CN106556871A - Cable center support system and method in well - Google Patents
Cable center support system and method in well Download PDFInfo
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- CN106556871A CN106556871A CN201510633870.7A CN201510633870A CN106556871A CN 106556871 A CN106556871 A CN 106556871A CN 201510633870 A CN201510633870 A CN 201510633870A CN 106556871 A CN106556871 A CN 106556871A
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- well head
- cable center
- plane coordinates
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Abstract
Disclose a kind of cable center support system and method in well.The system can include：Measuring unit, which includes multiple laser range finders and positioner, multiple laser range finders sight the well head center of the cable center of top sheave lower end and raised platform around a well, multiple laser range finders are obtained respectively relative to cable center and the azimuth relative to well head center, and multiple laser range finders are positioned by positioner, obtain the plane coordinates of multiple laser range finders；Main control unit, which is based on multiple laser range finders relative to cable center and the plane coordinates of the azimuth relative to well head center and multiple laser range finders, the difference between the plane coordinates and the plane coordinates at well head center of cable center is obtained, and the centering for centering unit movement being controlled to complete cable center and well head center is operated；And centering unit, which can move in the horizontal direction, to adjust the plan-position of the top sheave.
Description
Technical field
It relates to field of geophysical exploration, more particularly, to cable center support system in a kind of well
And method.
Background technology
In field of geophysical exploration, it is often necessary to detected using the method for seismic prospecting in well.Well
Middle method of seismic prospecting, is by excitaton source (such as air gun) or receiving device (such as three-component geophone)
It is placed in well, by exciting or receiving the method to obtain seismic wave.Fig. 1 shows the well of prior art
The schematic diagram of the raised platform around a well of middle seismic prospecting.As shown in figure 1, in practice, generally equipment in well is connected
To winch cable, and derrick or crane is relied on to hang, entering in deep-well under equipment.
Inventor has found, monitoring etc. in observation system in existing microseism well, cable and well head it is right
In be entirely to judge estimating the center of cable whether by being hanging to the equipment of well head by human eye
It is consistent with the center of well head, the degree of accuracy is relatively low.Equipment is put in well, but cable is in well
Rub on the bloom of mouth, cause cable and the situation of equipment damage to happen occasionally.Therefore, it is necessary to develop
Cable center support system and method in a kind of well that accurately can be aligned.
The information for being disclosed in disclosure background section is merely intended to deepen general background skill of this disclosure
The understanding of art, and be not construed as recognizing or implying in any form that the information structure has been this area skill
Prior art well known to art personnel.
The content of the invention
Present disclose provides cable center support system and method in a kind of well, which can realize the centre bit of cable
Put and be accurately aligned with the center of well head, so as to avoid the field construction on-site supervision of seismic prospecting in well
Uncertainty.
According to an aspect of this disclosure, it is proposed that cable center support system in a kind of well, the system can be wrapped
Include：Measuring unit, which includes multiple laser range finders and positioner, and multiple laser range finders sight day
The cable center of pulley lower end and the well head center of raised platform around a well, obtain multiple laser range finders respectively relative to electricity
Cable center and the azimuth relative to well head center, and multiple laser range finders are carried out by positioner
Positioning, obtains the plane coordinates of multiple laser range finders；Main control unit, which is based on multiple laser range finders
Sit relative to the plane of cable center and the azimuth relative to well head center and multiple laser range finders
Mark, obtain cable center plane coordinates and the plane coordinates at well head center between difference, and control it is right
Middle unit movement is operated with the centering for completing cable center and well head center；And centering unit, which can
Move in the horizontal direction, to adjust the plan-position of the top sheave.
According to another aspect of the present disclosure, it is proposed that cable centering method in a kind of well, the method can be wrapped
Include：Multiple laser range finders are adjusted to sight the cable center of top sheave lower end and the well head center of raised platform around a well,
Multiple laser range finders are obtained respectively relative to cable center and the azimuth relative to well head center；To many
Individual laser range finder is positioned, and obtains the plane coordinates of multiple laser range finders；Based on multiple Laser Measurings
Distance meter is relative to cable center and the plane of the azimuth relative to well head center and multiple laser range finders
Coordinate, obtains the difference between the plane coordinates and the plane coordinates at well head center of cable center；And base
Difference between the plane coordinates of cable center and the plane coordinates at well head center, carry out cable center and
The centering operation of well head center.
