Stratigraphic sequential analysis, paleo- environment and oil interest of the Upper Silurian - Lower Devonian (F6 reservoir) of Southeastern Algerian Sahara: case of Hassi Mazoula field and its bordering regions (Illizi basin).

A. Belkacemi, A. Asses, R. Hamdidouche

Abstract


Hassi Mazoula field is located in the Southeastern corner of the Algerian Sahara. It belongs to the meridional flank of Ahara spur which separate two big sedimentary basins: Berkine northwards and Illizi southwards.

The F6 Reservoir, of Upper Silurian-Lower Devonian Age, consists of sandstones, silts and shale. It’s divided into eight lithologic units; from bottom to top: M1, M2, A, B1, B2 units make the lower series and C1, C2, C3 units form the upper series. Caledonian unconformity separates them.

Key concepts in sequential stratigraphy involve understanding how certain geometric relationships between rock layers occur in its original deposition environment. Changes of deposition environments (due to climate, tectonics, subsidence and others) have economic importance when they cause significant lateral changes in sediment deposition patterns. The analysis of the spatio-temporal distribution of the deposits makes it possible to highlight the petroleum systems and locate the reservoir levels, the possible sources and the cover rocks.

Sequentially, the F6 Reservoir consists of five deposition sequences: three sequences in the Upper Silurian (S1, S2 and S3) and two sequences in the Lower Devonian (S4 and S5).

Paleo-environmental changes determine tract systems in each sequence; when we draw the limits of good sandstone bodies in each tract system, its leads to judging the possibilities of hydrocarbons in each sequence at the scale of this studied area.

In this case, lowstand systems tract of S4 and S4 sequences seem to constitute good petroleum targets.


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Attar, A.; Chaouache, A. Les bassins sédimentaires algériens: aspects géologiques et pétroliers. Internal report Sonatrach/Div. Exploration, Algeria. (1988) vol 47p.

Crossley, R.; McDougall, N. Lower Paleozoic reservoirs of North Africa. In: Macgregor, D.S, Moody, R.T.J; Clark – Lowes, D.D( Eds), Petroleum Geology of North Africa, vol. 132.Geological Society of London, Special Publication, (1998) p .157-2166.

Echikh, K. Geology and hydrocarbon occurrences in the Ghadames Basin, Algeria, Tunisia, Libya. In : D.S. MacGregor, R.T.J. Moody, D.D. Clark-Lowes (Eds.), Petroleum Geology of North Africa. Geol. Soc. Lond., Spec. Publ. (1998) 132,p 231–263.

Echikh, K. Géologie des provinces pétrolières de l’Algérie: Inst. Nat. Hydrocarbures. soc Nat. Edi. (1975), Alger.

INCT. Rapport national de l’Algérie : Assemblée Générale de l’Association Internationale de Géodésie (AIG), Italy,(2007). Internal report INCT, Algeria.Vol 26p.

Benlachehab, M. Characterization and modeling by geostatistical methods of Siluro- Devonian reservoirs (F6) of the West Djoua field (Illizi Basin). Magisterial Thesis. DTD / Boumerdes, Algeria; (2000) 132 p.

Beicip. Geologic study of F6 reservoir of Stah and Mereksen. Internal report. (1977) Exploration Division /Sonatrach.

Beicip. Etude géologique structurale et cartographique du Môle d’El Biod – Bassin d’Illizi, rapport interne, (1975) Division Exploration/Sonatrach.

Alem, N.; Assassi, S., Benhebouche, S.; Kadi, B. Geological study of the F6 reservoir, deposit of Tin Fouye Tabankort (Illizi Basin). Internal report of Sonatrach /DTD. 225p, (1993) Algeria.

Alem, N.; Assassi, S.; Benhebouche, S.; Kadi, B. Geological study of the F6 reservoir: Upper Silurian - Lower Devonian of the region of Hassi Mazoula North (Illizi Basin). Internal report of Sonatrach / DTD, (1995) Vol 175p, Algeria.

Selly, R. C. The sedimentary basin of Northwest Africa: Stratigraphy and sedimentation. in Hsü J, ed sedimentary basin in the word, African basin, (1997). Elsevier. p1-37.

Hanniche, M. Architecture and deposit model of a Paleozoic sedimentary series in a cratonic context: The Siluro-Devonian basin of Illizi (Eastern Sahara, Algeria). PhD thesis, (2002) University of Rennes 1. IFP-France.

