Lithological Interface Detection Using an Impact Source
Joint Authors
Fang, Pan
Qiao, Wei
Jian, Xu
Li, Gao
Yang, Xu
Li, Hongtao
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-11
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Early detection of abnormal geological targets during drilling can enhance the safety of petroleum drilling.
An impact source equipped with the advantage of long detection distances can recognize lithological interfaces.
However, coda waves in the vibration waveform are significant to reflected waves, which are difficult to recognize in the time domain.
This paper presents the design of an impact source that includes a hammer, impacted metal, Teflon, and a metal base.
With the length and diameter of Teflon kept constant, the effect of the hammer, impacted metal, and metal base on the coda waves was experimentally investigated.
According to the preferred metal materials, the effect of the length and diameter of Teflon on coda waves was also experimentally studied.
A distance measurement experiment was implemented on 1.2 m sandstone on the basis of the preferred impact source design.
The experimental results show that the coda waves are significantly attenuated by the preferred impact source.
Moreover, the reflected waves are clearly identified in the time domain.
Therefore, the preferred impact source can be used effectively in lithological interface detection.
American Psychological Association (APA)
Jian, Xu& Li, Hongtao& Li, Gao& Fang, Pan& Yang, Xu& Qiao, Wei. 2020. Lithological Interface Detection Using an Impact Source. Shock and Vibration،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1209904
Modern Language Association (MLA)
Jian, Xu…[et al.]. Lithological Interface Detection Using an Impact Source. Shock and Vibration No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1209904
American Medical Association (AMA)
Jian, Xu& Li, Hongtao& Li, Gao& Fang, Pan& Yang, Xu& Qiao, Wei. Lithological Interface Detection Using an Impact Source. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1209904
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1209904