CN201796015U - Electromagnetic ultrasonic wellhead automatic flaw detection device for petroleum drilling tool - Google Patents
Electromagnetic ultrasonic wellhead automatic flaw detection device for petroleum drilling tool Download PDFInfo
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- CN201796015U CN201796015U CN2010205203777U CN201020520377U CN201796015U CN 201796015 U CN201796015 U CN 201796015U CN 2010205203777 U CN2010205203777 U CN 2010205203777U CN 201020520377 U CN201020520377 U CN 201020520377U CN 201796015 U CN201796015 U CN 201796015U
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- 238000005553 drilling Methods 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 title claims description 18
- 239000003208 petroleum Substances 0.000 title 1
- 238000004880 explosion Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003129 oil well Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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Abstract
The utility model discloses an automatic device of detecting a flaw of oil drilling tool electromagnetic ultrasonic well head relates to oil drilling tool electromagnetic ultrasonic inspection equipment's design and manufacturing technical field. The electromagnetic pulse generator comprises an electromagnet and a coil, wherein the coil is arranged in the middle of the electromagnet, a follow-up mechanism is arranged outside the electromagnet, the electromagnet is connected with an alternating power supply, the electromagnetic pulse generator further comprises a microprocessor for sending out a pulse string, a pulse power amplifier which is connected with the microprocessor and amplifies pulses, the coil is connected with the pulse power amplifier, a preamplifier which is connected with the coil and amplifies the voltage induced in the coil, a detector, an attenuator and a video amplifier which are sequentially connected with the preamplifier and sequentially detect, attenuate and amplify the voltage, and the video amplifier is connected with a computer. The utility model discloses still can detect a flaw in succession when having carried out the tripping operation, therefore accelerated the speed of well drilling greatly.
Description
Technical field
The utility model relates to the design and the manufacturing technology field of oil drilling tools electromagnetic supersonic flaw detecting equipment.
Background technology
In the prior art, oil drilling tools extensively adopts the piezoelectric supersonic defect-detecting equipment to detect a flaw, and is 201440068U as notification number, and the day for announcing is that the Chinese patent literature on April 21st, 2010 discloses a kind of well head oil pipe nondestructive examination detector.At the scene of recovering the oil, need carry out the real non-destructive carrying out flaw detection to oil pipe (bar) especially, existing technology all is to adopt flux-leakage detection method, adopt the axial excitation of permanent magnet, Hall element carries out Non-Destructive Testing to the defective of oil pipe (bar), because method is single, have omission, it is bigger to detect the blind area.The composition of this product comprises: industrial computer 1, described industrial computer 1 is connected with instrument box 2 by cable 5, described instrument box 2 is connected with leakage flux probe 4 with total magnetic flux probe 3 by signal lines 6 respectively, and described leakage flux probe 4 connects with described total magnetic flux probe 3.This product is used for oil well pipe or the oil well bar detects.
But because this equipment is to detected material surface requirements precision height, discovery and the receiving directivity of probe are strong, and need transmit sound wave by couplant, so the continuous flaw detection can't carry out tripping operation the time, have influenced bit speed.
The utility model content
For solving the problems of the technologies described above, the utility model proposes a kind of oil drilling tools electromagnetic acoustic well head automatic flaw detection device, the utility model still can be detected a flaw when carrying out tripping operation continuously, thereby has accelerated the speed of drilling well greatly.
The utility model is realized by adopting following technical proposals:
A kind of oil drilling tools electromagnetic acoustic well head automatic flaw detection device, it is characterized in that: comprise electromagnet and coil, coil is arranged on the centre of electromagnet, the outer setting of electromagnet has follower, electromagnet is connected with alternating source, also comprise the microprocessor DSP that sends train of impulses, be connected the also pulse power amplifier of paired pulses processing and amplifying with microprocessor DSP, coil is connected with pulse power amplifier, the prime amplifier that is connected with coil and the voltage that induces in the coil is amplified, be connected successively with prime amplifier and successively voltage carried out detection, decay, the wave detector of video processing and amplifying, the attenuator and the video amplifier are connected with computing machine with the video amplifier.
Described follower comprises explosion-resistant enclosure, and universal shaft and angle sheave are installed on the explosion-resistant enclosure, and electromagnet and coil are installed in the described explosion-resistant enclosure.
Described pulse power amplifier is connected with the pulse-width modulator PWM output of microprocessor DSP.
Compared with prior art, the beneficial effects of the utility model show:
1, the utility model is simple in structure, detection speed is fast, satisfied the requirement that makes a trip at a high speed, and owing to have follower, holding coil contacts with surface of drill stem reliably with electromagnet effectively, improve the detection effect, when carrying out tripping operation, still can detect a flaw continuously, thereby accelerated the speed of drilling well greatly.
2, the follower of the utility model employing has explosion-resistant enclosure, can effectively guarantee the safe in utilization of failure detector,
Description of drawings
The utility model is described in further detail below in conjunction with specification drawings and specific embodiments, wherein:
Fig. 1 is a structural representation of the present utility model
Fig. 2 is a fundamental diagram of the present utility model
Mark among the figure:
1, drilling tool, 2, coil, 3, electromagnet, 4, universal shaft, 4, angle sheave, 5, explosion-resistant enclosure, 6, pulse power amplifier, 7, prime amplifier, 8, wave detector, 9, attenuator, 10, the video amplifier, 11, microprocessor DSP, 12, computing machine.
