{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,29]],"date-time":"2026-06-29T23:29:56Z","timestamp":1782775796943,"version":"3.54.5"},"reference-count":0,"publisher":"Dnipro University of Technology","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Min. miner. depos."],"published-print":{"date-parts":[[2025,12,30]]},"abstract":"<jats:p>Purpose. Vibrations during deep drilling may lead to detrimental energy dissipation, reduced rate of penetration, and accelerated tool wear. The objective of this study is to conduct field trials of a budget-friendly downhole vibration controller with a novel mounting assembly for installation in the bottom-hole assembly, and to assess the relationship between vibration loading levels and drilling performance indicators, as well as bit damage, quantitatively.\n\n      Methods. The methodology is based on synchronized recordings of lateral and axial root-mean-square vibrations, as well as the stick-slip index, along with drilling parameters and gamma-ray logging. Comparisons were made between two adjacent wells in the same field, spanning identical geological intervals. These comparisons were supplemented by photographic documentation and analysis of the bit condition before and after each run.\n\n      Findings. Empirical evidence was obtained demonstrating that elevated vibration levels consistently correlate with decreased mechanical rate of penetration and bit wear. In the well with elevated vibration loading, the mechanical rate of penetration was approximately 7.3 m\/h. In the adjacent well, where the dynamic regime remained within acceptable limits, it reached 11.9 m\/h \u2013 approximately 40% higher than the other well.\n\n      Originality.The originality of this work lies in combining field tests of a low-cost downhole vibration controller with a novel mounting assembly for its installation in the lower part of the drill string, together with a quantitative assessment of the relationship between vibration loading levels, drilling efficiency, and bit damage. An additional original result is the identification of indicative threshold vibration levels for timely decision-making aimed at preserving the drilling tool and optimizing the rate of penetration.\n\n      Practical implications. The feasibility of applying a budget-friendly downhole controller and the proposed mounting assembly as accessible tools for adjusting drilling parameters and making informed bit selections to prevent abnormal dynamic loading is demonstrated.<\/jats:p>","DOI":"10.33271\/mining19.04.147","type":"journal-article","created":{"date-parts":[[2025,12,30]],"date-time":"2025-12-30T18:19:27Z","timestamp":1767118767000},"page":"147-157","source":"Crossref","is-referenced-by-count":12,"title":["Threshold vibration metrics of drilling tools as indicators of bit wear and rate of penetration decline: Field trials and data interpretation"],"prefix":"10.33271","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-1086-2345","authenticated-orcid":false,"given":"Serhii","family":"Landar","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2685-8753","authenticated-orcid":false,"given":"Andrii","family":"Velychkovych","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3682-1612","authenticated-orcid":false,"given":"Vasyl","family":"Vytvytskyi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9374-2550","authenticated-orcid":false,"given":"Liubomyr","family":"Ropyak","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"18833","published-online":{"date-parts":[[2025,12,30]]},"container-title":["Mining of Mineral Deposits"],"original-title":[],"link":[{"URL":"http:\/\/mining.in.ua\/articles\/volume19_4\/15.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,12,30]],"date-time":"2025-12-30T18:19:32Z","timestamp":1767118772000},"score":1,"resource":{"primary":{"URL":"http:\/\/mining.in.ua\/2025vol19_4_15.html"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,12,30]]},"references-count":0,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2025,12,30]]},"published-print":{"date-parts":[[2025,12,30]]}},"URL":"https:\/\/doi.org\/10.33271\/mining19.04.147","relation":{},"ISSN":["2415-3435","2415-3443"],"issn-type":[{"value":"2415-3435","type":"print"},{"value":"2415-3443","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,12,30]]}}}