CN104234698B - Laser-type angular difference measurement device and laser-type angular difference measurement method - Google Patents
Laser-type angular difference measurement device and laser-type angular difference measurement method Download PDFInfo
- Publication number
- CN104234698B CN104234698B CN201410341561.8A CN201410341561A CN104234698B CN 104234698 B CN104234698 B CN 104234698B CN 201410341561 A CN201410341561 A CN 201410341561A CN 104234698 B CN104234698 B CN 104234698B
- Authority
- CN
- China
- Prior art keywords
- laser
- angular difference
- circuit
- inductor
- cpu
- 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.)
- Active
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a laser-type angular difference measurement device and a laser-type angular difference measurement method, which are used for solving the problem that a measurement error is easy to generate by adopting an angular difference measurement tool for a drilling rig used for a directional well and a horizontal well. By adopting a laser transmitter and a laser induction dial provided with a multichannel signal acquisition device, an induced laser angle can be collected; according to the law that left is 'plus' and right is 'minus', the reading of angular difference is directly read, and speech report of the angular different is performed, and therefore the accuracy of angular difference measurement is effectively improved, the problem that the measurement error is big or the mistake is easy to generate due to human factors is avoided, and the construction precision during the construction process of the directional well is advantageously improved.
Description
Technical field
The invention belongs to angular difference field of measuring technique in oil drilling, it is related to the drilling tool that a kind of directional well is used with horizontal well
Angular difference measuring tool is and in particular to be a kind of laser type angular difference measurement apparatus and measuring method.
Background technology
In Process of Oil Well Drilling, the drilling technology such as directional well, horizontal well has a wide range of applications in petroleum industry field
Prospect, it has also become one of development trend of World Oil Industry.One of its key technology is must accurately to realize well track
Control.Drilling measuring technology is widely applied in directional well, horizontal well etc. as the instrument of real-time monitoring well track.
In actual drilling process, due to the measurement zero point of measurement while drilling mwd system and the zero point of mud motor
Can not be completely superposed, be usually present certain differential seat angle it is therefore desirable to measurement angular difference is shaft bottom MWD instrument inner orientation sensor
Measurement zero point and power drilling tool bent sub orientation difference, to calibrate the measured value of actual bit orientation, tool-face.Normal at present
Method has：(1) dangled by weight, measure angular difference, its principle is to hang in no magnetcisuspension to fix a mark at groove, so
Lifting drilling tool is until at power drilling tool groove, then estimating no magnetcisuspension and hang position at power drilling tool circumference for the mark and do afterwards
Labelling, measures this labelling and arrives circumferential length at power drilling tool groove and power drilling tool girth herein clockwise, finally by meter
Calculate the tool-face angular difference drawing MWD.(2) by way of gun sight, observe angular difference.In Application No. 201210036264.3
State's patent, discloses a kind of oil drilling instrument tool face angle difference measuring tool, aims at instrument including tabular, tubulose aims at instrument
And gun sight.(3) angular difference is measured by laser instrument.The Chinese patent of Application No. 201120186766.5, discloses a kind of MWD
Outer angular difference drilling tool protractor, fixedly mounts light source vertically downward on MWD short circuit, is installed with and light source phase on drilling tool
Corresponding angle scale, angled scale on angle scale, by the number of degrees on light source reading angular disk.(4) compass measurement angle
Difference.The Chinese patent of Application No. 201220550104.6, discloses a kind of drilling tool angular difference measuring instrument, including main detector and auxiliary
Help detector, transmit data to the receiver specified using digital compass measurement angular difference and with wireless data module.More than
Several inventions all improve the precision of angular difference measurement to a certain extent, but existing problems are, in the mode of aiming, angular difference
Calculating need to manually calculate, and the mode of compass adjusts orientation difficulty at the scene, and adopts in the light source mode of laser instrument, graduated disc
Need artificial rotation process, because drill string is not fixed, single measurement has certain error, and wastes time and energy, and efficiency is low, all less than real
The automatic measurement function of existing angular difference.
