Abstract
UTT (Ultrasonic Tomography Tool) is widely used in the oil industry and can be used to inspect corrosion, casing wall damage, casing breakoff, and casing distortion in the well borehole with the maximum environment temperature being 125°C, and the pressure being 60 MPa. UTT consists of tool head, upper centralization, electronic section, lower centralization, transmitters, and receivers. Its outer diameter is 4.6 cm and length is 320 cm. The measured casing diameter ranges from 60 mm to 254 mm. The tomography resolution is 512×512. The borehole measurement accuracy is 2 mm. It can supply 3D pipe tomography, including horizontal and vertical profile. This paper introduces its specification, measurement principle, and applications in oilfield.
Similar content being viewed by others
References
Liu, Q.Q., 1999. An logging tool of azimuth-wall thickness imaging.Petroleum Instrument,13(5):25–28 (in Chinese).
Lu, D.W., Xie, R.H., 2002. New Development of Well Logging and Test in Oil Filed. Oil Press, Beijing (in Chinese).
Parilla, M., Anaya, J.J., Fritsch, C., 1991. Digital signal processing for high accuracy ultrasonic range measurements.J. IEEE Transactions on Instrument and Measurement,40(4):759–763.
Sabatini, A.M., 1995. A digital signal-processing technique for compensating ultrasonic sensors.IEEE Transactions on Instrument and Measurement,44(4):869–874.
Wang, Y.G., 1989. The precision measurement theory of ultrasonic wave speed and its application.Chinese Sound Technology,8(2):18–23 (in Chinese).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Xing-fu, Z., Ying-xiang, W., Dong-hui, L. et al. Ultrasonic tomography and its applications in oilfield. J. Zhejiang Univ. Sci. A 6, 1420–1423 (2005). https://doi.org/10.1631/jzus.2005.A1420
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1631/jzus.2005.A1420