CN108150101B - A kind of pipeline three-dimensional construction method for crossing - Google Patents
A kind of pipeline three-dimensional construction method for crossing Download PDFInfo
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- CN108150101B CN108150101B CN201711401715.8A CN201711401715A CN108150101B CN 108150101 B CN108150101 B CN 108150101B CN 201711401715 A CN201711401715 A CN 201711401715A CN 108150101 B CN108150101 B CN 108150101B
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- 238000010276 construction Methods 0.000 title claims abstract description 51
- 238000005553 drilling Methods 0.000 claims abstract description 116
- 239000000523 sample Substances 0.000 claims abstract description 38
- 239000007858 starting material Substances 0.000 claims abstract description 16
- 238000012790 confirmation Methods 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 3
- 230000004888 barrier function Effects 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 14
- 229910000278 bentonite Inorganic materials 0.000 claims description 12
- 239000000440 bentonite Substances 0.000 claims description 12
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 239000002689 soil Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
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- 238000013461 design Methods 0.000 claims description 5
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 235000009508 confectionery Nutrition 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-N sodium;hydron;carbonate Chemical compound [Na+].OC(O)=O UIIMBOGNXHQVGW-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 15
- 238000009412 basement excavation Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
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Classifications
-
- 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
-
- 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
- E21B7/10—Correction of deflected boreholes
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
One aspect of the present invention discloses a kind of constructing device passed through for pipeline three-dimensional: specifically including that steering equipment, drilling machine, starter and drilling rod；Another aspect of the present invention discloses a kind of pipeline three-dimensional construction method for crossing: step includes: preparations before (1) constructs, (2) drilling, (3) probe location confirmation, (4) drilling trace is oriented to, (5) starter is unearthed, (6) reaming and hauling pipe.It is passed through using three-dimensional, horizontal plane and vertical plane can be thus achieved while borrowing and turn to pass through angle, the present invention solve current horizontal directional drilling can only be carried out in two-dimensional surface angle borrow turn, crossing length is too long, and construction site requires high, the big problem of engineering practical operation difficulty, it has been obviously improved construction quality, simultaneously because construction path is short, material and energy consumption, energy-saving and emission-reduction can also be reduced.
Description
Technical field
The present invention relates to underground construction field more particularly to a kind of pipeline three-dimensional construction method for crossing.
Background technique
With society, expanding economy, China's city size constantly expands, and infrastructure also constantly improve, the confession in city
The underground pipeline layouts quantity such as water, combustion gas, electric power, communication, petroleum unprecedentedly increases, and road is caused to dig the hurried rising of road excavated volume.
But on the one hand excavation construction is easy obstruction, generates security risk and destroy urban environment；On the other hand municipal administration is caused to set
The repetition maintenance applied, waste are difficult to estimate.For this purpose, imperative with a kind of new underground pipeline project construction method.It is non-to open
The appearance of digging technology solves this problem.
No-dig technique horizontal directional drilling construction technology be based on the pipeline laying technology for not destroying ground structure, it is substantially former
A sensing element is added to accurately control starter by the Deep space tracking to sensing element before drilling rod when reason is construction
Trend and depth, make its travel line meet bending radius and yield strength wait lay the line with drilling rod itself, until guiding
Drill bit is unearthed by predetermined position.Horizontal directional drilling construction technology is generally in three steps: pilot hole drilling returns and expands, returns and drag.It bores
Machine creeps into pilot hole in Different Strata and depth by preset geometric locus, then uses back the reaming of expansion device to required hole
Diameter will finally be completed to pass through in pipeline returning to duct.
Modern no-excavation construction method originates from developed country the end of the sixties in 19th century, mainly there is the U.S., Britain and day
This etc..Wherein the U.S. is a horizontally oriented drilling technology using most；In the U.S., industrial gas oil pipeline is frequently necessary to lead to
Private manor and environmentally sensitive area are crossed, this develops Horizontal Directional Drilling.The European countries such as Britain are using pipe
Line recovery technique is more, and Japan mainly uses micro-tunneling and pipe-jacking technology.
