Wellbore stability when using the isotropic model and VTI-anisotropy for the Upper Jurassic deposits of the Western Siberia
UDC: 622.276.1/.4(571.1)
DOI: 10.33285/2413-5011-2022-12(372)-42-50
Authors:
SPIRINA ANASTASIYA M.1,
CHEREPANOV EVGENIY A.
1,2,
KUZNETSOV SERGEY L.1
1 LUKOIL-Engineering Limited KogalymNIPIneft Branch Office in Tyumen, Tumen, Russia
2 Tyumen Industrial University
Keywords: geomechanics, wellbore stability, well geophysical seismic survey methods (GIS), anisotropy, core
Annotation:
The article considers two methods for estimating the parameters of 1D geomechanical models of the Galyanovskoye field. The 1D geomechanical models building was based on the information obtained while drilling wells together with laboratory studies and tests from neighboring fields. Compressive and tensile stresses, internal friction angles were determined by the core data and theoretical dependencies. The minimum and maximum horizontal stresses were determined for isotropic and VTI-anisotropic media. The 1D model was used to determine the failure mechanisms and evaluation of the safe interval of drilling mud density.
Bibliography:
1. Otchet "Materialy k operativnomu podschetu zapasov nefti i rastvorennogo gaza na novykh mestorozhdeniyakh OAO "RITEK", otkrytykh po rezul’tatam poiskovogo bureniya, i pereschet zapasov po rezul’tatam razvedochnogo bureniya na mestorozhdeniyakh, chislyashchikhsya na Gosbalanse". Galyanovskoe mestorozhdenie (plast YuK0-1) / V.I. Matveeva // Filial OOO "LUKOIL–Inzhiniring" "VolgogradNIPImorneft’" v g. Volgograde. – Volgograd, 2015. – 85 s.
2. Otchet "Provedenie kompleksnykh geomekhanicheskikh issledovaniy kernovogo materiala skvazhin 3034, 3030 i korrektirovka 3D geomekhanicheskoy modeli razreza Sredne-Nazymskogo mestorozhdeniya v rayone proektnykh skvazhin № 103 i 104 / Yu.A. Kashnikov // Permskiy natsional’nyy issledovatel’skiy politekhnicheskiy universitet. – Perm’, 2018. – 467 s.
3. Otchet "Provedenie opytno-promyshlennykh rabot po optimizatsii dizayna GRP s postroeniem i aktualizatsiey 1D geomekhanicheskoy modeli Sredne-Nazymskogo i Galyanovskogo mestorozhdeniy dlya tseley GRP" / A.A. Krasnikov // OOO "GeoNavTekh", Tyumen’, 2021. – 33 s.
4. Otchet "Raschet ustoychivosti stvola skvazhiny 100G Sredne-Nazymskogo mestorozhdeniya" / R. Melikhov // "Shlyumberzhe Lodzhelko Ink". – M., 2013. – 33 s.
5. Baklashov I.V. Geomekhanika: ucheb. dlya vuzov. V 2 t. T. 1. Osnovy geomekhaniki. – M.: Izd-vo Mosk. gos. gornogo un-ta, 2004. – 208 s.
6. Kashnikov Yu.A., Ashikhmin S.G. Mekhanika gornykh porod pri razrabotke mestorozhdeniy uglevodorodnogo syr’ya: ucheb. posobie. – M.: Gornaya kniga, 2019. – 552 s.
7. Mambetov Sh.A. Geomekhanika: uchebnik v 2 t. T. 1. Osnovy geomekhaniki. – Bishkek: Izd-vo KRSU, 2013. – 138 s.
Back to issue