CN105203071B - A kind of direction-finding device and direction-finding method for geostress survey - Google Patents
A kind of direction-finding device and direction-finding method for geostress survey Download PDFInfo
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- CN105203071B CN105203071B CN201410287664.0A CN201410287664A CN105203071B CN 105203071 B CN105203071 B CN 105203071B CN 201410287664 A CN201410287664 A CN 201410287664A CN 105203071 B CN105203071 B CN 105203071B
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Abstract
The present invention provides a kind of direction-finding device and direction-finding method for geostress survey, direction-finding device independently measures direction-finding device, including the first Measurement channel, the second Measurement channel, the 3rd Measurement channel, processor, memory, clock module and power module for triple channel；The processor is electrically connected with first Measurement channel, second Measurement channel, the 3rd Measurement channel, the memory, the clock module and the power module respectively；Wherein, first Measurement channel includes magnetic survey module, the first signal conditioning circuit and the first analog-digital converter of series connection；Second Measurement channel includes inclination angle measurement module, secondary signal modulate circuit and the second analog-digital converter of series connection；3rd Measurement channel includes anglec of rotation measurement module, the 3rd signal conditioning circuit and the 3rd analog-digital converter of series connection.The orientation works of geostress survey can be carried out in upright opening, lateral aperture and inclined hole at the same time, have the advantages that have a wide range of application.
Description
Technical field
The invention belongs to geostress survey technical field, and in particular to a kind of direction-finding device and survey for geostress survey
To method.
Background technology
With continuing to increase for the engineerings such as China digs up mine, tunnel, water conservancy and hydropower, geothermal energy development and nuclear waste disposal, rock
A series of problems, such as quick-fried, roadway deformation, high slope unstability, is further prominent, therefore, carries out geostress survey, finds out crustal stress shape
State has important practical significance, and can be studied for geodynamic study, fault activities Journal of Sex Research and geo-hazard early-warning and provide weight
The scientific basis wanted.
Hydraulic fracturing is a kind of earth stress measuring method to grow up the seventies, and this method is International Rock mechanics
Can one of method for being recommended of the definite rock stress promulgated of the test method committee, be at present in the world can preferably directly into
The advanced method of row deep-hole blast.
In traditional water pressure supporing, the measurement of fracturing fracture is more using the stamp with finder
Device.The equipment that stamp device wraps up one layer of plasticity rubber or similar material for outer surface, by stamp device together with pressure pipeline
Underground fracture section position is sent into, then by stamp device pressurized expansion, to make all pressure breaks on the wall of a borehole that hydrofracturing produces
Crack is imprinted on stamp device, this mark can keep enough time, to can record after stamp device is carried to well.Separately
Outside, since stamp device bottom is provided with finder, the data recorded by finder determine the orientation of fracturing fracture.
Specifically, when carrying out vertical hole measurement, the finder of stamp device bottom installation is electronic compass, passes through electronics sieve
The magnetic direction angle in disk measurement pressure break crack；When carrying out horizontal hole measurement, the finder of stamp device bottom installation is adopted for image
Collect equipment, the method for development of periodically taking pictures with mechanical weight and using image capture device obtains the folder of crack and horizontal plane
Angle；When carrying out inclined hole measurement, the azimuth for judging crack, pitch angle and roll angle are used by a variety of instruments synthesis.
It can be seen from the above that determined using traditional finder during the orientation of fracturing fracture, it is necessary to be chosen not according to the direction in hole
Same measuring instrument, has the problem of versatility is low and cumbersome；Especially when measuring environment is iron content class mineral reserve or large-scale
During structure interference, the finder such as electronic compass can fail, so as to cause measurement to fail.
The content of the invention
In view of the defects existing in the prior art, the present invention provides a kind of direction-finding device and direction finding side for geostress survey
Method, to solve the above problems.
The technical solution adopted by the present invention is as follows：
The present invention provides a kind of direction-finding device for geostress survey, which independently measures direction finding for triple channel
Device, including the first Measurement channel, the second Measurement channel, the 3rd Measurement channel, processor, memory, clock module and power supply
Module；The processor respectively with first Measurement channel, second Measurement channel, the 3rd Measurement channel, described
Memory, the clock module and the power module are electrically connected；
Wherein, first Measurement channel includes magnetic survey module, the first signal conditioning circuit and the first mould of series connection
Number converter；
Second Measurement channel includes inclination angle measurement module, secondary signal modulate circuit and the second analog-to-digital conversion of series connection
Device；
Anglec of rotation measurement module, the 3rd signal conditioning circuit and the 3rd modulus that 3rd Measurement channel includes series connection turn
Parallel operation.