Content of the invention
The invention aims to solve with having bored directional well, artificial in drilling tool angular difference measuring tool that horizontal well uses
The problem that factor measurement is easy to error, there is provided one kind is used for the measurement-while-drilling system such as directional well, horizontal well, multilateral well
With drilling tool angular difference measurement laser type angular difference measurement apparatus and measuring method, by adopt generating laser and laser inductor with
And signal processing method, realize the intelligent measure of diagonal difference, improve the precision of angular difference measurement, it is to avoid anthropic factor measurement is by mistake
The larger or error-prone problem of difference.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of laser type angular difference measurement apparatus, the top rod including non magnetic drill collar and bottom drilling rod, be arranged on top bore
Generating laser on bar and be arranged on the laser pickoff on the drilling rod of bottom；It is provided with laser pickoff with laser sense
Answer device, and for processing the laser treatment circuit of the optical signal that laser inductor collects, the signal output part of laser inductor
It is connected with the signal input part of laser treatment circuit；Laser treatment circuit is used for conversion output drilling tool angular difference.
Described generating laser is identical with the structure of laser pickoff, all includes two and is fastened on top rod vertically
Or the mounting disc on the drilling rod of bottom；One end of two mounting discs is hinged by hinge；The other end setting handle of two mounting discs, and
Fastened by bolt；It is fastened in the mounting disc of top rod and is provided with laser instrument, and the position of laser instrument is bored with top
Mwd system zero point on bar aligns；It is provided with laser induced graduated disc in the mounting disc being fastened on bottom drilling rod, and laser sense
Graduated disc on ° position is answered to be aligned with drilling tool zero point.
It is relatively set with two laser instrument in the described mounting disc being fastened on top rod.
Graduated disc is arranged with described top rod, graduated disc is placed in the mounting disc of generating laser, and scale
0 ° of position and the mwd system zero point of disk align.
Laser inductor on described laser induced graduated disc is several photoelectrical couplers being circumferentially evenly arranged, often
Individual photoelectrical coupler is corresponding with the scale on graduated disc respectively.
Described laser treatment circuit includes multidiameter option switch, amplifying circuit, filter circuit, A/D converter, CPU, use
In display in real time the display circuit of the angular difference value of measurement, for real-time broadcasting measurement angular difference value voice broadcast modular circuit with
And be the power supply that whole laser treatment circuit and generating laser are powered；The outfan of laser inductor is connected respectively to multichannel choosing
Select on the input of switch, the outfan of multidiameter option switch is connected on the input of amplifying circuit, the output of amplifying circuit
End is connected on the input of filter circuit, and the outfan of filter circuit is connected on the input of A/D converter, and A/D changes
The outfan of device is connected on the signal input part of CPU, the signal input part of CPU respectively with display circuit and voice broadcast module
The input of circuit is connected.
The signal output part of described CPU is also by the ground receiver case phase of RS232, RS485 or CAN and mwd system
Even；CPU adopts single-chip microcomputer, DSP or ARM；Power supply adopts battery or set of cells；Laser inductor be can inspection type laser induced
Device, the port number of its signal is 1～N road signal, 1≤N≤1080；It is provided with laser amplifier, laser amplifier in amplifying circuit
The amplification of device is 1～10000；It is provided with band filter in filter circuit, the frequency band of band filter is 0.1～
6000Hz.
A kind of laser type angular difference measuring method, comprises the following steps：
1) generating laser is installed
By the zero graduation mark on generating laser, by the zero graduation line pair of laser instrument and the mwd system of top rod
Together, keep generating laser level, with bolt, mounting disc is fastened with top rod；
2) laser pickoff is installed
Lifting drill string is so that be located at pithead position at power drilling tool groove；Laser pickoff is installed, rotates laser pick-off
Device so that the zero graduation line of laser pickoff is alignd with the zero graduation line of drilling tool, with bolt by mounting disc and bottom drilling rod
Fastening；Finally, laser treatment circuit is connected with the outfan of laser pickoff, and by display circuit, voice broadcast module
And the ground control box of mwd system is all connected on the outfan of CPU in laser treatment circuit；
3) measure angular difference
Turn on the power, angular difference value is read by display circuit or voice broadcast module, that is, obtains the tool-face angular difference of MWD.
When the clockwise direction of the mark in bottom drilling rod for the mark of top rod, angular difference take on the occasion of；Conversely, counterclockwise
Direction, angular difference takes negative value.
When being measured using two laser instrument, CPU can carry out average value processing to two signals collecting, i.e. X=
(X1+X2)/2, wherein, X is angular difference calibration value, the corresponding angular difference value of a laser instrument that X1 collects for laser inductor, X2
Another laser instrument corresponding angular difference value collecting for laser inductor.
