CN103899251B - A kind of localization method of drill bit of no-dig technique rig - Google Patents
A kind of localization method of drill bit of no-dig technique rig Download PDFInfo
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- CN103899251B CN103899251B CN201410153723.5A CN201410153723A CN103899251B CN 103899251 B CN103899251 B CN 103899251B CN 201410153723 A CN201410153723 A CN 201410153723A CN 103899251 B CN103899251 B CN 103899251B
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- drill bit
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- point
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000004807 localization Effects 0.000 title claims abstract description 16
- 239000000523 sample Substances 0.000 claims abstract description 55
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 5
- 238000013519 translation Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
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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
- E21B10/00—Drill bits
-
- 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
- E21B45/00—Measuring the drilling time or rate of penetration
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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)
- Geophysics And Detection Of Objects (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of drill bit of no-dig technique rig, be provided with probe in described drill bit, be provided with antenna, it is characterized in that in described probe, described antenna has at least two groups of coaxial setting and tranmitting frequency is different.Also disclose a kind of localization method of above-mentioned drill bit.By arranging two groups of antennas in drill bit, according to translation relation, before two of two groups of antennas point or two distances put afterwards identical with the distance of antenna, therefore in the whole work progress crept at drill bit, operating personnel only need the distance (distances between two groups of antennas) of mobile a section less just can descend the axis direction of probe definitely, displacement is few, and operate more convenient, quick and safety.
Description
Technical field
The present invention relates to a kind of drilling tool, especially a kind of drill bit of no-dig technique rig, and the localization method of this drill bit.
Background technology
Along with the extensive development of urban construction, need to lay in city and cut dirty pipe or the energy (liquefied gas, natural gas an etc.) supply pipe, comparatively conventional method is that box cut carrys out pipe laying and sunkens cord, and this can cause environment pollution, cause traffic jam, and there is construction safety hidden danger.
Therefore, also application no-dig laying pipelines technique at present, namely one utilizes rock and soil drilling means, when road surface not ditching, not destroy in large area top layer, lay, repair and change the construction technology of underground utilities.Use trenchless technology has the advantages such as the cycle is short, cost is low, pollute less, security performance is good, and can not affect normal traffic order.
What no-dig laying pipelines technique application was wider is horizontally-guided progressive method, and it comes in realize before utilizing no-dig technique guide instrument to guide the drilling rod that drill bit is housed to carry out orientation.No-dig technique guide instrument comprise provide drill bit real-time operating mode-degree of depth, inclination angle and hour direction, the operating personnel on ground are allowed to grasp drilling track in real time to revise timely follow-up operation, to ensure, by set route track accurate pointing, to complete trenchless pipelaying.As can be seen here, no-dig laying pipelines technique has very high requirement for the accurate measurement of no-dig technique guide instrument.
No-dig technique guide instrument is generally by underground probe, and ground receiver instrument, remote display three part forms.Traditional no-dig technique guide instrument utilizes the antenna transmission electromagnetic wave detecting underground probe to position.
Figure 1 shows that antenna radiated electromagnetic field distribution map on the vertical plane, the underground probe of guide instrument, the plane of the electromagnetic wave shape mistake antenna 1 ' axis in office that its signal transmitting antenna 1 ' is launched has shape as shown in Figure 1.All there are three special points in its each root electromagnetic induction line, the m point directly over A1, A2 as shown in Figure 1 and probe.Wherein magnetic direction P1 with P2 of A1 with A2 point vertical with antenna 1 ' axes O 1O2 direction (suppose the magnetic direction at A1 place vertically downward, then the magnetic direction at A2 place vertically upward), the line of 2 is parallel with axes O 1O2.The special points (magnetic direction vertically downward, is assumed to be A1) being positioned at drill bit front is generally called front point by engineering, the special points (magnetic direction vertically upward, is assumed to be A2) being positioned at drill bit rear is called rear point.K line is that a series of front point on the line of magnetic induction is connected the line obtained, and m point is positioned at directly over probe, and its magnetic direction is parallel with antenna 1 ' axes O 1O2 direction.
