A complete section of a conventionally drilled core. The section may be up to about 2 feet (0. 6 m) in length, with typical core diameters lying between 1. 75 and 5. 25 in. (4. 4 and 13. 3 cm). The term full-diameter core is also used, but generally refers to shorter sections of about 6 in. (15 cm). The advantage of whole core analysis is that it measures properties on a larger scale, closer to that of the reservoir. This is particularly important for heterogeneous formations such as many carbonates or fractured materials.