Preferably, the magnetic survey module includes mutually perpendicular X to geomagnetic sensor, Y-direction geomagnetic sensor and Z-direction
Geomagnetic sensor；
The inclination angle measurement module adds including mutually perpendicular X to acceleration transducer, Y-direction acceleration transducer and Z-direction
Velocity sensor；
The anglec of rotation measurement module includes mutually perpendicular X to gyroscope, Y-direction gyroscope and Z-direction gyroscope；
The processor is used for according to the magnetic survey module, the inclination angle measurement module and the rotation angular measurement mould
The measurement result of block, calculates magnetic direction and the inclination angle in pressure break crack；
The memory is used for magnetic direction and the inclination angle for storing each set period of time pressure break crack；
The clock module is used to control the processor dormancy or wake-up；
The power module includes the battery and voltage conversion chip of series connection, by the voltage conversion chip, to described
Processor provides the electric energy of adaptation.
Preferably, first Measurement channel, second Measurement channel, the 3rd Measurement channel, the processor,
The memory, the clock module and the power module are integrated into a direction finding circuit board.
Preferably, the direction-finding device further includes copper pipe；The direction finding circuit board is placed in the inner wall of the copper pipe, and with institute
Copper pipe is stated to be fixedly connected；Alternatively, the direction finding circuit board is fixed on fender bracket, then the direction finding circuit board will be fixed with
Fender bracket is fixed on the copper pipe inner wall.
The present invention also provides a kind of direction-finding method of the direction-finding device for geostress survey, comprise the following steps：
S1, before measurement, assembles to obtain the direction-finding device described in claim 4 on ground；
S2, initial parameter configuration is carried out to the direction-finding device；
S3, for the direction-finding device described in S1, after direction finding circuit board is fixed on the copper pipe inner wall, in copper pipe
Both ends installation waterproof seal；
S4, the direction-finding device that S3 is obtained are installed to the bottom of stamp device, then will be provided with the print of the direction-finding device
Mold is sent into underground fracture section position, and by stamp device pressurized expansion, after keeping the bulbs of pressure of certain time, crack will be in stamp
Mark is left on device, the direction-finding device carries out direction finding work, is specially：
When carrying out upright opening geostress survey, start the first Measurement channel, when recording different by magnetic survey module
Carve direction-finding device axis horizontal plane projection magnetic azinuth and store into memory；
When carrying out lateral aperture geostress survey, start the second Measurement channel, when recording different by inclination angle measurement module
Direction-finding device is carved along the rotating angle, that is, roll angle of own axes, and, record direction-finding device axis and horizontal plane at different moments
Angle, that is, pitch angle；Then by roll angle and pitch angle storage into memory；
When carrying out inclined hole geostress survey, the first Measurement channel of combined launch and the second Measurement channel, use ground magnetic survey
The magnetic direction angle of module record at different moments is measured, and, record roll angle at different moments using inclination angle measurement module and bow
The elevation angle, then by the storage of magnetic direction angle, roll angle and pitch angle into memory；
S5, after being measured, takes out the direction-finding device, the number measured by each Measurement channel is read from the memory
According to by analyzing data, the fracturing fracture produced to hydraulic fracturing is oriented, and is specially：
When carrying out upright opening geostress survey, read from the memory magnetic survey module record it is each when
The magnetic azinuth at quarter, so as to extrapolate the magnetic azinuth of the fracturing fracture of hydraulic fracturing generation；
When carrying out lateral aperture geostress survey, read from the memory inclination angle measurement module record it is each when
The roll angle and pitch angle at quarter, so that the folder that the direction for extrapolating the fracturing fracture of hydraulic fracturing generation is produced with ground level
Angle；
When carrying out inclined hole geostress survey, each moment of the magnetic survey module record is read from the memory
Magnetic azinuth, and, the roll angle and pitch angle at each moment of inclination angle measurement module record are read, so as to extrapolate
The angle that the fracturing fracture direction that hydraulic fracturing produces is produced with earth magnetism field direction, and fracturing fracture direction are produced with ground level
Raw angle, also extrapolates the axis of inclined hole and the angle of ground level.
