Lithofacial inhomogeneity influence on reservoir properties of the Lower Miocene complex at the Central area of the Dragon field

Authors: A.N. Ivanov, E.V. Frolova (Research and Engineering Institute, Vietsovpetro JV, the Socialist Republic of Vietnam, Vungtau), P.S. Riga, V.V. Pogrebnyak, A.K. Talankin (Field Geophysics, Vietsovpetro JV, the Socialist Republic Vietnam, Vungtau)

Key words: lower Miocene reservoirs, litho-facial inhomogeneity, sedimentation model, reservoir properties, Flow Zone Indicator (FZI).

This paper presents the results of the sedimentology and lithology heterogeneity investigation in the complicated Lower Miocene clastic reservoirs and its relationship with the fundamental rock petrophysical properties (porosity, permeability) in the Central Dragon field (Cuu Long basin, Vietnam Offshore). Based on the seismic survey data, core lithological and petrophysical analysis data and the wireline logs the comprehensive complex analysis of the section facial characteristics had been done. The reservoir lithological heterogeneity analysis and the lithological (facies) contribution to the petrophysical properties (porosity, permeability) distribution had been evaluated with the special (advanced) petrophysical attribute – FZI (Flow Zone Indicator). Following the investigation, the highlighted depositional environments with improved reservoir properties had been determined. The research data can be used to refine the actual geological model and for the further geological prospecting objectives.

References

1. Belozerov V.B., Influence of facies heterogeneity of clastic reservoir on the development of hydrocarbon deposits (In Russ.), Izvestiya Tomskogo politekhnicheskogo universiteta = Bulletin of the Tomsk Polytechnic University,

2011, V. 319, no. 1, pp. 123-130.

2. Cosentino L., Integrated reservoir studies, Paris: TECHNIP ed., 2001, 400 p.

3. Belozerov V.B., The role of sedimentation models in electro-facies analysis of clastic sediments (In Russ.), Izvestiya Tomskogo politekhnicheskogo universiteta = Bulletin of the Tomsk Polytechnic University, 2011, V. 319, no. 1, pp. 116-123.

4. Serra O., Sedimentary environments from wireline logs, Paris: Schlumberger technical services, 1985, 211 p.

5. Alekseev V.P., Atlas fatsiy yurskikh terrigennykh otlozheniy (uglenosnye tolshchi Severnoy Evrazii) (Atlas of Jurassic clastic sediments facies (coal-bearing strata of Northern Eurasia)), Ekaterinburg: Publ. of USGU, 2007, 209 p.

6. Tiab D., Donaldson E.C., Petrophysics: Theory and practice of measuring

reservoir rock and transport properties, Gulf Professional publishing, 2012,

950 p.

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