... ABSTRACT Deepwater reservoirs often consist of highly laminated sand shale sequences, where the formation layers are too thin to be resolved by conventional logging tools. To better estimate net sand and hydrocarbon volume in place, one usually needs to rely on high-resolution borehole image...

.... Pre- drill 3-D geo-cellular models were generated to represent possible scenarios that may be encountered with varying N2G (net-to-gross) distributions. These geological models informed the team of the possible range of total net sand outcomes based on a geometrically drilled trajectory. Our...

...SPWLA 50th Annual Logging Symposium, June 21-24, 2009 1 A NEW APPROACH FOR THE REALISTIC EVALUATION OF NET SAND PAY ON IMAGE LOG IN VERY THIN RESERVOIRS OF KRISHNA GODAVARI BASIN, EAST COAST OF INDIA Lalaji Yadav, Tanmoy Dutta, Ashish Kundu and Neeraj Sinha E&P Business, Reliance Industries Limited...

... well in bedded intervals, but was particularly difficult where shale is dispersed or image quality is poor. Net sand counts from core, acoustic images and using petrophysical clay volume (VCL) cut-offs were compared by facies association. Core and image log data are in close agreement (within 5% error...