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Introduction of sealing fault in Asmari reservoir by using FMI and RFT in one of the Iranian naturally fractured oil fields

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Abstract

Historically, in Iran, the borehole imaging tools are acquired to locate major structural features, such as faults, fractures, and sedimentary environment interpretation. The well GS-314 was drilled to evaluate the Asmari formation. It was drilled with an 8.5-in, vertical hole. To get a better understanding of reservoir characteristics of the Asmari formation on the Gachsaran field, to fullbore formation microimager (FMI), repeat formation tester (RFT) and a full set of open hole logs are acquired. The main objective of running FMI was to determine fracture characteristics and locate high porous layers/streaks so that points for RFT survey could be chosen for better results. In this study, it indicated a possible sealing/non-permeable fault in the Asmari reservoir in GS-314 of the Gachsaran field. The RFT pressure data indicated a change of 100 psi in the oil gradients across the fault, indicating possible reservoir compartmentalization in the area around well GS-314. The FMI images indicated a dense layer of 1 m thickness with a dip very different from the bedding around 2173.6 m in the Asmari reservoir. It was interpreted as a sealing fault based on the dense appearance of its plane. In this work, we will show you that how by using a combination of FMI and RFT can interpret a sealing fault in one of the Iranian naturally fractured oil fields.

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References

  • Alavi M (2004) Regional stratigraphy of the Zagros fold-thrust belt of Iran. Am J Sci 304:1–20

    Article  Google Scholar 

  • Costain JK, Çoruh C (1989) Tectonic setting of Triassic half-grabens in the Appalachians. Seismic data acquisition, processing, and results. AAPG Mem 46:155–174

    Google Scholar 

  • Daungkaew S, Fujisawa G, Chokthanyawat S, Comrie-Smith N, Thaitong T (2012) Is there a better way to determine the viscosity in waxy crudes? SPE Asia Pacific Oil and Gas Conference and Exhibition 2012: providing a bright future, APOGCE 2012

  • Motiei H (1993) Stratigraphy of Zagros in Hushmandzadeh. Treatise on the Geology of Iran: Tehran, Geological Survey of Iran, 536 p

  • Motiei H (1995) Petroleum geology of Zagros. Geological survey of Iran with cooperation of Deputy Ministry of project and planning, no. 25

  • Movahed Z, Junin R, Safarkhanlou Z, Akbar M (2014) Formation evaluation in Dezful embayment of Iran using oil-based-mud imaging techniques. J Pet Sci Eng 121(2014):23–37

    Article  Google Scholar 

  • Rezaie MR (2006) The book of petroleum geology, alavi propagation; p 472

  • Schlumberger (2009). Borehole image measurements. Schlumberger documents

  • Schlumberger (2005) Stratigraphy and geology of Iran, Reservoir Symposium

  • Sepehr M (2004) The structural framework of the Zagros fold-thrust belt. Iran. doi:10.1016/ j.marpetgeo. 2003.07.006

    Google Scholar 

  • Soliman, Osama M, Saad Aba A, Bader A (2010) Tectonic and climatic controls of post glacial terminal fluvial systems, Permian Unayzah Reservoir

  • Stocklin J (1968) Structural history and tectonics of Iran. AAPG Bull 52:509–526

    Google Scholar 

  • Szabo F, Kheradpir A (1978) Permian and Triassic stratigraphy, Zagros Basin, South West Iran. J Pet Geol 1(2):57–82

    Article  Google Scholar 

  • Tatar M, Hatzfeld D, Ghafory-Ashtiany M (2004) Tectonics of the Central Zagros (Iran) deduced from micro-earthquake seismicity. Geophys J Int 156:255–266

    Article  Google Scholar 

  • Yang J, Gou X, Hilmi N, Xia R (2012) Identify fracture features and to classify fracture types. Fractured carbonate reservoirs

Download references

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Authors and Affiliations

  1. Department of Petroleum Engineering, Faculty of Chemical and Natural Resources Engineering, Johor, Malaysia

    Zohreh Movahed, Radzuan Junin & Mostafa Alizadeh

  2. National Iranian Oil Company, Tehran, Iran

    Hassan Amiri Bakhtiari

  3. Well Services of Iran, Tehran, Iran

    Zeynalabedin Safarkhanlou

  4. RIPI oil company, Tehran University, Tehran, Iran

    Ali Asghar Movahed

Authors
  1. Zohreh Movahed
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  2. Radzuan Junin
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  3. Hassan Amiri Bakhtiari
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  4. Zeynalabedin Safarkhanlou
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  5. Ali Asghar Movahed
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  6. Mostafa Alizadeh
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Correspondence to Zohreh Movahed.

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Movahed, Z., Junin, R., Amiri Bakhtiari, H. et al. Introduction of sealing fault in Asmari reservoir by using FMI and RFT in one of the Iranian naturally fractured oil fields. Arab J Geosci 8, 10919–10936 (2015). https://doi.org/10.1007/s12517-015-1951-z

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  • DOI: https://doi.org/10.1007/s12517-015-1951-z

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