CN103277090B - Based on drill rod orientation method and the device of dipulse magnetic moment measurement - Google Patents

Based on drill rod orientation method and the device of dipulse magnetic moment measurement Download PDF

Info

Publication number
CN103277090B
CN103277090B CN201310181146.6A CN201310181146A CN103277090B CN 103277090 B CN103277090 B CN 103277090B CN 201310181146 A CN201310181146 A CN 201310181146A CN 103277090 B CN103277090 B CN 103277090B
Authority
CN
China
Prior art keywords
unit
magnetic moment
ground
drilling rod
controlled switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201310181146.6A
Other languages
Chinese (zh)
Other versions
CN103277090A (en
Inventor
李伟
孟诚
黄捷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
710th Research Institute of CSIC
Original Assignee
710th Research Institute of CSIC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 710th Research Institute of CSIC filed Critical 710th Research Institute of CSIC
Priority to CN201310181146.6A priority Critical patent/CN103277090B/en
Publication of CN103277090A publication Critical patent/CN103277090A/en
Application granted granted Critical
Publication of CN103277090B publication Critical patent/CN103277090B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Geophysics And Detection Of Objects (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

The invention provides a kind of drill rod orientation method based on dipulse magnetic moment location and device, its device comprises two pulse magnetic moment unit, ground survey unit and ground and calculates display unit, two pulse magnetic moment unit are installed in without in magnetic drilling rod, ground survey unit and ground calculate display unit and to be separately positioned on ground and both are by radio communication, and two pulse magnetic moment unit include field coil, microcontroller, high-voltage capacitance, two interlocks electric-controlled switch, clock chip, voltage-doubling boost unit and battery pack; When control under the driving of microcontroller at clock chip interlock electric-controlled switch A connect and interlock electric-controlled switch B disconnects time, then high-voltage capacitor charging, when control under the driving of microcontroller at clock chip interlock electric-controlled switch A disconnect and interlock electric-controlled switch B connects time, then high-voltage capacitance electric discharge produces magnetic field; Voltage-doubling boost unit realizes the conversion of battery pack power voltage; The present invention can carry out real-time dynamic compensation to magnetic field environment, and its certainty of measurement is higher.