The research and development work of China's no-excavation construction method and equipment is started late, the late 1980s,
Due to do not allow digging laying underground utilities engineering quantity increase and the development of each big city reconstruction and extension project, China
Start to introduce and manufacture experimently all kinds of non-excavating construction equipment, to promote the independent research work of no-excavation construction method and equipment
Make.As one kind of no-excavation construction method, horizontal directional drilling construction technology is in China's non-excavation laying underground pipeline construction
It is with fastest developing speed in method, technology is most advanced, equipment is most perfect, most widely used, in occupation of leading in trenchless technology field
Status.
Horizontal Directional Drilling, can be certain bent as a construction technology most active in current trenchless technology
Barrier is got around in rate radius, has the characteristics that speed of application is fast, precision is high, environmentally friendly.In horizontal positioning drill guide hole drill
Into when, according to existing code requirement, angular transformation cannot be carried out simultaneously in horizontal and vertical direction, two-dimensional surface can only be carried out
Interior passes through.But Urban Space is narrow, and road is criss-cross.City-building also results in underground sky while growing rapidly
Between resource anxiety.Passing through for underground utilities inevitably avoids more and more underground obstacles and underground structure.
If horizontal directional drilling can only carry out angle by means of turn in two-dimensional surface, crossing length will be longer, the requirement constructed to place
Also will be higher, the practical operation difficulty of engineering also will increase.Similar situation has been encountered in actual operation, busy location,
Horizontal directional through-passing is needed, but place can not meet the requirement of crossing length.
The construction of three-dimensional space horizontal directional drill has had mature condition.First is that applying in flexible ducts such as PE pipe, silicone tubes
The benefit of three-dimensional construction is embodied in work more and more；Second is that horizontal directional drill construction has been widely recognized, work of constructing
Skill also tends to be mature.Thus in the case where improving construction quality, the main trend of energy-saving and emission-reduction, it is necessary to which research level Directional Drilling three-dimensional is worn
More technology.
Breaking through two-dimensional limitation and realize that three-dimensional is passed through --- i.e. in horizontal plane and vertical plane while borrowing turn --- can be preferable
Ground solves the problems, such as this.On the one hand it meets the initial design philosophy of crossing construction, that is, keeps away obstacle object, by the scope of barrier
By the two-dimensional expansion of plane to three-dimensional, the use scope and practicability of this technology are expanded, broader market can be opened up；Separately
On the one hand, successively borrowing for horizontal and vertical direction turns to realize simultaneously in three dimensions in two dimension, this also just shortens pipeline
Length also complies with current and long-range development trend for the condition provided convenience of constructing in city.
Therefore, those skilled in the art is dedicated to developing a kind of pipeline three-dimensional construction method for crossing.
Summary of the invention
In view of the above drawbacks of the prior art, the technical problem to be solved by the present invention is to how one kind is provided can be
The pipeline three-dimensional construction method for crossing of barrier is got around in safe distance.
To achieve the above object, the first aspect of the present invention provides a kind of constructing device passed through for pipeline three-dimensional:
Specifically include that steering equipment, drilling machine, starter and drilling rod, wherein
Steering equipment includes sensor, receiver and remote display, and sensor is probe；
Drill pipe diameter is 89mm, and length is 4500~6100mm, and slenderness ratio is 50.6~68.5, the connection side between drilling rod
Formula is to be threadedly coupled；
The rotation pump output pressure of drilling machine is 3000 pounds/square inch, and it is 5100 that system pressure is dragged in the propulsion of drilling machine/return
Pound/square inch, the rotary system output pressure of drilling rod is 4750 pounds/square inch；The mud system pressure of drilling rod is 5900
Pound/square inch；
Starter is fixedly mounted on the drilling rod with front end, and probe is mounted in starter.
