CN104034797A - Technology for lossless drilling rod detection - Google Patents
Technology for lossless drilling rod detection Download PDFInfo
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- CN104034797A CN104034797A CN201410304797.4A CN201410304797A CN104034797A CN 104034797 A CN104034797 A CN 104034797A CN 201410304797 A CN201410304797 A CN 201410304797A CN 104034797 A CN104034797 A CN 104034797A
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Abstract
The invention discloses a technology for lossless drilling rod detection. The technology comprises the following steps of cleaning the surfaces of drilling rods to be detected; performing magnetic powder detection or permeation detection on the surfaces of the drilling rods and near surfaces; performing ultrasonic detection on the qualified drilling rods without cracks, which are detected in the step B, and performing crack detection on the drilling rods with cracks, which are detected in the step B; polishing the drilling rods with the crack depths being not greater than 10 percent, which are subjected to crack detection in the step C, performing ultrasonic detection, and rejecting the drilling rods with the crack depths being greater than 10 percent; performing ray detection on the drilling rods with over-standard drilling rod defects, which are subjected to the ultrasonic detection in the step C and the step D, and determining that the drilling rods without the over-standard defects through the ultrasonic detection are qualified; and determining that the drilling rods passing the ray detection in the step E are qualified, and determining that the drilling rods not passing the ray detection are rejected. According to the technology, the number of structural members needing to be subjected to the ray detection is reduced, the total detection time of the drilling rods is effectively shortened, the detection sensitivity is greatly higher than that of the pure ray detection, and the detection cost is lower than that of the pure ray detection.
Description
Technical field
The present invention relates to petroleum machinery field, be specifically related to the technique for drilling rod Non-Destructive Testing.
Background technology
Carrying out in work shaft, for ensureing carrying out smoothly of drilling well work, require drilling rod girth joint to carry out Non-Destructive Testing, mainly adopt now 100%X ray detection, although ray detection is very directly perceived, special butt welded seam internal volume type defect is particularly responsive, but lower for the blind crack recall rate on surface or nearly surface.Secondly, the work on the spot link of ray detection is more, and the time of a lot of steps are definite values, even if increase work efficiency to greatest extent, sense cycle is still long.Again, it is the highest that ray detection is compared other testing cost, and film, drug price are high.The clean mission life of the core component ray tube of X-ray machine X, hour to calculate, is added the ray detection cost compare costliness of image quality indicator, record sucking apparatus etc. 100%.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, be provided for the technique of drilling rod Non-Destructive Testing, this technique has reduced the number of components that need to carry out ray detection, effectively shorten total detection time of drilling rod, detection sensitivity is better than using merely ray detection greatly, and testing cost is low than 100% ray detection cost.
For solving above-mentioned technical matters, the present invention by the following technical solutions: for the technique of drilling rod Non-Destructive Testing, comprise the steps:
A, clean drilling rod surface treatment to be detected;
B, to drilling rod surface with magnetic detection is carried out on nearly surface or infiltration detects;
C, detect and do not have the qualified drilling rod of crackle to enter ultrasound examination by step B, by step B detect find crackle carry out crackle probing;
D, by the probing of step C crackle, crack depth does not exceed 10% drilling rod, allows polishing, carries out ultrasound examination, crack depth exceedes 10% drilling rod and scraps;
E, exceed standard for the drilling rod defect of carrying out ultrasound examination in step C and step D carry out ray detection, it is qualified to detect without the drilling rod of excessive defect for ultrasound examination;
F, for ray detection in step e qualified carry out drilling rod detect qualified, scrap for the underproof drilling rod of ray detection.
Drilling rod surface for ferrimagnet and surperficial comparison rule in step B adopts magnetic to detect, and adopts infiltration to detect for the complicated drilling rod surface of nonferromugnetic material or surface.
In step e, to meet the I level in JB 4730-2005 " bearing device without damage detect " standard be qualified in ultrasound examination, and all the other grades are defective.
In step F, to meet the II level in JB 4730-2005 " bearing device without damage detect " standard be qualified to ray detection, and all the other grades are defective.
Compared with prior art, the invention has the beneficial effects as follows:
1, magnetic being also set in this programme detects and permeates and detect, magnetic detects and can detect that to locate size apart from 100 microns of upper surfaces be the defect of 15 microns, infiltration detects in the reasonable situation of surface treatment, can find that size is the surface imperfection of 5 microns, and the detectable greatest drawback major diameter of ray detection is 0.5 millimeter, in the time that defect major diameter is less than 0.5 millimeter, the recall rate of defect reduces greatly, and this programme detection sensitivity is better than simple ray detection greatly.