Boumendjel, Kh. The Chitinozoans of Upper Silurian and Devonian, Algerian Sahara (systematic geological framework - bio stratigraphy). PhD thesis, (1983) Rennes 1 University.

Abdesselam-Rouighi, F.; Khodjaoui, A. Palynological study of the reservoir F6, Tin Fouye Field (Illizi Basin.) Internal report Sonatrach/DTD, (1994)Algeria.Vol 21 p.

Jardiné; Yapaujian. Litho-stratigraphy and palynology of the Devonian – Silurian sandstone of Polignac (Sahara). IFP review. (1968). Vol XXIII.

Lanzoni, E.; Magloire, L. Palynological synthesis of Silurian - Lower Devonian North of the Polignac Basin (Reservoir F6). Internal report of Sonatrach, (1968). S.N.REPAL. N ° 21733.

Beicip-Franlab. Etude des pièges subtils du Môle d’Ahara. Internal report. (2013) Exploration Division /Sonatrach.

Galloway . Genetic Stratigraphic Sequences in Basin Analysis I: Architecture and Genesis of Flooding-Surface Bounded Depositional Units. AAPG Bulletin 73(2) (1989) DOI: 10.1306/703C9AF5-1707-11D7-8645000102C1865D. V. 73, No. 2 , 125-142p.

Cross, T. A. Applications of High-resolution sequence stratigraphy to reservoir analysis. In surface reservoir characterization- VIIth IFP Research conference on Exploration production (Eds R Escard and Doligez), (1992),179 p. Technip, Paris.

Cross, T. A.; Lessenger, M. A. Sediment volume partitioning : rationale for stratigraphic, model evaluation and high-resolution stratigraphic correlation. In Sandvik O., Gradstein, F. et Millton, N. (Eds), (1998) Predictive High Resolution Sequence Stratigraphy. Norwegian Petroleum Society Special Publication. p. 171–196.

Hamon, Youri. Morphologie, évolution latérale et signification géodynamique des discontinuités sédimentaires. Exemple de la marge Ouest du bassin du Sud-Est (France).Thèse doctorat, univ de Montpellier II –France ; Hal archives-ouvertes (2004). 294 p.

Catuneanu, O.; and al. Towards the Standardization of Sequence stratigraphy. Published in Earth- Reviews 92:1-2. (2009) p. 1-33. Doi: 10.1016.

Allen, G. P. Sequence stratigraphic analysis in clastic sediments. Part I : Basic concepts. Pub. Centre scientifique et technique (Total) (1990).

Vail, P. R.; Mitchum, Jr. R. M;. Todd, R. G.;and al. Seismic stratigraphy and global changes of sea level. In PAYTON, C. E. (Ed), Seismic Stratigraphy – Applications to Hydrocarbon Exploration. American Association of Petroleum Geologists Memoir 26, (1977) p 49–212.

Christie-Blick, N.; Driscoll, Neal. W. Sequence stratigraphy. Publication of Annu. Rev. Earth Planet. Sci. (1995) 23. 451-78.

Posamentier, H. W.; Weimer, P. Siliciclastic sequence stratigraphy: Recent developments and applications. AAPG Memoir 58. Pub, Tulsa. (1993) Oklahoma USA.

Helland-Hansen, W. Sequence stratigraphy theory: remarks and recommendations. Norwegian Petroleum Society Publications, (1995) .Volume 5, p 13-21.

Homewood, P. ; Guilloucheau, F.; Eschard, R. ; Cross, T. A. Corrélations haute résolution et stratigraphy génétique: une démarche intégrée. Bulletin des Centres de Recherches Exploration Elf-Aquitaine, (1992) 16- 203 p.

Van Wagoner, J. C.; Psamentier, H. W., Mitchum, R. M.; Vail, P. R.; Sarg, J. F.; Loutit, T. S.; Hardenbol, J. An overview of the fundamentals of sequence stratigraphy and key definitions. Soc. Econ. Paleot. Minéral special publication, (1988) N°42, p 39-45.

Bekkouche, Dj. The Upper Silurian - Lower Devonian of the Ghadames basin (Algerian eastern Sahara): litho stratigraphy, sedimentology and diagenesis of sandstone reservoirs. PhD Thesis . Unvi Joseph Fourier-Grenoble. French. ChI et II, (1992). p 93 -126.

