Тип публикации: статья из журнала
Год издания: 2025
Идентификатор DOI: 10.1051/epjconf/202532101010
Аннотация: <jats:p>The strength and durability of drillstrings is largely determined by bending stresses, which are calculated on the basis of the primary data of its trajectory: measured depth, inclination, azimuth. Each of these values may have some deviation from its value caused by both the error of the measuring device of the drillstringПоказать полностьюand the gradual increase in the diameter of the open hole due to friction, washing, etc. The work is aimed at establishing the effect of errors in determining the primary data of the well trajectory on the further calculation of its geometric parameters. The paper discusses typical well shapes and the effects of given trajectory parameter errors on the coordinates of its points and curvature, which are then used to calculate bending stresses used to assess the strength and durability of all elements of the drillstring. The results of calculations show that the resulting deviation of curvature in the worst case can be approximately equal to the algebraic sum of errors of the three primary trajectory parameters.</jats:p>
Журнал: EPJ Web of Conferences
Выпуск журнала: Т. 321
Номера страниц: 01010
ISSN журнала: 21016275
Место издания: Les Ulis
Издатель: EDP Sciences