2, the magnetic of using in this technique detects, the speed of ultrasound examination all can reach 1m/min left and right, and can obtain at the scene testing result, and obtain PRELIMINARY RESULTS, confirm the quality of part component quality, shorten total detection time of drilling rod, use merely the working link of ray detection more than additive method complexity, finally also will comment sheet to go out report, the total working cycle is long.
3, the magnetic of using in this processing step detects the potpourri that magnetic used is iron powder and coloring agent, in ultrasound examination, couplant used is machine oil or other organic coupling agent, substantially environment is not affected, less expensive, has reduced testing cost.
Brief description of the drawings
Fig. 1 is process chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated, and embodiments of the invention are not limited to this.
Embodiment:
As shown in Figure 1, the present invention includes the technique for drilling rod Non-Destructive Testing, it is characterized in that, comprise the steps:
A, clean drilling rod surface treatment to be detected;
B, to drilling rod surface with magnetic detection is carried out on nearly surface or infiltration detects;
C, detect and do not have the qualified drilling rod of crackle to enter ultrasound examination by step B, by step B detect find crackle carry out crackle probing;
D, by the probing of step C crackle, crack depth does not exceed 10% drilling rod, allows polishing, carries out ultrasound examination, crack depth exceedes 10% drilling rod and scraps;
E, exceed standard for the drilling rod defect of carrying out ultrasound examination in step C and step D carry out ray detection, it is qualified to detect without the drilling rod of excessive defect for ultrasound examination; Ultrasound examination and ray detection are for detection of the internal soundness of drilling rod, ultrasound examination speed is fast, cost is low, the work period is short, and the cycle is short and environmentally safe, but Flaw display is not directly perceived, therefore after going out drilling rod defectiveness excessive defect, ultrasound examination again it is carried out to radio frequency detection, intuitively, Measurement accuracy excessive defect, thereby judge that whether drilling rod qualified.
F, for ray detection in step e qualified carry out drilling rod detect qualified, scrap for the underproof drilling rod of ray detection.
Drilling rod surface for ferrimagnet and surperficial comparison rule in step B adopts magnetic to detect, and adopts infiltration to detect for the complicated drilling rod surface of nonferromugnetic material or surface.
In step e, to meet the I level in JB 4730-2005 " bearing device without damage detect " standard be qualified in ultrasound examination, and all the other grades are defective.
In step F, to meet the II level in JB 4730-2005 " bearing device without damage detect " standard be qualified to ray detection, and all the other grades are defective.
The detectable greatest drawback major diameter of ray detection is 0.5 millimeter, and in the time that defect major diameter is less than 0.5 millimeter, the recall rate of defect reduces greatly.The defect of this size if on drilling rod the volume type defect of weld seam inside, generally can not form stress concentrates, Effect on Mechanical Properties to member is little, but if the Area defect on or nearly surface surperficial at drill stem welding seam, belong to harmfulness, this defect under external force, concentrate and can cause crackle to be expanded rapidly, finally causes member to break by stress.And the magnetic of bringing into use in this technique detects and can detect that to locate size apart from 100 microns of upper surfaces be the defect of 15 microns, infiltration detects in the reasonable situation of surface treatment, can find that size is the surface imperfection of 5 microns, can make up preferably the defect of simple ray detection, not be prone to the situation of breaking thereby detect qualified drilling rod.
The magnetic of wherein using detects, the speed of ultrasound examination all can reach 1m/min left and right, and can obtain at the scene testing result, and obtain PRELIMINARY RESULTS, confirm the quality of part component quality, shorten total detection time of drilling rod, use merely the working link of ray detection more than additive method complexity, finally also will comment sheet to go out report, the total working cycle is long.
Just can realize as mentioned above this invention.
Claims (4)
1. for the technique of drilling rod Non-Destructive Testing, it is characterized in that, comprise the steps:
Clean drilling rod surface treatment to be detected;
Magnetic detection or infiltration detection are carried out in drilling rod surface and nearly surface;
Detect and do not have the qualified drilling rod of crackle to enter ultrasound examination by step B, by step B detect find crackle carry out crackle probing;
By the probing of step C crackle, crack depth does not exceed 10% drilling rod, allows polishing, carries out ultrasound examination, and crack depth exceedes 10% drilling rod and scraps;
What exceed standard for the drilling rod defect of carrying out ultrasound examination in step C and step D carries out ray detection, and it is qualified to detect without the drilling rod of excessive defect for ultrasound examination;
For ray detection in step e qualified carry out drilling rod detect qualified, scrap for the underproof drilling rod of ray detection.
