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Interpretation of Log Data in Thin-Layered Bed of Clastic Sediments in Western Siberia
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Tyumen 2017, Mar 2017, Volume 2017, p.1 - 6
Abstract
Anisotropic rocks are thin layers from a few millimeters to a few tens of centimeters. Since the thin layers are beyond the resolution of logging tools, their interpretation has a number of difficulties. Normally log measurements are averaged in such intervals, and regular analysis usually underestimates the porosity, resistance and, as a consequence, oil saturation in thinly interbedded sediments. As a result, potentially productive intervals are often classified as unprofitable or skipped entirely.
The properties of this type of complex reservoir should be assessed using a special technique of interpretation. This paper presents a methodology for the interpretation of thin-layered sediments, based on the application of Thomas-Stieber and Klein palletes, and shows the practical work carried out by the proposed method.