CN201060097Y - Continuance pipe multi-axis combined load low-cycle fatigue tester - Google Patents
Continuance pipe multi-axis combined load low-cycle fatigue tester Download PDFInfo
- Publication number
- CN201060097Y CN201060097Y CNU2007201497360U CN200720149736U CN201060097Y CN 201060097 Y CN201060097 Y CN 201060097Y CN U2007201497360 U CNU2007201497360 U CN U2007201497360U CN 200720149736 U CN200720149736 U CN 200720149736U CN 201060097 Y CN201060097 Y CN 201060097Y
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- continuous tube
- hydraulic cylinder
- bend
- cycle fatigue
- continuous
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- Expired - Lifetime
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Abstract
The utility model relates to a continuous tube multi-shaft compound load low cycle fatigue testing device, which comprises a tensile hydraulic cylinder (2), a bend template (3), a bend distorted hydraulic cylinder (4) and a continuous tube defect measuring sensor (6), etc. A continuous tube specimen (1) is arranged in the tensile hydraulic cylinder (2). A tensile cylinder collet (5) is arranged on the tensile hydraulic cylinder (2). The continuous tube defect measuring sensor (6) is arranged on the bend template (3). The two ends of the bend distorted hydraulic cylinder (4) are provided with bend distorted displacement sensors (7). The accurate control for the bend, the extending and the internal pressure loading dynamic can be realized. The working condition that the continuous tube bears the multi-shaft compound load in the working process can be simulated. The multi-shaft compound load low cycle fatigue test of the continuous tube can be carried through to estimate the reliability of the continuous tube. The utility model is mainly applied in continuous tube producing companies or testing and estimate to forecast the low cycle fatigue of a new continuous tube in the working and to estimate the reliability of the continuous tube. The utility model can direct the safe and reliable work of the continuous tube in an oil gas field locale.
Description
Technical field
The utility model relates to continuous pipe operation field, specifically, is a kind of continuous pipe multiaxis combined load low cycle fatigue test device.
Background technology
Continuously the pipe operation compare with traditional tubing string operation have reduce significantly to unload in rig expense, the time of saving the rountrip tubing string, the elimination single heavy work, continuously neatly to the down-hole cycle working fluid, reduce formation damage, safe and reliable, advantage such as purposes is wide, have potential competitive edge, good prospects for application, now become a focus of world's oil and gas industry technical research and application.
The pipe operation process launches from continuous pipe from cylinder continuously, is lowered to oil well through guide frame, injector head, is wound on the cylinder through injector head, guide frame from oil well again.The continuous pipe of one-stop operation will experience 6 flexural deformation at least under inside and outside pressure and axial load condition.Maximum strain on each flexural deformation tube wall is all 2%～3%, and the distortion of pipe enters the plastic stage.Pipe main form with the low-cycle fatigue of multiaxis combined load under such operating mode lost efficacy continuously.The low cycle fatigue property of pipe is an influence pipe key in application factor continuously continuously.And along with continuous pipe caliber increases, the continuous expansion of its purposes and range of application, and the raising of suffered load, the low-cycle fatigue problem under the multiaxis combined load of pipe more seems most important continuously.
At present domestic to continuous pipe fatigue life prediction and corresponding assessment technology that is that all right is ripe.Though though domestic introduction is managed working rig early continuously, to it research and to use that is that all right ripe.The present domestic complete and continuous pipe production line that also do not have, the continuous pipe of domestic use mainly relies on import.The system and the device of the domestic continuous pipe that does not still detect and assess.This influence and restricted the application of continuous Manifold technology in China's oil gas field industry.Continuously pipe multiaxis combined load low cycle fatigue property test unit becomes one of bottleneck that continuous Manifold technology applies.
Summary of the invention
The purpose of this utility model is to provide a kind of continuous pipe multiaxis combined load low cycle fatigue test device in the continuous pipe operation.
The utility model is achieved in that
Comprise continuous pipe test specimen 1, stretching hydraulic cylinder 2, bending template 3, flexural deformation hydraulic cylinder 4, stretching cylinder chuck 5, continuous defective tube survey sensor 6, flexural deformation displacement transducer 7, aligning template 8, pipe test specimen 1 places in the stretching hydraulic cylinder 2 continuously, stretching hydraulic cylinder 2 is provided with stretching cylinder chuck 5, bending template 3 is provided with continuous defective tube survey sensor 6, and flexural deformation displacement transducer 7 is equipped with at the two ends of flexural deformation hydraulic cylinder 4.
The both sides of pipe test specimen 1 are equipped with bending template 3, aligning template 8 respectively continuously.
