Skip to main content
Log in

Petrophysical, seismic structural and facies analysis of the Miocene reservoirs of East Morgan oil field, Gulf of Suez, Egypt

  • Original Paper
  • Published:
Arabian Journal of Geosciences Aims and scope Submit manuscript

Abstract

The Gulf of Suez is characterized by the presence of many hydrocarbon-bearing fields including reservoirs ranging in age from the Palaeozoic to the Tertiary. East Morgan oil field is one of the promising oil fields which are located in the southern part of the Gulf of Suez and tapping hydrocarbon deposits and potentials of the Miocene age. The purpose of this work is to evaluate the Miocene sediments of the Asl and Hawara Formations in East Morgan oil field (western sub-basin) through carrying out an integrated petrophysical, seismic structural and sequence stratigraphy study. Quantitative well logging analyses are carried out over Asl and Hawara Formations to throw light over their hydrocarbon potentiality. Good oil saturation is exhibited by the sand sections of Asl Formation, and fair to good are assigned for those of Hawara Formation in the Belayim dip province. On the other hand, a little hydrocarbon saturation is represented by both formations to the south of the study area in the Morgan accommodation zone (MAZ). The estimated petrophysical parameters of Asl reservoir throughout the study area range between 4 % and 10 % for effective porosity, 18 % and 89 % for shale volume and 2 % and 48 % for hydrocarbon saturation. Meanwhile, the ranges of 1–8 %, 20–98 % and 2–32 % are given for Hawara Formation for effective porosity, shale volume and hydrocarbon saturation, respectively. The lateral distribution maps show that the central and the western parts of the MAZ attain the best petrophysical parameters and hydrocarbon potentiality. Seismic facies analysis, structural framework and depositional history of the study area were studied through interpreting the seismic reflection data of 27 seismic profiles. A number of geo-seismic cross sections are constructed and interpreted to investigate the structural setting of the study area and clarify the main structural elements that affect the hydrocarbon bearing reservoirs. A group of simple NW–SE step-like normal faults, parallel to the Clysmic trend, is found cutting through the reservoir rocks at the bottom layers of the section (Rudeis Formation) and extending upwards to overlying layers (Zeit Formation). Some graben- and horst-shaped structures are found and usually bounded by two sets of oppositely dipping normal step-like cross faults. The seismic facies and sequence analysis revealed that the Miocene rocks are subdivided into two major third-order depositional sequences (S1 and S2), separated by two major depositional sequence boundaries (DSB1 and DSB2). The first sequence (S1, Lower–Middle Miocene rocks) is of prime interest, as it encounters the main hydrocarbon reservoirs in the study area (Asl and Hawara Formations that are equivalent to Rudeis Formation). The seismic facies of this sequence are characterized by low to moderate amplitude, discontinuous horizons and bounded by the depositional sequence boundary (DSB1) at the top. The reflection geometry at the cycle boundaries is considered as erosional truncation, toplaps and even concordant along the upper boundary of the cycle. The external form of these sediments is considered as sheet-like and wedge-shaped units. The entrapment of hydrocarbons seems to be of a combined effect of the stratigraphic and structural elements. It appears clear that both of the step-like structural fault system and the lateral variation of facies are the key parameters that control the accumulation of hydrocarbon in this area and in East Morgan field as a whole.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Fig. 17
Fig. 18
Fig. 19
Fig. 20
Fig. 21
Fig. 22
Fig. 23
Fig. 24

Similar content being viewed by others

References

  • Abd El-Gawad M (1970) The Gulf of Suez: a brief review of stratigraphy and structure. Phil Trans Roy Soc London A267:41–48

    Article  Google Scholar 

  • Abd El-Naby A, Abd El-Aal M, Kuss J, Boukharay M, Lashin A (2009) Structural and basin evolution in Miocene time, Southwestern Gulf of Suez, Egypt. Neues Jahrbuch für Geologie und Paläontologie-Abhandlungen, Germany 251(3):331–353

    Article  Google Scholar 

  • Abd El-Naby A, Abd El-Aal M, Kuss J, Boukharay M (2010) Stratigraphy interpretation of structurally controlled deposition: Middle Miocene Kareem Formation, southwestern Gulf of Suez, Egypt. GeoArabia 15(3):129–150

    Google Scholar 

  • Al-Arifi N, Lashin A, Al-Humidan S (2012) Migration of local earthquakes in the Gulf of Aqaba, Saudi Arabia. Earth Sci Res SJ 16(1):35–40

    Google Scholar 

  • Bobbit JE, Gallagher JD (1978) The petroleum geology of the Gulf of Suez. Tenth Annual Offshore Technical Conference, Houston, Texas, pp 375–380

    Google Scholar 

  • Robson DA (1971) The structure of the Gulf of Suez (Clysmic) rift with special reference to the eastern side. J Geol Soc Lond 127:247–277

    Article  Google Scholar 

  • Bosworth W (1985) Geometry of propagating continental rifts. Nature 316:625–627

    Article  Google Scholar 

  • Bosworth W (1995) A high-strain rift model for the southern Gulf of Suez (Egypt). In: Lambiase JJ (ed) Hydrocarbon habitat in rift basins. Geological Society of London Special Publications 80:75–112

  • Bosworth W, McClay K (2001) Structural and stratigraphic evolution of the Gulf of Suez rift, Egypt: a synthesis. In: Ziegler PA, Cavazza W, Robertson AHF, Crasquin-Soleau S (eds) Peri-Tethys Memoir 6: Peri-Tethyan rift/wrench basins and passive margins. Museum National d’Histoire naturelle de Paris Memoirs 186:567–606

  • Bosworth W, Crevello P, Winn RD Jr, Steinmetz J (1998) Structure, sedimentation, and basin dynamics during rifting of the Gulf of Suez and the northwestern Red Sea. In: Purser BH, Bosence DWJ (eds) Sedimentation and tectonics of rift basins: Red Sea-Gulf of Aden. Chapman and Hall, London, pp 77–96

    Chapter  Google Scholar 

  • Coffield DQ, Schamel S (1989) Surface expression of an accommodation zone within the Gulf of Suez rift, Egypt. Geology 17:76–79

    Article  Google Scholar 

  • Emery D, Myers K (1996) Sequence stratigraphy. Blackwell Science Ltd., Oxford, 297 p

    Book  Google Scholar 

  • Garfunkel RL, Bartov Y (1977) The tectonic of the Suez rift. Bull Geol Surv Isr 71:1–44

    Google Scholar 

  • Gawthorpe RL, Hurst JM (1993) Transfer zones in extensional basins: their structural style and influence in drainage development and stratigraphy. J Geol Soc 150:1137–1152

    Article  Google Scholar 

  • Haq BU, Al-Qahtani AM (2005) Phanerozoic cycles of sea-level change on the Arabian Platform. GeoArabia 10(2):127–160

    Google Scholar 

  • Haq BU, Hardenbol J, Vail PR (1987) Chronology of fluctuating sea level since the Triassic. Science 235:1156–1167

    Google Scholar 

  • Khalil BA (1984) Geological and sedimentological studies of Oligo-Miocene section in Abu Zenima area and October Field. MSc thesis. Geology Department, Ain Shams University, Cairo

    Google Scholar 

  • Hagras M (1986) Some geological observation in the Gulf of Suez area. Egypt, Eighth EGPC Exploration Conference, Cairo

    Google Scholar 

  • Harper ML (1966) Block faulting and sedimentation in the Gulf of Suez. Unpublished internal company report, 36 p

  • Hassouba A, Sarrawi M, Sakr S (1994) Early syn-rift sedimentation in October field area: a stratigraphic model for hydrocarbon accumulation. Twelfth Petroleum Exploration and Production Conference, Cairo, pp 341–350, Part I of II

    Google Scholar 

  • Hataba H, Hosny W, Gaafar I (1990) Application of graphic technique on the Miocene stratigraphy in October field area, Gulf of Suez. Tenth Petroleum Exploration and Production Conference, Cairo, pp 320–344, Part I

    Google Scholar 

  • Lashin A, Abd El-Aal M (2004) Seismic data analysis to detect the depositional process environments and structural framework of the east central part of Gharib Province, Gulf of Suez-Egypt. Annals of the Egyptian Geological Survey 27:523–550

    Google Scholar 

  • Lashin A, Al-Arifi N, Abu Ashour N (2011) Evaluation of the ASL and Hawara Formations using seismic- and log-derived properties, October oil field, Gulf of Suez, Egypt. Arab J Geosci 3–4:365–383

    Article  Google Scholar 

  • Lashin A, Mogren S (2012) Total organic carbon enrichment and source rock evaluation of the Lower Miocene rocks based on well logs: October oil field, Gulf of Suez-Egypt. Int J Geosci 3:683–695

    Article  Google Scholar 

  • Lashin A, Serag El Din S (2012) Reservoir parameters determination using artificial neural networks: Ras Fanar field, Gulf of Suez, Egypt. Arab J Geosci. doi:10.1007/s12517-012-0541-6

  • Lyberis N (1988) Tectonic evolution of the Gulf of Suez and the Gulf of Aqaba. Tectonophysics 153:209–220

    Article  Google Scholar 

  • Mesheref WM, Rafel EM, Abdel Baki SH (1976) Structural interpretation of the Gulf of Suez and its oil potentialities. Third EGPC Exploration Seminar, Cairo

    Google Scholar 

  • Meshref W, Abu El-Karamat M, El-Gindi M (1988) Exploration concept for oil in the Gulf of Suez. Ninth EGPC Exploration Conference, Cairo

    Google Scholar 

  • Motiei H (1993) Stratigraphy of Zagros. Treatise on the Geology of Iran No. 1, Ministry of Mines and Metals. Geological Survey of Iran, Tehran

    Google Scholar 

  • Moustafa AM (1976) Block faulting of the Gulf of Suez. Fifth Exploration Seminar, unpublished report. Egyptian General Petroleum Corporation, Egypt, pp 1–19

    Google Scholar 

  • Patton TL, Moustafa AR, Nelson RA, Abdine SA (1994) Tectonic evolution and structural setting of the Suez Rift. In: Landon SM (ed) Interior rift basins. AAPG Memoirs 59:7–55

  • Posamentier HW, Weimer P (1993) Siliciclastic sequence stratigraphy and petroleum geology—where to from here? AAPG Bull 77:731–742

    Google Scholar 

  • Rashed A (1990) The main fault trends in the Gulf of Suez and their role in oil entrapment. Tenth Petroleum exploration and production Conference, Cairo, pp 43–178, Part I

    Google Scholar 

  • Richardson M, Arthur MA (1988) The Gulf of Suez-northern Red Sea Neogene rift: a quantitative basin analysis. Mar Pet Geol 5:247–270

    Article  Google Scholar 

  • Schlumberger (1984) Well evaluation conference—Egypt. France, pp. 1–60

  • Schlumberger (1995) Well evaluation conference—Egypt. Houston, Texas, pp. 1–87

  • Shahin AN (1992) Oil window in the Gulf of Suez and the Northern Red Sea area. First International Symposium on Sedimentation and Rifting the Red Sea and Gulf of Aden, Egypt

    Google Scholar 

  • Shahin AN, Shehab MM (1984) Petroleum generation, migration and accumulation in the Gulf of Suez offshore, Sinai, vol 1. Sixth EGPC Exploration Seminar, Egypt, pp 126–152

    Google Scholar 

  • Shahin NA, Hassouba A, Sharaf LM (1994) Assessment of petroleum potential in the Northern Gulf of Suez. Twelfth Petroleum Exploration and Production Conference, Cairo, November, Part I of II, pp 152–174

  • Sharland PR, Archer R, Casey DM, Davies RB, Hall SH, Heward AP, Horbury AD, Simmons MD (2001) Arabian plate sequence stratigraphy. GeoArabia 2:371

    Google Scholar 

  • Soliman OM (1988) Petroleum habitat in the vicinity of October oil Field. Suez Canal University, Suez, Gulf of Suez. MSc thesis

    Google Scholar 

  • Vail PR, Mitchum RM Jr, Thompson S (1977a) Seismic stratigraphy and global changes of sea-level. Part 3: relative changes of sea-level from costal onlap. In: Pyton CE (eds) Seismic stratigraphy—applications to hydrocarbon exploration. AAPG Spec Mem 26:63–82

  • Vail PR, Mitchum RM Jr, Thompson S (1977b) Seismic stratigraphy and global changes of sea-level. Part 4: global cycles of relative changes in sea-level. In: Pyton CE (ed) Seismic stratigraphy—applications to hydrocarbon exploration. AAPG Spec Mem 26:83–97

  • Vail PR (1987) Seismic stratigraphy interpretation procedure. In: Bally AW (ed) Atlas of seismic stratigraphy, AAPG Studies in Geology 27(1):1–10

  • Van Wagoner JC, Posamentier HW, Mitchum RM, Vail PR, Sarg JF, Loutit TS, Hardenbol J (1988) An overview of the fundamentals of sequence stratigraphy and key definitions. In: Wilgus CK, Hastings BC, Kendall CG, Posamentier HW, Ross CA, Van Wagoner JC (eds) Sea-level changes: an integrated approach. Soc Econ Plaeo Miner Spec Pub 42:39–45

  • Van Wagoner JC, Mitchum RM, Campion KM, Rahmanian VD (1990) Siliciclastic sequence stratigraphy in well logs, cores and outcrops; concepts for high resolution correlation of time and facies. AAPG Methods in Exploration 7:55

    Google Scholar 

  • Younes AI, McClay K (2002) Development of accommodation zones in the Gulf of Suez-Red Sea rift, Egypt. AAPG 86:1003–1026

    Google Scholar 

Download references

Acknowledgments

The authors would like to thank the Exploration Division/Egyptian General Petroleum Corporation (EGPC) for releasing the data. We also would like to thank the journal reviewers for their comments, from which the paper has greatly benefited. In this respect, special thank goes to Dr. Mohamed Khalifa, University of Malaya, Malaysia.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Aref Adel Lashin.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Lashin, A.A., El-Naby, A.A. Petrophysical, seismic structural and facies analysis of the Miocene reservoirs of East Morgan oil field, Gulf of Suez, Egypt. Arab J Geosci 7, 3481–3504 (2014). https://doi.org/10.1007/s12517-013-1011-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12517-013-1011-5

Keywords

Navigation