CN202196045U - Ultrasonic flaw detection test block for drill pipe joint - Google Patents
Ultrasonic flaw detection test block for drill pipe joint Download PDFInfo
- Publication number
- CN202196045U CN202196045U CN2011202799006U CN201120279900U CN202196045U CN 202196045 U CN202196045 U CN 202196045U CN 2011202799006 U CN2011202799006 U CN 2011202799006U CN 201120279900 U CN201120279900 U CN 201120279900U CN 202196045 U CN202196045 U CN 202196045U
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- test block
- drill pipe
- face
- flat
- pipe joint
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- Expired - Fee Related
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model relates to an ultrasonic flaw detection test block for a drill pipe joint, which comprises a test block body. The test block body is a circular ring body with a gap, wherein the radius R of the external wall and the radius r of the inner bore of the circular ring body are respectively equal to the radius of the external wall and the radius of the inner bore of the drill pipe joint to be detected, a first end face and a second end face of the test block are respectively parallel to the axis of the test block, and the first end face intersects with the second end face, the first end face is provided with a flat-bottom hole, the bottom surface of the flat-bottom hole is vertical to the wall surface of the inner bore. By manufacturing a reference test block for the ultrasonic flaw detection, the defects of the internal wall existing in the internal part and the external diameter segment of the drill pipe joint can be accurately positioned, so that the missing detection or false detection is avoided. The complementation of the ultrasonic flaw detection test block for the drill pipe joint and the magnetic particle detection can realize an overall detection on the drill pipe joint.
Description
Technical field
The utility model relates to the Dynamic Non-Destruction Measurement of drill pipe sub, specifically a kind of drill pipe sub UT (Ultrasonic Testing) test block.
Background technology
Drilling rod is the steel pipe that afterbody has a chain for binding criminals line, is used to connect the rig landscape apparatus and is positioned at the drilling well bottom and bores mill equipment or bottom outlet device, is that drilling mud is transported to drill bit, and improves, reduces or rotate the bottom outlet device with drill bit.Drilling rod must be able to bear huge interior external pressure, distortion, bending and vibration.And drill pipe sub is the necessary vitals of drilling rod manufacture process, and its inherent quality and each item performance index are directly connected to the drilling rod quality, especially influence the service life of drilling rod.Therefore, the drill pipe sub quality control always is the important step that drilling rod is produced.
At present; API 5DP " drilling rod standard " standard regulation uses magnetic powder inspection that nondestructive test is carried out on the inside and outside surface of drill pipe sub; Because magnetic powder inspection can only detect the defective in surface and the nearly surperficial 1-2mm scope, can't detect the inside of drill pipe sub; In addition, for the thicker external diameter section of drill pipe sub wall thickness, the shortcoming that also can't carry out inwall detects, and therefore can't guarantee the quality of drill pipe sub comprehensively.
Summary of the invention
The utility model provides a kind of drill pipe sub UT (Ultrasonic Testing) test block to the problems referred to above, can accurately locate drill pipe sub inwall and inner defective exactly through this test block, thereby guarantee the quality of drill pipe sub comprehensively.
Technical scheme according to the utility model: a kind of drill pipe sub UT (Ultrasonic Testing) test block; Comprise the test block body; Said test block body is the torus that has breach; The radius r of said toric exterior radius R and the endoporus radius with the exterior radius of tested drill pipe sub and endoporus respectively is identical, and first end face of said test block body and second end face are parallel to the axis of said test block body respectively, and said first end face and said second end face intersect; Have flat-bottom hole on said first end face, the bottom surface of said flat-bottom hole and the wall of said endoporus are perpendicular.
The axis normal of said flat-bottom hole is in said first end face.
The outer wall of the axis of said flat-bottom hole and said test block body intersects at the A point, and the angle between the diameter of the axis of said flat-bottom hole and the said test block body of ordering through said A is β s, and this angle β s satisfies following relation: sin β s≤r/R.
Angle >=90 between said first end face and said second end face °.
The technique effect of the utility model is: the utility model is through making the reference block as UT (Ultrasonic Testing); Inner wall defect to drill pipe sub inside and the existence of external diameter section is accurately located; Prevent to cause omission or flase drop; Detect complementation through the utility model and magnetic, can carry out complete detection drill pipe sub.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the left view of Fig. 1.
Embodiment
Be further described below in conjunction with the embodiment of accompanying drawing the utility model.
Among Fig. 1, Fig. 2, comprise test block body 1, endoporus 2, first end face 3, flat-bottom hole 4, breach 5, second end face 6 etc.
Like Fig. 1, shown in Figure 2; The utility model is a kind of drill pipe sub UT (Ultrasonic Testing) test block; Comprise test block body 1, this test block body 1 is for having the torus of breach 5, and the radius r of this toric exterior radius R and endoporus 2 radius with the exterior radius of tested drill pipe sub and endoporus respectively is identical.
