Mini Core Drilling Samples for High Resolution Formation Evaluation on Drilling Cuttings Samples

摘要

An apparatus and method for mini core in drilling samples accumulated in the cups by sample catcher. It allows the explorations to obtain high resolution formation evaluation on drilling cuttings samples. The mini core apparatus includes a narrow tubular with a piston or cap. The thin wall tubular is rotated and/or vibrated and pressed in to the cup with wet sample of drilling cuttings. The piston or cap is placed after the desired depth of sample is reached and the vacuum is re-established. The core is pulled out from the cup and then analyzed within the tubular or squeezed out on a flat tray for horizontal analysis. The micro layering can be visually separated, before they are mixed as in conventional sample and the information is lost.