2. the technique for drilling rod Non-Destructive Testing according to claim 1, it is characterized in that: the drilling rod surface for ferrimagnet and surperficial comparison rule in step B adopts magnetic to detect, adopt infiltration to detect for the complicated drilling rod surface of nonferromugnetic material or surface.
3. the technique for drilling rod Non-Destructive Testing according to claim 1, is characterized in that: in step e, to meet the I level in JB 4730-2005 " bearing device without damage detect " standard be qualified in ultrasound examination, and all the other grades are defective.
4. the technique for drilling rod Non-Destructive Testing according to claim 1, is characterized in that: in step F, to meet the II level in JB 4730-2005 " bearing device without damage detect " standard be qualified to ray detection, and all the other grades are defective.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410304797.4A CN104034797A (en) | 2014-06-30 | 2014-06-30 | Technology for lossless drilling rod detection |
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| CN201410304797.4A CN104034797A (en) | 2014-06-30 | 2014-06-30 | Technology for lossless drilling rod detection |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807835A (en) * | 2015-04-09 | 2015-07-29 | 常州大学 | Non-destructive testing equipment for oil and gas pipelines |
| CN108131568A (en) * | 2017-12-21 | 2018-06-08 | 常州大学 | A kind of artificial intelligence recognition methods of pipeline non-destructive testing |
| CN109298067A (en) * | 2018-03-23 | 2019-02-01 | 上海宏钢电站设备铸锻有限公司 | A kind of lossless detection method for reducing cast steel part defect processing and appearing |
| CN111220047A (en) * | 2020-03-26 | 2020-06-02 | 常州机电职业技术学院 | Compact twist drill detection device |
| CN112461851A (en) * | 2020-11-24 | 2021-03-09 | 国电锅炉压力容器检验有限公司 | Defect eliminating and detecting method for weld surface cracks |
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| JPS59226853A (en) * | 1983-06-07 | 1984-12-20 | Daido Steel Co Ltd | Flaw detecting method in steel by fluorescent magnetic powder |
| CN2837840Y (en) * | 2005-05-30 | 2006-11-15 | 张玉英 | Drilling rod classification calibrating tube |
| CN101086202A (en) * | 2007-07-16 | 2007-12-12 | 安东石油技术（集团）有限公司 | On-service petroleum drill pipe detection and classification evaluation method |
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| JPS59226853A (en) * | 1983-06-07 | 1984-12-20 | Daido Steel Co Ltd | Flaw detecting method in steel by fluorescent magnetic powder |
| CN2837840Y (en) * | 2005-05-30 | 2006-11-15 | 张玉英 | Drilling rod classification calibrating tube |
| CN101086202A (en) * | 2007-07-16 | 2007-12-12 | 安东石油技术（集团）有限公司 | On-service petroleum drill pipe detection and classification evaluation method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807835A (en) * | 2015-04-09 | 2015-07-29 | 常州大学 | Non-destructive testing equipment for oil and gas pipelines |
| CN108131568A (en) * | 2017-12-21 | 2018-06-08 | 常州大学 | A kind of artificial intelligence recognition methods of pipeline non-destructive testing |
| CN108131568B (en) * | 2017-12-21 | 2019-06-04 | 常州大学 | A kind of artificial intelligence recognition methods of pipeline non-destructive testing |
| CN109298067A (en) * | 2018-03-23 | 2019-02-01 | 上海宏钢电站设备铸锻有限公司 | A kind of lossless detection method for reducing cast steel part defect processing and appearing |
| CN111220047A (en) * | 2020-03-26 | 2020-06-02 | 常州机电职业技术学院 | Compact twist drill detection device |
| CN111220047B (en) * | 2020-03-26 | 2021-06-18 | 常州机电职业技术学院 | Compact twist drill detection device |
| CN112461851A (en) * | 2020-11-24 | 2021-03-09 | 国电锅炉压力容器检验有限公司 | Defect eliminating and detecting method for weld surface cracks |
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Application publication date: 20140910 |