Disclosed method and device have other characteristics and advantage, and these characteristics and advantage are from being incorporated to this
Will be apparent in accompanying drawing and subsequent specific embodiment in text, or will be incorporated herein
Stated in accompanying drawing and subsequent specific embodiment in detail, these the drawings and specific embodiments are provided commonly for
Explain the certain principles of the disclosure.
Description of the drawings
Be described in more detail by combining accompanying drawing exemplary embodiment of this disclosure, the disclosure it is upper
State and other purposes, feature and advantage will be apparent from, wherein, in the exemplary reality of the disclosure
Apply in example, identical reference number typically represents same parts.
Fig. 1 shows the schematic diagram of the raised platform around a well of seismic prospecting in the well of prior art.
The schematic diagram of cable center support system in the well that Fig. 2 shows according to one embodiment of the disclosure.
The centering process of cable center support system in the well that Fig. 3 shows according to one embodiment of the disclosure
Schematic diagram.
Flow process in the well that Fig. 4 shows according to one embodiment of the disclosure the step of cable centering method
Figure.
Specific embodiment
Preferred embodiment of the present disclosure is more fully described below with reference to accompanying drawings.Although showing in accompanying drawing
Preferred embodiment of the present disclosure, however, it is to be appreciated that may be realized in various forms the disclosure and should not be by
Embodiments set forth here is limited.Conversely, thesing embodiments are provided so that the disclosure is more thorough
With it is complete, and the scope of the present disclosure can intactly be conveyed to those skilled in the art.
Embodiment 1
The schematic diagram of cable center support system in the well that Fig. 2 shows according to one embodiment of the disclosure.
In this embodiment, in the well according to the disclosure, cable center support system can include：Measuring unit
201st, main control unit 202 and centering unit 203.Measuring unit 201 can include multiple laser rangings
Instrument and positioner, multiple laser range finders are sighted in the cable center of top sheave lower end and the well head of raised platform around a well
The heart, obtains multiple laser range finders respectively relative to cable center and the azimuth relative to well head center,
And multiple laser range finders are positioned by positioner, the plane for obtaining multiple laser range finders is sat
Mark.Main control unit 202 can be based on multiple laser range finders relative to cable center and relative in well head
The azimuth of the heart and the plane coordinates of multiple laser range finders, obtain the plane coordinates and well of cable center
Difference between the plane coordinates at mouth center, and control centering unit movement to complete cable center and well head
The centering operation at center.Centering unit 203 can be moved in the horizontal direction, to adjust the top sheave
Plan-position.
The embodiment realizes electricity by measuring unit 201, main control unit 202 and centering unit 203
The center of cable and the center of well head are accurately aligned, so as to avoid the field of seismic prospecting in well
The uncertainty of job site monitoring.
In one example, measuring unit 201 can also include head, can install multiple sharp on head
Optar, and angle can be sighted by what head adjusted multiple laser range finders.
In one example, measuring unit 201 can also include protective cover, and which can protect multiple Laser Measurings
The camera lens of distance meter.
In one example, centering unit 203 can include：Adjusting rod, which can be in the horizontal direction
It is mobile；Motor, which can drive adjusting rod；And steelframe, its support adjusting rod.
In one example, multiple laser range finders can be three, you can to find range including first laser
Instrument, second laser rangefinder and the 3rd laser range finder.It is to be understood by those skilled in the art that this
The quantity of disclosed laser range finder is not limited to this, and can adopt any number of three or more than three
Amount.
The centering process of cable center support system in the well that Fig. 3 shows according to one embodiment of the disclosure
Schematic diagram.As shown in figure 3, can be on head apart from suspended cables certain distance (for example, 5 meters)
Three laser range finders are installed in position, wherein, first laser rangefinder, second laser rangefinder and the
Angle between any two of three laser range finders and the line of cable center is 120 degree.That is, first
Line between laser range finder, second laser rangefinder and the 3rd laser range finder can be equilateral three
It is angular, and cable center can be used as the center of equilateral triangle.
