Fine Scale Clastic Reservoir Characterisation And Uncertainty Quantification—A Case Study Offshore Sarawak

This paper presents a stochastic inversion case study carried out on a mature field, offshore Sarawak. This study is an attempt to overcome a few data limitations. Firstly, the resolution of the seismic data at the target depth is well above the required resolution of 5–10 m. Secondly, localised poor quality pockets in the seismic data created uncertainties in the well depth to time relationship. Also, an initial test of stochastic inversion showed that the number of surfaces required to constrain the target interval were not sufficient and created incorrect geobodies. This paper details how these issues were addressed.