Compared with prior art, the invention has the advantages that：
The present invention passes through to install generating laser and laser pickoff on non magnetic drill collar, and by laser treatment circuit
Reason and output angle difference, solve directional well, horizontal well use drilling tool angular difference measuring tool in anthropic factor measurement be easy to
The problem of existing error.Can be collected with the laser induced graduated disc being provided with multiplexed signal sampling using generating laser and sense
Laser angle, according to the rule of left " just " right side " bearing ", the directly reading of reading angular difference, and carry out voice reporting and go out angular difference, effectively
Improve the precision of angular difference measurement, it is to avoid anthropic factor measurement error larger or error-prone problem, be conducive to improving
The precision of construction in directional well work progress.
Further, the present invention adopts laser treatment circuit, is sent the generating laser on top using photodetector
Faint laser signal be converted into the signal of telecommunication.The present invention selects have compared with good directionality, good beam quality, the swashing of working stability
Light device as transmitting lasing light emitter, by design low noise, high performance multi-center selection switch, the filter circuit of low noise with front
Put amplifier circuit, realize the reception to laser signal, because each laser pickoff corresponds to corresponding acquisition channel, be furnished with
Numbering, it is possible to use CPU automatically identifies the scale of graduated disc, simplifies live manual operation factor.
Further, CPU of the present invention adopts single-chip microcomputer, DSP or ARM, and coordinates speech chip and the display chip can be real
When display and grasp measured value, it is to avoid craft is calculated angular difference using tape measure, and other adopt light source to estimate angle
The error brought of difference.
Further, the present invention adopts faint photoelectrical coupler to detect weak laser signal, due to being provided with swashing of multichannel
Optical inductor, the therefore present invention adopt multidiameter option switch, need to patrol and examine every time only 1～N road signal, the value of N can 1～
Between 360, it is to avoid the complexity of the hardware of device, measured value is realized by comparison, process, calibration algorithm, energy
Enough easily, the parameter of online modification algorithm, improves the capacity of resisting disturbance of angular difference measurement apparatus.
Brief description
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the structural representation of generating laser of the present invention；
Fig. 3 is the structural representation of graduated disc of the present invention；
Fig. 4 is the schematic diagram of laser treatment circuit of the present invention.
Wherein, 1 is top rod；2 is bottom drilling rod；3 is generating laser；4 is laser pickoff；5 is hinge；6 are
Handle；7 is bolt；8 is laser instrument；9 is mwd system zero point；10 is drilling tool zero point.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention will be further described in detail：
Referring to Fig. 1 to Fig. 4, laser type angular difference measurement apparatus of the present invention, the top rod 1 including non magnetic drill collar and bottom brill
Bar 2, the generating laser 3 being arranged on top rod 1 and be arranged on the laser pickoff 4 on bottom drilling rod 2；Laser pick-off
It is provided with laser inductor in device 4, and for processing the laser treatment circuit of the optical signal that laser inductor collects, swash
The signal output part of optical inductor is connected with the signal input part of laser treatment circuit, and laser inductor is can inspection type laser sense
Answer device, the port number of its signal is 1～N road signal, 1≤N≤1080；Laser treatment circuit is used for conversion output drilling tool angular difference.
Graduated disc is arranged with top rod 1, graduated disc is placed in the mounting disc of generating laser 3, and 0 ° of position of graduated disc with
Mwd system 0. 9 aligns.Laser inductor on laser induced graduated disc is several light thermocouple being circumferentially evenly arranged
Clutch, each photoelectrical coupler is corresponding with the scale on graduated disc respectively.
Generating laser 3 is identical with the structure of laser pickoff 4, all include two be fastened on vertically top rod 1 or
Mounting disc on bottom drilling rod 2；One end of two mounting discs is hinged by hinge 5；The other end setting handle 6 of two mounting discs,
And fastened by bolt 7；Laser instrument 8 is provided with the mounting disc being fastened on top rod 1, and the position of laser instrument 8 with
Mwd system 0. 9 on top rod 1 aligns；Laser induced scale is provided with the mounting disc being fastened on bottom drilling rod 2
On disk, and laser induced graduated disc, 0 ° of position is aligned with drilling tool 0. 10.It is oppositely arranged in the mounting disc being fastened on top rod 1
There are two laser instrument.