Below the centering process of cable center support system in the well according to the disclosure is specifically described.
In one example, the photograph that head adjusts multiple laser range finders can be controlled by main control unit 202
Quasi- angle, makes laser range finder sight the cable center of top sheave lower end and the well head center of raised platform around a well respectively.
To ensure when sighting well head center accurately, it is preferable that the camera lens of multiple laser range finders can be adopted
With vertical three camera lenses sighted.Generally, the diameter of exploratory well or development well is in 20 cms,
The well head center of the raised platform around a well of the disclosure can refer to that camera lens sighting wire "+" symbol sights the centre of the outer borehole wall, make
Borehole wall line is obtained with regard to the symmetrical position of "+".
Laser range finder can have angle measurement function, you can to measure relative to cable center and well head center
Azimuth.Preferably, the laser range finder with high precision angle-measuring function can be adopted, reading is accurate
To signa.
It is measured, it is possible to obtain first laser rangefinder, second laser rangefinder and the 3rd Laser Measuring
Azimuth angle alpha of the distance meter relative to cable center1、α2、α3, and relative to the azimuth at well head center
β1、β2、β3.Wherein, azimuth is referred to as azimuth angle (Azimuth angle, abbreviation
Az), it is to measure one of method of differential seat angle between object in the plane.Azimuth can refer to from certain what is put
North pointer direction line rises, according to the horizontal sextant angle between clockwise direction to target direction line.For example, azimuth
α1Can be north pointer direction line and first laser rangefinder relative between the horizontal line of cable center
Angle.
In one example, can be by positioner to first laser rangefinder, second laser rangefinder
And the 3rd laser range finder positioned, obtain first laser rangefinder, second laser rangefinder and
Plane coordinates (the x of the 3rd laser range finder1, y1)、(x2, y2) and (x3, y3).Wherein, positioning dress
It can be GPS location instrument to put.
In one example, can be based on first laser rangefinder and the plane coordinates of second laser rangefinder
(x1, y1)、(x2, y2), and relative to the azimuth angle alpha of cable center1、α2With relative in well head
The azimuthal angle beta of the heart1、β2, obtain the first cable center plane coordinates (X1, Y1) and the first well head in
Heart plane coordinates (M1, N1)。
Specifically, for cable center plan-position, found range based on first laser rangefinder and second laser
Instrument, can meet equation below：
Then can be drawn by formula (1)：
In the same manner, for well head center plane location, based on first laser rangefinder and second laser rangefinder,
Equation below can be met：
Then can be drawn by formula (3)：
As set forth above, it is possible to be based on formula (2) and (4), the first cable center plane coordinates (X is obtained1,
Y1) and the first well head central plane coordinate (M1, N1)。
Likewise it is possible to based on second laser rangefinder and the plane coordinates (x of the 3rd laser range finder2,
y2)、(x3, y3), and relative to the azimuth angle alpha of cable center2、α3With the side relative to well head center
Parallactic angle β2、β3, obtain the second cable center plane coordinates (X2, Y2) and the second well head central plane
Coordinate (M2, N2).Can be based on first laser rangefinder and the plane coordinates (x of the 3rd laser range finder1,
y1)、(x3, y3), and relative to the azimuth angle alpha of cable center1、α3With the side relative to well head center
Parallactic angle β1、β3, obtain the 3rd cable center plane coordinates (X3, Y3) and the 3rd well head central plane
Coordinate (M3, N3).That is, to first laser rangefinder, second laser rangefinder and the 3rd
The plane coordinates and azimuth combination of two of laser range finder is calculated.
