System for detecting the presence of gas formation in a stream of drilling fluid that flows through a hole of the well during drilling of the borehole of a well drilling column, and,

摘要

"System to detect the presence of gas formation in a stream of drilling fluid that flows through a hole of the well during drilling of the well bore and drilling column.A system is presented for detecting the presence of gas formation in a stream of drilling fluid circulating through a hole of the well during drilling of the borehole of a well.The system comprises at least a sensing chamber connectable to a drill column to drill the hole for the shaft.Each sensing chamber containing a volume of a selected gas and having a membrane wall that allows the passage of gas from the current training of drilling fluid to the interior DThe sensing chamber.The sensor is provided to detect a change of a selected feature of the volume of gas due to the passage of gas formation from the stream of drilling fluid through the stopFrom the membrane to the interior of the sensing chamber.