Advantage of the present utility model is:
Be bent and deformed hydraulic cylinder 4, realization loads dynamic accurately control to bending, stretching and interior pressure, can simulate continuous pipe in the multiaxis combined load operating mode that operation process bears, manage multiaxis combined load low cycle fatigue test continuously, estimate the reliability of continuous pipe.Be mainly used in continuous pipe production company or detection and evaluation, prediction is the low-cycle fatigue of pipe in operation continuously newly, estimates the reliability of continuous pipe, instructs continuous pipe in the reliable operation of oil gas field site safety.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
As shown in drawings, manage test specimen 1 continuously and can under 2 effects of stretching hydraulic cylinder, produce tensile load; By flexural deformation hydraulic cylinder 4 effect down and the alternating bending distortion that produces crooked and aligning according to the bending template 3 and the aligning template 8 of known radius by 7 monitoring of flexural deformation displacement transducer; Produce the interior pressure of continuous pipe by pipe in-draw cylinder chuck 5.And by the disabled status of the continuous pipe of continuous defective tube survey sensor 6 monitorings.
Claims (2)
1. manage multiaxis combined load low cycle fatigue test device continuously for one kind, comprise continuous pipe test specimen (1), stretching hydraulic cylinder (2), bending template (3), flexural deformation hydraulic cylinder (4), stretching cylinder chuck (5), continuous defective tube survey sensor (6), flexural deformation displacement transducer (7), aligning template (8), it is characterized in that: manage test specimen (1) continuously and place in the stretching hydraulic cylinder (2), stretching hydraulic cylinder (2) is provided with stretching cylinder chuck (5), bending template (3) is provided with continuous defective tube survey sensor (6), and flexural deformation displacement transducer (7) is equipped with at the two ends of flexural deformation hydraulic cylinder (4).
2. a kind of continuous pipe multiaxis combined load low cycle fatigue test device according to claim 1 is characterized in that: the both sides of managing test specimen (1) continuously are equipped with bending template (3), aligning template (8) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201497360U CN201060097Y (en) | 2007-06-20 | 2007-06-20 | Continuance pipe multi-axis combined load low-cycle fatigue tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201497360U CN201060097Y (en) | 2007-06-20 | 2007-06-20 | Continuance pipe multi-axis combined load low-cycle fatigue tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060097Y true CN201060097Y (en) | 2008-05-14 |
Family
ID=39408576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201497360U Expired - Lifetime CN201060097Y (en) | 2007-06-20 | 2007-06-20 | Continuance pipe multi-axis combined load low-cycle fatigue tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060097Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175136A (en) * | 2010-12-22 | 2011-09-07 | 天津大学 | Straight tube multi-axis ratchet wheel strain testing system and method |
| CN102507349A (en) * | 2011-10-21 | 2012-06-20 | 南京航空航天大学 | Micro fatigue testing machine with variable displacement control |
| CN105823629A (en) * | 2016-03-24 | 2016-08-03 | 西南石油大学 | Test device for flexible life of coiled tubing |
| CN109030253A (en) * | 2018-08-02 | 2018-12-18 | 太原理工大学 | Round steel pipe extremely low cycle fatigue experimental rig and plastic deformation acquisition method |
| CN118153244A (en) * | 2024-05-09 | 2024-06-07 | 克拉玛依宏兴石油工程技术服务股份有限公司 | Real-time early warning system and method for fatigue life of continuous pipe |
-
2007
- 2007-06-20 CN CNU2007201497360U patent/CN201060097Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175136A (en) * | 2010-12-22 | 2011-09-07 | 天津大学 | Straight tube multi-axis ratchet wheel strain testing system and method |
| CN102175136B (en) * | 2010-12-22 | 2014-06-11 | 天津大学 | Straight tube multi-axis ratchet wheel strain testing system and method |
| CN102507349A (en) * | 2011-10-21 | 2012-06-20 | 南京航空航天大学 | Micro fatigue testing machine with variable displacement control |
| CN102507349B (en) * | 2011-10-21 | 2013-06-12 | 南京航空航天大学 | Micro fatigue testing machine with variable displacement control |
| CN105823629A (en) * | 2016-03-24 | 2016-08-03 | 西南石油大学 | Test device for flexible life of coiled tubing |
| CN105823629B (en) * | 2016-03-24 | 2018-04-17 | 西南石油大学 | A kind of test device of coiled tubing flexible life |
| CN109030253A (en) * | 2018-08-02 | 2018-12-18 | 太原理工大学 | Round steel pipe extremely low cycle fatigue experimental rig and plastic deformation acquisition method |
| CN109030253B (en) * | 2018-08-02 | 2020-08-28 | 太原理工大学 | Circular steel tube ultralow-cycle fatigue test device and plastic deformation acquisition method |
| CN118153244A (en) * | 2024-05-09 | 2024-06-07 | 克拉玛依宏兴石油工程技术服务股份有限公司 | Real-time early warning system and method for fatigue life of continuous pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |