CN202928997U - BOP shell material acoustic emission characteristics test specimen - Google Patents
BOP shell material acoustic emission characteristics test specimen Download PDFInfo
- Publication number
- CN202928997U CN202928997U CN 201220702297 CN201220702297U CN202928997U CN 202928997 U CN202928997 U CN 202928997U CN 201220702297 CN201220702297 CN 201220702297 CN 201220702297 U CN201220702297 U CN 201220702297U CN 202928997 U CN202928997 U CN 202928997U
- Authority
- CN
- China
- Prior art keywords
- section
- test
- acoustic emission
- blowout preventer
- test specimen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 56
- 239000011257 shell material Substances 0.000 title claims 3
- 239000000463 material Substances 0.000 claims abstract description 37
- 238000004154 testing of material Methods 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000011160 research Methods 0.000 abstract description 3
- 230000002950 deficient Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012631 diagnostic technique Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a blowout preventer housing material sound emission characteristic test piece which solves the problem that a present test piece can not simulate a stress state when a blowout preventer housing material exists defects. A main body of the test piece is of a stepped shaft and is divided into three segments along an axial direction, wherein a middle segment is a material test segment and two ends are clamp clamping segments. The middle part of the material test segment is provided with circumferential notches with a V-shaped section. The V-shaped circumferential notches on the material test segment of the test piece are used for simulating a stress state when a blowout preventer housing material exists defects, which provides guarantees for further research of blowout preventer housing material sound emission characteristics and provides theory basis for on-site detection of the blowout preventer housing material.
Description
Technical field
The utility model relates to attribute testing test specimen used in a kind of acoustic emission detection field, relates to specifically a kind of with test specimen that can model configuration defect stress state.
Background technology
Preventer is the core apparatus of well-control equipment in Process of Oil Well Drilling, is used for the control well mouth pressure.Preventer in use, its inside due to be collided, the factor such as burn into wellhead pressure and prolonged and repeated pressure detection, can crack, the preventer of some new production even, because also making, the reasons such as casting, processing, thermal treatment and repair welding can have defective in the preventer housing, in the periodic inspection process, adopt ultrasound wave and ray method to be difficult to find excessive defect; The method of magnetic and infiltration all can not detect the defective of enclosure interior, and as all reprocessing, cost consumption is excessive.Acoustic emission is the Dynamic Non-Destruction Measurement diagnostic techniques of a kind of evaluating material or component damage, to utilize the interior of articles defective under external force or unrelieved stress effect, characteristics and external condition according to signal, in time understand the current state of defective, thereby judge the position of defective, process and the development trend of formation.In order to reach the purpose of acoustic emission detection rig-site utilization, must at first study the Acoustic Emission Characteristic of tested material.
In the preventer housing, there is the situation of the abrupt change of cross-section, some defective of this external thread, perforate, material surface cut and material internal etc., these places are all visual makes difform breach on structural member.Be with structural member jaggy to be subject to external load function, will stress and strain occur around breach and concentrate, and form the stress state that three-dimensional does not wait stretching, may cause the initial failure of structure.Therefore, in the Acoustic Emission Characteristic process of the test, the stress state the when test specimen that uses should be able to be simulated in the preventer housing with defectiveness.And the body surfaces of existing preventer case material Acoustic Emission Characteristic test test specimen is smooth, can not simulate and study being with defective state in case material, also just can not use by guide field.In addition, the conventional test test specimen is directly to be clamped on testing machine, there is no special clip structure on test specimen, inconvenient clamping on the one hand, clamping is also insecure on the other hand, causes the generation of the whole unbalance stress of test specimen, the inaccurate phenomenon of test findings in drawing process.
Summary of the invention
For the situation described in background technology, test specimen used when the utility model provides the test of a kind of preventer case material Acoustic Emission Characteristic.This test specimen has taken into full account the problem that has defective in the case material, for the Acoustic Emission Characteristic of research case material when having defective provides safeguard, for the Site Detection of preventer case material provides theoretical foundation.
For achieving the above object, the technical solution adopted in the utility model is: a kind of preventer case material Acoustic Emission Characteristic test test specimen, its main body is the multidiameter shape, main body is divided into three sections vertically, and its interlude is the material test section, and two ends are the fixture gripping section, each fixture gripping section is divided into clipping part and jaws anti-delinking part, wherein the clipping part is connected with the material test section, and the diameter of clipping part is greater than the diameter of material test section, and the diameter of jaws anti-delinking part is greater than the diameter of clipping part; In addition, also be provided with circumferential notch in the stage casing of material test section, the section configuration of this circumferential notch is the V font.
One of them nose circle face of preferred above-mentioned fixture gripping section is the sanding and polishing face.