Cojan, I.; Renard .Sedimentology. Edition Dunod, Paris. 418p. (1999) ISBN : 978-2-10-004387-3

Lüning, S.; Aricher, R.; Craig, J.; Loydell, D. K. Lower Silurian “Hot Shales, in North Africa and Arabia: regional distribution and depositional model. Earth Sci. Rev. (2003), 49, 121-200. https://www.researchgate.net/publication/285650838.

Lüning, S. Silurian 'hot shales' in North Africa: Mapping anoxia in time and space.AAPG Search and Discovery Article #90016©2003 AAPG Hedberg Conference, (2003a), Algiers, Algeria.

Galeazzi, S.; and al. Regional geology and petroleum systems of the Illizi-Berkine area of the Algerian Sahara Pateform: An overview. Publ. Marine and Petrolium Geology27 (2010) 143-178.

Miall, A. D. Principles of sedimentary basin analysis. 3rdedi. SBN. Springer – Verlag Berlin. Heidelberg New York (1990) .Vol 616p.

Knaust, D. Atlas of trace fossils in well core: appearance, taxonomy and interpretation. Ouv, ISBN 978-3-319-49837-9. Springer international publishing AG (2017).

Reading, H. G. Sedimentary environments: processes, facies and stratigraphy. Blackwell, (1996). 688 p.

Bertrand, J. P. Corps sédimentaires: exemples sismiques et diagraphiques. Edition Technip, (1986) IFP, Paris.

Beuf, S.; and al. Sandstones of Lower Paleozoic in Saharan: Sedimentation and discontinuities, structural evolution of a craton. edi technip.pub of I.F.P.Paris. part II. (1971). p133 - 254.

Asses, A. Analysis of borehole logs, sedimentary sequences and paleogeography of shaly-sandstone series deposited at the Silurian-Devonian pass in the East-Saharan syncline: Illizi basin and Algerian part of the Ghadames basin. PhD Thesis, Univ. of Pau (1987).

Eschard, R.; Desaubliaux, G.; Mantadert, L.; Ravenne, C.; Bekkouche, Dj.; Abdhallah, S.; Benkouider, M.; Braik, F.; Illizi-Berkine reservoir consortium: Rap. Conf. IFP. (2000) N°B4376070.

Gubler, Y. ; and al. Essai de nomenclature et caractérisation des principales structures sédimentaire. Ouv. of CNRPPGN; Edi.TECHNIP (1966). Paris. vol 291p.

Freulon, J. M. Geological study of the primary series of the central Sahara (Tassili n'Ajjers and Fezzan). Doctorate of Science (1964) , C.N.R.S (Paris) and SCG (Algiers).

Boggs, Sam. Jr. Principles of Sedimentology and Stratigraphy. Book, 4th Edition (1993), University of Oregon.

Chaberlian, C. K. Recognition of trace fossils in cores. (1978) Chapitre 5. (SEPM) Center for Trace Fossil Research. Department of Geoscience. University of Nevada. USA .89154.

Dardour, A. M.; Boote, D.R.; Baird, A.W. Stratigraphic controls on Paleozoic petroleum systems, Ghadames basin, Libya. Journal of petroleum Geology 27 (2004), p141-162.

Eschard, R.; Bekkouche, Dj.; Braik, F.; Desaubliaux, G. Architecture of the Upper Silurian/Lower Devonian sequences in the Tassili outcrops, Illzi basin, Algeria. Rap. Conf. (2002) IFP.

Kazi-Tani, N. Geodynamic evolution of the North African border: The intra-plate area in northern Algeria; Sequential Mega Approach. "PhD thesis Es-Science (1986), univ. of Pau and the countries of Adour, I.U.R.S.A de Bordeaux, Volume 1.

Chamley, H. Sedimentology. Springer-Verlag, (1990) 3ème Edition, 285 p. www.biblio-scientifique.net.

Meyer, R. Paleo alterites and Paleosols: the continental footprint in the sedimentary series. Edition B.R.G.M- manuals and methods (1982), France. p 38 - 131.

Latrache. Evolution structural du basin d’Illizi (Sahara algérien orientale) au Paléozoïque supérieur. DES univ. Aix. Marseille III. (1982).

Massa, D. Paléozoïque de Libye occidental : Stratigraphie et paléogéographie.Thèse de doctorat. Scien naturelles ,univ de Nice (1988).

