Peculiarities of drilling and sampling during exploration of phosphorite-bearing deposits of Estonian SSR
Authors:
Abstract
Drilling for phosphorite exploration in the ESSR is characterized by the lack of a reliable method for obtaining cores of shell sandstones composing the phosphorite-bearing strata. A typical geologic section of Estonian phosphate deposits is as follows ...
Область исследования:
(Archived) Without section
References
- Amelin B.A., Vasiliev V.D., Glinsky E.S. New methods of non-metallic fastening of boreholes. L., Nedra, 1964.
- Kudryashov B.B., Chistyakov V.K. Principles of Calculation of Drilling Parameters with Simultaneous Freezing of Passable Rocks. Journal of Mining Institute, 1969, vol. 57, iss. 2.
- Vorotintsev V.T. Double Core Pipes. Ugletekhizdat, 1953.
Similar articles
New in the technology of drilling wells at alluvial deposits
1976 I. S. Afanasiev, D. I. Beresneva, V. I. Ryzhov
Investigation of workability of experimental single-layer diamond drill bits during drilling with air blowing.
1976 L. K. Gorshkov, Yu. E. Budyukov
Nature of air inclusions in the Antarctic ice sheet (based on the results of ice core research)
1976 V. G. Portnov
Marine sampler MP-1 for exploration and prospecting works
1976 I. G. Shelkovnikov, G. I. Morozov, A. V. Lukoshkov