The beneficial effects of the utility model: the application's test test specimen arranges V font circumferential notch, the stress state when having defective for simulation preventer housing, the Acoustic Emission Characteristic of convenient this material of research under defect condition on the material test section.In addition, one side nose circle face of the application's test specimen is processed through sanding and polishing, the calibrate AE sensor that can guarantee to be fixed on this end face is in best duty, also have plenty of, the application's test specimen two ends are provided with special-purpose clamp structure, test specimen is stressed evenly, and clamping is firm, is conducive to obtain test findings accurately.
Description of drawings
Fig. 1 is preventer case material Acoustic Emission Characteristic test test specimen structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of preventer case material Acoustic Emission Characteristic test test specimen, its main body is the multidiameter shape, main body is divided into three sections vertically, its interlude is material test section 1, two ends are fixture gripping section 2, each fixture gripping section 2 is divided into clipping part 22 and jaws anti-delinking part 21, wherein clipping part 22 is connected with material test section 1, the diameter of clipping part 22 is greater than the diameter of material test section 1, the diameter of jaws anti-delinking part 21 is greater than the diameter of clipping part 22, and in the stage casing of material test section 1, circumferential notch 11 is set, and the section configuration of this circumferential notch 11 is the V font.In addition, one of them nose circle face of fixture gripping section 2 is carried out sanding and polishing process, in order to be placed with calibrate AE sensor.
This test test specimen can be completed the acoustic emission monitor(ing) of drawing process on the stretching experiment machine, complete the Acoustic Emission Characteristic test of preventer case material, and utilizes the V-type circumferential notch on test specimen, the stress state when having defective in simulation preventer case material.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702297 CN202928997U (en) | 2012-12-18 | 2012-12-18 | BOP shell material acoustic emission characteristics test specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702297 CN202928997U (en) | 2012-12-18 | 2012-12-18 | BOP shell material acoustic emission characteristics test specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202928997U true CN202928997U (en) | 2013-05-08 |
Family
ID=48218946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220702297 Expired - Fee Related CN202928997U (en) | 2012-12-18 | 2012-12-18 | BOP shell material acoustic emission characteristics test specimen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202928997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474245A (en) * | 2020-04-26 | 2020-07-31 | 中国石油天然气集团有限公司 | Nondestructive testing method for blowout preventer |
-
2012
- 2012-12-18 CN CN 201220702297 patent/CN202928997U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474245A (en) * | 2020-04-26 | 2020-07-31 | 中国石油天然气集团有限公司 | Nondestructive testing method for blowout preventer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103674707A (en) | System and method for measuring direct tensile strength and deformation of rock | |
| CN103760008A (en) | Method for determining fracture closure stress of rock under uniaxial compression condition | |
| CN104458413A (en) | Method for determining crack initiation strength of rock under compressive conditions | |
| CN102507744A (en) | Acoustic emission device and method for detecting destructive failure of carbon fiber composite material | |
| CN105890826A (en) | Steel blade residual stress micro-magnetic nondestructive testing method and steel blade residual stress micro-magnetic nondestructive testing device based on incremental permeability | |
| CN204128679U (en) | A kind of acceleration transducer stationary installation for measuring channel vibration | |
| CN103760017A (en) | Carbon fiber reinforced composite laminate compression test clamp and test method using same | |
| CN202256264U (en) | Acoustic emission device for detecting failure of carbon fiber composite materials | |
| CN108318575B (en) | Tubular column detection probe and detection system of alternating current electromagnetic field | |
| CN105241960A (en) | Remanufactured crankshaft bending fatigue crack monitoring method, and apparatus and system thereof | |
| CN104155367A (en) | Reference block of ultrasonic flaw detection and application method thereof | |
| CN106289977B (en) | A kind of bolt concrete tensile test device and test method | |
| CN202928997U (en) | BOP shell material acoustic emission characteristics test specimen | |
| CN204067593U (en) | Wiring terminal for measuring residual stress by drilling method | |
| CN203745428U (en) | Microcrack nondestructive test device | |
| CN103344517A (en) | Testing method of evaluating erosion resistibility of road material under action of hydrodynamic pressure | |
| CN203337458U (en) | Device for observing grain changes in process of stretching metal materials | |
| CN207133127U (en) | Carbon fibre composite interlaminar shear strength tests clamping device | |
| CN204188508U (en) | Sleeve pipe pull-out force detector | |
| CN103148753B (en) | A plug gauge that detects both the through end and the no-go end of the hole at the same time | |
| CN115235874A (en) | A system and method for acoustic testing of metal pitting corrosion process | |
| CN205352833U (en) | Bolt tensile test universal fixturing | |
| CN106168472A (en) | A kind of cuboid sample lateral displacement measurement apparatus | |
| CN203519882U (en) | Optical fiber quick-splicing and testing device | |
| CN207650025U (en) | A kind of Tensile Strength of Rock split the law tester |
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 |
Granted publication date: 20130508 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |