KOVBASIUK, I. M.; MARTSYNKIV, O. B.; MARTSYNKIV, B. O. CAUSES OF POOR QUALITY CASING OF DIRECTIONAL WELLS AT THE DRILLING DEPARTMENT «UKRBURGAZ» AND METODS FOR THEIR ELIMINATION. Oil and Gas Power Engineering, [S. l.], n. 1(31), p. 26-35, 2019. DOI: 10.31471/1993-9868-2019-1(31)-26-35. Disponível em: http://nge.nung.edu.ua/index.php/nge/article/view/487. Acesso em: 21 sep. 2020.