Preferably, further include：
When carrying out upright opening geostress survey, while the first Measurement channel is started, also start the 3rd Measurement channel,
The real-time attitude information of direction-finding device is recorded by anglec of rotation measurement module, the information recorded by anglec of rotation measurement module is over the ground
The information of magnetic measurement module record is checked；
When carrying out lateral aperture geostress survey, while the second Measurement channel is started, also start the 3rd Measurement channel,
The real-time attitude information of direction-finding device is recorded by anglec of rotation measurement module, the information recorded by anglec of rotation measurement module is to inclining
The information of angular measurement module record is checked；
When carrying out inclined hole geostress survey, while the first Measurement channel and the second Measurement channel is started, also start
3rd Measurement channel, the real-time attitude information of direction-finding device is recorded by anglec of rotation measurement module, passes through anglec of rotation measurement module
The information for information and inclination angle the measurement module record that the information of record records magnetic survey module is checked.
Preferably, measurement knot of the anglec of rotation measurement module to the magnetic survey module and/or inclination angle measurement module
Fruit is checked, and used review method is specially：
It is located at before direction-finding device and stamp device will being sent into underground fracture section position, in well head control direction-finding device
Processor removes the attitude information obtained by anglec of rotation measurement module measurement, then records the current magnetic azimuth of direction-finding device
Angle A0, roll angle R0With pitch angle P0, current time is denoted as T0；
When direction-finding device and stamp device are put into underground fracture section position, underground fracture crack is completed according to routine operation
Orientation works, meanwhile, anglec of rotation measurement module records the real time rotation Azimuth, Speed, Altitude V at each momentA(t), angular velocity in roll VR
(t) and rate of pitch VP(t)；
Anglec of rotation measurement module checks the measurement result of magnetic survey module, refers specifically to：
If the stamp moment is T1, the azimuth of moment magnetic survey module record is A2, the rolling of inclination angle measurement module record
Corner is R2, pitch angle P2；
The azimuth angle that the direction-finding device recorded by anglec of rotation measurement module turns over isFinally
Direction-finding device azimuth value be A1=(A '+A0) %360 °, ifThen think that measurement result is credible, instead
Needs remeasure；
Anglec of rotation measurement module checks the measurement result of inclination angle measurement module, refers specifically to：
The roll angle angle that the direction-finding device recorded by anglec of rotation measurement module turns over isFinally
Direction-finding device roll angle numerical value be R1=(R '+R0) %360 °, ifThen think that inclination angle measurement module is surveyed
The roll angle credible result measured, on the contrary need to remeasure；
The pitch angle angle that the direction-finding device recorded by anglec of rotation measurement module turns over isFinally
Direction-finding device pitch angle numerical value be P1=(P '+P0) %360 °, ifThen think inclination angle measurement module measurement
The pitch angle credible result arrived, on the contrary need to remeasure.
Preferably, in S2, the initial parameter of the direction-finding device, including delay time, sampling interval, sampling length are configured
Degree；According to the time delay configurable clock generator module of setting, then processor preserves each buffer status, into sleep mode；
Subsequent clock module enters operating mode, after reaching time delay, clock module output electric signal wake-up processing
Device, processor control the output valve of each measurement module of corresponding analog-digital converter collection after starting,
And the measured value of each measurement module is saved in memory；Then processor configures again according to the sampling interval
Clock module, CPU preserves each buffer status, into sleep mode；Subsequent clock module enters operating mode, it will sampled
Interval exports electric signal after reaching and wakes up processor, processor is and so on circulated into working status ..., until circulation
After number reaches the sampling length of setting, processor enters sleep mode, terminates DATA REASONING operation.
Preferably, for when carrying out upright opening, lateral aperture or inclined hole geostress survey in the environment of magnetic interference source, revolving
The output valve of outer corner measurement module replaces magnetic survey module to complete test job.
Preferably, the magnetic interference source is iron ore.
Provided by the present invention for the direction-finding device and direction-finding method of geostress survey, has the following advantages：
(1) orientation works of geostress survey can be carried out in upright opening, lateral aperture and inclined hole at the same time, are particularly suitable for
In the work that geostress survey is carried out using hydraulic fracturing, have the advantages that have a wide range of application；
(2) direction-finding device has compact, the advantages of carrying easy to field；
(3) three kinds of direction-finding devices that can work independently built in direction-finding device, are respectively magnetic survey module, inclination angle measurement mould
Block and anglec of rotation measurement module, also, the measurement result of each measurement module can be checked mutually, improve the precision and dress of direction finding
The reliability put；
(4) due to introducing anglec of rotation measurement module so that direction-finding device can have iron ore or other magnetic interferences
Reliably working in the environment of source, improves the environmental suitability of direction-finding device；
(5) the direction finding circuit board of direction-finding device is low-power consumption mode, can effectively reduce the power consumption of direction-finding device, extends electricity
The pond working time, meets the needs of long-time work.