As shown in figure 4, laser treatment circuit include multidiameter option switch, amplifying circuit, filter circuit, A/D converter,
CPU, the voice broadcast module for showing the display circuit of angular difference value measuring in real time, the angular difference value measuring for real-time broadcasting
Circuit and the power supply for whole laser treatment circuit and generating laser 3 power supply；The signal output part of CPU also by RS232,
RS485 or CAN are connected with the ground receiver case of mwd system；CPU adopts single-chip microcomputer, DSP or ARM；Power supply adopt battery or
Set of cells.The outfan of laser inductor is connected respectively on the input of multidiameter option switch, the output of multidiameter option switch
End is connected on the input of amplifying circuit, and the outfan of amplifying circuit is connected on the input of filter circuit, filter circuit
Outfan be connected on the input of A/D converter, the outfan of A/D converter is connected on the signal input part of CPU,
The signal input part of CPU is connected with the input of display circuit and voice broadcast modular circuit respectively.Wherein, set in amplifying circuit
It is equipped with laser amplifier, the amplification of laser amplifier is 1～10000；It is provided with band filter, band logical in filter circuit
The frequency band of wave filter is 0.1～6000Hz.
Laser type angular difference measuring method of the present invention, comprises the following steps：
1) generating laser is installed
By the zero graduation mark on generating laser, by the zero graduation line pair of laser instrument and the mwd system of top rod
Together, keep generating laser level, with bolt, mounting disc is fastened with top rod；
2) laser pickoff is installed
Lifting drill string is so that be located at pithead position at power drilling tool groove；Laser pickoff is installed, rotates laser pick-off
Device so that the zero graduation line of laser pickoff is alignd with the zero graduation line of drilling tool, with bolt by mounting disc and bottom drilling rod
Fastening；Finally, laser treatment circuit is connected with the outfan of laser pickoff, and by display circuit, voice broadcast module
And the ground control box of mwd system is all connected on the outfan of CPU in laser treatment circuit；
3) measure angular difference
Turn on the power, angular difference value is read by display circuit or voice broadcast module, that is, obtains the tool-face angular difference of MWD.
When the clockwise direction of the mark in bottom drilling rod for the mark of top rod, angular difference take on the occasion of；Conversely, counterclockwise, angle
Difference takes negative value.When being measured using two laser instrument, CPU can carry out average value processing to two signals collecting, i.e. X=
(X1+X2)/2, wherein, X is angular difference calibration value, X1The corresponding angular difference value of a laser instrument collecting for laser inductor, X2For
Another laser instrument corresponding angular difference value that laser inductor collects.
The principle of the present invention：
Laser type angular difference measurement apparatus of the present invention are by laser instrument, generating laser, laser pickoff, laser induced scale
The modules such as disk, single-chip microcomputer, laser treatment circuit, angular difference show, the voice broadcast module of angular difference and power module composition.The present invention
It is applied to the angular difference measurement that the directional orientation tools such as directional well, horizontal well, extended reach well measure drilling tool and MWD.
Wherein, laser instrument mainly produces transmitting lasing light emitter, and selecting party tropism is good, good beam quality, the laser of working stability
Device conduct, emitting laser；
The generating laser on top, is mainly used to fixed laser, and identifies the zero point of measurement while drilling mwd system；Laser
Emitter is made up of handle, bolt, laser instrument, graduated disc, hinge etc.；So that laser alignment measurement while drilling during installation
Mwd system zero point, whole emitter is arranged on top rod, laser works, launches laser；
The laser pickoff of bottom, is mainly used to fixed laser receiving circuit, and senses laser, the zero point of mark drilling tool；
Laser pickoff is made up of handle, bolt, laser induced circuit, graduated disc, hinge and laser pick-off process circuit etc.；
Wherein, laser inductor, around 360 degree of installations of drill string, is numbered to each laser inductor, and it is corresponding to identify each induction apparatus
Scale；Laser induced graduated disc is mainly mark drilling tool zero point and trepan bar or drill collar 360 ° of angles of a week.
The laser treatment circuit of microcontroller mainly includes：Multi-way switch circuit, amplifying circuit, filter circuit, A/D turn
Parallel operation, single-chip microcomputer, display circuit, voice broadcast module and power supply etc..After generating laser connects device installation with laser, peace
Make the zero point of the zero graduation be aligned drilling tool of laser induced disk during dress, start laser receiver system, then laser pick-off circuit reads and swashs
The scale of the light source corresponding to light intensity maximum, then now corresponding be exactly drilling tool and measurement while drilling instrument angular difference；Angular difference
Liquid crystal display is used for showing real-time angular difference measured value.Angular difference voice broadcast module is used for the angular difference value of real-time broadcasting measurement.Electricity
Source is used for the power supply of whole system, using battery or set of cells.
The present invention has further the advantage that：
Laser emission and reception technique
Laser pick-off is the core of intelligent positioning angular difference measurement apparatus, by photodetector, multidiameter option switch, front storing
The big composition such as device, wave filter, cpu circuit, its major function is to be sent the generating laser on top using photodetector
Faint laser signal is converted into the signal of telecommunication.The present invention selects to be had compared with good directionality, good beam quality, the laser of working stability
Device as emitting laser, by designing low noise, high performance multi-center selection switch, the filtering of low noise and preposition amplification
Device, realizes the reception to laser signal, because each laser pickoff corresponds to corresponding acquisition channel, is furnished with numbering, permissible
Automatically identify the scale of graduated disc using CPU, using laser receiving technology, live manual operation reason can be simplified, possess
Following advantage：
Angular difference measurement is intelligent；This device make use of CPU (single-chip microcomputer, DSP, ARM etc.), speech chip and the display chip can
Show and grasp measured value with real-time, it is to avoid craft is calculated angular difference using tape measure, and other adopt light source mesh
The error brought of angle measurement difference.
The mainly faint optical signal being received due to laser pickoff, the present invention adopts faint photoelectrical coupler detection faint
Laser signal, due to being provided with the laser inductor of multichannel, therefore present invention employs multidiameter option switch, only need to patrol and examine every time
1～N road signal, the value of N can be between 1～360, it is to avoid the complexity of the hardware of device, and measured value passes through software ratio
Relatively, process, calibration algorithm realizing, so can easily, the parameter of online modification algorithm, improve angular difference measurement apparatus
Capacity of resisting disturbance.
Top generating laser device is by handle, bolt, generating laser A, generating laser B, hinge, positioning spiral shell
Bolt and graduated disc are constituted.Its middle and upper part generating laser device is as shown in Fig. 2 graduated disc is as shown in Figure 3.
Double light source checking the calibration technology
Intelligent Laser formula angular difference measurement apparatus are launched using double light sources and are measured, and so can be effectively prevented from angular difference
Measuring instrument alignment error, the alignment error such as causing because weather, light, drilling tool are unclean etc..Assume the corresponding angular difference of laser instrument A
Measured value after conversion is X1, measured value after conversion for the corresponding angular difference of laser instrument B is X2, in surface of drill stem cleaning, light
Sliding, installation level is high or ideally, the measured value X of angular difference1With X2Equal.In actual drilling process, power drilling tool
Abrasion or the aging external diameter that can cause drilling tool changes, or surface of drill stem clean, smooth high when may cause alignment error, can
Can occur that angular difference measured value is different, generally, X1With X2Difference very little.In order to improve the certainty of measurement of angular difference, the present invention
Measurement error can be effectively reduced using double light source measurements, from actual alignment value XSchool=(X1+X2)/2, as actual angle
Aberration measurements.
Intelligent Laser measurement angular difference shows and voice broadcast building block technique
It is an advantage of the present invention that measured angular difference value is after installing measurement apparatus, by a set of strict journey
Sequence is processed by microcontroller calculating, and informs angular difference measured value using display screen and voice broadcast module device simultaneously, this measurement
Value can also be transferred to the ground receiver case of mwd system by RS232, RS485, CAN or other bussing techniques, has mwd system
Directly read angular difference initial value, automatically calibrated.
Laser type angular difference measuring method of the present invention, for the measurement-while-drilling systems such as directional well, horizontal well, multilateral well and brill
The measurement of tool angular difference.Intelligent Laser drilling tool angular difference measurement apparatus by laser instrument, top generating laser, bottom laser pickoff,
The modules such as laser induced graduated disc, single-chip microcomputer laser treatment circuit, angular difference show, the voice broadcast module of angular difference and power module
Composition.Specific operational approach is as follows：
Prepare：Check scale graduated disc, laser works state, and ground carries out Intelligent Laser drilling tool angular difference measure analog
Test, errorless after, clean surface of drill stem；
First, first by the zero graduation mark on the generating laser of top, zero quarter of generating laser A and non magnetic drill collar
Degree line alignment, keeps top generating laser level, using fixing bolt by its be fixed on no on magnetcisuspension drill collar；Open electricity
Source,
Secondly, lifting drill string is so that be located at well head correct position at power drilling tool groove；Laser pick-off dress in bottom is installed
Put, rotate reception device so that the zero graduation line of the zero graduation line alignment drilling tool of reception device, consolidated using fixing bolt
Fixed；During the clockwise direction of the mark in bottom drilling rod for the mark of top rod, angular difference take on the occasion of；Conversely, counterclockwise, angle
Difference takes negative value.
