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Editorial Board       p-ISSN 2308-4944 (print)       e-ISSN 2409-0085 (online)
SOI: 1.1/TAS         DOI: 10.15863/TAS

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ISJ Theoretical & Applied Science 06(122) 2023

Philadelphia, USA

* Scientific Article * Impact Factor 6.630

Deryaev, A. R.

Accrual of contingent depreciation and classification drill pipes.

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Language: English

Citation: Deryaev, A. R. (2023). Accrual of contingent depreciation and classification drill pipes. ISJ Theoretical & Applied Science, 06 (122), 1-7. Soi: Doi:

Pages: 1-7

Published: 30.06.2023

Abstract: the article analyzes the accrual of wear and classification of drill pipes, as well as calculations of the amount of conditional wear to be accrued taking into account the increase in pipe wear as the depth of the well increases. For the calculation of conditional depreciation, the norms of conditional depreciation given in the "Handbook of Enlarged Estimated Norms" were used, and the depreciation rates were used in the "Price List of district prices for the construction of oil and gas wells". Partial control of drill pipes on the drilling rig is effective in eliminating most of the potential sources of accidents from the drill string. If the share of accidents occurring in the controlled area is small, then partial control will not have a noticeable effect. After the elimination of seizures or accidents, it is necessary to conduct an extraordinary inspection of the drill string. This work can be used to perform the tasks set when drilling wells and to avoid accidents and complications associated with drill pipes in order to successfully drill to the design depth in extremely difficult mining and geological conditions at abnormally high reservoir pressures.

Key words: drilling coefficient, flaw detection, defect, wear, cavities, tightening, vibration, marking, class, thread, drill string, curvature, hole.








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