Research on Accurate Detection Algorithm for the Cross-Section of Shale Gas Casing Deformation Pipe String Based on Laser Ranging

Under shear and non-uniform loads, the deformation of the section shape of a casing results in an irregular section, and the spatial continuity is poor. The change in the distance between the wall of the casing before and after stress is recorded to analyze the deformation of the casing, and the dis...

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Veröffentlicht in:Processes Jg. 12; H. 7; S. 1435
Hauptverfasser: Yang, Shangyu, Mou, Yisheng, Cao, Jing, Yan, Yan
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Basel MDPI AG 01.07.2024
Schlagworte:
Accuracy
Algorithms
Analysis
Data collection
Deformation
Deformation analysis
Deformation effects
Deformation mechanisms
Eccentricity
Error analysis
Error correction
Error detection
Laser ranging
Lasers
Morphology
Performance evaluation
Pipes
Sensors
Shale
Shale gas
Shale oils
Spline functions
Strings
ISSN:2227-9717, 2227-9717
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Abstract Under shear and non-uniform loads, the deformation of the section shape of a casing results in an irregular section, and the spatial continuity is poor. The change in the distance between the wall of the casing before and after stress is recorded to analyze the deformation of the casing, and the distance value is taken as the key characteristic of the casing. A large number of the key characteristic values of shale gas casing deformation can be obtained by using the circular traversal detection method. At the same time, this article focuses on the center deviation between the laser sensor axis and the pipe string axis, as well as on the disturbance problem during measurement. An eccentricity error correction algorithm is derived to correct the eccentricity error that occurs during the detection process, and then we use interpolation algorithms to draw cubic spline curves to improve detection accuracy. The test results show that the algorithm can effectively eliminate eccentricity errors in measurement and achieve the accurate measurement of deformation casing characteristic values, which can provide basic data for the study of a shale gas casing deformation mechanism.
AbstractList Under shear and non-uniform loads, the deformation of the section shape of a casing results in an irregular section, and the spatial continuity is poor. The change in the distance between the wall of the casing before and after stress is recorded to analyze the deformation of the casing, and the distance value is taken as the key characteristic of the casing. A large number of the key characteristic values of shale gas casing deformation can be obtained by using the circular traversal detection method. At the same time, this article focuses on the center deviation between the laser sensor axis and the pipe string axis, as well as on the disturbance problem during measurement. An eccentricity error correction algorithm is derived to correct the eccentricity error that occurs during the detection process, and then we use interpolation algorithms to draw cubic spline curves to improve detection accuracy. The test results show that the algorithm can effectively eliminate eccentricity errors in measurement and achieve the accurate measurement of deformation casing characteristic values, which can provide basic data for the study of a shale gas casing deformation mechanism.
Audience Academic
Author Yang, Shangyu
Yan, Yan
Mou, Yisheng
Cao, Jing
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Snippet Under shear and non-uniform loads, the deformation of the section shape of a casing results in an irregular section, and the spatial continuity is poor. The...
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StartPage 1435
SubjectTerms Accuracy
Algorithms
Analysis
Data collection
Deformation
Deformation analysis
Deformation effects
Deformation mechanisms
Eccentricity
Error analysis
Error correction
Error detection
Laser ranging
Lasers
Morphology
Performance evaluation
Pipes
Sensors
Shale
Shale gas
Shale oils
Spline functions
Strings
Title Research on Accurate Detection Algorithm for the Cross-Section of Shale Gas Casing Deformation Pipe String Based on Laser Ranging
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