{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T15:31:50Z","timestamp":1781796710181,"version":"3.54.5"},"reference-count":45,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2023,4,3]],"date-time":"2023-04-03T00:00:00Z","timestamp":1680480000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan","award":["AP14869271"],"award-info":[{"award-number":["AP14869271"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Machines"],"abstract":"<jats:p>The paper is dedicated to the enhancement of Polycrystalline Diamond Bits (PDC) designed for oil and gas industry. A novel diamond-reinforced composite was applied for cutting inserts, with the addition of 4 wt% chromium diboride to the WC-Co matrix. The addition of CrB2 ensured improvement of bending strength and fracture toughness by nearly 30% and 40%, respectively, and enhanced the diamond retention force. The efficiency of PDC bits was further improved by incorporating constructional features in both bottomhole and reaming parts. An analytical relationship between the feeding speed and geometrical parameters was found, including the wings and calibrating inserts numbers, as well as the rotational speed of the cutter. Under the conditions of rock fracture by reaming inserts, the approximate value of the required power was calculated.<\/jats:p>","DOI":"10.3390\/machines11040453","type":"journal-article","created":{"date-parts":[[2023,4,4]],"date-time":"2023-04-04T02:03:00Z","timestamp":1680573780000},"page":"453","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Calculations on Enhancement of Polycrystalline Diamond Bits through Addition of Superhard Diamond-Reinforced Elements"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4707-3322","authenticated-orcid":false,"given":"Boranbay","family":"Ratov","sequence":"first","affiliation":[{"name":"Institute of Geology, Oil and Mining, K. Satbayev Kazakh National Technical University, 22a Satpaev Str., Almaty 050013, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7666-7686","authenticated-orcid":false,"given":"Miroslaw","family":"Rucki","sequence":"additional","affiliation":[{"name":"Institute of Mechanical Science, Vilnius Gediminas Technical University, Saul\u0117tekio al. 11, LT-10223 Vilnius, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1196-5268","authenticated-orcid":false,"given":"Boris","family":"Fedorov","sequence":"additional","affiliation":[{"name":"Institute of Geology, Oil and Mining, K. Satbayev Kazakh National Technical University, 22a Satpaev Str., Almaty 050013, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0521-3577","authenticated-orcid":false,"given":"Edvin","family":"Hevorkian","sequence":"additional","affiliation":[{"name":"Institute of Mechanical Science, Vilnius Gediminas Technical University, Saul\u0117tekio al. 11, LT-10223 Vilnius, Lithuania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6830-4479","authenticated-orcid":false,"given":"Zbigniew","family":"Siemiatkowski","sequence":"additional","affiliation":[{"name":"Faculty of Mechanical Engineering, Kazimierz Pulaski University of Technology and Humanities in Radom, Stasieckiego 54, 26-600 Radom, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3507-3096","authenticated-orcid":false,"given":"Samal","family":"Muratova","sequence":"additional","affiliation":[{"name":"Institute of Oil, Mining, Geology, and IT, Caspian University, Dostyk 85A, Almaty 050000, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2612-125X","authenticated-orcid":false,"given":"Elmira","family":"Omirzakova","sequence":"additional","affiliation":[{"name":"Institute of Geology, Oil and Mining, K. Satbayev Kazakh National Technical University, 22a Satpaev Str., Almaty 050013, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3997-8324","authenticated-orcid":false,"given":"Aidar","family":"Kuttybayev","sequence":"additional","affiliation":[{"name":"Institute of Geology, Oil and Mining, K. Satbayev Kazakh National Technical University, 22a Satpaev Str., Almaty 050013, Kazakhstan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vladimir","family":"Mechnik","sequence":"additional","affiliation":[{"name":"V. Bakul Institute for Superhard Materials of the Nationa Academy of Sciences of Ukraine, Avtozavodska Str. 2, 04074 Kyiv, Ukraine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nikolai","family":"Bondarenko","sequence":"additional","affiliation":[{"name":"V. Bakul Institute for Superhard Materials of the Nationa Academy of Sciences of Ukraine, Avtozavodska Str. 2, 04074 Kyiv, Ukraine"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"141","DOI":"10.1016\/j.ngib.2021.08.019","article-title":"Deep and ultra-deep oil and gas well drilling technologies: Progress and prospect","volume":"9","author":"Wang","year":"2022","journal-title":"Nat. Gas Ind. B"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"37","DOI":"10.5510\/OGP20220100626","article-title":"A study of the structure and strength properties of the WC\u2013Co drill insert with different CrB2 content sintered by vacuum hot pressing","volume":"1","author":"Ratov","year":"2022","journal-title":"SOCAR Proc."},{"key":"ref_3","unstructured":"Speight, J.G. (2015). 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