CN109654990A - A kind of coiled tubing wall thickness on-line measurement probe based on pulse ACFM - Google Patents
A kind of coiled tubing wall thickness on-line measurement probe based on pulse ACFM Download PDFInfo
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- CN109654990A CN109654990A CN201910018078.9A CN201910018078A CN109654990A CN 109654990 A CN109654990 A CN 109654990A CN 201910018078 A CN201910018078 A CN 201910018078A CN 109654990 A CN109654990 A CN 109654990A
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- coiled tubing
- detection probe
- trolley
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
The present invention provides a kind of coiled tubing wall thickness on-line measurement probe based on pulse ACFM, including coiled tubing, trolley, detection probe, spring, attachment device and fixed device.Detection probe is mounted in the groove of trolley, maximally reduce the lift off between detection probe and coiled tubing, improve the effect of measurement, trolley passes through wheel and the contact of the coiled tubing of work, avoid the abrasion of probe, spring compression is in detection probe, it ensure that the lift off between detection probe and coiled tubing is constant, solves the problems, such as conventional fixed electromagnetic detection probe measurement data inaccuracy, uniformly distributed multiple detection probes on coiled tubing, scanning reflects the wall thickness reduction situation of entire oil pipe, detection efficiency is high, it include excitation coil inside detection probe, magnetic core and magnetic field sensor, by pulse signal load in excitation coil, according to the difference of field decay on oil pipe come wall-thickness measurement, measurement process is simple, precision is high, couplant is not needed.
Description
Technical field
The present invention relates to detection probe field more particularly to a kind of coiled tubing wall thickness on-line measurements based on pulse ACFM
Probe.
Background technique
The dosage of coiled tubing is in recent years the exploitation of shale gas is sharply increased, in order to guarantee in use
Safety, on-line monitoring and detection are particularly important；The applying working condition of coiled tubing is complicated, and mechanical wear and corrosion easily cause
Coiled tubing wall thickness is thinned；It needs to carry out online measurement to the wall thickness of coiled tubing, avoid because the failure of oil pipe causes
Big loss.
Currently used thickness measuring mode includes ultrasonic thickness measurement and electromagnetic ultrasonic thickness measuring etc., and the method for ultrasonic thickness measurement needs to couple
Agent, speed is slow, is not suitable for the online thickness measuring of coiled tubing, and electromagnetic ultrasonic thickness measuring is for the stability of online high speed thickness measuring
With reliability deficiency, since the applying working condition of coiled tubing is severe, the variation of coiled tubing ovality is often resulted in, wall thickness is caused
Lift-off and wall thickness in measurement process change simultaneously, so the electromagnetic detection probe of regular stationary is often difficult to the accurately company of measurement
The wall thickness of continuous oil pipe, and easily cause the abrasion of probe.
Summary of the invention
Object of the present invention is in view of the deficiencies of the prior art, pulse alternating current field measurement technology (ACFM) company of applying to
In the on-line measurement of continuous oil pipe wall thickness, uniform electric field is induced on coiled tubing by U-shaped magnetic core, different wall thickness is to arteries and veins
The response for rushing signal is different, picks up the magnetic field signal in space with magnetic field sensor, and then calculate the wall thickness of coiled tubing, surveys
Amount process is simple, does not need to couple；Changing for coiled tubing ovality influences wall thickness measuring precision and wear detecting probe
Conventional stationary probe is changed to trailing type probe, guarantees that detection probe and tested coiled tubing lift off are constant by deficiency,
And abrasion of the coiled tubing for detection probe is avoided, the online precise measurement of coiled tubing wall thickness is realized；Continuous oil
Uniformly distributed multiple detection probes in pipe circumferential direction, since wall thickness reduction is generally area corrosion, a scanning reflects entire coiled tubing
One week wall thickness reduction situation.