Description

Based on drill rod orientation method and the device of dipulse magnetic moment measurement
Technical field
The present invention relates to a kind of drilling rod bearing unit based on dipulse magnetic moment measurement, and relate to a kind of drill rod orientation method, belong to the guiding technique field in directional drilling.
Background technology
Trenchless technology is emerging construction technology, can carry out the construction of underground pipeline when not road pavement " belly breaking ".Horizontal directional drilling is the core of trenchless technology, and directional technology is the key of horizontal directional drilling.
Current directional technology, the mode mostly adopting Magnetic Sensor, gyroscope to combine with accelerometer is measured the azimuth of drilling rod and inclination angle.Magnetic Sensor is subject to the impact of outside magnetic disturbance, and gyrostatic drift is comparatively large, and accelerometer error under dynamic environment is comparatively large, and thus adopt the mode that Magnetic Sensor, gyroscope combine with accelerometer, certainty of measurement is not high.Also have and a kind of electronic compass is applied to technology in non-excavating construction, but complicated in mechanical structure, and very responsive to the magnetic field environment of surrounding, use limited and measure error comparatively large (more than 5%).
Summary of the invention
In view of this, the invention provides a kind of drilling rod bearing unit based on dipulse magnetic moment measurement, only need 2 pulse magnetic moment unit to complete magnetic field in drilling rod and produce function, without the need to accelerometer, also without the need to gyroscope.
Present invention also offers a kind of drill rod orientation method, can position two pulse magnetic moment unit, and calculate azimuth without magnetic drilling rod and angle of slope according to position coordinates, be applicable to carry out guide-localization to the drill bit of special dark (degree of depth the reaches 8 meters) no-digging drilling in underground.
A kind of drilling rod bearing unit based on dipulse magnetic moment location, this drilling rod bearing unit comprises pulse magnetic moment unit a, pulse magnetic moment unit b, ground survey unit and ground and calculates display unit, pulse magnetic moment unit a and pulse magnetic moment unit b is installed in drilling rod, and ground survey unit and ground calculate display unit and to be separately positioned on ground and both pass through radio communication; Pulse magnetic moment unit a and pulse magnetic moment unit b is used for timesharing and produces magnetic field, ground survey unit is used for gathering the parameter of environmental magnetic field, and the parameter that ground calculates the interface measurement unit collection of display unit base area calculates the position of drilling rod and drill bit direction and shows;
Two pulse magnetic moment unit include field coil, microcontroller, high-voltage capacitance, interlock electric-controlled switch A, interlock electric-controlled switch B, clock chip, voltage-doubling boost unit and battery pack; Voltage-doubling boost unit is connected with one end of field coil by interlock electric-controlled switch A, voltage-doubling boost unit is connected with the other end of field coil by interlock electric-controlled switch B, high-voltage capacitance one end is connected with interlock electric-controlled switch A, the other end is connected with interlock electric-controlled switch B, microcontroller is connected with the control end of interlock electric-controlled switch A, the control end of the electric-controlled switch B that links and clock chip respectively, and battery pack powers to respectively voltage-doubling boost unit and high-voltage capacitance;
When control under the driving of microcontroller at clock chip interlock electric-controlled switch A connect and interlock electric-controlled switch B disconnects time, then high-voltage capacitor charging, when control under the driving of microcontroller at clock chip interlock electric-controlled switch A disconnect and interlock electric-controlled switch B connects time, then high-voltage capacitance electric discharge produces magnetic field; Voltage-doubling boost unit realizes the conversion of battery voltage.
It is magnetic gradient tensor instrument that described ground calculates display unit.
A drill rod orientation method for drilling rod bearing unit, its concrete grammar step is as follows:
Step one: pulse magnetic moment unit a and pulse magnetic moment unit b is installed in the head of drilling rod, and make the axis of field coil in two pulse magnetic moment unit parallel with the axis of drilling rod;
Step 2: ground is calculated display unit and ground survey unit is separately positioned on the road surface above drilling rod, utilizes total station survey to go out the inclination angle of ground survey unit, and regulates and make it be in level and keep inactive state;
Step 3: when drilling rod does not stretch into underground, and when two pulse magnetic moment unit do not produce magnetic field, ground calculates the display unit record gradient tensor that now ground survey unit measures and exports G 0b is exported with magnetic induction intensity 0;
