3D Reservoir Study for Yamama Formation in Nasirya Oil field in Southern of Iraq
( Vol-4,Issue-11,November 2017 )

Salman Z. Khorshid, Ghazi H. Al-Sharaa, Maha Fadel Mohammed


Seismic Inversion , Synthetic seismogram, Check Shot correction, The wavelet, Synthetic trace, Structural pictures of the picked horizons, Low frequency model LFM (Initial model), Inversion results.


Nasriya oil field is located at the Southern part of Iraq, this field is a giant and prolific, so it take a special are from the Oil Exploration Company for development purposes by using 3D seismic reflection. The primary objective of this thesis is to obtain reservoir properties and enhance the method of getting precise information about subsurface reservoir characterizations by improving the estimation of petrophysical properties (effective porosity, P-wave, water saturation and poisson’s ratio). There are five wells in the study area penetrated the required reservoirs within Yammam Formation. The Synthetic seismogram of Nasriya wells were created to conduct well tie with seismic data. These well tie was very good matching with seismic section using best average statistical wavelet. Five main horizons were picked from the reflectors by using synthetic seismogram for wells then converted to structural maps in depth domain by using average velocity of five wells. By using petrel program TWT maps have been constructed from the picked horizons, Average velocity maps calculated from the wells velocities survey data and the sonic log information and Depth maps construction was drawn using Direct time-depth conversion and the general trend of these map was NW-SE. The model of low frequency was created from the low frequency contents from well data and the five main horizons were picked. The seismic inversion technique was performed on post-stack three dimensions (3D) seismic data in Nasriya oil field.

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[1] O.E.C., (2007), Integrated reservoir study updating of Nasriya field , oil exploration company, unpublished study.
[2] Al-Ameri, T. K., (2010), Petroleum systems in Iraqi oil field lectures presented in department of geology, University of Baghdad, (Extended Abstract).
[3] Hampson-Russell, (1999), 2D and 3D Post-Stack Seismic Modeling, Processing and Inversion.
[4] Hampson, D. P., Schuelke, J.S., Quirein, J.A., (2001), Use of multiattribute transforms to predict log properties from seismic data, Geophysics, January-February, vol. 66, no. 1, PP. 220-236.
[5] Hampson-Russell, (2007), pre and post stack Seismic Inversion Workshop.
[6] Al-Rahim, Ali, M. and Hashem, H., A., (2016), Subsurface 3D Prediction Porosity Model from Converted Seismic and Well Data Using Model Based Inversion Technique, Iraqi Journal of Science, Vol. 57, No.1A, pp: 163-174.
[7] Brown, A. R., (1999), Interpretation of three dimensional seismic data, AAPG Memoir 42: AAPG, Tulsa, SEG Investigations in Geophysics No. 9, 514 p.
[8] Geotz, J.F., Dupal, L. and Bowler, J. (1979), An investigation into discrepancies between sonic log and seismic check shot velocities. Journal of the Australian Petroleum Exploration Association, 19, 131141.
[9] Liner, C., C.-F. Li, A. Gersztenkorn, and J. Smythe, (2004), SPICE: A new general seismic attribute: 72 Annual International Meeting of the Society of Exploration, Geophysicists Expanded Abstracts, PP.433-436.
[10] Cariolaro, G., (2011), Unified Signal Theory, Springer, 927 P.
[11] Etris, E. L., Crabtree, N. J. and Dewar, J., (2001), True Depth Conversion, Canada Society of Exploration Geophysicists, pp. 11-22.
[12] Russell, B., and Hampson, D., (2006), The old and the new in seismic inversion, CSEG RECORDER 5.
[13] Lindseth, R.,( 1979), Synthetic sonic logs – a process for stratigraphic interpretation: Geophysics, vol. 44, pp. 3-36.
[14] Barclay, F., Bruun, A., Rasmussen, K. B., Alfaro, J. C., Cooke, A., Cooke, D., Salter, D., Godfrey, R., Lowden, D., McHugo, S., Ozdemir, H., Pickering, S., Pineda, F. G., Herwanger, J., Volterrani, S., Murineddu, A., Rasmussen, A., and Roperts, R., (2008), Seismic inversion reading between lines, Spring.
[15] Latimer, R.B., Davison, r., Van Ril, p., (2000), An Interpreters Guide to Understanding and Working with Seismic-Derived Acoustic Impedance Data, The Leading Edeg, 19#3, 242 P.