The embodiment of the present application provides a kind of coiled tubing wall thickness on-line measurement probe based on pulse ACFM, the continuous oil
Thickness of pipe wall on-line measurement probe includes coiled tubing, trolley, detection probe, spring；It is uniformly distributed N number of in the coiled tubing circumferential direction
The detection probe, the detection probe include excitation coil, and U-shaped magnetic core and magnetic field sensor, the detection coil are wrapped in
On the U-shaped magnetic core, the magnetic field sensor is mounted on the middle position below the U-shaped magnetic core, leads in the excitation coil
Periodically pulsing signal, the detection probe pedestal are mounted in the groove of the trolley, and the trolley passes through wheel and institute
Coiled tubing contact is stated, the spring compression is in the detection probe.
Further, the trolley includes trolley frame, fixture nut, wheel；The probe is mounted on the recessed of the trolley
In slot, the trolley is contacted by four wheels and the coiled tubing, and the wheel carries bearing, the axis of the wheel
It is mounted in the mounting hole of the trolley frame, is fastened by the fixture nut, the wheel is fixed on the trolley frame,
Protrusion in the detection probe is mounted in the groove of the trolley frame, and the detection probe and the trolley is made to be connected to one
It rises, the middle position of the trolley frame does not have material.
Further, the detection probe includes probe shell, excitation coil, magnetic core, magnetic field sensor, probe cover；It is described
Groove on probe shell, which is used to store, is wrapped in the excitation coil raised on the magnetic core, and the protrusion on the probe shell is used
Fix the magnetic core, the groove on the probe shell is used to install the sensor, the center line of the groove and the inspection
The center line for surveying probe length is overlapped, and the groove on the probe shell is used to install the protrusion on the probe cover, the probe
Fixing axle on shell is used to install the holddown spring, the fixation as spring position, and the hole on the probe shell is used to pass through
The signal wire of the excitation coil and the sensor.
Further, feature further includes attachment device and fixed device, and the outside of the spring is the fixed device,
The fixed device is M part, and the detection probe is mounted in the groove of the fixed device, the length of groove and the inspection
The length of probing head is consistent, and the width of groove is the wide half of detection probe, and two fixed devices are fixed together, the detection probe
It is mounted on the inside；There is boss at the both ends of each fixed device, there is hole on boss, and the attachment device includes nut and spiral shell
Bolt, the connection device are linked together the fixed device by the boss of the fixed device.
Further, the N and M is the natural number greater than 1.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the assembling schematic diagram of coiled tubing wall thickness on-line measurement probe in the embodiment of the present application
Fig. 2 is the configuration schematic diagram of coiled tubing wall thickness on-line measurement probe in the embodiment of the present application
Fig. 3 is the vehicle structure of coiled tubing wall thickness on-line measurement probe in the embodiment of the present application
Fig. 4 is the detection probe explosive view of coiled tubing wall thickness on-line measurement probe in the embodiment of the present application
Fig. 5 is the detection probe shell structure figure of coiled tubing wall thickness on-line measurement probe in the embodiment of the present application
Fig. 6 is the installation diagram of the detection probe of coiled tubing wall thickness on-line measurement probe and trolley in the embodiment of the present application
Fig. 7 is the assembly of the fixation device of coiled tubing wall thickness on-line measurement probe and detection probe in the embodiment of the present application
Figure
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The embodiment of the present application provides a kind of coiled tubing wall thickness on-line measurement probe based on pulse ACFM.Such as Fig. 1 and Fig. 2
It is shown, in the coiled tubing circumferential direction, every 90 ° of installations, one detection probe, 4 positions of coiled tubing can be measured simultaneously
Wall thickness, wall thickness reduction are generally area corrosion, and coiled tubing diameter is small, and 4 detection probes can detecte entire coiled tubing
Wall thickness reduction situation；The detection probe pedestal is mounted in the groove of the trolley, and the trolley passes through wheel and the company
Continuous oil pipe contact, solves the problems, such as the variation wear detecting probe due to coiled tubing ovality, the spring compression is in institute
It states in detection probe, keeps the lift off between the detection probe and coiled tubing constant, solve conventional fixed
Electromagnetic detection probe is difficult to accurately measure the deficiency of the coiled tubing wall thickness, and the outside of the spring is the fixed dress
It sets, the fixed device is 4 parts, convenient for the disassembly of whole device.
