COMPUTER METHOD FOR MODELLING DURING DRILLING AND STRATIFIED UNDERGROUND FRACTION VISUALISATION

摘要

FIELD: physics, measurement. ^ SUBSTANCE: invention concerns methods of electromagnetic signal processing for tool of modelling and visualisation of stratified underground fractions surrounding the tool. Electromagnetic signals corresponding to current position of tool measurement point are obtained for measurement during drilling, and multilayer model is generated by the electromagnetic signals. Histogram describing multilayer model uncertainty is used to generate multiple colour tone values, representing formation property forecasts for depth level over/under the tool, and corresponding multiple saturation values. Screen diagram is generated and displayed. Screen diagram uses colours for visualisation of formation property forecast for depth levels over and under the tool for further positions of measurement point. New column in screen diagram is generated for current measurement point. Colours of new column are based on multiple colour tone and saturation values obtained from histogram. Saturation values of new column represent uncertainties of respective forecasts. ^ EFFECT: modeling and visualisation of underground fraction properties during well drilling. ^ 25 cl, 10 dwg