The localization method of tradition no-dig technique guide instrument first utilizes the receiving instrument 2 ' on ground to find directly over probe axial location, then front some A1 and rear some A2 is found respectively by the reception antenna of receiving instrument 2 ', obtain the sensing of probe axis again according to the line direction of front point, rear some A1A2, thus know the direction of advance of drill bit.Utilize receiving instrument 2 ' along the line direction finding of front point, the rear some A1A2 m point parallel with probe axis direction to electromagnetic field direction, be then the position of probe immediately below m point, reception antenna can calculate the distance of probe and receiving instrument 2 ' according to the signal strength signal intensity received thus obtain the degree of depth of drill bit in underground.The spatial positional information of the probe that remote display 3 ' simultaneous display receiving instrument 2 ' calculates, carries out correct guiding operation for rig personnel.Concrete localization method, can see application number a kind of horizontal directional drilling orientation method and position indicator disclosed in the Chinese patent application of 200410046887.4.
As can be seen from Figure 1, along with the increase with probe axes normal distance, the distance between front some A1 of searching and rear some A2 is needed also to increase fast.In the process that drill bit creeps into, operating personnel need constantly to find and front put the direction of advance that A1 and rear some A2 locates drill bit in real time, therefore when probe in underground comparatively deep location time, before and after back and forth finding back and forth, the method for point location will the at substantial time, especially when drill bit is positioned at the below of road central authorities, need operating personnel repeatedly to travel to and fro between road both sides, in application process, there is very big potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of localization method of drill bit of no-dig technique rig.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of localization method of drill bit of no-dig technique rig, probe is provided with in described drill bit, be provided with antenna in described probe, described antenna has at least two groups of coaxial setting and tranmitting frequency is different; Described localization method adopts no-dig technique guide instrument, it is characterized in that, comprises the steps:
1) the first point that on the line of magnetic induction utilizing the receiving instrument on guide instrument ground first to search out wherein one group of antenna transmission in two groups of antennas, magnetic direction is vertical;
2) the consistent second point of magnetic direction on the line of magnetic induction utilizing described receiving instrument to find another group antenna transmission near above-mentioned first, the central point of the distance between first and second point and two groups of antennas is apart from identical;
3) direction of described probe axis is determined at first by the line direction between above-mentioned and second point;
4) utilize described receiving instrument near above-mentioned and second point, to find magnetic direction and described axis being parallel thirdly at first, described thirdly immediately below be the position of described probe, thus obtain the degree of depth of drill bit in underground.
If receiving instrument is in a certain position, drill bit front, then first is front point with second point, and the magnetic direction of described first vertically upward.
If receiving instrument is in a certain position, drill bit rear, then first is rear point with second point, and the magnetic direction of described first vertically downward.
According to one embodiment of present invention, the set-up mode of antenna is, two groups of antennas are located in same probe, two groups of antennas are disposed in parallel in side in described probe or two groups of antennas coaxially and are separately positioned on both sides in described probe coaxially, convenient for installation and maintenance thus, apparatus structure is few, and the probability broken down is little.
According to another embodiment of the invention, the set-up mode of antenna is, described probe has coaxial two of arranging, one group of antenna is set in each root probe, flexible for installation thus, the distance of two antennas can be determined according to engineering practice, make certainty of measurement reach optimum efficiency (when antenna is when underground position is darker, if two antenna distances are still comparatively near, larger with actual position possible deviation according to the straight line determined between 2 points (actual measurement be all two zonules).Therefore when antenna in underground more shallow position, two antenna distances can be allowed suitably to reduce, when in underground comparatively deep location can increase by two antenna distances).
Compared with prior art, the invention has the advantages that: by arranging two groups of antennas in drill bit, according to translation relation, before two of two groups of antennas point or two distances put afterwards identical with the distance of antenna, therefore in the whole work progress crept at drill bit, operating personnel only need the distance (distances between two groups of antennas) of mobile a section less just can descend the axis direction of probe definitely, and displacement is few, and operate more convenient, quick and safety.