Further, as shown in figure 3, the trolley includes trolley frame 201, fixture nut 202, wheel 203；The probe
30 are mounted in the groove of the trolley 20, the lift-off that the detection probe and the coiled tubing 10 can be made to be kept fixed away from
From equally avoiding 10 wear detecting probe 30 of coiled tubing；Trolley 20 is contacted by four wheels 203 and coiled tubing 10, wheel
203 inside of son carries bearing, and as coiled tubing 10 rolls, the axis of wheel 203 is mounted in the mounting hole of trolley frame 201, leads to
The fastening of fixture nut 202 is crossed, wheel 203 is fixed on trolley frame 201；Protrusion in detection probe 30 is mounted on trolley frame
In 201 groove, detection probe 30 and trolley 20 is made to link together, the middle position of trolley frame 201 does not have material, for pacifying
Detection probe 30 is filled, the lift off between detection probe 30 and coiled tubing 10 is maximally reduced, improves wall thickness detection
Precision.
Further, as Figure 4-Figure 6, the detection probe 30 include probe shell 301, excitation coil 302, magnetic core 303,
Sensor 304, probe cover 305；Excitation coil 302 is wrapped on magnetic core 303, by the strobe signal in excitation coil,
Uniform electric field is motivated on the coiled tubing in the middle position of magnetic core 303, the electric field motivated can be continuous with depth
Decaying, the attenuation law of different wall thickness is different, and different current signals can generate different magnetic field signals in space again, leads to
The variation for crossing the magnetic field of the pickup of sensor 304, realizes the measurement to 10 wall thickness of coiled tubing, measuring principle is simple, does not need coupling
Mixture；Groove 3012 on probe shell 301, which is used to store, is wrapped in 302 coil of excitation coil raised on magnetic core 303, shell of popping one's head in
Protrusion 3013 on 301 is used to fixed magnetic core 303, avoids the shaking of magnetic core 303, influences the precision of detection；It pops one's head on shell 301
Groove 3014 is used to install detection sensor 304, and the center line of 30 length of center line and detection probe of groove 3014 is overlapped, visits
Groove 3015 on head capsule 301 is used to install the protrusion 3052 on probe cover 305, and the fixing axle 3016 popped one's head on shell 301 is used to
Install holddown spring 40, the fixation as 40 position of spring, pop one's head in shell 301 on hole 3017 be used to by excitation coil 302 and pass
The signal wire of sensor 304.
Further, as shown in fig. 7, the detection probe 30 is mounted in the groove 6011 of fixed device 60, groove
6011 length is consistent with the length of detection probe 30, and the width of groove 6011 is the wide half of detection probe 30, two fixed devices 60
It links together, detection probe 30 is mounted on the inside；There is boss at the both ends of each fixed device, there is hole 6012 on boss；Even
Connection device 50 includes nut 501 and bolt 502, and fixed device is installed together by the hole 6012 on 50 boss of attachment device.
Compared with prior art, the advantageous effects for the technical solution that the embodiment of the present application is proposed include:
(1) thickness measuring method is simple, does not need couplant, and coiled tubing may be implemented and measure at a high speed online；
(2) conventional fixed probe is changed to the probe of trailing type, solves stationary probe electromechanical detection method
Due to lift-off variation and can not accurate wall-thickness measurement the problem of；
(3) it is in rolling contact by wheel and coiled tubing, compensates for coiled tubing since ovality changes, abrasion detection is visited
The deficiency of head.
(4) uniformly distributed multiple detection probes, a scanning can detecte the wall thickness of entire coiled tubing in coiled tubing circumferential direction
Thinned situation.