The second aspect of the present invention provides a kind of pipeline three-dimensional construction method for crossing: the following steps are included:
(1) prepare before construction；
(2) it creeps into；
(3) probe location confirmation；
(4) drilling trace is oriented to；
(5) starter is unearthed；
(6) reaming and hauling pipe, wherein；
In step (3), it can choose in adjunction drilling rod using the position of steering equipment confirmation probe；
In step (3), when apart from the sum of barrier minimum safe distance and maximum reaming radius≤1m, in order to meet
Three-dimensional, which passes through region and realizes vertical plane and horizontal plane while borrowing, to be turned, and the 1/4 of every drilling run of steel, confirmed using steering equipment and is visited
The position of stick, maximum reaming radius are 1.2~1.5 times of pipe diameter to be installed, and minimum safe distance is true when being detail design
Minimum range of the fixed pipeline outer wall to be installed apart from barrier；
In step (3), when apart from the sum of barrier minimum safe distance and maximum reaming radius between 1m and 2m,
Turn to meet to pass through region in three-dimensional and realize vertical plane and horizontal plane while borrowing, the 1/2 of every drilling run of steel, uses steering
The position of equipment confirmation probe；
In step (3), when apart from the sum of barrier minimum safe distance and maximum reaming radius between >=2m, it is
Meet and pass through region in three-dimensional and realize vertical plane and horizontal plane while borrowing turn, a piece drilling rod of every drilling is true using steering equipment
Recognize the position of probe；
In step (4), when needing to adjust deviation δ≤0.2m of drilling trace, using the method for adjustment of non-pumpback drilling rod；
In step (4), when the deviation for needing to adjust drilling trace is between 0.2m and 0.5m, if drilling rod slenderness ratio
<60, the mode for taking pumpback to be no less than 6 drilling rods adjusts guiding, if drilling rod slenderness ratio>=60, pumpback is taken to be no less than 5
The mode of the drilling rod adjusts guiding；
In step (4), when needing to adjust deviation >=0.5m of drilling trace, pumpback is taken to be no less than the side of 10 drilling rods
Formula adjustment guiding.
Further, when confirming the position of probe, the drilling tool in drilling must stop completely revolution.
Further, before spudding in, drilling machine test running determines and carries out further drilling operation after each section works well.
Further, before spudding in, starter is directed toward 12 o'clock direction.
Further, clock face is adjusted at 12 points after every drilling rod completes drilling by probe location confirmation.
Further, when first drilling rod buries, by the way of the low pressure slow-speed of revolution, stablize position of burying, meet and bury
Further implement drilling behind inclination angle.
Further, realize starter in horizontal plane and vertical by the circulation of step (2), step (3) and step (4)
Face is borrowed simultaneously to be turned, and barrier is got around.
Further, prepare to be divided into following steps again in step (1), before the construction: 1. physical prospecting；2. checking pipeline；③
Scene positioning；4. surveying setting-out；5. excavating working pit；6. installing drill bit and probe, probe is calibrated；7. Slurry confection.
Further, step 5. in, working pit depth is not shallower than 1.5 meters and digs to undisturbed soil.
Further, step 7. in, mud is formulated by drill-in fluid and bentonite, and the cooperation of every 1000L drill-in fluid contains 50
~150kg bentonite.
Further, the drill-in fluid includes soda or sodium bicarbonate, and pH value is 8~10.
Further, if environment is clay soil property, every 1000L drill-in fluid cooperates the bentonite containing 50~75kg.
Further, if environment is sand soil property, every 1000L drill-in fluid cooperates the bentonite containing 100~150kg.
Technical effect:
1, angle can only be carried out by means of turn in two-dimensional surface by solving current horizontal directional drilling, and crossing length is too long, applies
Work site requirements is high, the big problem of engineering practical operation difficulty；
2, construction quality is improved；
3, construction route segment, can also reduce material and energy consumption, energy-saving and emission-reduction.
It is described further below with reference to technical effect of the attached drawing to design of the invention, specific structure and generation, with
It is fully understood from the purpose of the present invention, feature and effect.
Detailed description of the invention
Fig. 1 is the drilling trace schematic top plan view of a preferred embodiment of the invention；
Fig. 2 is the drilling trace front schematic view of a preferred embodiment of the invention；
Fig. 3 is the drilling trace side schematic view of a preferred embodiment of the invention.
Specific embodiment
Embodiment 1
Pipeline three-dimensional crossing construction equipment specifically includes that steering equipment, drilling machine, starter and drilling rod, between drilling rod
Connection type is to be threadedly coupled, and steering equipment includes sensor, receiver and remote display, and sensor is probe, drilling machine
Rotating pump output pressure is 3000 pounds/square inch, and it is 5100 pounds/square inch that system pressure is dragged in the propulsion of drilling machine/return, drilling rod
Rotary system output pressure be 4750 pounds/square inch；The mud system pressure of drilling rod is 5900 pounds/square inch, guiding
Drill bit is fixedly mounted on the drilling rod with front end, and probe is mounted in starter.
