Study on Fatigue of Tubing Joint Thread Induced by Vibration in HTHP Ultradeep WellsSource: Journal of Pressure Vessel Technology:;2020:;volume( 142 ):;issue: 003DOI: 10.1115/1.4046215Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: According to the tubing string failure statistics in the oilfield, fatigue crack of tubing joint thread in high temperature high pressure (HTHP) ultradeep gas wells remains a problem because it can cause tubing strength degradation, tubing fracture failure, well workover, and even well abandonment. In order to obtain a better understanding of tubing thread fatigue and quantify the fatigue life of tubing joint thread in HTHP ultradeep wells, experimental study, elastic–plastic mechanical simulation, and multi-axial fatigue calculation are carried out in this paper. Based on the similarity theory, the vibration mechanical testing device of the tubing string is designed, and the multi-axial load of the tubing joint thread in the actual working condition is obtained. Meanwhile, tubing joint BX1 thread model is established with ansys software, and the stress distribution of tubing joint thread is analyzed on the boundary condition acquired from experiments of vibration test of tubing string. Finally, according to the multi-axial fatigue theory, the fatigue life prediction value of the tubing thread made of Super 13Cr110 and Super 15Cr125 is compared and analyzed. The work presented in this paper can provide theoretical method and technological basis for the study on the frequent failure mechanism of tubing joint thread in HTHP ultradeep gas wells.
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| contributor author | Mou, Yisheng | |
| contributor author | Lian, Zhanghua | |
| contributor author | Lin, Tiejun | |
| contributor author | Zhang, Qiang | |
| contributor author | Liu, Yang | |
| date accessioned | 2022-02-04T14:35:14Z | |
| date available | 2022-02-04T14:35:14Z | |
| date copyright | 2020/03/18/ | |
| date issued | 2020 | |
| identifier issn | 0094-9930 | |
| identifier other | pvt_142_03_031502.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4273968 | |
| description abstract | According to the tubing string failure statistics in the oilfield, fatigue crack of tubing joint thread in high temperature high pressure (HTHP) ultradeep gas wells remains a problem because it can cause tubing strength degradation, tubing fracture failure, well workover, and even well abandonment. In order to obtain a better understanding of tubing thread fatigue and quantify the fatigue life of tubing joint thread in HTHP ultradeep wells, experimental study, elastic–plastic mechanical simulation, and multi-axial fatigue calculation are carried out in this paper. Based on the similarity theory, the vibration mechanical testing device of the tubing string is designed, and the multi-axial load of the tubing joint thread in the actual working condition is obtained. Meanwhile, tubing joint BX1 thread model is established with ansys software, and the stress distribution of tubing joint thread is analyzed on the boundary condition acquired from experiments of vibration test of tubing string. Finally, according to the multi-axial fatigue theory, the fatigue life prediction value of the tubing thread made of Super 13Cr110 and Super 15Cr125 is compared and analyzed. The work presented in this paper can provide theoretical method and technological basis for the study on the frequent failure mechanism of tubing joint thread in HTHP ultradeep gas wells. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Study on Fatigue of Tubing Joint Thread Induced by Vibration in HTHP Ultradeep Wells | |
| type | Journal Paper | |
| journal volume | 142 | |
| journal issue | 3 | |
| journal title | Journal of Pressure Vessel Technology | |
| identifier doi | 10.1115/1.4046215 | |
| page | 31502 | |
| tree | Journal of Pressure Vessel Technology:;2020:;volume( 142 ):;issue: 003 | |
| contenttype | Fulltext |