Process for segmenting reservoir pores
AssigneeUniversity of South Carolina
InventorsRobert Ehrlich, Sterling J. Crabtree, Jr.
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Abstract
Light transmitted through a thin section of reservoir rock whose pores are filled with blue-dyed epoxy is passed sequentially through red, blue and green filters and the density levels in the filtered images thereafter converted into pixels. The intensity, hue and saturation are then calculated from the red, blue and green components in each scene pixel. From the calculated values of intensity, hue and saturation, the pixels representative of pores and pores underlain by mineral are separated from the non-pore representative pixels.
Claims7
A process for segmenting one state from one or more other states made up of pores and minerals in a reservolr rock sample comprising the steps of impregnating the sample with a pigmented plastic material to provide an observable color characteristic, illuminating the sample with light, passing the light transmitted by the sample through a plurality of color filters to provide filtered images of different color components, converting density levels in the filtered images into scene pixels, calculating hue from the different color components in each scene pixel, comparing the calculated hue against the hue of an observable color characteristic of the one state and separating the pixels based on the correspondence between the calculated hue and the hue of the observable color characteristic of the one state.
Dependencies are inferred from the claim text.