Step 4: drilling rod is stretched into down to precalculated position time, external microcontroller sends control signal to clock chip, make pulse magnetic moment unit a generation magnetic field and pulse magnetic moment unit b does not produce magnetic field, ground calculates the display unit record gradient tensor that now ground survey unit measures and exports G 1b is exported with magnetic induction intensity 1; External microcontroller sends control signal to clock chip, and make pulse magnetic moment unit b generation magnetic field and pulse magnetic moment unit a does not produce magnetic field, ground calculates the display unit record gradient tensor that now ground survey unit measures and exports G 2b is exported with magnetic induction intensity 2and the position r (x of two pulse magnetic moment unit is calculated respectively according to formula (1) and formula (2), y, z), described position r based on coordinate be: with the dead ahead of ground survey unit for X-axis, with the three-dimensional system of coordinate (x, y, z) that the right-hand rule is set up;
r 1 = x 1 y 1 z 1 = 3 [ G 1 - G 0 ] - 1 ( B 1 - B 0 ) - - - ( 1 )
r 2 = x 2 y 2 z 2 = 3 [ G 2 - G 0 ] - 1 ( B 2 - B 0 ) - - - ( 2 )
Step 5: set the dead ahead of ground survey unit as 0 °, be the positive direction of angle counterclockwise, then ground calculates drilling rod tried to achieve by display unit azimuth according to formula (3) and formula (4);
α = arccos x 2 - x 1 ( x 2 - x 1 ) 2 + ( y 2 - y 1 ) 2 - - - ( 3 )
The angle of slope of drilling rod is tried to achieve according to formula (4);
β = arccos ( x 2 - x 1 ) 2 + ( y 2 - y 1 ) 2 ( x 2 - x 1 ) 2 + ( y 2 - y 1 ) 2 + ( z 2 - z 1 ) 2 - - - ( 4 )
Wherein, α is that drilling rod treats the direction of operation and the angle of X-axis, and β is that drilling rod treats the direction of operation and the angle of XOY plane;
The position of drilling rod and the direction of rod bit is just obtained through above-mentioned steps.
Beneficial effect:
(1) drilling rod bearing unit of the present invention adopts pulse magnetic moment unit, stronger magnetic field is produced under its mode can boosted by capacitance voltage-multiplying in battery powered situation, and two pulse magnetic moment unit are by the mode of time synchronized, according to certain time interval transmitted pulse magnetic field in turn, in the intermittent phase of pulse, ground survey unit can gather environmental magnetic field, eliminates the impact such as drift, inhomogeneities of environmental magnetic field in real time.
(2) drill rod orientation method of the present invention by acquisition time environmental magnetic field with the gradient having superposed the pulse magnetic moment that environmental magnetic field disturbs, and then accurately calculate gradient and the three-component magnetic moment of pulse magnetic moment, its certainty of measurement is high.
Accompanying drawing explanation
Fig. 1 is the composition diagram of the drilling rod bearing unit that the present invention is based on dipulse magnetic moment location.
Fig. 2 is the composition diagram of pulse magnetic moment unit of the present invention.
Fig. 3 is the definition in coordinate system of the present invention and direction.
Wherein, 1-ground calculates display unit, 2-ground survey unit, 3-road surface, 4-pulse magnetic moment unit a, 5-pulse magnetic moment unit b, 6-without magnetic drilling rod, 7-drill bit, the coordinate (x1 of 8-pulse magnetic moment unit a, y1, z1), the coordinate (x2 of 9-pulse magnetic moment unit b, y2, z2), the azimuth angle alpha of 10-drilling rod, the angle of inclination beta of 11-drilling rod.
Detailed description of the invention
To develop simultaneously embodiment below in conjunction with accompanying drawing, describe the present invention.
As shown in Figure 1, the invention provides a kind of drilling rod bearing unit based on dipulse magnetic moment location, this drilling rod bearing unit comprises pulse magnetic moment unit a, pulse magnetic moment unit b, ground calculates display unit and ground survey unit, ground survey unit adopts magnetic gradient tensor instrument, and ancillary equipment is without magnetic drilling rod and total powerstation; Pulse magnetic moment unit a and pulse magnetic moment unit b is installed in drilling rod, and ground survey unit and ground calculate display unit and to be separately positioned on ground and both pass through radio communication; Pulse magnetic moment unit a and pulse magnetic moment unit b is used for timesharing and produces magnetic field, ground survey unit is used for gathering the parameter of environmental magnetic field, and the parameter that ground calculates the interface measurement unit collection of display unit base area calculates the position of drilling rod and drill bit direction and shows.
As shown in Figure 2, two pulse magnetic moment unit include field coil, microcontroller, high-voltage capacitance, interlock electric-controlled switch A, interlock electric-controlled switch B, clock chip, voltage-doubling boost unit and battery pack; Voltage-doubling boost unit is connected with one end of field coil by interlock electric-controlled switch A, voltage-doubling boost unit is connected with the other end of field coil by interlock electric-controlled switch B, high-voltage capacitance one end is connected with interlock electric-controlled switch A, the other end is connected with interlock electric-controlled switch B, microcontroller is connected with the control end of interlock electric-controlled switch A, the control end of the electric-controlled switch B that links and clock chip respectively, and battery pack powers to respectively voltage-doubling boost unit and high-voltage capacitance.
