Quantilying the Impact 01 Structural Uncertainties on Gross-Rock Volume Estimates

@inproceedings{SamsonRM1996a,
 abstract = { Il is a corn mon experience among geoscienlists Ihal slructural uncertainties are crucial, especially when development decisions have 10 be taken on Ihe basis of a small number of wells and a 3D sei smic interpretalion. Changes in the approach used for lime-todepth conversion and, to a lesser degree for hori zon picking, may significantly impact Ihe value of the Gross-Rock Volume (GRV). The melhods presented here assume that maps of uncertainty on Ihe lime pick and on the average velocity have been produced, and they solve Ihe problem of evaluating the impact of these uncerlainly maps on GRV uncertainties. The methods proposed consist of generating "possible" error maps Ihat are ail within the range provided by uncerlainty maps. A "possible" depth map is obtained by adding an error map 10 the reference case. A simulated GRV can then be compuled between the simulated top of the rescrvoir, the base of the rcservoir (deduced by adding a thickness map to the simulated top, a Ihickncss uncertainty may have been accounted for) and the Hydrocarbon-Water Contact (HWC) (ilS depth may have been simulated). By iterating many limes (several hundrcds) histograms and expeclalion curves of the GRV can be derived. },
 author = { Samson, Philippe AND Dubrule, Olivier AND Euler, Nicolas },
 booktitle = { 13th gOcad Meeting },
 month = { "june" },
 publisher = { ASGA },
 title = { Quantilying the Impact 01 Structural Uncertainties on Gross-Rock Volume Estimates },
 year = { 1996 }
}