It is then possible to the first cable center plane coordinates (X1, Y1), second cable center's plane coordinates
(X2, Y2) and the 3rd cable center plane coordinates (X3, Y3) arithmetic average is asked for, as cable
Central plane coordinate (X, Y), and to the first well head central plane coordinate (M1, N1), the second well head
Central plane coordinate (M2, N2) and the 3rd well head central plane coordinate (M3, N3) ask for arithmetic mean
Value, as well head central plane coordinate (M, N).
Then, based on cable center's plane coordinates (X, Y) and the well head central plane coordinate (M,
N), it is possible to obtain the plane coordinates (X, Y) of cable center and the plane coordinates (M, N) at well head center
Between difference.
In one example, centering unit 203 can be controlled by main control unit 202 to move in the horizontal direction
It is dynamic, to adjust the plan-position of the top sheave so that cable center is aligned with well head center (even if also
Obtain the difference between the plane coordinates (X, Y) and the plane coordinates (M, N) at well head center of cable center
Value is zero), so as to the centering for completing cable center and well head center is operated.
The center of cable and the center of well head can be realized according to cable center support system in the well of the disclosure
Position is accurately aligned, and well Instrumental equipment is precisely issued to well head and is not struck against the borehole wall, it is therefore prevented that
The damage that equipment is caused during going into the well.
It will be understood by those skilled in the art that above the purpose of the description of embodiment of this disclosure is only for showing
The beneficial effect of example property ground explanation embodiment of the disclosure, is not intended to be limited to embodiment of the disclosure
Given any example.
Embodiment 2
Flow process in the well that Fig. 4 shows according to one embodiment of the disclosure the step of cable centering method
Figure.
In this embodiment, there is provided cable centering method in a kind of well, the method can include：Step
401, multiple laser range finders are adjusted to sight the cable center of top sheave lower end and the well head center of raised platform around a well,
Multiple laser range finders are obtained respectively relative to cable center and the azimuth relative to well head center；Step
402, multiple laser range finders are positioned, the plane coordinates of multiple laser range finders is obtained；Step
403, based on multiple laser range finders relative to cable center and the azimuth relative to well head center and many
The plane coordinates of individual laser range finder, obtains the plane coordinates of cable center and the plane coordinates at well head center
Between difference；And step 404, the plane seat of plane coordinates and well head center based on cable center
Difference between mark, carries out cable center and well head center centering operation.
The center of the center and well head that this embodiment achieves cable is accurately aligned, so as to avoid
The uncertainty of the field construction on-site supervision of seismic prospecting in well.
In one example, multiple laser range finders can include that first laser rangefinder, second laser are surveyed
Distance meter and the 3rd laser range finder.
In one example, the difference obtained between cable center and the plane coordinates at well head center can be wrapped
Include：Based on first laser rangefinder and the plane coordinates of second laser rangefinder, and relative in cable
The heart and the azimuth relative to well head center, obtain first cable center's plane coordinates and the first well head center
Plane coordinates；Based on second laser rangefinder and the plane coordinates of the 3rd laser range finder, and relative to
Cable center and the azimuth relative to well head center, obtain second cable center's plane coordinates and the second well
Mouth central plane coordinate；Based on first laser rangefinder and the plane coordinates of the 3rd laser range finder, and
Relative to cable center and the azimuth relative to well head center, obtain the 3rd cable center's plane coordinates and
3rd well head central plane coordinate；To first cable center's plane coordinates, second cable center's plane coordinates
And the 3rd cable center's plane coordinates ask for arithmetic average, it is as cable center's plane coordinates and right
First well head central plane coordinate, the second well head central plane coordinate and the 3rd well head central plane coordinate are asked
Arithmetic average is taken, as well head central plane coordinate；And it is based on cable center's plane coordinates and well head
Central plane coordinate, obtains the difference between the plane coordinates and the plane coordinates at well head center of cable center.
It will be understood by those skilled in the art that above the purpose of the description of embodiment of this disclosure is only for showing
The beneficial effect of example property ground explanation embodiment of the disclosure, is not intended to be limited to embodiment of the disclosure
Given any example.
It is described above the presently disclosed embodiments, described above is exemplary, and non-exclusive
, and it is also not necessarily limited to disclosed each embodiment.In the scope without departing from illustrated each embodiment and
In the case of spirit, many modifications and changes are all aobvious for those skilled in the art
And be clear to.The selection of term used herein, it is intended to best explain principle, the reality of each embodiment
Using or improvement to the technology in market, or other those of ordinary skill of the art is managed
Solve each embodiment disclosed herein.
Claims (10)
1. cable center support system in a kind of well, the system include：
Measuring unit, which includes multiple laser range finders and positioner, and the plurality of laser range finder shines
The cable center of quasi- top sheave lower end and the well head center of raised platform around a well, obtain the plurality of laser range finder respectively
Relative to cable center and the azimuth relative to well head center, and by the positioner to described many
Individual laser range finder is positioned, and obtains the plane coordinates of the plurality of laser range finder；
Main control unit, which is based on the plurality of laser range finder relative to cable center and relative in well head
The azimuth of the heart and the plane coordinates of the plurality of laser range finder, obtain the plane coordinates of cable center
And the difference between the plane coordinates at well head center, and control centering unit movement with complete cable center and
The centering operation at well head center；And
Centering unit, which can move in the horizontal direction, to adjust the plan-position of the top sheave.
2. cable center support system in well according to claim 1, wherein, the measuring unit is also wrapped
Include：
Head, is installed the plurality of laser range finder on the head, and can be adjusted by the head
That saves the plurality of laser range finder sights angle.
3. cable center support system in well according to claim 1, wherein, the positioner is GPS
Position indicator.
4. cable center support system in well according to claim 1, wherein, the centering unit includes：
Adjusting rod, which can be moved in the horizontal direction；
Motor, which can drive the adjusting rod；And
Steelframe, its described adjusting rod of support.
5. cable center support system in well according to claim 1, wherein, the plurality of laser ranging
Instrument includes：First laser rangefinder, second laser rangefinder and the 3rd laser range finder.
6. cable center support system in well according to claim 5, wherein, the main control unit is obtained
Difference between the plane coordinates at cable center and well head center includes：
Based on the first laser rangefinder and the plane coordinates of the second laser rangefinder, and relatively
In cable center and the azimuth relative to well head center, first cable center's plane coordinates and first is obtained
Well head central plane coordinate；
Based on the second laser rangefinder and the plane coordinates of the 3rd laser range finder, and relatively
In cable center and the azimuth relative to well head center, second cable center's plane coordinates and second is obtained
Well head central plane coordinate；
Based on the first laser rangefinder and the plane coordinates of the 3rd laser range finder, and relatively
In cable center and the azimuth relative to well head center, the 3rd cable center's plane coordinates and the 3rd is obtained
Well head central plane coordinate；
To first cable center's plane coordinates, second cable center's plane coordinates and the 3rd cable center's plane
Coordinate asks for arithmetic average, as cable center's plane coordinates, and the first well head central plane is sat
Mark, the second well head central plane coordinate and the 3rd well head central plane coordinate ask for arithmetic average, as
Well head central plane coordinate；And
Based on cable center's plane coordinates and the well head central plane coordinate, cable center is obtained
Difference between the plane coordinates at plane coordinates and well head center.
7. cable center support system in well according to claim 5, wherein, the first laser range finding
Instrument, any two of the second laser rangefinder and the 3rd laser range finder and cable center
Angle between line is 120 degree.
8. cable centering method in a kind of well, methods described include：
Multiple laser range finders are adjusted to sight the cable center of top sheave lower end and the well head center of raised platform around a well,
The plurality of laser range finder is obtained respectively relative to cable center and the azimuth relative to well head center；
The plurality of laser range finder is positioned, the plane coordinates of the plurality of laser range finder is obtained；
Based on the plurality of laser range finder relative to cable center and relative to well head center azimuth with
And the plane coordinates of the plurality of laser range finder, obtain plane coordinates and the well head center of cable center
Difference between plane coordinates；And
Plane coordinates based on cable center and the difference between the plane coordinates at well head center, carry out cable
Center and well head center centering operation.
9. cable centering method in well according to claim 8, wherein, the plurality of laser ranging
Instrument includes：First laser rangefinder, second laser rangefinder and the 3rd laser range finder.