Finally, turn on the power, observe the angular difference reading on display screen, or the angular difference reading of hearing voice broadcasting module, should
Angle is the tool-face angular difference of MWD.
After non magnetic drill collar of the present invention completes to be connected on rig floor with skew-swept airfoil, measure zero in the orientation sensor of non magnetic drill collar
Install laser instrument on point, then laser induced graduated disc is installed on drilling tool, the zero point of graduated disc points to the zero point of drilling tool, so
When laser works, the laser induced graduated disc being provided with multiplexed signal sampling can collect the laser angle sensing,
According to the rule of left " just " right side " bear ", the directly reading of reading angular difference, and carry out voice reporting and go out angular difference, can be effectively reduced calmly
To the error of BHA exterior angle difference measurements, be conducive to improving the precision of construction in directional well work progress, obtain even more ideal
Well track.
Above content technological thought only to illustrate the invention, it is impossible to limit protection scope of the present invention with this, every is pressed
According to technological thought proposed by the present invention, any change done on the basis of technical scheme, each fall within claims of the present invention
Protection domain within.
Claims (8)
1. a kind of laser type angular difference measurement apparatus it is characterised in that：Top rod (1) including non magnetic drill collar and bottom drilling rod
(2) generating laser (3) that, is arranged on top rod (1) and be arranged on the laser pickoff (4) on bottom drilling rod (2)；
Laser pickoff is provided with laser inductor in (4), and for processing the laser of the optical signal that laser inductor collects
Process circuit, the signal output part of laser inductor is connected with the signal input part of laser treatment circuit；Laser treatment circuit is used
In conversion output drilling tool angular difference；
Described generating laser (3) is identical with the structure of laser pickoff (4), all includes two and is fastened on top brill vertically
Mounting disc on bar (1) or bottom drilling rod (2)；One end of two mounting discs is hinged by hinge (5)；The other end of two mounting discs
Setting handle (6), and fastened by bolt (7)；Laser instrument (8) is provided with the mounting disc being fastened on top rod (1),
And the position of laser instrument (8) is aligned with the mwd system zero point (9) on top rod (1)；It is fastened on the peace of bottom drilling rod (2)
Laser induced graduated disc is provided with sabot, and on laser induced graduated disc, 0 ° of position is aligned with drilling tool zero point (10)；
Described laser treatment circuit includes multidiameter option switch, amplifying circuit, filter circuit, A/D converter, CPU, is used for showing
Show the display circuit of angular difference value of real-time measurement, be used for the voice broadcast modular circuit of angular difference value of real-time broadcasting measurement and be
The power supply that whole laser treatment circuit and generating laser (3) are powered；The outfan of laser inductor is connected respectively to multichannel choosing
Select on the input of switch, the outfan of multidiameter option switch is connected on the input of amplifying circuit, the output of amplifying circuit
End is connected on the input of filter circuit, and the outfan of filter circuit is connected on the input of A/D converter, and A/D changes
The outfan of device is connected on the signal input part of CPU, the signal output part of CPU respectively with display circuit and voice broadcast module
The input of circuit is connected.
2. laser type angular difference measurement apparatus according to claim 1 it is characterised in that：Described it is fastened on top rod (1)
Mounting disc on be relatively set with two laser instrument.
3. laser type angular difference measurement apparatus according to claim 1 and 2 it is characterised in that：On described top rod (1)
It is arranged with graduated disc, graduated disc is placed in the mounting disc of generating laser (3), and 0 ° of position of graduated disc and mwd system zero
Point (9) aligns.
4. laser type angular difference measurement apparatus according to claim 1 and 2 it is characterised in that：Described laser induced graduated disc
On laser inductor be several photoelectrical couplers being circumferentially evenly arranged, each photoelectrical coupler respectively with graduated disc on
Scale corresponding.