Wherein field coil by close around solenoid and the core material of pole shape form, the quadratic surface (sphere or ellipsoid) of standard is processed at the two ends of magnetic core, to ensure that it can by farthest uniform magnetization, this design can produce larger magnetic field energy with less volume.
Voltage-doubling boost unit can provide larger electric current (being not less than 10A) while providing larger voltage (being not less than 200V), and continues the regular hour (being not less than 1ms).
When control under the driving of microcontroller at clock chip interlock electric-controlled switch A connect and interlock electric-controlled switch B disconnects time, then high-voltage capacitor charging, when control under the driving of microcontroller at clock chip interlock electric-controlled switch A disconnect and interlock electric-controlled switch B connects time, then high-voltage capacitance electric discharge produces magnetic field; Voltage-doubling boost unit realizes the conversion of battery voltage.
A kind of drill rod orientation method, the core of the method is to position two pulse magnetic moments, and then calculate azimuth and the angle of slope of drilling rod according to position coordinates, its concrete grammar step is as follows:
Step one: pulse magnetic moment unit a and pulse magnetic moment unit b is installed in the head without magnetic drilling rod, both at a distance of 1m, and make the axis of field coil in two pulse magnetic moment unit parallel with the axis without magnetic drilling rod;
Step 2: ground is calculated display unit and ground survey unit is separately positioned on the road surface above without magnetic drilling rod, utilizes total station survey to go out the inclination angle of ground survey unit, and regulates and make it be in level and keep inactive state;
Step 3: when not stretching into underground without magnetic drilling rod, and when two pulse magnetic moment unit do not produce magnetic field, the gradient tensor that ground calculates display unit record now magnetic gradient tensor instrument measurement environment magnetic field exports G 0b is exported with magnetic induction intensity 0;
Step 4: will without magnetic drilling rod stretch into down to precalculated position time, external microcontroller sends control signal to clock chip, make pulse magnetic moment unit a produce magnetic field and pulse magnetic moment unit b when not producing magnetic field, the gradient tensor that ground calculates display unit record now tensor magnetic gradiometer measurement environment magnetic field exports G 1b is exported with magnetic induction intensity 1; External microcontroller sends control signal to clock chip, makes pulse magnetic moment unit b produce magnetic field and pulse magnetic moment unit a when not producing magnetic field, and the gradient tensor that ground calculates display unit record now tensor magnetic gradiometer measurement environment exports G 2b is exported with magnetic induction intensity 2and the position r (x of two pulse magnetic moment unit is calculated respectively according to formula (1) and formula (2), y, z), described position r based on coordinate be: with the dead ahead of ground survey unit for X-axis, with the three-dimensional system of coordinate (x, y, z) that the right-hand rule is set up;
r 1 = x 1 y 1 z 1 = 3 [ G 1 - G 0 ] - 1 ( B 1 - B 0 ) - - - ( 1 )
r 2 = x 2 y 2 z 2 = 3 [ G 2 - G 0 ] - 1 ( B 2 - B 0 ) - - - ( 2 )
Can obtain r 1 = x 1 y 1 z 1 = 3 × 69.99 1.74 63.60 1.74 14.08 - 79.11 63.60 - 79.11 - 84.07 - 1 - 132.09 129.33 148.21 = 1.09 1.49 5.10 ;
r 3 = x 2 y 2 z 2 = 3 × 31.42 3.06 29.30 3.06 - 2.50 - 39.33 29.30 - 39.33 - 28.91 - 1 - 74.44 79.38 68.88 = 1.30 1.78 6.04 ;
Step 5: as shown in Figure 3, if the dead ahead of ground survey unit is 0 ° of direction, be counterclockwise the positive direction of angle, then calculating display unit in ground tries to achieve azimuth without magnetic drilling rod according to formula (3) and formula (4);
α = arccos x 2 - x 1 ( x 2 - x 1 ) 2 + ( y 2 - y 1 ) 2 - - - ( 3 )
The angle of slope without magnetic drilling rod is tried to achieve according to formula (4);
β = arccos ( x 2 - x 1 ) 2 + ( y 2 - y 1 ) 2 ( x 2 - x 1 ) 2 + ( y 2 - y 1 ) 2 + ( z 2 - z 1 ) 2 - - - ( 4 )
Wherein, α treats the direction of operation and the angle of X-axis without magnetic drilling rod, and β treats the direction of operation and the angle of XOY plane without magnetic drilling rod;
Can obtain
Just obtain without the position of magnetic drilling rod and the direction without magnetic rod bit through above-mentioned steps.
If the inclination angle utilizing inclinator to record without magnetic drilling rod is 69.2 °, the azimuth recorded without magnetic drilling rod by targeted electronic compass is 54.1 °, the result that visible method provided by the invention records and the test result of inclinator, electronic compass are consistent (error are less than 0.1 °), and namely certainty of measurement of the present invention is high.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (3)

