Method of accounting taking into account for the correction for the variability of the sound velocity during sonar at sounding survey of technical wells
Authors:
Abstract
In the process of drilling and supporting technical wells of large diameter (1.0‑3.6 m) there are a number of technical problems, the solution of which is possible only if the geometry and dimensions of the borehole (curvature of the axis, the size of wall enlargement, etc.), as well as the position of the support during its construction are known. Wells are drilled vertically up to 1000 m deep. Drilling is carried out with the use of a flushing fluid, for which a clay solution with a specific gravity of up to 1.25 g/cm² depending on the strength of the rocks is used.
Область исследования:
(Archived) Without section
Funding:
None
References
- Aranovich V. B. et al. Technical errors of sounding measurements in surveying works. Zapiski Gornogo Instituta, vol. XLVI, iss. 2, 1963.
- Bergman L. Ultrasound. IL, 1957.
- Leibenzon B. I. Control of verticality of mine shafts by ultrasonic locating method. Shakhtnoe stroitelstvo, No. 4, 1965.
- Tyurin A. M., Stashkevich A. P., Taranov E. S. Fundamentals of Hydroacoustics. Sudostroenie, 1966.
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