5. laser type angular difference measurement apparatus according to claim 1 it is characterised in that：The signal output part of described CPU is also
It is connected with the ground receiver case of mwd system by RS232, RS485 or CAN；CPU adopts single-chip microcomputer, DSP or ARM；Power supply
Using battery or set of cells；Laser inductor be can inspection type laser inductor, the port number of its signal is 1～N road signal, 1
≤N≤1080；It is provided with laser amplifier, the amplification of laser amplifier is 1～10000 in amplifying circuit；Filter circuit
In be provided with band filter, the frequency band of band filter is 0.1～6000Hz.
6. the angular difference measuring method of the laser type angular difference measurement apparatus described in a kind of employing claim 1 or 2 or 5, its feature exists
In comprising the following steps：
1) generating laser is installed
Zero graduation labelling on generating laser is alignd with the zero graduation line of the mwd system of top rod, keeps Laser emission
Mounting disc is fastened with top rod by device level with bolt；
2) laser pickoff is installed
Lifting drill string is so that be located at pithead position at power drilling tool groove；Laser pickoff is installed, rotates laser pickoff, make
The zero graduation line obtaining laser pickoff is alignd with the zero graduation line of drilling tool, is fastened mounting disc with bottom drilling rod with bolt；
Finally, laser treatment circuit is connected with the outfan of laser pickoff, and by display circuit, voice broadcast module and
The ground control box of mwd system is all connected on the outfan of CPU in laser treatment circuit；
3) measure angular difference
Turn on the power, angular difference value is read by display circuit or voice broadcast module, that is, obtains the tool-face angular difference of MWD.
7. laser type angular difference measuring method according to claim 6 it is characterised in that：When the mark of top rod is in bottom
During the clockwise direction of the mark of drilling rod, angular difference take on the occasion of；Conversely, counterclockwise, angular difference takes negative value.
8. laser type angular difference measuring method according to claim 7 it is characterised in that：When being surveyed using two laser instrument
During amount, CPU can carry out average value processing to two signals collecting, i.e. X=(X1+X2)/2, wherein, X is angular difference calibration value, X1
The corresponding angular difference value of a laser instrument collecting for laser inductor, X2Another laser instrument collecting for laser inductor
Corresponding angular difference value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410341561.8A CN104234698B (en) | 2014-07-17 | 2014-07-17 | Laser-type angular difference measurement device and laser-type angular difference measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410341561.8A CN104234698B (en) | 2014-07-17 | 2014-07-17 | Laser-type angular difference measurement device and laser-type angular difference measurement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104234698A CN104234698A (en) | 2014-12-24 |
| CN104234698B true CN104234698B (en) | 2017-02-15 |
Family
ID=52223504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410341561.8A Active CN104234698B (en) | 2014-07-17 | 2014-07-17 | Laser-type angular difference measurement device and laser-type angular difference measurement method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104234698B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019173092A1 (en) * | 2018-03-05 | 2019-09-12 | Accu-Scribe LLC | Techniques for determining an angular offset between two objects |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10502561B2 (en) | 2010-04-08 | 2019-12-10 | Accu-Scribe LLC | Techniques for determining an angular offset between two objects |
| CN107916921B (en) * | 2017-12-27 | 2021-03-19 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Portable laser MWD (measurement while drilling) angle difference running rule and using method |
| CN108612520B (en) * | 2018-05-09 | 2020-06-26 | 中国地质大学（武汉） | Tool face angle sensor based on optical fiber principle |
| CN108592879B (en) * | 2018-05-31 | 2021-08-17 | 中冶东方工程技术有限公司 | Levelness measuring device and method for piston type walking parts |
| CN111305821A (en) * | 2020-03-27 | 2020-06-19 | 宏华油气工程技术服务（四川）有限公司 | Drilling directional angle difference measuring device and measuring method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6708782B1 (en) * | 2002-08-02 | 2004-03-23 | James Turney | Method and apparatus for axial alignment of a mud motor's adjustable housing relative to the orientation sub's internal sleeve in a drill string |
| CN101975063A (en) * | 2010-09-10 | 2011-02-16 | 中国矿业大学 | Laser guided positioning and orientation device and method of roadheader |
| CN201884022U (en) * | 2010-12-06 | 2011-06-29 | 中国石油集团西部钻探工程有限公司 | Portable angle difference measure gauge |
