{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T11:04:11Z","timestamp":1775473451796,"version":"3.50.1"},"reference-count":22,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2025,2,27]],"date-time":"2025-02-27T00:00:00Z","timestamp":1740614400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["https:\/\/doi.org\/10.54499\/UIDB\/04708\/2020"],"award-info":[{"award-number":["https:\/\/doi.org\/10.54499\/UIDB\/04708\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["https:\/\/doi.org\/10.54499\/UIDP\/04708\/2020"],"award-info":[{"award-number":["https:\/\/doi.org\/10.54499\/UIDP\/04708\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["https:\/\/doi.org\/10.54499\/2020.00828.CEECIND\/CP1590\/CT0004"],"award-info":[{"award-number":["https:\/\/doi.org\/10.54499\/2020.00828.CEECIND\/CP1590\/CT0004"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Minerals"],"abstract":"<jats:p>Glycerin-based fluids are proposed as a promising alternative to inhibited fluids in the drilling of highly-reactive formations. However, even with the use of these fluids, it is still possible to observe the occurrence of problems related to the balling of drill bits and drill pipes, such as the agglomeration and accretion of cuttings. This study aims to analyze how the interaction between expandable minerals from reactive formations and glycerin-based drilling fluids affects the stability of oil wells, focusing on the occurrence and extent of the accretion phenomenon. For this purpose, bentonite pellets were characterized regarding their mineralogical composition and plastic behavior. In addition, accretion tests were performed in order to evaluate the interaction between bentonite pellets and glycerin-based drilling fluids containing different types of inhibitors. The results revealed that the pellets were predominantly composed of interstratified illite\u2013smectite (IS) clay minerals and presented highly plastic properties with a high degree of expansion. Furthermore, it was found that the accretion percentages were significant for all the fluids studied, at higher than 58%. Therefore, it was found that using glycerin in drilling fluids did not stabilize expandable minerals in reactive formations, even with different expansion inhibitors, which were ineffective in reducing the rock expansibility.<\/jats:p>","DOI":"10.3390\/min15030245","type":"journal-article","created":{"date-parts":[[2025,2,27]],"date-time":"2025-02-27T03:37:57Z","timestamp":1740627477000},"page":"245","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Effect of Interaction Between Expandable Minerals and Glycerin-Based Fluids on the Occurrence of Accretion"],"prefix":"10.3390","volume":"15","author":[{"given":"Ana P. O.","family":"Sousa","sequence":"first","affiliation":[{"name":"Academic Unit of Petroleum Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9515-6192","authenticated-orcid":false,"given":"M\u00e1rio C. S.","family":"Lima","sequence":"additional","affiliation":[{"name":"Academic Unit of Petroleum Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7726-5360","authenticated-orcid":false,"given":"Waleska R. P.","family":"Costa","sequence":"additional","affiliation":[{"name":"Academic Unit of Petroleum Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5340-3132","authenticated-orcid":false,"given":"Renalle C. A. M.","family":"Nascimento","sequence":"additional","affiliation":[{"name":"Academic Unit of Santo Agostinho, Rural Federal University of Pernambuco, Cabo de Santo Agostinho 54518-430, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1026-4523","authenticated-orcid":false,"given":"Jo\u00e3o M. P. Q.","family":"Delgado","sequence":"additional","affiliation":[{"name":"Institute of R&D in Sctructures and Construction (CONSTRUCT-GFC), Department of Civil and Georesources Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1691-1872","authenticated-orcid":false,"given":"Antonio G. B.","family":"Lima","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil"}]},{"given":"Luciana V.","family":"Amorim","sequence":"additional","affiliation":[{"name":"Academic Unit of Petroleum Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil"}]}],"member":"1968","published-online":{"date-parts":[[2025,2,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Frydman, M., and Fontoura, S.A.B. (2001, January 25\u201328). Modeling Aspects of Wellbore Stability in Shales. Proceedings of the SPE Latin American and Caribbean Petroleum Engineering Conference, Buenos Aires, Argentina.","DOI":"10.2523\/69529-MS"},{"key":"ref_2","unstructured":"Grim, R.E. (1968). Clay Mineralogy, McGraw-Hill. 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