Application of Fullbore FormationMicro Imager in recognition of the sedimentary facies, features and diagenetic processes Dalan Formation in south of Iran

Document Type : مقالات پژوهشی

Authors

• Maryam Mansouri Hafshejani
• Hossain Rahimpour-Bonab
• Vahid Tavakoli

University of Tehran

10.22067/sed.facies.v7i2.32961

Abstract

Primary sedimentary and secondary structural and diagenetic processes are responsible for heterogeneity in carbonate reservoirs and recognition of these factors is very essential subject in modeling these reservoirs. Image logs are very useful for identification of structures and small scale sedimentary features. In this research, using image analysis of Formation Microimager log (FMI) in a drilled well in Dalan Formation, 7 patterns including: 1- band pattern, 2- spot pattern, 3- fracture pattern, 4- drilling induced fracture, 5- cross bedding pattern, 6- block pattern and 7- stylolite pattern are proposed. These patterns were compared with thin sections and core samples. Finally, with combining the FMI results, analyzed by JmicroVision (v. 1.27) software, with thin sections and core samples of the different facies used to separate the grain supported from mud supported facies. Also among the various diagenetic processes, pressure solution, nodular anhydrite, bioturbation and dissolution were identified in image logs. This study shows that in most cases there is a good synchrony between the results of image logs, thin sections, core samples and well logs.

Keywords

• Dalan Formation
• Fullbore Formation Micro Imager (FMI)
• sedimentary facies
• sedimentary environment
• Sedimentary structure
• diagenetic processes

---

References

Alsharhan, A.S., & Kendall, C.G.St.C., 2003. Holocene coastal carbonates and evaporites of the southern Arabian Gulf and their ancient analogues. Earth-Science Reviews, 61: 191- 243.

Buxton, M.W.N., & M.H. Pedley., 1989. A standardized model for Tethyan carbonates ramps. Journal of the Geological Society of London, 146: 746-748.

Campbell, C.V., 1967. Lamina, Laminaset, bed and bedset. Sedimentalogy, 8: 7-26.

Chia, H., 2009. Automatic discrimination of sedimentary facies and lithologies in reef-bank reservoirs using borehole image logs. Applied Geophysics, 6: 17-29.

Chitale, D.V., Johnson, C., Manley, H., Entzminger, D., & Canter, L., 2009. Application of Borehole Imaging to Evaluate Porosity and Permeability in Carbonate Reservoirs, Example from Permian Basin. American Association of Petroleum Geologists Bulletin, pp. 1-21.

Dunham, R.J., 1962. Classification of carbonate rocks according to depositional texture. In: Ham, W.E., (ed.), Classification of Carbonate Rocks. American Association of Petroleum Geologists Memoir,

1: 108–121.

Flugel, E., 2010. Microfacies of Carbonate Rocks, Analysis, Interpretation and Application. Springer Verlag, New York, 996p.

Insalaco, E., Virgone, A., Courme, B., Gaillot, J., Kamali, M., Moallemi, A., Lotfpour, M., & Monibi, S., 2006. Upper Dalan Member and Kangan Formation between the Zagros Mountains and offshore Fars, Iran: Depositional system, biostratigraphy and stratigraphic architecture. GeoArabia, 11: 75–176.

Khoshbakht, F., Memarian, H., & Mohammadnia, M., 2009. Comparison of Asmari, Pabdeh and Gurpi formation's fractures, derived from image log. Journal of Petroleum Science and Engineering,

67: 65- 74

Konert, G., Afifi, A.M., Al-Hajri, S.A., & Droste, H., 2001. Paleozoic stratigraphy and hydrocarbon habitat of the Arabian Plate. GeoArabia, 6: 407-442.

Lovell, M., Harvey, A., Brewer, P.K., Williams, T.S., Jackson, C., & Williamson, G., 1997. Application of FMS images in the Ocean Drilling Program: an overview (in geological evolution of ocean basins: results from the Ocean Drilling Program). Geological Society Special Publications, 131: 287–303.

Machel, H.G., 2005. Investigations of burial diagenesis in carbonate hydrocarbon reservoir rocks. Geoscience Canada, 31p.

Jungmann, M., Kopal, M., Clauser, C., & Berlage, T., 2011. Multi-class supervised classification

of electrical borehole wall images using texture features. Elsevier, Computer & Geoscience, 37: 541-553.

Movahed, Z., Dashti, R., & Chakravorty, S., 2007. Geological and petrophysical analysis of FuII Bore Formation Micro Imager (FMI), Feild Ahvaz, Well No.383. Well Services of Iran (Schlumberger Methods), Report No. p-5627: 1-64.

Newberry, B.M., L.M. Grace, & Stief, D.D., 1996. Analysis of carbonate dual porosity systems from borehole electrical images. Society of Petroleum Engineers 35158, presented at the Permian Basin Oil and Gas Recovery conference, pp. 123-129.

Prensky, S.E., 1999. Advances in borehole imaging technology and applications, in Borehole Imaging: Applications and Case Histories. Geological Society Special Publications, 159: 1 – 43.

Rahimpour-Bonab, H., Esrafili-Dizaji, B., & Tavakoli, V., 2010. Dolomitization and Anhydrite precipitation in Permo-Triassic carbonates at the South Pars gas field, offshore Iran: controls on reservoir quality. Journal of Petroleum Geology, 33: 43–66.

Rahimpour-Bonab, H., 2007. A procedure for appraisal of a hydrocarbon reservoir continuity and quantification of its heterogeneity. Journal of Petroleum Science and Engineering, 58: 1–12.

Russell, S. D., Akbar, M., Vissapragada, B., & Walkden, G. M., 2002. Rock types and permeability prediction from dipmeter and image logs; Shuaiba Reservoir (Aptian), Abu Dhabi. American Association of Petroleum Geologists Bulletin, 86 (10): 1709–1732.

Safinya, K.A., Lan, P.L., Villegas, M., & Cheung, P.S., 1991. Improved formation imaging with extended microelectrical arrays. Scoiety of petroleum Engineers, 22726: 653-664.

Serra, O., 1989. Formation microscanner image interpretation. Schlumberger Educational Service, Houston, 117p.

Tavakoli, V., Rahimpour-Bonab, H., & Esrafili-Dizaji, B., 2011. Diagenetic controlled reservoir quality of South Pars gas field, an integrated approach. Comptes Rendus Geoscience, 343: 55-71.

Tucker, M.E., & Wright, V.P., 1990. Carbonate sedimentology. Oxford Blackwell Scientific Publications, 404 p.

Tucker, M.E., 1994. Sedimentary Petrology: An Introduction to Origin of Sedimentary Rocks. Blackwell, Oxford, 260 p.

Tucker, M.E., 2003. Sedimentary rocks in the fields. 3nd ed., John Wiley and Sons, 234p.