Oil & Gas Geology ›› 2011, Vol. 32 ›› Issue (2): 287-292.doi: 10.11743/ogg20110218
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Abstract: Oil/gasbearing area and net pay thickness are the two key parameters for reserve calculation of fluvial sandstone reservoirs in Bohai oilfield. Quality seismic data and logconstrained seismic inversion technology were used to predict the area and thickness of oil/gasbearing sandbodies with accuracy over 80%. The abundant formation pressure data available were used to predict oil/gaswater contacts. The prediction results coincide well with the measured data, effectively enhance the accuracy of oil/gasbearing area for reserve calculation. Sidewall core data and formation pressure data were used to determine the lower limit of net pay thickness. The ΔSP/ΔRxo was used to identify low resistivity oil layers and the accuracy is up to 100%.
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URL: http://ogg.pepris.com/EN/10.11743/ogg20110218
http://ogg.pepris.com/EN/Y2011/V32/I2/287