Bohai Bay Basin, China Quantifying the reservoir heterogeneity: A case study of clastic reservoirs

Summary: Accurate high resolution reservoir models are critical to better understanding of the reservoir heterogeneity for enhanced oil recovery. We define three parameters, permeability dart coefficient (SK), variation coefficient (VK) and contrast coefficient (NK), to characterize quantitatively the heterogeneity levels. Incorporation of these parameters in reservoir facies models proves to help build the quantitative reservoir heterogeneity models, including detailed delineation of intrabedded and interbedded heterogeneity within the reservoir. This method has been successfully tested in two pilot areas in the Bohai Bay Basin using core and log data and greatly enhanced the thermal production. Further upscaling of these heterogeneity parameters from log to seismic scale and their seismic signature identification will enable us to predict the reservoir connectivity in interwell regions.

Quantifying the reservoir heterogeneity: A case study of clastic reservoirs, Bohai Bay Basin, China Academic Article