Microfacies Analysis and diagenesis process of Hartha Formation East Baghdad oilfield, center Iraq
DOI:
https://doi.org/10.24237/ASJ.02.03.788BKeywords:
Hartha Formation, microfacies, diagenesis processes. East Baghdad oil field, Foraminifera.Abstract
This study focused on interpreting the carbonate microfacies of Hartha Formation and the impact of diagenesis processes in selected wells of East Baghdad oil field. A total of 33 thin sections were examined from cutting and core samples. The study revealed distinct microfacies indicating different paleoenvironments. The outer-ramp environment is characterized by mudstone and wackestone microfacies dominated by planktonic foraminifera. Mid-ramp environment is distinguished by lime mudstone, bioclastic wackestone and foraminiferal-bioclastic wackestone. The inner ramp environment is subdivided into shoal, open marine, and restricted subenvironments. The shoal environment is only identified by rudistid grainstone microfacies. The open marine environment includes Benthic foraminifreal wackestone and Foraminiferal-echinoderm packstone. Restricted marine environment consists of mud-support microfacies such as Benthic foraminiferal-bioclastic wackestone and Rotalid wackestone Diagenetic processes affect the textural properties of Hartha Formation microfacies. They include dolomitization, cementation, compaction, and fracturing
References
H.V. Dunnigton, D.M. Morton. Cretaceous Oil Prospects Cretaceous Reservoir, INOC, Baghdad, Un pub. Report, 8(1953)
An evaluation study of the heavy oils of the Hartha and Zubair reservoirs in a field east of Baghdad. The Ministry of Oil / Oil Exploration Company / Geology and Geophysics Authority / Evaluation Geology Department. 2P. 2020
B. Al-Zaidy, Microfacies Analysis and Basin Development of Hartha Formation in East Baghdad Oil field, Central Iraq, (2019)
R. M. S. Owen, S. N. Nasr, Stratigraphy of the Kuwait-Basra Area. In: Weeks, L.G., Ed., Habitat of Oil, American Association Petroleum Geologist Memoir 1, Tulsa, 1252-1278(1958)
S. Z. Jassim, J. C. Goff, Geology of Iraq, Published by Dolin, Prague Moravian Museum, Brno, p341, (2006)
Oil Exploration Company. Geophysical-geological evaluation study for East Baghdad field (southern area 2) - 3D survey, Oil Exploration Company Library, 3,18 (2013)
R. J. Dunham, Classification of carbonate rocks according to depositional textures. (1962).
E. Flugel. Microfacies of Carbonate Rocks, Analysis, Interpretation and Application, (Springer-Verlag, Berlin, 2010), 976
A. A. M. Aqrawi, T. A. Mahdi, G. H. Sherwani, A. D. Horbury, Characterisation of the Mid-Cretaceous mishrif reservoir of the southern Mesopotamian Basin, Iraq, In American Association of Petroleum Geologists Conference and Exhibition , 7, 7-10 (2010)
W. M. Ahr, Geology of carbonate reservoirs: the identification, description, and characterization of hydrocarbon reservoirs in carbonate rocks, (Texas A&M University, 2008), 277
W. M. Ahr, Geology of carbonate reservoirs: the identification, description, and characterization of hydrocarbon reservoirs in carbonate rocks, (John Wiley & Sons, 2011), 273
I. M. A. Al-Twajary, MIKROFACJE I ŚRODOWISKO SEDYMENTACJI APCKO-ALBSKIEJ SUKCESJI OSADOWEJ POLA NAFTOWEGO BAI HASSAN, BASEN ZAGROS, PÓŁNOCNY IRAK, (2023)
C. Flügel-Koch, A. Ohlmann, R. Fuchshofer, U. Welge-Lüssen, E. R. Tamm, Thrombospondin-1 in the trabecular meshwork: localization in normal and glaucomatous eyes, and induction by TGF-β1 and dexamethasone in vitro. Experimental eye research, 79(5), 649-663(2004)
P. A. Scholle, Ulmer Scholle, A Color Guide to the Petrography of Carbonate Rocks: Grains, textures, porosity, diagenesis, AAPG Memoir 77, (The American Association of Petroleum Geologists Tulsa, Oklahoma, U.S.A, 2003), 459
M. W. Longman, Carbonate diagenetic textures from the near surface diagenetic environment, AAPG Bulletin, 64(4), 461-487(1980)
G. A. Moore, Soilguide (Soil guide): A handbook for understanding and managing agricultural soils, Bulletin, 4343, 381 (2001)
H. A. Arosi, M. E. J. Wilson, Diagenesis and fracturing of a Large-scale, syntectonic carbonate platform, Jour. Sedimentary geology, 26, 109-134(2015)
G. Chaseb', T. A. Mahdi, Hartha Formation divisions Based on Well Logs Analysis in Majnoon Oil Field, Southern Iraq, Iragi Journal of Science, 61(6), 1362-1369(2020)
S. N. S. Haddad, M. A. Amin, Mid-Turonian-early Campanian sequence stratigraphy of northeast Iraq, Gen Arabia, 12(2), Gall Petrolink, Bahrain,(2007)
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2024 CC BY 4.0
This work is licensed under a Creative Commons Attribution 4.0 International License.