1. the drilling rod bearing unit based on dipulse magnetic moment location, it is characterized in that, this drilling rod bearing unit comprises pulse magnetic moment unit a, pulse magnetic moment unit b, ground survey unit and ground and calculates display unit, pulse magnetic moment unit a and pulse magnetic moment unit b is installed in drilling rod, and ground survey unit and ground calculate display unit and to be separately positioned on ground and both pass through radio communication; Pulse magnetic moment unit a and pulse magnetic moment unit b is used for timesharing and produces magnetic field, ground survey unit is used for gathering the parameter of environmental magnetic field, and the parameter that ground calculates the interface measurement unit collection of display unit base area calculates the position of drilling rod and drill bit direction and shows;
Two pulse magnetic moment unit include field coil, microcontroller, high-voltage capacitance, interlock electric-controlled switch A, interlock electric-controlled switch B, clock chip, voltage-doubling boost unit and battery pack; Voltage-doubling boost unit is connected with one end of field coil by interlock electric-controlled switch A, voltage-doubling boost unit is connected with the other end of field coil by interlock electric-controlled switch B, high-voltage capacitance one end is connected with interlock electric-controlled switch A, the other end is connected with interlock electric-controlled switch B, microcontroller is connected with the control end of interlock electric-controlled switch A, the control end of the electric-controlled switch B that links and clock chip respectively, and battery pack powers to respectively voltage-doubling boost unit and high-voltage capacitance;
When control under the driving of microcontroller at clock chip interlock electric-controlled switch A connect and interlock electric-controlled switch B disconnects time, then high-voltage capacitor charging, when control under the driving of microcontroller at clock chip interlock electric-controlled switch A disconnect and interlock electric-controlled switch B connects time, then high-voltage capacitance electric discharge produces magnetic field; Voltage-doubling boost unit realizes the conversion of battery voltage.
2. as claimed in claim 1 based on the drilling rod bearing unit of dipulse magnetic moment location, it is characterized in that, it is magnetic gradient tensor instrument that described ground calculates display unit.
3. a drill rod orientation method for drilling rod bearing unit as claimed in claim 1, it is characterized in that, its concrete grammar step is as follows:
Step one: pulse magnetic moment unit a and pulse magnetic moment unit b is installed in the head of drilling rod, and make the axis of field coil in two pulse magnetic moment unit parallel with the axis of drilling rod;
Step 2: ground is calculated display unit and ground survey unit is separately positioned on the road surface above drilling rod, utilizes total station survey to go out the inclination angle of ground survey unit, and regulates and make it be in level and keep inactive state;
Step 3: when drilling rod does not stretch into underground, and when two pulse magnetic moment unit do not produce magnetic field, ground calculates the display unit record gradient tensor that now ground survey unit measures and exports G 0b is exported with magnetic induction intensity 0;
Step 4: drilling rod is stretched into down to precalculated position time, external microcontroller sends control signal to clock chip, make pulse magnetic moment unit a generation magnetic field and pulse magnetic moment unit b does not produce magnetic field, ground calculates the display unit record gradient tensor that now ground survey unit measures and exports G 1b is exported with magnetic induction intensity 1; External microcontroller sends control signal to clock chip, and make pulse magnetic moment unit b generation magnetic field and pulse magnetic moment unit a does not produce magnetic field, ground calculates the display unit record gradient tensor that now ground survey unit measures and exports G 2b is exported with magnetic induction intensity 2, and calculate the position r(x of two pulse magnetic moment unit respectively according to formula (1) and formula (2), y, z), described position r based on coordinate be: with the dead ahead of ground survey unit for X-axis, with the right-hand rule set up three-dimensional system of coordinate (x, y, z);
r 1 = x 1 y 1 z 1 = 3 [ G 1 - G 0 ] - 1 ( B 1 - B 0 ) - - - ( 1 )
r 2 = x 2 y 2 z 2 = 3 [ G 2 - G 0 ] - 1 ( B 2 - B 0 ) - - - ( 2 )
Step 5: set the dead ahead of ground survey unit as 0 °, be the positive direction of angle counterclockwise, then ground calculates drilling rod tried to achieve by display unit azimuth according to formula (3) and formula (4);
α = a r c c o s x 2 - x 1 ( x 2 - x 1 ) 2 + ( y 2 - y 1 ) 2 - - - ( 3 )
The angle of slope of drilling rod is tried to achieve according to formula (4);
β = a r c c o s ( x 2 - x 1 ) 2 + ( y 2 - y 1 ) 2 ( x 2 - x 1 ) 2 + ( y 2 - y 1 ) 2 + ( z 2 - z 1 ) 2 - - - ( 4 )
Wherein, α is that drilling rod treats the direction of operation and the angle of X-axis, and β is that drilling rod treats the direction of operation and the angle of XOY plane;
The position of drilling rod and the direction of rod bit is just obtained through above-mentioned steps.
CN201310181146.6A 2013-05-16 2013-05-16 Based on drill rod orientation method and the device of dipulse magnetic moment measurement Expired - Fee Related CN103277090B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310181146.6A CN103277090B (en) 2013-05-16 2013-05-16 Based on drill rod orientation method and the device of dipulse magnetic moment measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310181146.6A CN103277090B (en) 2013-05-16 2013-05-16 Based on drill rod orientation method and the device of dipulse magnetic moment measurement

