Uniform Circular-Array-Based Borehole Pulsed Eddy-Current System for Asymmetry Defect Inspection in Downhole Casings
The inspection of wellbore casings has been extensively investigated owing to the increasing concern for safety in oil and gas production. However, efficient techniques for inspecting asymmetry defects have not been achieved. In this study, we developed a uniform circular array (UCA) to address the...
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| Format: | Article |
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MDPI AG
2022-06-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/11/13/2030 |
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| author | Ling Yang Bo Dang Zhiping Ren Changzan Liu Jingxin Dang Yang Zhao Baixin An Ruirong Dang |
| author_facet | Ling Yang Bo Dang Zhiping Ren Changzan Liu Jingxin Dang Yang Zhao Baixin An Ruirong Dang |
| author_sort | Ling Yang |
| collection | DOAJ |
| description | The inspection of wellbore casings has been extensively investigated owing to the increasing concern for safety in oil and gas production. However, efficient techniques for inspecting asymmetry defects have not been achieved. In this study, we developed a uniform circular array (UCA) to address the problem of borehole pulsed eddy current (PEC) techniques for asymmetry defect inspection in downhole casings. Based on the borehole PEC system model, the UCA developed with multiple independent probes was designed to achieve asymmetry defect inspection, and the three-dimensional magnetic field data of borehole depths, circumferential azimuths, and sampling times could be obtained. Furthermore, a multichannel data acquisition circuit, which guarantees downhole operation at 150 °C, was developed for the synthesized UCA. Using azimuth dimension information from the synthesized UCA at a certain borehole depth, we obtained an inspection approach for the width and penetration depth of asymmetry defects in the circumferential and radial directions, respectively. Simulations and field experiments were conducted, and the results demonstrate the effectiveness of the proposed method in inspecting asymmetry defects. |
| first_indexed | 2024-03-09T21:59:12Z |
| format | Article |
| id | doaj.art-01341e06417f4cb7a92ddb8101d5f297 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-09T21:59:12Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-01341e06417f4cb7a92ddb8101d5f2972023-11-23T19:51:44ZengMDPI AGElectronics2079-92922022-06-011113203010.3390/electronics11132030Uniform Circular-Array-Based Borehole Pulsed Eddy-Current System for Asymmetry Defect Inspection in Downhole CasingsLing Yang0Bo Dang1Zhiping Ren2Changzan Liu3Jingxin Dang4Yang Zhao5Baixin An6Ruirong Dang7Shaanxi Key Laboratory of Measurement and Control Technology for Oil and Gas Wells, Xi’an Shiyou University, Xi’an 710065, ChinaShaanxi Key Laboratory of Measurement and Control Technology for Oil and Gas Wells, Xi’an Shiyou University, Xi’an 710065, ChinaShaanxi Key Laboratory of Measurement and Control Technology for Oil and Gas Wells, Xi’an Shiyou University, Xi’an 710065, ChinaShaanxi Key Laboratory of Measurement and Control Technology for Oil and Gas Wells, Xi’an Shiyou University, Xi’an 710065, ChinaSchool of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, ChinaShaanxi Key Laboratory of Measurement and Control Technology for Oil and Gas Wells, Xi’an Shiyou University, Xi’an 710065, ChinaShengli Oilfield Company, SINOPEC, Dongying 257000, ChinaShaanxi Key Laboratory of Measurement and Control Technology for Oil and Gas Wells, Xi’an Shiyou University, Xi’an 710065, ChinaThe inspection of wellbore casings has been extensively investigated owing to the increasing concern for safety in oil and gas production. However, efficient techniques for inspecting asymmetry defects have not been achieved. In this study, we developed a uniform circular array (UCA) to address the problem of borehole pulsed eddy current (PEC) techniques for asymmetry defect inspection in downhole casings. Based on the borehole PEC system model, the UCA developed with multiple independent probes was designed to achieve asymmetry defect inspection, and the three-dimensional magnetic field data of borehole depths, circumferential azimuths, and sampling times could be obtained. Furthermore, a multichannel data acquisition circuit, which guarantees downhole operation at 150 °C, was developed for the synthesized UCA. Using azimuth dimension information from the synthesized UCA at a certain borehole depth, we obtained an inspection approach for the width and penetration depth of asymmetry defects in the circumferential and radial directions, respectively. Simulations and field experiments were conducted, and the results demonstrate the effectiveness of the proposed method in inspecting asymmetry defects.https://www.mdpi.com/2079-9292/11/13/2030asymmetry defect inspectionboreholepulsed eddy currentuniform circular array |
| spellingShingle | Ling Yang Bo Dang Zhiping Ren Changzan Liu Jingxin Dang Yang Zhao Baixin An Ruirong Dang Uniform Circular-Array-Based Borehole Pulsed Eddy-Current System for Asymmetry Defect Inspection in Downhole Casings Electronics asymmetry defect inspection borehole pulsed eddy current uniform circular array |
| title | Uniform Circular-Array-Based Borehole Pulsed Eddy-Current System for Asymmetry Defect Inspection in Downhole Casings |
| title_full | Uniform Circular-Array-Based Borehole Pulsed Eddy-Current System for Asymmetry Defect Inspection in Downhole Casings |
| title_fullStr | Uniform Circular-Array-Based Borehole Pulsed Eddy-Current System for Asymmetry Defect Inspection in Downhole Casings |
| title_full_unstemmed | Uniform Circular-Array-Based Borehole Pulsed Eddy-Current System for Asymmetry Defect Inspection in Downhole Casings |
| title_short | Uniform Circular-Array-Based Borehole Pulsed Eddy-Current System for Asymmetry Defect Inspection in Downhole Casings |
| title_sort | uniform circular array based borehole pulsed eddy current system for asymmetry defect inspection in downhole casings |
| topic | asymmetry defect inspection borehole pulsed eddy current uniform circular array |
| url | https://www.mdpi.com/2079-9292/11/13/2030 |
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