Brief description of the drawings
Fig. 1 is the structure diagram provided by the present invention for the direction-finding device of geostress survey；
Fig. 2 is that stamp device is secured together the schematic diagram being fetched into after progress underground survey on well with direction-finding device.
Embodiment
Below in conjunction with attached drawing, the present invention is described in detail：
As shown in Figure 1, the present invention provides a kind of direction-finding device for geostress survey, can be at the same time in upright opening, level
Used in hole and inclined hole geostress survey, which independently measures direction-finding device for triple channel, including the first Measurement channel,
Second Measurement channel, the 3rd Measurement channel, processor, memory, clock module and power module；Processor is surveyed with first respectively
Passage, the second Measurement channel, the 3rd Measurement channel, memory, clock module and power module is measured to be electrically connected；
Wherein, the first Measurement channel includes magnetic survey module, the first signal conditioning circuit and the first modulus turn of series connection
Parallel operation；In addition, according to practical application request, magnetic survey module can be mutually perpendicular X to geomagnetic sensor, Y-direction earth magnetism
Sensor and Z-direction geomagnetic sensor；Wherein, geomagnetic sensor selects magnetoresistive sensor or fluxgate sensor；
Second Measurement channel includes inclination angle measurement module, secondary signal modulate circuit and the second analog-digital converter of series connection；
Inclination angle measurement module can select mutually perpendicular X to acceleration transducer, Y-direction acceleration transducer and Z-direction acceleration sensing
Device；
3rd Measurement channel includes anglec of rotation measurement module, the 3rd signal conditioning circuit and the 3rd analog-to-digital conversion of series connection
Device.Anglec of rotation measurement module can select mutually perpendicular X to three-axis gyroscope, Y-direction three-axis gyroscope and Z-direction three axis accelerometer
Instrument；Three-axis gyroscope can be angular-rate sensor；
Processor is used for the measurement result according to magnetic survey module, inclination angle measurement module and anglec of rotation measurement module, meter
Calculate magnetic direction and the inclination angle in pressure break crack；
Memory is used for magnetic direction and the inclination angle for storing each set period of time pressure break crack；
Clock module is used for control processor dormancy or wake-up, so as to reduce direction-finding device power consumption.
Power module includes the battery and voltage conversion chip of series connection, by voltage conversion chip, is provided to processor suitable
The electric energy matched somebody with somebody.
In the present invention, the first Measurement channel, the second Measurement channel, the 3rd Measurement channel, processor, memory, clock mould
Block and power module are integrated into a direction finding circuit board.Then, direction finding circuit board is placed in the inner wall of copper pipe, and is fixed with copper pipe
Connection；Alternatively, direction finding circuit board can also be fixed on fender bracket, then the fender bracket for being fixed with direction finding circuit board is fixed
Onto copper pipe inner wall.
The present invention also provides a kind of direction-finding method of above-mentioned direction-finding device, comprise the following steps：
S1, before measurement, assembles to obtain above-mentioned direction-finding device on ground；
S2, initial parameter configuration is carried out to direction-finding device；
In practical application, direction-finding device is connected with computer by data cable, then using computer to direction-finding device
Carry out initial configuration.
S3, for the direction-finding device of S1, after direction finding circuit board is fixed on copper pipe inner wall, pacifies at the both ends of copper pipe
Fill waterproof seal；
S4, the direction-finding device that S3 is obtained are installed to the bottom of stamp device, then will be provided with the stamp device of direction-finding device
Underground fracture section position is sent into by cable car or drilling rod, by stamp device pressurized expansion, after keeping the bulbs of pressure of certain time,
Crack will leave mark on stamp device, and direction-finding device carries out direction finding work, is specially：
When carrying out upright opening geostress survey, start the first Measurement channel, when recording different by magnetic survey module
Carve direction-finding device axis horizontal plane projection magnetic azinuth (Azimuth Angle) and store into memory；
When carrying out lateral aperture geostress survey, start the second Measurement channel, when recording different by inclination angle measurement module
Direction-finding device is carved along the rotating angle, that is, roll angle of own axes (Roll Angle), and, record direction-finding device at different moments
Angle, that is, pitch angle of axis and horizontal plane (Pitch Angle)；Then by roll angle and pitch angle storage into memory；
When carrying out inclined hole geostress survey, the first Measurement channel of combined launch and the second Measurement channel, use ground magnetic survey
The magnetic direction angle of module record at different moments is measured, and, record roll angle at different moments using inclination angle measurement module and bow
The elevation angle, then by the storage of magnetic direction angle, roll angle and pitch angle into memory；
S5, after being measured, takes out direction-finding device, the data measured by each Measurement channel is read from memory, are passed through
Data are analyzed, the fracturing fracture produced to hydraulic fracturing is oriented, and is specially：
When carrying out upright opening geostress survey, the earth magnetism at each moment of magnetic survey module record is read from memory
Azimuth, so as to extrapolate the magnetic azinuth of the fracturing fracture of hydraulic fracturing generation；As shown in Fig. 2, it is stamp device and survey
The schematic diagram being fetched into after progress underground survey on well is secured together to device, wherein, 1 is stamp device；2 be direction-finding device,
Specially magnetic survey module；3 cracks recorded for stamp device；4 be magnetic survey module reference；5 be fractuer direction；6 be magnetic
North；, it is necessary to actual measurement fractuer direction and the angle of direction-finding device benchmark, then foundation letter when calculating the deflection of fracturing fracture
Single geometrical relationship can calculate the deflection of fracturing fracture.The magnetic direction angle recorded with reference to figure 2, a for direction-finding device, b
Angle for the fracturing fracture and direction-finding device benchmark that actually measure, the deflection of fracturing fracture is a+b at this time.
When carrying out lateral aperture geostress survey, the rolling at each moment of inclination angle measurement module record is read from memory
Angle and pitch angle, so that the angle that the direction for extrapolating the fracturing fracture of hydraulic fracturing generation is produced with ground level；
When carrying out inclined hole geostress survey, the earth magnetism side at each moment of magnetic survey module record is read from memory
Parallactic angle, and, the roll angle and pitch angle at each moment of inclination angle measurement module record are read, so as to extrapolate hydraulic fracturing production
The angle that raw fracturing fracture direction is produced with earth magnetism field direction, and the angle that fracturing fracture direction is produced with ground level, also
Extrapolate the axis of inclined hole and the angle of ground level.
For when carrying out upright opening, lateral aperture or inclined hole geostress survey in the environment of magnetic interference source, the anglec of rotation is surveyed
The output valve for measuring module replaces magnetic survey module to complete test job.
In addition, further including result review step, so as to improve the reliability of the measurement result of each measurement module, it is specially：
When carrying out upright opening geostress survey, while the first Measurement channel is started, also start the 3rd Measurement channel,
The real-time attitude information of direction-finding device is recorded by anglec of rotation measurement module, the information recorded by anglec of rotation measurement module is over the ground
The information of magnetic measurement module record is checked；
When carrying out lateral aperture geostress survey, while the second Measurement channel is started, also start the 3rd Measurement channel,
The real-time attitude information of direction-finding device is recorded by anglec of rotation measurement module, the information recorded by anglec of rotation measurement module is to inclining
The information of angular measurement module record is checked；
When carrying out inclined hole geostress survey, while the first Measurement channel and the second Measurement channel is started, also start
3rd Measurement channel, the real-time attitude information of direction-finding device is recorded by anglec of rotation measurement module, passes through anglec of rotation measurement module
The information for information and inclination angle the measurement module record that the information of record records magnetic survey module is checked.
Wherein, anglec of rotation measurement module checks the measurement result of magnetic survey module and/or inclination angle measurement module,
Used review method is specially：
It is located at before direction-finding device and stamp device will being sent into underground fracture section position, in well head control direction-finding device
Processor removes the attitude information obtained by anglec of rotation measurement module measurement, then records the current magnetic azimuth of direction-finding device
Angle A0, roll angle R0With pitch angle P0, current time is denoted as T0, and by processor storage into memory；
When direction-finding device and stamp device are put into underground fracture section position, underground fracture crack is completed according to routine operation
Orientation works, meanwhile, anglec of rotation measurement module records the real time rotation Azimuth, Speed, Altitude V at each momentA(t), angular velocity in roll VR
(t) and rate of pitch VP(t), and by processor storage into memory；
Anglec of rotation measurement module checks the measurement result of magnetic survey module, refers specifically to：
If the stamp moment is T1, the azimuth of moment magnetic survey module record is A2, the rolling of inclination angle measurement module record
Corner is R2, pitch angle P2；
The azimuth angle that the direction-finding device recorded by anglec of rotation measurement module turns over isFinally
Direction-finding device azimuth value be A1=(A '+A0) %360 °, ifThen think that measurement result is credible, instead
Needs remeasure；In the present invention, for formula A1=(A '+A0) %360 °, its implication represented as：A’+A0And divided by
The remainder obtained after 360；In each formula below, the implication of symbol % is to carry out taking the remainder calculating.
Anglec of rotation measurement module checks the measurement result of inclination angle measurement module, refers specifically to：
The roll angle angle that the direction-finding device recorded by anglec of rotation measurement module turns over isFinally
Direction-finding device roll angle numerical value be R1=(R '+R0) %360 °, ifThen think that inclination angle measurement module is surveyed
The roll angle credible result measured, on the contrary need to remeasure；
The pitch angle angle that the direction-finding device recorded by anglec of rotation measurement module turns over isFinally
Direction-finding device pitch angle numerical value be P1=(P '+P0) %360 °, ifThen think inclination angle measurement module measurement
The pitch angle credible result arrived, on the contrary need to remeasure.
In addition, direction finding circuit board provided by the invention is run using low-power consumption mode, it is specially：
Configure the initial parameter of direction-finding device, including delay time, sampling interval, sampling length；According to the delay of setting
Time configurable clock generator module, then processor preserve each buffer status, into sleep mode；
Subsequent clock module enters operating mode, after reaching time delay, clock module output electric signal wake-up processing
Device, processor control the output valve of each measurement module of corresponding analog-digital converter collection after starting,
And the measured value of each measurement module is saved in memory；Then processor configures again according to the sampling interval
Clock module, CPU preserves each buffer status, into sleep mode；Subsequent clock module enters operating mode, it will sampled
Interval exports electric signal after reaching and wakes up processor, processor is and so on circulated into working status ..., until circulation
After number reaches the sampling length of setting, processor enters sleep mode, does not continue to perform gathered data and configurable clock generator mould
The task of block, terminates DATA REASONING operation.Since the underground survey time is usually longer, by using above-mentioned low power operation mould
Block, not only saves the energy, but also extends the working time of direction-finding device, more can adapt to underground work demand.
It is existing to measure when measuring deep hole crustal stress in particular by hydraulic fracturing during geostress survey
Journey is cumbersome, and direction-finding device needs to enter deep hole by cable car or the drilling rod to continue, disregards time of measuring, is only simply placed in sometimes
Tens hours are just needed with the time of extraction device；It can be seen from the above that if one-shot measurement fails, it will causes the huge time
And monetary loss.And in the present invention, magnetic survey module, inclination angle measurement module and anglec of rotation measurement module are integrated into a system
In one direction-finding device so that direction-finding device can be adapted for various working, improves crack in geostress survey work and orients
Work efficiency and measurement result accuracy, solve in geostress survey that crack oriented program is cumbersome, what equipment fell behind asks
Topic, specifically has the following advantages：
(1) orientation works of geostress survey can be carried out in upright opening, lateral aperture and inclined hole at the same time, are particularly suitable for
In the work that geostress survey is carried out using hydraulic fracturing, have the advantages that have a wide range of application；
(2) direction-finding device has compact, the advantages of carrying easy to field；
(3) three kinds of direction-finding devices that can work independently built in direction-finding device, are respectively magnetic survey module, inclination angle measurement mould
Block and anglec of rotation measurement module, also, the measurement result of each measurement module can be checked mutually, improve the precision and dress of direction finding
The reliability put；
(4) due to introducing anglec of rotation measurement module so that direction-finding device can have iron ore or other magnetic interferences
Reliably working in the environment of source, improves the environmental suitability of direction-finding device；
(5) the direction finding circuit board of direction-finding device is low-power consumption mode, can effectively reduce the power consumption of direction-finding device, extends electricity
The pond working time, meets the needs of long-time work.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
Depending on protection scope of the present invention.
Claims (7)
- A kind of 1. direction-finding method of direction-finding device for geostress survey, it is characterised in that the direction finding for geostress survey Device independently measures direction-finding device, including the first Measurement channel, the second Measurement channel, the 3rd Measurement channel, processing for triple channel Device, memory, clock module and power module；The processor is logical with first Measurement channel, second measurement respectively Road, the 3rd Measurement channel, the memory, the clock module and the power module are electrically connected；Wherein, first Measurement channel includes magnetic survey module, the first signal conditioning circuit and the first modulus turn of series connection Parallel operation；Second Measurement channel includes inclination angle measurement module, secondary signal modulate circuit and the second analog-digital converter of series connection；3rd Measurement channel includes anglec of rotation measurement module, the 3rd signal conditioning circuit and the 3rd analog-to-digital conversion of series connection Device；First Measurement channel, second Measurement channel, the 3rd Measurement channel, the processor, the memory, The clock module and the power module are integrated into a direction finding circuit board；The direction-finding device further includes copper pipe；The direction finding circuit board is placed in the inner wall of the copper pipe, and is fixed with the copper pipe Connection；Alternatively, the direction finding circuit board is fixed on fender bracket, then the fender bracket for being fixed with the direction finding circuit board is fixed Onto the copper pipe inner wall；Direction-finding method comprises the following steps：S1, before measurement, assembles to obtain direction-finding device on ground；S2, initial parameter configuration is carried out to the direction-finding device；S3, for the obtained direction-finding devices of S1, after direction finding circuit board is fixed on the copper pipe inner wall, in copper pipe Both ends are installed by waterproof seal；S4, the direction-finding device that S3 is obtained are installed to the bottom of stamp device, then will be provided with the stamp device of the direction-finding device Underground fracture section position is sent into, by stamp device pressurized expansion, after keeping the bulbs of pressure of certain time, crack will be on stamp device Mark is left, the direction-finding device carries out direction finding work, is specially：When carrying out upright opening geostress survey, start the first Measurement channel, surveyed at different moments by magnetic survey module record To device axis horizontal plane projection magnetic azinuth and store into memory；When carrying out lateral aperture geostress survey, start the second Measurement channel, surveyed at different moments by inclination angle measurement module record To device along the rotating angle, that is, roll angle of own axes, and, record the folder of direction-finding device axis and horizontal plane at different moments Angle, that is, pitch angle；Then by roll angle and pitch angle storage into memory；When carrying out inclined hole geostress survey, the first Measurement channel of combined launch and the second Measurement channel, use magnetic survey mould Block record magnetic direction angle at different moments, and, using the roll angle and pitch angle of inclination angle measurement module record at different moments, Then by the storage of magnetic direction angle, roll angle and pitch angle into memory；S5, after being measured, takes out the direction-finding device, the data measured by each Measurement channel is read from the memory, By analyzing data, the fracturing fracture produced to hydraulic fracturing is oriented, and is specially：When carrying out upright opening geostress survey, each moment of the magnetic survey module record is read from the memory Magnetic azinuth, so as to extrapolate the magnetic azinuth of the fracturing fracture of hydraulic fracturing generation；When carrying out lateral aperture geostress survey, each moment of the inclination angle measurement module record is read from the memory Roll angle and pitch angle, so that the angle that the direction for extrapolating the fracturing fracture of hydraulic fracturing generation is produced with ground level；When carrying out inclined hole geostress survey, the ground at each moment of the magnetic survey module record is read from the memory Magnetic azimuth, and, the roll angle and pitch angle at each moment of inclination angle measurement module record are read, so as to calculate water outlet pressure The angle that the fracturing fracture direction that fracturing method produces is produced with earth magnetism field direction, and fracturing fracture direction and ground level generation Angle, also extrapolates the axis of inclined hole and the angle of ground level.
- 2. direction-finding method according to claim 1, it is characterised in that further include：When carrying out upright opening geostress survey, while the first Measurement channel is started, also start the 3rd Measurement channel, pass through Anglec of rotation measurement module records the real-time attitude information of direction-finding device, the information magnetic survey over the ground recorded by anglec of rotation measurement module The information of amount module record is checked；When carrying out lateral aperture geostress survey, while the second Measurement channel is started, also start the 3rd Measurement channel, pass through Anglec of rotation measurement module records the real-time attitude information of direction-finding device, and inclination angle is surveyed by the information that anglec of rotation measurement module records The information of amount module record is checked；When carrying out inclined hole geostress survey, while the first Measurement channel and the second Measurement channel is started, also start the 3rd Measurement channel, the real-time attitude information of direction-finding device is recorded by anglec of rotation measurement module, is recorded by anglec of rotation measurement module The information that is recorded to magnetic survey module of information and the information of inclination angle measurement module record check.