Preparation process includes: before pipeline three-dimensional crossing construction
1. physical prospecting, owner is required, and commission has the Electromagnetic Survey of Underground Pipelines pipe position of professional qualification to carry out physical prospecting work to construction area
Make；
2. checking pipeline, pipeline is checked in conjunction with Use of Geophysical Data and construction drawing scene, verifies pipeline range are as follows: pipe position center
Each 20 meters of line two sides, totally 40 meters wide, such as crossing or pipeline complex region, range increases to each 50 meters of pipe position center line two sides, altogether
It is 100 meters wide；Length is a little each 50 meters of the extension that, buries；
3. scene positioning, by carrying out live positioning and measurement deeply in such a way that small probe measures buried depth of pipeline and direction etc.
Degree；
4. surveying setting-out demarcates outlet pipe position by the way of white line mark by drawing or cross-post；For can not graticule ground
The mark pole brand of spacing≤20 meter Duan Caiyong；
5. excavating working pit, a certain amount of mud storage requirement will be met by entering to bore point working pit, if mud amount is more than working pit
Storage aside can separately be dug working pit according to field condition or be transported outward using groove tank car timing；It is more than 1.5 meters of work to depth
It cheats, plays support or live slope processing；
6. installing drill bit and probe, probe is calibrated, the built-in new battery of probe, probe are mounted in starter before constructing,
Guarantee that drill bit water route is unobstructed, probe is intact to be calibrated according to the probe of different model, guarantees the accurate of steering track and sensing
The correctness of clock face locating for device；
7. Slurry confection, formation condition configures mud, and mud is formulated by drill-in fluid and bentonite, every 1000L drilling
Liquid cooperates the bentonite containing 50~150kg；By addition soda or sodium bicarbonate, the pH value of drill-in fluid is adjusted, the pH value of drill-in fluid is 8
~10, if environment is clay soil property, every 1000L drill-in fluid cooperates the bentonite containing 50~75kg；If environment is sand soil property, often
1000L drill-in fluid cooperates the bentonite containing 100~150kg；If encountering other soil properties, deployed according to the actual situation.
Drilling trace of the invention such as Fig. 1, shown in 2,3, by constantly detecting the position of probe in work progress, confirmation is bored
Into track, turn so that starter is borrowed simultaneously in horizontal plane and vertical plane, the specific step of pipeline three-dimensional construction method for crossing
Suddenly are as follows:
(1) drilling machine test running, before spudding in, drilling machine test running determines and carries out further drilling behaviour after each section works well
Make；
(2) it creeps into, when first drilling rod buries and creep into, the method that should take light pressure slow-speed is stablized a position of burying, met
The implementable drilling in inclination angle rear of burying is designed, drill bit is adjusted before spudding in and is directed toward 12 directions, wherein run of steel is 6.1m, diameter
89mm, slenderness ratio 68.5；
(3) probe location confirmation confirms probe position using steering equipment, brill when confirming the position of probe, in drilling
Tool must stop completely revolution, can choose the position that the probe is confirmed in adjunction drilling rod；
3.1 when apart from the sum of barrier minimum safe distance and maximum reaming radius≤1m, wear to meet in three-dimensional
More region is realized that vertical plane and horizontal plane are borrowed simultaneously and is turned, the 1/4 of every drilling run of steel, use the position of steering equipment confirmation probe
Set, maximum reaming radius is 1.2~1.5 times of pipe diameter to be installed, determined when minimum safe distance is detail design to
Minimum range of the pipe laying outer wall apart from barrier；
3.2 when apart from the sum of barrier minimum safe distance and maximum reaming radius between 1m and 2m, in order to full
Foot passes through region and realize vertical plane and horizontal plane while borrowing in three-dimensional to be turned, and the 1/2 of every drilling run of steel, it is true using steering equipment
Recognize the position of probe；
3.3 when apart from the sum of barrier minimum safe distance and maximum reaming radius between >=2m, in order to meet
It passes through region in three-dimensional and realizes vertical plane and horizontal plane while borrowing and turn, a piece drilling rod of every drilling confirms probe using steering equipment
Position；
3.4, which pass through probe location confirmation, is adjusted at 12 points for clock face after every drilling rod completes drilling.
