Methods for Determination of Hydraulic Flow Units Using Petrophysical Parameters (Case Study from South Pars Gas Field, Iran)

Amir Sepehri, Mohammad Kamal Ghassem Alaskari, Malihe Sadat Kazemi Aria

Abstract


 

The purpose of this study is to compare methods for determining hydraulic flow units and to evaluate the quality of the reservoir as well. This study relates to the two reservoir zones K1 and K2, in the Kangan Formation in well SP-a with the Triassic age. In this research, well logging data and petrophysical data, have been used in Geolog and Excel softwares. Various methods have been used to determine hydraulic flow units. Among the existing methods, the Lorenz method and FZI cumulative histogram were preferred to the other methods. By applying methods to the data obtained from Kangan reservoir six and eight flow units were identified respectively for the two reservoir zones of K1and K2. This investigation showed that in the (SP_a) well at depth interval between 2860-3010 meters total of Fourteen hydraulic flow units have been selected. Based on our calculations and interpretation of well data, reservoir zones of K2 have higher reservoir quality than K1. The study of gas production from this well shows that determination of hydraulic flow units in the reservoir zones of this well can help to prevent the production of water in the beneficiary zones.


Keywords


Hydraulic flow units, quality of reservoir, Kangan Formation, South Pars gas Field.

Full Text:

PDF

References


ALSHARHAN, A.S. and NAIRN, A.E.M., 1997. Sedimentary Basins and Petroleum Geology of the Middle East. Elsevier, Netherlands (First edition).

ALSHARHAN, A.S. and NAIRN, A.E.M., 2003. Sedimentary Basins and Petroleum Geology of the Middle East. Elsevier, Netherlands (Second edition).

ALSHARHAN, A.S., 2006. Sedimentological character and hydrocarbon parameters of the middle Permian to Early Triassic Khuff Formation, United Arab Emirates.GeoArabia, 11, 3.

BASHARI, A., 2005. Khuff formation Permian-Triassic carbonate in the Qatar-South Fars arch hydrocarbon province of the Persian Gulf. First Break (Middle East Review), 23.

Davies, D.K.,Vessell, R.K.,1996. Identification and Distribution of Hydraulic Flow Units in a Heterogeneous Carbonate Reservoir: North Robertson Unit, West Texas. paper SPE 35183 presented at the Permian Basin Oil and Gas Recovery Conference, Midland, Texas, 27-29.

EDGELL, H.S., 1996. Salt Tectonic in the Persian Gulf Basin. In: ALSOP, G.I.,BLUNDELL, D.J. and DAVISION, I., (Eds.): Salt Tectonics.Geological Society of London, Special Publication 100, 129-151.

EHRENBERG, S.N., NADEAU, P.H. and AQRAWI, A.A.M., 2007.A comparison of Khuff and Arab reservoir potential throughout the Middle East. AAPG Bulletin, 91, 3, 275-286.

GUNTER, G.W., FINNERAN, J.M., HARTMANN, D.J. and MILLER, J.D.,1997. Early determination of reservoir flow units using an integrated petrophysical method. Society of Petroleum Engineers, SPE 38679.

Guo, G., Diaz, M.A., Paz, F., Smalley, J., Waninger, E.A., 2005. Rock Typing as an Effective Tool for permeability and Water-Saturation Modeling: A Case study in a Clastic Reservoir in the Oriente Basin. paper SPE 97033, presented at 2005 SPE Annual Technical Conference and Exhibition held in Dallas, Texas, U.S.A., 9-12 October 2005.

INSALACO, E.,VIRGONE, A., COURME, B., GAILLOT, J., KAMALI, M.,MOALLEMI,A.,LOTFPOUR,M. and 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.

KOEHRER, B., ZELLER, M., AIGNER,T., PÖEPPELREITER, M., MILROY, P.,FORKE, H.and AL-KINDI,S.,2010. Facies and stratigraphic framework of a Khuff outcrop equivalent: Saiq and Mahil formations,Al Jabal al-Akhdar, Sultanate of Oman. GeoArabia, 15, 2, 91-156.

KOEHRER, B.,AIGNER,T., FORKE, H. and PÖPPELREITER, M., 2012. Middle to Upper Khuff (Sequences KS1 to KS4) outcrop-equivalents in the Oman Mountains: Grainstone architecture on a subregional scale. GeoArabia, 17, 4, 59-104.

KONYUHOV, A.I. and MALEKI, B., 2006.The Persian Gulf Basin: geological history, sedimentary formations, and petroleum potential. Lithology and Mineral Resources, 41, 344-361.

MARTIN, A.J., SOLOMON, S.T. and HARTMANN, D.J., 1997. Characterization of petrophysical flow units in carbonate reservoirs.AAPG Bulletin, 81, 734-759.

PEROTTI, C.R., CARRUBA, S., RINALDI, M., BERTOZZI, G., FELTRE, L. and RAHIMI, M., 2011.The Qatar–South Fars Arch Development (Arabian Platform, Persian Gulf): Insights from Seismic Interpretation and Analogue Modelling. In: SCHATTNER, U., (Eds.): New Frontiers in Tectonic Research - At the Midst of Plate Convergence. Published by InTech, 352 pp.

PILLEVUIT, A.,1993.Les Blocs Exotiques du Sultanat d’Oman: Evolution paléogéographique d’une marge passive flexurale. Lausanne, Université de Lausanne, Institut de Géologie et Paléontologie, 249 pp. DOI:oclc/30785343.

PITTMAN, E.D., 1992. Relationship of porosity and permeability to various parameters derived from mercury injection-capillary pressure curves for sandstone. AAPG Bulletin, 72, 2, 191-198.

SAINT-MARC, E., 1978. Arabian Peninsula. In: MOULLADE, M. and NAIRN,A.E.M., (Eds.):The Phanerozoic geology of the world II: the Mesozoic. Elsevier,Amsterdam, 529 pp.

SAINT-MARC, E., 1978. Arabian Peninsula. In: MOULLADE, M. and NAIRN,A.E.M., (Eds.):The Phanerozoic geology of the world II: the Mesozoic. Elsevier,Amsterdam, 529 pp.

Shenawi, S.H., Al-Mohammadi, H., Faqehy, M., 2009. Development of Generalized Porosity –permeability Transforms by Hydraulic Units for Carbonate Oil Reservoirs in Saudi Arabia. paper SPE 125380, prepared for presentation at the 2009 SPE/EAGE Reservoir Characterization and Simulation Conference held in Abu Dhabi, UAE, 19-21 October.

Shenawi, S.H., White, J.P., Elrafie, E.A., Kilany, K.A., 2007. Permeability and Water Saturation Distribution by Lithologic Facies and Hydraulic Units: A Reservoir Simulation Case Study. paper SPE 105273, presented at the 15th SPE Middle East Oil & Gas Show and Conference, Kingdom of Bahrain.

SZABO, F. and KHERADPIR, A., 1978. Permian and Triassic stratigraphy, Zagros basin, South-West Iran. of Petroleum Geology, 1, 57-82.

ZELLER, M.,KOEHRER,B.,ADAMS, E.W.,PÖPPELREITER, M. and AIGNER,T., 2011.Near well-scale heterogeneities in a Khuff outcrop equivalent (Saiq Plateau,Jebel Al Akhdar, Sultanate of Oman). of Petroleum Geology, 34, 3, 241-260.


Refbacks

  • There are currently no refbacks.


Copyright (c) 2017 amir sepehri, Mohammad kamal Ghassem Alaskari, Malihe Sadat Kazemi Aria

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.