- 3. direction-finding method according to claim 2, it is characterised in that the anglec of rotation measurement module is to the magnetic survey Module and/or the measurement result of inclination angle measurement module are checked, and used review method is specially：It is located at before direction-finding device and stamp device will being sent into underground fracture section position, in the processing of well head control direction-finding device Device removes the attitude information obtained by anglec of rotation measurement module measurement, then records the current magnetic azinuth of direction-finding device A0, roll angle R0With pitch angle P0, current time is denoted as T0；When direction-finding device and stamp device are put into underground fracture section position, underground fracture Fracture orientation is completed according to routine operation Work, meanwhile, anglec of rotation measurement module records the real time rotation Azimuth, Speed, Altitude V at each momentA(t), angular velocity in roll VR(t) and Rate of pitch VP(t)；Anglec of rotation measurement module checks the measurement result of magnetic survey module, refers specifically to：If the stamp moment is T1, the azimuth of moment magnetic survey module record is A2, the roll angle of inclination angle measurement module record For R2, pitch angle P2；The azimuth angle that the direction-finding device recorded by anglec of rotation measurement module turns over isFinal survey It is A to tool face azimuth numerical value1=(A '+A0) %360 °, ifThen think that measurement result is credible, otherwise need Remeasure；Wherein, for formula A1=(A '+A0) %360 °, its implication represented as：A’+A0And divided by 360 after The remainder arrived；Anglec of rotation measurement module checks the measurement result of inclination angle measurement module, refers specifically to：The roll angle angle that the direction-finding device recorded by anglec of rotation measurement module turns over isFinal survey It is R to device roll angle numerical value1=(R '+R0) %360 °, ifThen think what inclination angle measurement module measured Roll angle credible result, on the contrary need to remeasure；Wherein, for formula R1=(R '+R0) %360 °, its implication represented as： R’+R0And divided by 360 after obtained remainder；The pitch angle angle that the direction-finding device recorded by anglec of rotation measurement module turns over isFinal survey It is P to device pitch angle numerical value1=(P '+P0) %360 °, ifThen think what inclination angle measurement module measured Pitch angle credible result, on the contrary need to remeasure；Wherein, for formula P1=(P '+P0) %360 °, its implication represented as： P’+P0And divided by 360 after obtained remainder.
- 4. direction-finding method according to claim 1, it is characterised in that in S2, the initial parameter of the direction-finding device is configured, Including time delay, sampling interval, sampling length；According to the time delay configurable clock generator module of setting, then processor preservation Each buffer status, into sleep mode；Subsequent clock module enters operating mode, and after reaching time delay, clock module output electric signal wakes up processor, place Reason device controls corresponding analog-digital converter to gather the output valve of each measurement module after starting, and by the measurement of each measurement module Value is saved in memory；Then according to the sampling interval, configurable clock generator module, CPU preserve each buffer status to processor again, Into sleep mode；Subsequent clock module enters operating mode, it will export electric signal wake-up processing after being reached in the sampling interval Device, makes processor and so on be circulated into working status ..., until after cycle-index reaches the sampling length of setting, processing Device enters sleep mode, terminates DATA REASONING operation.
- 5. direction-finding method according to claim 1, it is characterised in that vertical for being carried out in the environment of magnetic interference source When hole, lateral aperture or inclined hole geostress survey, the output valve of anglec of rotation measurement module replaces magnetic survey module to complete test work Make.
- 6. direction-finding method according to claim 5, it is characterised in that the magnetic interference source is iron ore.
- 7. direction-finding method according to claim 1, it is characterised in that the magnetic survey module includes mutually perpendicular X To geomagnetic sensor, Y-direction geomagnetic sensor and Z-direction geomagnetic sensor；The inclination angle measurement module includes mutually perpendicular X to acceleration transducer, Y-direction acceleration transducer and Z-direction acceleration Sensor；The anglec of rotation measurement module includes mutually perpendicular X to gyroscope, Y-direction gyroscope and Z-direction gyroscope；The processor is used for according to the magnetic survey module, the inclination angle measurement module and the anglec of rotation measurement module Measurement result, calculates magnetic direction and the inclination angle in pressure break crack；The memory is used for magnetic direction and the inclination angle for storing each set period of time pressure break crack；The clock module is used to control the processor dormancy or wake-up；The power module includes the battery and voltage conversion chip of series connection, by the voltage conversion chip, to the processing Device provides the electric energy of adaptation.
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| CN110313973B (en) * | 2019-07-05 | 2020-04-28 | 北京积水潭医院 | Angle Measurement System and Data Processing Method for Rotational Osteotomy of Long Bone |
| CN117189092B (en) * | 2023-08-16 | 2024-04-09 | 中国矿业大学 | Soft rock ground stress testing method based on drilling cuttings particle size distribution |
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