(4) drilling trace is oriented to, and judges formation variation and drilling resistance in drilling process according to the variation of drilling parameter
Situation, is adjusted to drilling trace in time and carries out guiding construction note, during guiding, to lack into diligent measurement, according to brill
The deviation that hole occurs adjusts guide track in conjunction with the timely deflecting of formation condition, pays special attention to be unable to adjust too anxious or adjustment excessively,
" S " type is avoided to adjust back and forth when especially adjusting in the horizontal direction；
4.1 when needing to adjust deviation δ≤0.2m of drilling trace, using the method for adjustment of non-pumpback drilling rod；
4.2, when the deviation for needing to adjust drilling trace is between 0.2m and 0.5m, take pumpback to be no less than described in 5
The mode of drilling rod adjusts guiding；
4.3 when needing to adjust deviation >=0.5m of drilling trace, and the mode for taking pumpback to be no less than 10 drilling rods adjusts
Guiding；
Realize that the drill bit is borrowed simultaneously in horizontal plane and vertical plane by the circulation of step (2), step (3) and step (4)
Turn, gets around barrier.
(5) starter is unearthed, and guiding terminates, while spot-check scene guiding ground identification point.
(6) reaming and hauling pipe, den bohrkopf abbauen, install back expansion device, carry out reaming, start back to expand, using returning expansion step by step, maximum
Reaming radius is 1.2~1.5 times of pipe diameter to be installed, while having recorded mud flow rate when reaming, pressure, towing tension, torsion
Square etc.；Beginning pipeline time drags after reaming aperture reaches requirement, and soldered pipeline should be checked by returning before dragging, it is ensured that pipeline is long
Degree, weld seam, anticorrosive quality etc. meet the requirements, and pigging, work pressure test are qualified.
Embodiment 2
Use length for the drilling rod of 4.5m, drill pipe diameter 89mm, slenderness ratio 50.6, in work progress, pipeline three-dimensional is worn
The adjustment warping procedure of more (4) step of construction method, drilling trace guiding becomes:
4.1 when needing to adjust deviation δ≤0.2m of drilling trace, using the method for adjustment of non-pumpback drilling rod；
4.2, when the deviation for needing to adjust drilling trace is between 0.2m and 0.5m, take pumpback to be no less than described in 6
The mode of drilling rod adjusts guiding；
4.3 when needing to adjust deviation >=0.5m of drilling trace, and the mode for taking pumpback to be no less than 10 drilling rods adjusts
Guiding.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that the ordinary skill of this field is without wound
The property made labour, which according to the present invention can conceive, makes many modifications and variations.Therefore, all technician in the art
Pass through the available technology of logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Scheme, all should be within the scope of protection determined by the claims.
Claims (9)
1. a kind of pipeline three-dimensional construction method for crossing, which comprises the following steps:
(1) prepare before construction；
(2) it creeps into；
(3) probe location confirmation；
(4) drilling trace is oriented to；
(5) starter is unearthed；
(6) reaming and hauling pipe, wherein
In step (3), the position of steering equipment confirmation probe is used in adjunction drilling rod；
In step (3), when apart from the sum of barrier minimum safe distance and maximum reaming radius≤1m, in order to meet in three-dimensional
It passes through region and realizes vertical plane and horizontal plane while borrowing and turn, the 1/4 of every drilling run of steel, it is true using the steering equipment
Recognize the position of the probe, the maximum reaming radius is 1.2~1.5 times of pipe diameter to be installed, the minimum safe distance
The minimum range of the barrier with a distance from the pipeline outer wall to be installed determined when from for detail design；
In step (3), when apart from the barrier the minimum safe distance and the sum of the maximum reaming radius be in 1m
When between~2m, turn to meet to pass through region in three-dimensional and realize vertical plane and horizontal plane while borrowing, every drilling drilling rod is long
The 1/2 of degree, the position of the probe is confirmed using the steering equipment；
In step (3), when the minimum safe distance and the sum of the maximum reaming radius >=2m apart from the barrier,
Turn to meet to pass through region in three-dimensional and realize vertical plane and horizontal plane while borrowing, a piece drilling rod of every drilling, using described
Steering equipment confirms the position of the probe；
In step (4), when needing to adjust deviation δ≤0.2m of the drilling trace, using the method for adjustment of non-pumpback drilling rod；
In step (4), when the deviation for needing to adjust the drilling trace is between 0.2m~0.5m, if the drilling rod is long
Carefully than<60, the mode for taking pumpback to be no less than 6 drilling rods adjusts guiding, if drilling rod slenderness ratio>=60, take back
The mode for taking out no less than 5 drilling rods adjusts guiding；
In step (4), when needing to adjust deviation >=0.5m of the drilling trace, pumpback is taken to be no less than 10 drilling rods
Mode adjust guiding.