Accompanying drawing explanation
Fig. 1 is the guide instrument positioning principle figure of prior art;
Fig. 2-1 is the schematic diagram of first embodiment of drill bit of the present invention;
Fig. 2-2 is the schematic diagram of second embodiment of drill bit of the present invention;
Fig. 2-3 is the schematic diagram of the 3rd embodiment of drill bit of the present invention;
Fig. 3 is drill bit positioning principle figure of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
See Fig. 2-1 ~ Fig. 2-3, a kind of drill bit of no-dig technique rig, is provided with the antenna that two groups of tranmitting frequencies are different in it, the first antenna 1 and the second antenna 2.As shown in Fig. 2-1, the side of probe 3, the two groups of antennas being provided with no-dig technique guide instrument in drill bit coaxially in the arranged side by side probe 3 be arranged in drill bit, battery compartment 4 is positioned at another end of probe 3; As shown in Fig. 2-2, be with Fig. 2-1 difference, battery compartment 4 is between two groups of antennas; As Figure 2-3, in drill bit, be provided with two probes, the first probe 31 and the second probe 32, wherein the first antenna 1 is positioned at the first probe 31, second antenna 2 is positioned at the second probe 32, first probe 31 and the second probe 32 is coaxially arranged, and two groups of antennas also keep coaxial.
Owing to being provided with the different antenna of two class frequencys, on the same axis and close together, the centre distance of two groups of antennas is s, then the distribution in space of the signal of two groups of antenna transmissions is also along axis translation distance s for two groups of antenna places.According to translation relation, the magnetic direction of the magnetic direction of the first antenna 1 front some A vertically downward and magnetic direction rear some B vertically upward, the second antenna 2 front some C vertically downward and magnetic direction rear some D vertically upward is also on same straight line b, and the axes O 1O2 of this straight line b and probe is (when having two probes, axis also only has one) be parallel to each other, see Fig. 3, in the present invention, indication vertically refers to the axial vertical of magnetic direction and probe.
According to above-mentioned position relationship, only needing to search out separately two points in above four special points (before two after point or two point) just can according to the axis direction of the line determination probe of point-to-point transmission, after this can know the direction of advance of drill bit according to existing technology, determine the degree of depth of drill bit in underground.
After arranging two groups of antennas, employing no-dig technique guide instrument to the localization method of drill bit is:
If not the ground receiver instrument of excavation guide instrument is in a certain position, drill bit front, then
1) utilize receiving instrument first to search out the front some A (or front some C of the second antenna 2) of the first antenna 1, carry out mark on ground;
2) then search out the front some C (or front some A of the first antenna 1) of the second antenna 2 nearby, carry out mark on ground;
3) before connecting two, the direction pointed by straight line of point is the direction of probe axis;
4) point that magnetic direction is parallel with this rectilinear direction is found, be that the position of probe is (during two probes immediately below this point, whether because distance is very near between the two, can be considered same position), reception antenna can calculate the distance of probe and receiving instrument according to the signal strength signal intensity received thus obtain the degree of depth of drill bit in underground.
Correspondingly, if ground receiver instrument is in a certain position, drill bit rear, then
1) utilize receiving instrument first to search out the rear some B (or rear some D of the second antenna 2) of the first antenna 1, carry out mark on ground;
2) then utilize receiving instrument to search out the rear some D (or rear some B of the first antenna 1) of the second antenna 2 nearby, carry out mark on ground;
3) two afterwards between line direction be exactly the axis direction of drill bit;
4) finding the point that magnetic direction is parallel with this rectilinear direction, is the position of probe immediately below this point, and reception antenna can calculate the distance of probe and receiving instrument according to the signal strength signal intensity received thus obtain the degree of depth of drill bit in underground.
Claims (5)
1. a localization method for the drill bit of no-dig technique rig, is provided with probe in described drill bit, is provided with antenna in described probe, and described antenna has at least two groups of coaxial setting and tranmitting frequency is different; Described localization method adopts no-dig technique guide instrument, it is characterized in that, comprises the steps:
1) the first point that on the line of magnetic induction utilizing the receiving instrument on guide instrument ground first to search out wherein one group of antenna transmission in two groups of antennas, magnetic direction is vertical;
2) the consistent second point of magnetic direction on the line of magnetic induction utilizing described receiving instrument to find another group antenna transmission near above-mentioned first, the central point of the distance between first and second point and two groups of antennas is apart from identical;
3) direction of described probe axis is determined at first by the line direction between above-mentioned and second point;
4) utilize described receiving instrument near above-mentioned and second point, to find magnetic direction and described axis being parallel thirdly at first, described thirdly immediately below be the position of described probe, thus obtain the degree of depth of drill bit in underground.