On first end face 3, have flat-bottom hole 4, the wall of the bottom surface of flat-bottom hole 4 and endoporus 2 is perpendicular, do not drill between the wall of flat-bottom hole 4 and the endoporus 2, and flat-bottom hole 4 is tried one's best near endoporus 2 near the wall of endoporus 2.The axis of flat-bottom hole 4 is preferably perpendicular to first end face 3, so easy processing.
The outer wall of the axis of flat-bottom hole 4 and test block body 1 intersects at the A point, and the angle between the diameter of the axis of flat-bottom hole 4 and the test block body 1 of ordering through A is β s, and this angle β s satisfies following relation: sin β s≤r/R.
Because drill pipe sub is a forging, crystal grain is thin, and flat-bottom hole 4 apertures are less, for improving detectability, therefore needs to select high-frequency probe.And head angle is: sin β=r/R.Because forging thicker; Therefore the wall thickness external diameter in joint longitudinal ultrasonic wave inspection, had both existed refracted longitudinal wave than greater than 0.22; There is simultaneously refracted shear again; Having only correct differentiation is compressional wave or shear wave at the reflection echo that probe receives, and could well confirm it is joint outer wall shortcoming or inner nosepiece wall shortcoming, and the shortcoming position is accurately located.
If will guarantee simultaneously that ultrasonic wave energy detects inner wall defect; Ultrasound wave refraction angle sin β s≤r/R then; Ultrasound wave is propagated in workpiece, if running into defective will produce reflection, the size of reflected energy is relevant with factors such as the shape of defective, direction, position, surfacenesses.Therefore if will guarantee that ultrasonic wave energy detects the test block flat-bottom hole, the optimum position of probe then is to locate in that its ultrasonic waves transmitted is vertical with flat-bottom hole.
The utility model is accurately located the inner wall defect of drill pipe sub inside and the existence of external diameter section through making the reference block as UT (Ultrasonic Testing), prevents that because the joint internal diameter is little, joint length causes omission or flase drop greatly.Can detect inside and outside joint wall greater than the dark crackle of 1.5mm through the utility model,, can carry out complete detection drill pipe sub through detecting complementaryly with magnetic.The utility model processing is simple, provides and has detected supplementary means more accurately, has satisfied the detection demand to drill pipe sub.
Claims (4)
1. drill pipe sub UT (Ultrasonic Testing) test block; Comprise test block body (1); It is characterized in that: said test block body (1) is for having the torus of breach (5); The radius r of said toric exterior radius R and endoporus (2) radius with the exterior radius of tested drill pipe sub and endoporus respectively is identical, and first end face (3) of said test block body (1) and second end face (6) are parallel to the axis of said test block body (1) respectively, and said first end face (3) intersects with said second end face (6); Have flat-bottom hole (4) on said first end face (3), the wall of the bottom surface of said flat-bottom hole (4) and said endoporus (2) is perpendicular.
2. according to the described drill pipe sub UT (Ultrasonic Testing) of claim 1 test block, it is characterized in that: the axis normal of said flat-bottom hole (4) is in said first end face (3).
3. according to claim 1 or 2 described drill pipe sub UT (Ultrasonic Testing) test blocks; It is characterized in that: the outer wall of the axis of said flat-bottom hole (4) and said test block body (1) intersects at the A point; Angle between the diameter of the axis of said flat-bottom hole (4) and the said test block body (1) of ordering through said A is β s, and this angle β s satisfies following relation: sin β s≤r/R.
4. according to the described drill pipe sub UT (Ultrasonic Testing) of claim 1 test block, it is characterized in that: angle >=90 between said first end face (3) and said second end face (6) °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202799006U CN202196045U (en) | 2011-08-03 | 2011-08-03 | Ultrasonic flaw detection test block for drill pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202799006U CN202196045U (en) | 2011-08-03 | 2011-08-03 | Ultrasonic flaw detection test block for drill pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202196045U true CN202196045U (en) | 2012-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202799006U Expired - Fee Related CN202196045U (en) | 2011-08-03 | 2011-08-03 | Ultrasonic flaw detection test block for drill pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202196045U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529129A (en) * | 2013-10-08 | 2014-01-22 | 北京理工大学 | C-shaped ring device used for fixed value calibration of tensile residual stress |
-
2011
- 2011-08-03 CN CN2011202799006U patent/CN202196045U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529129A (en) * | 2013-10-08 | 2014-01-22 | 北京理工大学 | C-shaped ring device used for fixed value calibration of tensile residual stress |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20140922 Granted publication date: 20120418 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20150322 Granted publication date: 20120418 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| 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: 20120418 Termination date: 20200803 |