2. a kind of pipeline three-dimensional construction method for crossing as described in claim 1, which is characterized in that in step (3), described in confirmation
When the position of probe, the drilling tool in drilling must stop completely revolution.
3. a kind of pipeline three-dimensional construction method for crossing as described in claim 1, which is characterized in that in step (4), by described
Clock face is adjusted at 12 points after the every drilling rod completes the drilling by probe location confirmation.
4. a kind of pipeline three-dimensional construction method for crossing as described in claim 1, which is characterized in that in step (2), before spudding in,
The drill bit is directed toward 12 o'clock direction.
5. a kind of pipeline three-dimensional construction method for crossing as described in claim 1, which is characterized in that first drilling rod buries
When, by the way of the low pressure slow-speed of revolution, stablize position of burying, meets and further implement drilling after burying inclination angle.
6. a kind of pipeline three-dimensional construction method for crossing as described in claim 1, which is characterized in that pass through step (2), step
(3) it realizes that the starter is borrowed simultaneously in horizontal plane and vertical plane with the circulation of step (4) and turns, get around barrier.
7. a kind of pipeline three-dimensional construction method for crossing as described in claim 1, which is characterized in that in step (1), the construction
Preceding preparation is divided into following steps again: 1. physical prospecting；2. checking pipeline；3. scene positioning；4. surveying setting-out；5. excavating working pit；⑥
The drill bit and the probe are installed, the probe is calibrated；7. Slurry confection.
8. a kind of pipeline three-dimensional construction method for crossing as claimed in claim 7, which is characterized in that step 5. in, the work
Hole depth is not shallower than 1.5 meters and digs to undisturbed soil.
9. a kind of pipeline three-dimensional construction method for crossing as claimed in claim 7, which is characterized in that step 7. in, the mud
It is formulated by drill-in fluid and bentonite, the cooperation of drill-in fluid described in every 1000L is containing bentonite described in 50~150kg, the drilling
Liquid includes soda or sodium bicarbonate, and pH value is 8~10, if environment is clay soil property, the cooperation of drill-in fluid described in every 1000L containing 50~
Bentonite described in 75kg, if environment is sand soil property, the cooperation of drill-in fluid described in every 1000L is containing bentonite described in 100~150kg.
Priority Applications (1)
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| CN110319274A (en) * | 2019-07-08 | 2019-10-11 | 新兴铸管股份有限公司 | A kind of new ductile iron pipe drag pipe construction technique |
| CN113756721B (en) * | 2020-05-29 | 2024-05-07 | 宁波金地电子有限公司 | Method for eliminating inclination angle accumulation error of drilling system |
| CN112814650B (en) * | 2021-01-05 | 2022-07-26 | 四川石油天然气建设工程有限责任公司 | Hole measuring process for directional drilling of wireless probe and pipe back-dragging risk assessment method |
| CN117418782B (en) * | 2023-10-31 | 2024-04-02 | 中国石油化工股份有限公司 | Pipeline road traversing equipment based on geosteering |
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Address after: No.162 Weifang Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 200122 Patentee after: Shanghai Energy Construction Group Co.,Ltd. Address before: No.162 Weifang Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 200122 Patentee before: SHANGHAI MUNICIPAL GAS NO.2 PIPELINES ENGINEERING Co.,Ltd. |