Claims (5)
1. a kind of coiled tubing wall thickness on-line measurement probe based on pulse ACFM, feature includes coiled tubing (10), trolley
(20), detection probe (30), spring (40)；In coiled tubing (10) circumferential direction, uniformly distributed N number of detection probe (30), institute
Stating detection probe (30) includes excitation coil (302), U-shaped magnetic core (303) and magnetic field sensor (304), the detection coil
(302) it is wrapped on the U-shaped magnetic core (303), the magnetic field sensor (304) is mounted below the U-shaped magnetic core (303)
Middle position, periodically pulsing signal is led in the excitation coil (302), and detection probe (30) pedestal is mounted on described
In the groove of trolley (20), the spring (40) is pressed on the detection probe (30).
2. a kind of coiled tubing wall thickness on-line measurement probe based on pulse ACFM as described in claim 1, which is characterized in that
The trolley includes trolley frame, fixture nut, wheel；The probe is mounted in the groove of the trolley, and the trolley passes through
Four wheels and coiled tubing contact, the wheel carry bearing, and the axis of the wheel is mounted on the trolley frame
Mounting hole in, fastened by the fixture nut, the wheel be fixed on the trolley frame, in the detection probe
Protrusion is mounted in the groove of the trolley frame, and the detection probe and the trolley is made to link together.
3. a kind of coiled tubing wall thickness on-line measurement probe based on pulse ACFM as described in claim 1, which is characterized in that
The detection probe includes probe shell, excitation coil, magnetic core, magnetic field sensor, probe cover；Groove on the probe shell is used to
Storage is wrapped in the excitation coil raised on the magnetic core, and the protrusion on the probe shell is used to fix the magnetic core, institute
The groove on probe shell is stated to be used to that the sensor, the center line of the center line of the groove and the detection probe length are installed
It is overlapped, the groove on the probe shell is used to install the protrusion on the probe cover, and the fixing axle on the probe shell is used to pacify
The holddown spring is filled, the fixation as spring position, hole is used to pass through the excitation coil and the biography on the probe shell
The signal wire of sensor.
4. a kind of coiled tubing wall thickness on-line measurement probe based on pulse ACFM as described in claim 1, feature are also wrapped
Attachment device and fixed device are included, the outside of the spring is the fixed device, and the fixed device is M part, described
Detection probe is mounted in the groove of the fixed device, and the length of groove is consistent with the length of the detection probe, and the width of groove is
The wide half of detection probe, two fixed devices are fixed together, and the detection probe is mounted on the inside；Each fixed dress
There is boss at the both ends set, there is hole on boss, and the attachment device includes nuts and bolt, and the connection device passes through the fixation
The boss of device links together the fixed device.
5. a kind of coiled tubing wall thickness on-line measurement probe based on pulse ACFM as described in claim 1, which is characterized in that
The N and M is the natural number greater than 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910018078.9A CN109654990B (en) | 2019-01-09 | 2019-01-09 | Continuous oil pipe wall thickness online measurement probe based on pulse ACFM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910018078.9A CN109654990B (en) | 2019-01-09 | 2019-01-09 | Continuous oil pipe wall thickness online measurement probe based on pulse ACFM |
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| Publication Number | Publication Date |
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| CN109654990A true CN109654990A (en) | 2019-04-19 |
| CN109654990B CN109654990B (en) | 2021-03-19 |
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| CN201910018078.9A Active CN109654990B (en) | 2019-01-09 | 2019-01-09 | Continuous oil pipe wall thickness online measurement probe based on pulse ACFM |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111257433A (en) * | 2020-03-23 | 2020-06-09 | 燕山大学 | Ultrasonic automatic flaw detection device for large-scale casting and forging |
| CN116412746A (en) * | 2023-02-17 | 2023-07-11 | 宁波方力科技股份有限公司 | Online detection device, production line and detection method for wall thickness of plastic pipe |
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| CN116412746A (en) * | 2023-02-17 | 2023-07-11 | 宁波方力科技股份有限公司 | Online detection device, production line and detection method for wall thickness of plastic pipe |
| CN116412746B (en) * | 2023-02-17 | 2024-05-14 | 宁波方力科技股份有限公司 | Online detection device, production line and detection method for wall thickness of plastic pipe |
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