Embodiment
A kind of oil drilling tools electromagnetic acoustic well head automatic flaw detection device, comprise electromagnet 3 and coil 2, coil 2 is arranged on the centre of electromagnet 3, the outer setting of electromagnet 3 has follower, electromagnet 3 is connected with alternating source, also comprise the microprocessor DSP11 that sends train of impulses, be connected the also pulse power amplifier 6 of paired pulses processing and amplifying with microprocessor DSP11, coil is connected with pulse power amplifier 6, the prime amplifier 7 that is connected with coil 2 and the voltage that induces in the coil 2 is amplified, be connected successively and successively voltage carried out detection with prime amplifier 7, decay, the wave detector 8 of video processing and amplifying, the attenuator 9 and the video amplifier 10 are connected with computing machine 12 with the video amplifier 10.Described follower comprises explosion-resistant enclosure 5, and universal shaft 4 and angle sheave 5 are installed on the explosion-resistant enclosure 5, and electromagnet 3 and coil 2 are installed in the described explosion-resistant enclosure 5.Described pulse power amplifier 6 is connected with the pulse-width modulator PWM output of microprocessor DSP11.
As preferred forms of the present utility model be: form by electromagnet 3, coil 2, microprocessor DSP11, pulse power amplifier 6, prime amplifier 7, wave detector 8, attenuator 9, the video amplifier 10 and computing machine 12 etc.One coil 2 is arranged in the centre of electromagnet 3.There is a follower outside of electromagnet 3.Electromagnet 3 coils 2 are connected with alternating source, and coil 2 is connected with pulse amplifier.During detection, electromagnet 3 and coil 2 keep minor increment by follower roller and drilling tool 1.
Structure of the present invention is as shown in Figure 1: a coil 2 is arranged in the middle of electromagnet 3.There are a universal shaft 4 and angle sheave 5 in electromagnet 3 outsides.High-frequency line coil 2 connects pulse power amplifier 6 by lead, and pulse power amplifier 6 is connected with the pulse-width modulator PWM output of microprocessor DSP11.
Principle of work of the present invention is: microprocessor DSP11 sends train of impulses by pulse-width modulator PWM, amplifying the back by pulse power amplifier 6 passes to the high-frequency current of alternation for coil 2, in the skin layer that becomes on drilling tool 1 surface, produce eddy current, eddy current is dither under the effect of the magnetic field force that electromagnet 3 sends, and forms ultrasonic source.Coil 2 receives ultrasound wave simultaneously, the vibration on drilling tool 1 surface simultaneously also can induce voltage under the effect of the magnetic field force that electromagnet 3 sends in coil 2, after this voltage passes through prime amplifier 7 amplifications, detection, decay, carry out the A/D conversion, send into microprocessor DSP11 then and carry out analyzing and processing, result will show on LED, send into PC simultaneously.
Claims (3)
1. oil drilling tools electromagnetic acoustic well head automatic flaw detection device, it is characterized in that: comprise electromagnet (3) and coil (2), coil (2) is arranged on the centre of electromagnet (3), the outer setting of electromagnet (3) has follower, electromagnet (3) is connected with alternating source, also comprise the microprocessor (11) of sending train of impulses, be connected the also pulse power amplifier (6) of paired pulses processing and amplifying with microprocessor (11), coil (2) is connected with pulse power amplifier (6), the prime amplifier (7) that is connected with coil (2) and the voltage that induces in the coil (2) is amplified, be connected successively and successively voltage carried out detection with prime amplifier (7), decay, the wave detector of video processing and amplifying (8), the attenuator (9) and the video amplifier (10) are connected with computing machine (12) with the video amplifier (10).
2. oil drilling tools electromagnetic acoustic well head automatic flaw detection device according to claim 1, it is characterized in that: described follower comprises explosion-resistant enclosure (5), universal shaft (4) and angle sheave (5) are installed on the explosion-resistant enclosure (5), and electromagnet (3) and coil (2) are installed in the described explosion-resistant enclosure (5).
3. oil drilling tools electromagnetic acoustic well head automatic flaw detection device according to claim 1 is characterized in that: described pulse power amplifier (6) is connected with the pulse-width modulator output of microprocessor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205203777U CN201796015U (en) | 2010-09-07 | 2010-09-07 | Electromagnetic ultrasonic wellhead automatic flaw detection device for petroleum drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205203777U CN201796015U (en) | 2010-09-07 | 2010-09-07 | Electromagnetic ultrasonic wellhead automatic flaw detection device for petroleum drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201796015U true CN201796015U (en) | 2011-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205203777U Expired - Fee Related CN201796015U (en) | 2010-09-07 | 2010-09-07 | Electromagnetic ultrasonic wellhead automatic flaw detection device for petroleum drilling tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN201796015U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014040543A1 (en) * | 2012-09-12 | 2014-03-20 | 田立 | Electromagnetic ultrasonic transducer and on-line inspection system comprising same |
| CN107167518A (en) * | 2017-04-19 | 2017-09-15 | 西安交通大学 | Loop laser electromagnetic acoustic focusing probe |
| CN109973828A (en) * | 2019-04-09 | 2019-07-05 | 山东省科学院激光研究所 | On-line detecting system and method is thinned in flame-proof type electromagnetic acoustic oil-gas pipeline corrosion |
-
2010
- 2010-09-07 CN CN2010205203777U patent/CN201796015U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014040543A1 (en) * | 2012-09-12 | 2014-03-20 | 田立 | Electromagnetic ultrasonic transducer and on-line inspection system comprising same |
| US9804131B2 (en) | 2012-09-12 | 2017-10-31 | Zhiheng Tian | Electromagnetic ultrasonic transducer and on-line inspection system comprising same |
| CN107167518A (en) * | 2017-04-19 | 2017-09-15 | 西安交通大学 | Loop laser electromagnetic acoustic focusing probe |
| CN109973828A (en) * | 2019-04-09 | 2019-07-05 | 山东省科学院激光研究所 | On-line detecting system and method is thinned in flame-proof type electromagnetic acoustic oil-gas pipeline corrosion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20180907 |