«Geology, geophysics and development of oil and gas fields»

The experience of using microimages for sedimentological analysis of carbonate sections (Upper-Devonian-Carboniferous deposits of Bashkortostan)

UDC: 553.98(470.57)
DOI: -

Authors:

¹ RN-BashNIPIneft LLC, Ufa, Russia
² Bashneft-PETROTEST LLC, Ufa, Russia

Keywords: microimagers, sedimentology, carbonate rocks

Annotation:

The authors of the article demonstrates examples of sedimentological study of wells carbonate sections using the data from electrical microimagers, which allow for texture analysis, determination of the shape and size of inclusions, recording of breaks in sedimentation, etc. Sedimentological interpretation of images in combination with other methods was carried out by joint efforts of a lithological and a petrophysical specialists. In breccias and clastic limestones, the size, sorting, roundness of fragments, mineralogical composition and percentage ratio of fragments and filler, etc. are determined. For layered rocks, the types and scales of layering, deformation interlayers of clastic rocks and bioturbation intervals are determined. Examples of combining the results of sludge research and image analysis are shown. A variant of graphical display of the results of microimagers sedimentological interpretation is proposed.

Bibliography:

1. Moskvichev A.R. Modelirovanie strukturnykh elementov geologicheskikh razrezov s pomoshch’yu elektricheskogo mikroskanera Kar-Sar Ms-D // Molodoy uchenyy. – 2022. – № 45(440). – S. 249–255.
2. Mirnov R.V., Bakirov R.D., Minkaev V.N. Osobennosti geologicheskogo stroeniya Bashkirskogo i Yuzhno-Tatarskogo paleoshel’fov, opredelivshie zakonomernosti rasprostraneniya flyuidouporov v verkhnedevonskoy karbonatnoy tolshche // Neft. khoz-vo. – 2021. – № 6. – S. 32–37. – DOI: 10.24887/0028-2448-2021-6-32-37
3. Perspektivy neftegazonosnosti turneyskogo karbonatnogo klinoformnogo kompleksa Mukhanovo-Erokhovskogo progiba / V.A. Shakirov, A.P. Vilesov, V.N. Kozhin [i dr.]. // Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdeniy. – 2022. – № 5(365). – S. 5–17. – DOI: 10.33285/2413-5011-2022-5(365)-5-17
4. Zakonomernosti stroeniya i perspektivy neftegazonosnosti verkhnedevon-turneyskikh karbonatnykh i glinisto-karbonatnykh kompleksov pribortovykh zon Kamsko-Kinel’skoy sistemy progibov / N.K. Fortunatova, M.A. Bushueva, A.S. Kanev [i dr.]. // Geologiya nefti i gaza. – 2023. – № 3. – S. 59–82. – DOI: 10.41748/0016-7894-2023-3-59-82
5. Sedimentologicheskiy analiz skvazhinnykh dannykh na primere daginskogo gorizonta severo-vostochnogo shel’fa ostrova Sakhalin / V.V. Rybal’chenko, D.Ya. Khabibullin, A.Yu. Petukhov [i dr.] // Uchenye zapiski Kazanskogo un-ta. Ser.: Estestvennye nauki. – 2016. – T. 158. – № 1. – S. 55–74.
6. Lehocky N., Jonkers J. Cbm Coal Fracture Orientation In Vertical And Horizontal Wellbores From Electrical Images To Optimize Horizontal Well Placement // SPWLA: 49th Annual Logging Symposium. – Edinburgh, Scotland, UK, 2008. – 15 p.
7. Mirnov R.V., Manikin A.G. Kompleksnoe izuchenie burovogo shlama: novoe perspektivnoe napravlenie issledovaniy // Sb. nauch. trudov Mezhdunar. nauch.-praktich. konf. "Novye idei v geologii nefti i gaza. Novaya real’nost’ 2021". – M.: Izd-vo "Pero", 2021. – S. 361–364.
8. Atlas struktur i tekstur osadochnykh gornykh porod: v 3 t. Ch. 1. Oblomochnye i glinistye porody / E.V. Dmitrieva, G.I. Ershova, E.I. Oreshnikova [i dr.]. – M.: Rosgeoltekhizdat, 1962. – 724 s.
9. Antoshkina A.I. Rifoobrazovanie v paleozoe (sever Urala i sopredel’nye oblasti). – Ekaterinburg: UrO RAN, 2003. – 303 s.
10. Vilesov A.P., Chertina K.N. Paleokarst, gidrotermokarst i karstovye kollektory franskix rifov Rybkinskoy gruppy // Georesursy. – 2020. – № 22(2). – S. 15–28. – DOI: 10.18599/grs.2020.2.15-28