistance directional drilling-through construction method as claimed in claim 1, wherein when the slurry prepared in the step two is processed by a Ma-Ching viscometer, the corresponding relationship between the viscosity of the slurry and the soil quality of the stratum is as follows: 35-45S/qt of silt and mucky soil, 40-50S/qt of artificial filling soil, 30-40S/qt of clay and loam, 40-55S/qt of fine sandy soil and 50-65S/qt of medium and coarse sandy soil.
3. The PE pipeline low-resistance directional drilling and crossing construction method according to claim 1, wherein in the third step, according to the set drilling path and the indication of a positioning instrument, a drilling machine and a drill rod are used for driving a guide drill bit to move from a working well to a receiving well until the guide drill bit is drilled into the receiving well, and the jacking distance of the guide drill bit is 0.3-0.5m each time.
4. The PE pipeline low-resistance directional drilling and crossing construction method according to claim 1, wherein the hole expansion coefficient of the hole expansion construction in the fourth step needs to be selected according to the main soil texture of the construction area, and the corresponding relation between the hole expansion coefficient and the soil texture is as follows: 1.0-1.1 percent of silt and mucky soil, 1.1-1.2 percent of artificial filling soil, 1.2-1.3 percent of clay and loam, 1.3-1.4 percent of fine sandy soil, 1.4-1.5 percent of medium coarse sandy soil and 1.5-1.6 percent of pebble sandy soil; the temperature of the hot air is 70 ℃, and the wind speed is 3.5 m/s.
5. The PE pipeline low-resistance directional drilling and crossing construction method as claimed in claim 1, wherein a mud pit for mud circulation in the fifth step is arranged on the side of the receiving well, and the mud circulation path is as follows: mud pool-annular space outside the pipeline-reamer bit-pipeline-sand pump-mud pool circulation flow.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113028A (en) * | 2020-09-15 | 2020-12-22 | 北京建工土木工程有限公司 | Equipment and method for pulling out pulled pipeline to ground without damage |
| CN113482531A (en) * | 2021-08-20 | 2021-10-08 | 北京城建亚泰建设集团有限公司 | Long-distance directional drilling pipeline back-dragging slurry circulation construction process |
| CN113914773A (en) * | 2021-09-07 | 2022-01-11 | 江苏兴宇建设集团有限公司 | Large-diameter steel pipe directional drilling opposite-penetrating drilling dragging method installation construction method |
| CN116006770A (en) * | 2022-12-20 | 2023-04-25 | 中建恒创(北京)科技发展有限公司 | Non-excavation high-precision directional drilling back-filling slurry-pressing pipe-laying construction method |
| CN116537721A (en) * | 2023-06-27 | 2023-08-04 | 陕西路桥集团有限公司 | Slurry circulation construction process in underground directional drilling and laying construction |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003140A (en) * | 2010-10-20 | 2011-04-06 | 中国地质大学（武汉） | Traversing reverse circulating drilling method of horizontal directional drilling pipeline and special drilling bit |
| CN104763338A (en) * | 2015-03-05 | 2015-07-08 | 成都理工大学 | Hole expanding device, pull-back hole expanding assembly and hole expanding drilling method thereof |
| CN204476270U (en) * | 2015-03-05 | 2015-07-15 | 成都理工大学 | A kind of reamer and reaming assembly of pulling back |
| CN106870819A (en) * | 2017-03-24 | 2017-06-20 | 广州市恒盛建设工程有限公司 | A kind of high density polyethylene (HDPE) non-pressure pipe horizontal directional drilling construction method |
| CN110145230A (en) * | 2019-04-23 | 2019-08-20 | 上海勃利燃气设备有限公司 | A kind of horizontal directional drilling trombone slide method |
| CN110778272A (en) * | 2019-10-28 | 2020-02-11 | 中国电建集团河南工程有限公司 | Non-excavation laying construction method for large-diameter heat supply network pipeline |
-
2020
- 2020-05-12 CN CN202010395584.2A patent/CN111535742A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003140A (en) * | 2010-10-20 | 2011-04-06 | 中国地质大学（武汉） | Traversing reverse circulating drilling method of horizontal directional drilling pipeline and special drilling bit |
| CN104763338A (en) * | 2015-03-05 | 2015-07-08 | 成都理工大学 | Hole expanding device, pull-back hole expanding assembly and hole expanding drilling method thereof |
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