| CN202064934U (en) * | 2011-06-03 | 2011-12-07 | 新疆贝肯能源工程股份有限公司 | MWD (Measurement While Drilling) external angular difference drill protractor |
| CN202788804U (en) * | 2012-08-26 | 2013-03-13 | 中国石油化工股份有限公司 | Laser calibration device for measuring angle difference of directional well project |
| CN202970699U (en) * | 2012-11-07 | 2013-06-05 | 中国石油化工股份有限公司 | Laser type angular-difference measuring instrument |
-
2014
- 2014-07-17 CN CN201410341561.8A patent/CN104234698B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6708782B1 (en) * | 2002-08-02 | 2004-03-23 | James Turney | Method and apparatus for axial alignment of a mud motor's adjustable housing relative to the orientation sub's internal sleeve in a drill string |
| CN101975063A (en) * | 2010-09-10 | 2011-02-16 | 中国矿业大学 | Laser guided positioning and orientation device and method of roadheader |
| CN201884022U (en) * | 2010-12-06 | 2011-06-29 | 中国石油集团西部钻探工程有限公司 | Portable angle difference measure gauge |
| CN202064934U (en) * | 2011-06-03 | 2011-12-07 | 新疆贝肯能源工程股份有限公司 | MWD (Measurement While Drilling) external angular difference drill protractor |
| CN202788804U (en) * | 2012-08-26 | 2013-03-13 | 中国石油化工股份有限公司 | Laser calibration device for measuring angle difference of directional well project |
| CN202970699U (en) * | 2012-11-07 | 2013-06-05 | 中国石油化工股份有限公司 | Laser type angular-difference measuring instrument |
Non-Patent Citations (1)
| Title |
|---|
| 激光式MWD工具面角差测量仪设计;唐志文 等;《中国石油大学胜利学院学报》;20130615;第27卷(第2期);全文 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019173092A1 (en) * | 2018-03-05 | 2019-09-12 | Accu-Scribe LLC | Techniques for determining an angular offset between two objects |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104234698A (en) | 2014-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104234698B (en) | Laser-type angular difference measurement device and laser-type angular difference measurement method | |
| CN111379550B (en) | System for be used for monitoring dynamic parameter in pit | |
| CN100504296C (en) | Total station instrument combined orientation method based on optical fiber gyro | |
| CN102419196B (en) | Method for automatically drawing river water surface line by utilizing multiple remote control water level detection devices | |
| CN106568483A (en) | Turbine optical sensor and turbine optical flowmeter based on sensor | |
| CN103776529A (en) | Desktop laser power meter capable of real-time compensation and compensation method thereof | |
| CN103575705A (en) | Turbidity meter and measuring method for turbidity of water | |
| CN102238589A (en) | Wireless network communication base station antenna performance monitoring device | |
| CN105158205A (en) | Method and device for remotely measuring methane concentration by methane gas mass interface recognition and laser with adjustable measuring range | |
| CN102589351A (en) | Digitizing collection device and detection method based on antiaircraft gun operation parameter of weather modification | |
| CN104234697B (en) | Intelligent drilling angular difference measurement device and angular different measurement method | |
| CN105510230A (en) | System and method for automatically collimating measuring light path of transmission instrument based on scanning mode | |
| CN110967705A (en) | GPS range finder and measuring method thereof | |
| CN208042925U (en) | A kind of portable multi-function engineering management ruler | |
| CN103471817B (en) | A kind of Duo Chang space photometric distribution rapid measurement device and method | |
| CN102797457B (en) | A kind of device and method based on polarised light accurate Calculation well depth | |
| CN204626214U (en) | A kind of Benkleman beam deflectometer data collecting system | |
| CN104420827B (en) | For the measuring apparatus for the outer angular difference for measuring directed drilling drilling tool | |
| CN203772412U (en) | Desk type laser power meter capable of real-time compensation | |
| CN201713739U (en) | Laser 300m long-chord railway track measurement self-calibration device | |
| CN201555591U (en) | Direct-current sine-cosine azimuth indicator | |
| CN206601125U (en) | Transformer station's sedimentation monitoring system based on fibre-optical grating sensor network | |
| CN105245228A (en) | Signal collection control circuit | |
| CN202832504U (en) | Device of accurate calculation of well depth based on polarized light | |
| Chen et al. | Design of the Highly Integrated Indoor Environment Monitoring System with Dual Data Transmission Mode Based on the Interconnect of Things |
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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230414 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: XI'AN SHIYOU University Patentee after: Sinopec Petroleum Engineering Technology Research Institute Co.,Ltd. Address before: 710065, No. 18, two East, electronic road, Shaanxi, Xi'an Patentee before: XI'AN SHIYOU University |