2. the localization method of drill bit as claimed in claim 1, it is characterized in that, the magnetic direction of described first vertically upward.
3. the localization method of drill bit as claimed in claim 1, it is characterized in that, the magnetic direction of described first vertically downward.
4. the localization method of the drill bit according to any one of claims 1 to 3, it is characterized in that, two groups of antennas are located in same probe, and two groups of antennas are disposed in parallel in side in described probe or two groups of antennas coaxially and are separately positioned on both sides in described probe coaxially.
5. the localization method of the drill bit according to any one of claims 1 to 3, is characterized in that, described probe has coaxial two of arranging, and arranges one group of antenna in each root probe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153723.5A CN103899251B (en) | 2014-04-16 | 2014-04-16 | A kind of localization method of drill bit of no-dig technique rig |
| PCT/CN2015/000242 WO2015158158A1 (en) | 2014-04-16 | 2015-04-08 | Drill bit of non-excavation drilling machine and positioning method for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153723.5A CN103899251B (en) | 2014-04-16 | 2014-04-16 | A kind of localization method of drill bit of no-dig technique rig |
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| Publication Number | Publication Date |
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| CN103899251A CN103899251A (en) | 2014-07-02 |
| CN103899251B true CN103899251B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410153723.5A Active CN103899251B (en) | 2014-04-16 | 2014-04-16 | A kind of localization method of drill bit of no-dig technique rig |
Country Status (2)
| Country | Link |
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| CN (1) | CN103899251B (en) |
| WO (1) | WO2015158158A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014385A (en) * | 2016-07-22 | 2016-10-12 | 黄山金地电子有限公司 | Guide method of non-excavation guide instrument |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899251B (en) * | 2014-04-16 | 2016-04-20 | 黄山金地电子有限公司 | A kind of localization method of drill bit of no-dig technique rig |
| CN104535060B (en) * | 2014-12-17 | 2018-03-30 | 中国神华能源股份有限公司 | The localization method and positioner of quarrymaster operation |
| CN106197237B (en) * | 2016-07-22 | 2019-11-05 | 黄山金地电子有限公司 | A kind of judgment method of the measurement point of no-dig technique guide instrument |
| 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 |
| CN115012915B (en) * | 2022-06-02 | 2023-01-24 | 中国石油天然气集团有限公司 | Magnetic field positioning method, system, device, equipment and medium based on straight wire |
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| US7111693B1 (en) * | 2002-11-26 | 2006-09-26 | The Charles Machine Works, Inc. | System and method for locating and tracking a boring tool |
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| CN103899251B (en) * | 2014-04-16 | 2016-04-20 | 黄山金地电子有限公司 | A kind of localization method of drill bit of no-dig technique rig |
-
2014
- 2014-04-16 CN CN201410153723.5A patent/CN103899251B/en active Active
-
2015
- 2015-04-08 WO PCT/CN2015/000242 patent/WO2015158158A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5764062A (en) * | 1996-03-14 | 1998-06-09 | Digital Control Incorporated | Technique for establishing and recording a boring tool path using a survey reference level |
| US6833795B1 (en) * | 1999-11-30 | 2004-12-21 | Vermeer Manufacturing Company | Underground utility detection system and method employing ground penetrating radar |
| CN1769645A (en) * | 2004-11-03 | 2006-05-10 | 长沙中联重工科技发展股份有限公司 | Guide positioning method and positioning instrument for horizontal directional drilling |
| CN203905814U (en) * | 2014-04-16 | 2014-10-29 | 黄山金地电子有限公司 | Drilling bit of trenchless drilling machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014385A (en) * | 2016-07-22 | 2016-10-12 | 黄山金地电子有限公司 | Guide method of non-excavation guide instrument |
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| Publication number | Publication date |
|---|---|
| CN103899251A (en) | 2014-07-02 |
| WO2015158158A1 (en) | 2015-10-22 |
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