New Technology of Flow Rate Prediction in Oil and Gas Well Blowout
After an oil and gas well blowout accident,whether the flow rate can be predicted timely and accurate-ly is one of key challenges in the formulation of emergency response plans and decision-making.This paper pro-poses three flow rate prediction methods,including simulation inversion,intelligent image recognition of flow ve-locity,and direct measurement of gas core flow velocity,based on the analysis of the injection behavior of uncon-trolled oil and gas wells.The software and hardware systems for these three prediction techniques have been devel-oped.Large-scale injection simulation experiments show that the prediction accuracy of the gas well blowout vol-ume obtained through direct measurement of gas core flow velocity can reach over 95%.The new developed tech-nology for flow rate prediction realizes the upgrade of quantitative assessment of the injection output of uncon-trolled oil and gas wells from qualitative assessment,which is conducive to further improving the efficiency and safety of blowout accident rescue.
well blowoutflow rate predictionsimulation inversionimage recognition of flow velocitymea-surement of flow velocity