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Information × Registration Number 0221U104900, 0120U104404 , R & D reports Title Preparation of an expert opinion on the circumstances of occurrence and course of liquidation of a technological incident (accident) dated 17.08.2020 with a drill string during the construction of well №77 of the Semirenkiv‘s field popup.stage_title Head Chudyk Ihor I., Доктор технічних наук Registration Date 26-04-2021 Organization Ivano-Frankivsk National University of Oil and Gas popup.description2 Well № 77 of the Semirenkivsk`s field belongs to the super-deep wells of high complexity. The well is inclined and directed with a significant deviation from the vertical and a large length of the open shaft. The trunk at the site of the technological incident is complicated by gutters and caverns. The section is represented by thin-layered, compacted rocks, the drilling of which required additional loads on the bit and the layout of the bottom of the drill string . At the time of the accident, the broken threaded joints were in the intervals of the most intense set of curvature, which, both individually and in combination with the above factors, indirectly affected the increase in loads at critical points and contributed to the conditions that led to breakage.  Product Description popup.authors Kryzhanivskyy Yevstakhiy I Mykhailiuk Vasyl V Tershak Bohdan A Chudyk Ihor I popup.nrat_date 2021-04-26 Close