Publications (2)

Publication Number Publication Date
CN103277090A CN103277090A (en) 2013-09-04
CN103277090B true CN103277090B (en) 2015-10-21

Family

ID=49059694

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310181146.6A Expired - Fee Related CN103277090B (en) 2013-05-16 2013-05-16 Based on drill rod orientation method and the device of dipulse magnetic moment measurement

Country Status (1)

Country Link
CN (1) CN103277090B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104088625B (en) * 2014-05-21 2016-08-24 武汉长盛煤安科技有限公司 Coal mine down-hole drilling wireless drilling track and hole depth measurement device and method
CN104131808B (en) * 2014-07-16 2016-08-17 中国海洋石油总公司 A kind of device based on transient electromagnetic method coordinate detection accident well
CN104482916A (en) * 2014-12-04 2015-04-01 江苏沃迪建设工程有限公司 Infrared guidance system
CN115095277B (en) * 2022-06-30 2023-04-07 中国石油天然气集团有限公司 Magnetic positioning system and method for tunnel of energy storage power station

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6597178B1 (en) * 2002-10-18 2003-07-22 Schlumberger Technology Corporation Sensor for detecting the magnetic field in the area of downhole casing
CN1657742A (en) * 2004-02-16 2005-08-24 中国石油勘探开发研究院钻井工艺研究所 Electromagnetic telemetering method and system of measuring by bit
CN102536220A (en) * 2011-12-28 2012-07-04 中国石油天然气集团公司 Ground test method and ground test device for remote intersection tools
CN202391408U (en) * 2011-12-23 2012-08-22 中天启明石油技术有限公司 Anti-collision range unit based on alternating magnetic field measurement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7049821B2 (en) * 2003-05-29 2006-05-23 Schlumberger Technology Corporation Determination of borehole geometry inside cased wells with crosswell electromagnetics

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6597178B1 (en) * 2002-10-18 2003-07-22 Schlumberger Technology Corporation Sensor for detecting the magnetic field in the area of downhole casing
CN1657742A (en) * 2004-02-16 2005-08-24 中国石油勘探开发研究院钻井工艺研究所 Electromagnetic telemetering method and system of measuring by bit
CN202391408U (en) * 2011-12-23 2012-08-22 中天启明石油技术有限公司 Anti-collision range unit based on alternating magnetic field measurement
CN102536220A (en) * 2011-12-28 2012-07-04 中国石油天然气集团公司 Ground test method and ground test device for remote intersection tools

Also Published As

Publication number Publication date
CN103277090A (en) 2013-09-04

Similar Documents

Publication Publication Date Title
CN106501861B (en) A kind of small intelligent offshore earthquake electromagnetic data acquisition system
CN102736114B (en) The Apparatus and method for of electromagnetism and integrated exploration thereof
CN101806210B (en) System using solenoid groups to achieve electromagnetic guiding distance measurement while drilling
CN101852078B (en) Electromagnetic distance measurement guide system for double solenoid set during drilling
CN103277090B (en) Based on drill rod orientation method and the device of dipulse magnetic moment measurement
CN103266853B (en) Drill rod orientation method and device on basis of single-pulse magnetic moment measurement
CN102877830B (en) Underground orientation method based on rotating magnetic field
CN103592697B (en) The associating advanced prediction method of the underground engineering priori shape information constraints such as tunnel
CN202837558U (en) Underground karst cave earthquake cross-hole CT (computer tomography) detection and tomographic imaging device
CN104407392A (en) One-transmitting and three-receiving type detection device for water filling goaf, and detection method
CN103809204A (en) Field audio magnetotelluric data acquisition method
CN102622636A (en) Magnetic label and method for monitoring and positioning
CN102928884B (en) Positioning method of magnetic sensor
CN107065019A (en) Applied to road disaster and the 3 D electromagnetic imaging device and application method that collapse detection
CN109141408A (en) A kind of error compensating method that growing defeated underground piping positioning system and implement system
CN101482621A (en) Method for monitoring acceleration of sliding posture of sliding body
CN104375194A (en) Electrical source transient electromagnetic exploration method in water-rich area of deep mining mine
CN104199114A (en) Transient electromagnetic and nuclear magnetic resonance joint interpretation based tunnel advanced prediction technology
CN105891895B (en) A kind of system and method determining sky wave propagation characteristic
CN103344995B (en) Introduce the detection method of the nuclear magnetic resonance directional detection device of artificial magnetic field
CN106886050A (en) A kind of Roadway Leading Prospecting device and method
CN105842738A (en) Underground target body abnormality quantitative determination method and apparatus
CN103176216A (en) Pipeline detection method and borehole antenna
CN113433156B (en) Nuclear magnetic sensor-based system and method for monitoring water content of perisea land-making foundation
CN214953200U (en) General ground cross-hole resistivity CT detection cable for dry and wet holes

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151021

Termination date: 20180516

CF01 Termination of patent right due to non-payment of annual fee