苏联发展钻探机械制造业初期，岩心钻探用的工具、套管及钻管的主要尺寸列于表1。然而，由于广泛推行钻粒钻进，便产生了修改原有标准的必要。现行岩心钻探的套管及钻管规格系采用1946年标准（表2）。新标准增加了整套管子直径间的空隙和管壁厚度，大大改善了使用质量，特别是起下套管的条件。自从改用现行地质勘探的工具规格以来，已过了 In the early days of the Soviet Union’s drilling and drilling machinery manufacturing industry, the major dimensions of core drilling tools, casing and drill pipe are listed in Table 1. However, due to the widespread implementation of drilling, a need has arisen for modifying the original standards. Current core drilling casing and pipe specifications used in the 1946 standard (Table 2). The new standard increases the clearance between the entire pipe diameter and the wall thickness, greatly improving the quality of use, especially under the conditions of the casing. The concept of tools for current geological exploration has been changed since it was adopted