THE PROBLEM OF ENSURING THE WELLBORE STABILITY DURING DRILLING WELL AT OFFSHORE FIELDS JV VIETSOVPETRO
Pham, Van Hieu – postgraduate student, Gubkin Russian State University of Oil and Gas (National Research University), drilling toolpusher of Drilling and Workover Division, JV Vietsovpetro, hieupv.dr@vietsov.com.vn hieupv.dr@vietsov.com.vn
Emilyanov, Yura E. – deputy chief engineer of Drilling and workover Division, Joint Venture Vietsovpetro, emeliyanov.dr@vietsov.com.vn emeliyanov.dr@vietsov.com.vn
Oganov, Alexander S. – Dr.Tech.Science, professor, Head of the Department of Oil and Gas Wells Drilling, Gubkin Russian State University of Oil and Gas (National Research University), abprus@mail.ru abprus@mail.ru
Bui, Trong Toan – drilling engineer, Technology and Workover Department, Joint Venture Vietsovpetro, hieupv.dr@vietsov.com.vn hieupv.dr@vietsov.com.vn
УДК 622.24
Key words: drilling problem, accident, wellbore instability, mechanical properties of rock, inelastic deformation zone, swell speed of wellbore.
This article focuses on the condition of wellbore instablility while drilling well at Vietsovpetro’s offshore fields. The statistic and analysis of the wellbore stability time from moment opening the formation by drilling was revealed. Wellbore’s swelling speed in the Lower Miocene Field «White Tiger» was calculated. A comparison of the result analysis material by field report with calculation result is presented. In addition, the evaluation material of wellbore stability time by using the different drilling technology’s are shown.
THE PROBLEM OF ENSURING THE WELLBORE STABILITY DURING DRILLING WELL AT OFFSHORE FIELDS JV VIETSOVPETRO
Pham, Van Hieu – postgraduate student, Gubkin Russian State University of Oil and Gas (National Research University), drilling toolpusher of Drilling and Workover Division, JV Vietsovpetro, hieupv.dr@vietsov.com.vn
Emilyanov, Yura E. – deputy chief engineer of Drilling and workover Division, Joint Venture Vietsovpetro, emeliyanov.dr@vietsov.com.vn
Oganov, Alexander S. – Dr.Tech.Science, professor, Head of the Department of Oil and Gas Wells Drilling, Gubkin Russian State University of Oil and Gas (National Research University), abprus@mail.ru
Bui, Trong Toan – drilling engineer, Technology and Workover Department, Joint Venture Vietsovpetro, hieupv.dr@vietsov.com.vn
Key words: drilling problem, accident, wellbore instability, mechanical properties of rock, inelastic deformation zone, swell speed of wellbore.
This article focuses on the condition of wellbore instablility while drilling well at Vietsovpetro’s offshore fields. The statistic and analysis of the wellbore stability time from moment opening the formation by drilling was revealed. Wellbore’s swelling speed in the Lower Miocene Field «White Tiger» was calculated. A comparison of the result analysis material by field report with calculation result is presented. In addition, the evaluation material of wellbore stability time by using the different drilling technology’s are shown.