Talah, N.; Delfautd, J.; Thomas, G. Assès, A. Le complexe détritique du passage siluro-Dévonien au Sahara. 118e conger. nat. soc. histet scient., Pau. 4e coll. Géologie africaine 26, 1993,p 221–237. In Bassins sédimentaires africains, Editions du CTHS, (1995).

Wendt, J.; al. Devonian stratigraphy and depositional environments in the southern Illizi Basin (Algerian Sahara)", Journal of African Earth Sciences(2009), 200906/07

Chamley, H.; Deconinck, J.F. Bases de sédimentologie. DUNOD, 3ème Edition, Paris, (2011). 285 p. ISBN: 978-2-10-056164-3

Cojan, ; Renard . Sédimentologie. Ouvrage. Edition Dunod, Paris -(2013). 480p. ISBN : 978-2-10-059852-6.

Bendella, M. Depositional environment and Ichnology (Nereites ichnofacies) of the Late Devonian Sahara region (SW Algeria) Publi. Arabian Journal of Geosciences, (2014). DOI 10.1007/s12517-014-61602-9.

Rogerson,. Are spherulitic lacustrine carbonates an expression of large-scale mineral carbonation. A case study from the East Kirkton Limestone, Scotland (2017). Gondwana Research. Volume 48 , p 101-109. (abstract).

Bestland,; and al. Late Eocène detrital laterites in central Oregon: Mass balance geochemitry depositional setting, and lanscape evolution: Geol.Soc. Am. Bull, 108, n°3. (1996).p 285-302

Gillot,. Apport de l’étude des paléosols carbonatés et des climofonctions spécifiques aux reconstitutions paléo-environnementales et paléo-climatiques : Application aux séries alluviales oligo-miocènes d’Europe occidentale. Thèse Doctorat ParisTech Géosciences, n° 398 (ENSMP) (2014).

Meyer, R. Rôle de la paléo-altération, de la paléo-pédogenèse et de la diagenèse précoce au cours de l’élaboration des séries continentales : présentation d’exemple choisis dans quelques formations sédimentaires françaises.- Doctorate thesis. Unvi of Nancy I U.E.R. Earth sciences. (1981) France. V : 229. p 7-14

Dumoulin,. White,. Micromorphologic Evidence for Paleosol Development in the Endicott Group, Siksikpuk Formation, Kingak(?) Shale, and Ipewik Formation, Western Brooks Range, Alaska. Studies by the U.S. Geological Survey in Alaska, U.S. Geological Survey Professional Paper 1709-E. (2014).

Merzerand, G. Stratigraphie séquentielle: principes et applications: cours complets et exercices. Deboeck. Superieur (2018). Paris. https://www.google.com/search?q=cross+1992+stratgraphie.

Allen, John. R. L. Sedimentary structures: Their character and physical basis. Unabridged on- volume, 1st edition (1984).

Legrand, P. Aperçu sur l’histoire géologique de l’Algérie paléozoïque : le Paléozoïque inferieur et le Dévonien, in Fabre J. (ed.), Afrique de l’Ouest. Introduction géologique et termes stratigraphiques. Lexique stratigraphique international. Nouvelle serie, volume 1, IUGS. Pergamon Press, Oxford (1983), p 96-104.

Alem, N.; Assassi, S.; Benhebouche, S.; Kadi, B. Controls on hydrocarbon occurrence and productivity in the F6 reservoir, Tin Touyé-Tababkort area, NW Illizi Basin, in Macgregor, D S, Moody, R T J and Clark- Lowes, D D eds , Petroleum geology of North Africa: Geological Society, London, Special Publication 123 (1998), p 175-186.

Legrand, P. Essai sur la paléogéographie au Silurien du Sahara algérien, Compagnie française des pétroles, Notes et mémoires 16 (1981). p 9-24.

Colombié, C. Sédimentologie, stratigraphie séquentielle et cyclostratigraphie du Kimméridgien du Jura suisse et du Bassin vocontien (France): relations plate-forme- bassin et facteurs déterminants. Thèse de Doctorat .N˚ 1380 (2002). Univ. of Fribourg. Suisse.

Cross, T. A.; Homewood, P. W. Amanz Gressly’s role in founding modern stratigraphy., Geological Society of America Bulletin (1997), vol. 109, p 1617–163.


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