10. cable center support system in well according to claim 9, wherein, obtain cable center and well
Difference between the plane coordinates at mouth center includes：
Based on the first laser rangefinder and the plane coordinates of the second laser rangefinder, and relatively
In cable center and the azimuth relative to well head center, first cable center's plane coordinates and first is obtained
Well head central plane coordinate；
Based on the second laser rangefinder and the plane coordinates of the 3rd laser range finder, and relatively
In cable center and the azimuth relative to well head center, second cable center's plane coordinates and second is obtained
Well head central plane coordinate；
Based on the first laser rangefinder and the plane coordinates of the 3rd laser range finder, and relatively
In cable center and the azimuth relative to well head center, the 3rd cable center's plane coordinates and the 3rd is obtained
Well head central plane coordinate；
To first cable center's plane coordinates, second cable center's plane coordinates and the 3rd cable center's plane
Coordinate asks for arithmetic average, as cable center's plane coordinates, and the first well head central plane is sat
Mark, the second well head central plane coordinate and the 3rd well head central plane coordinate ask for arithmetic average, as
Well head central plane coordinate；And
Based on cable center's plane coordinates and the well head central plane coordinate, cable center is obtained
Difference between the plane coordinates at plane coordinates and well head center.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066100A (en) * | 1991-12-25 | 1992-11-11 | 魏营隆 | Bit central coordinates real-time measurement in the while drilling for large driller |
| WO2002004891A1 (en) * | 2000-07-12 | 2002-01-17 | Trimble Ab | Spatial positioning |
| CN101788291A (en) * | 2010-02-02 | 2010-07-28 | 武汉科技大学 | Measuring device for aligning with continuous casting crystallizer and measuring method thereof |
| JP2014020060A (en) * | 2012-07-13 | 2014-02-03 | Kansai Koji Sokuryo Kk | System and method for providing information to operator of pile driver |
| CN104075696A (en) * | 2014-06-20 | 2014-10-01 | 内蒙古电力勘测设计院有限责任公司 | Coordinate measurement method |
| CN204258240U (en) * | 2014-10-31 | 2015-04-08 | 中国石油天然气股份有限公司 | A kind of wellhead cable guiding hunting gear |
| CN104675381A (en) * | 2013-11-26 | 2015-06-03 | 中国石油天然气股份有限公司 | Drilled well target hitting status assessing method and device |
| CN104897061A (en) * | 2015-06-19 | 2015-09-09 | 太原理工大学 | Total station and three-dimensional laser scanning combined large-scale maritime work equipment measuring method |
-
2015
- 2015-09-29 CN CN201510633870.7A patent/CN106556871B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066100A (en) * | 1991-12-25 | 1992-11-11 | 魏营隆 | Bit central coordinates real-time measurement in the while drilling for large driller |
| WO2002004891A1 (en) * | 2000-07-12 | 2002-01-17 | Trimble Ab | Spatial positioning |
| CN101788291A (en) * | 2010-02-02 | 2010-07-28 | 武汉科技大学 | Measuring device for aligning with continuous casting crystallizer and measuring method thereof |
| JP2014020060A (en) * | 2012-07-13 | 2014-02-03 | Kansai Koji Sokuryo Kk | System and method for providing information to operator of pile driver |
| CN104675381A (en) * | 2013-11-26 | 2015-06-03 | 中国石油天然气股份有限公司 | Drilled well target hitting status assessing method and device |
| CN104075696A (en) * | 2014-06-20 | 2014-10-01 | 内蒙古电力勘测设计院有限责任公司 | Coordinate measurement method |
| CN204258240U (en) * | 2014-10-31 | 2015-04-08 | 中国石油天然气股份有限公司 | A kind of wellhead cable guiding hunting gear |
| CN104897061A (en) * | 2015-06-19 | 2015-09-09 | 太原理工大学 | Total station and three-dimensional laser scanning combined large-scale maritime work equipment measuring method |
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| CN106556871B (en) | 2018-06-15 |
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