DEEP-WATER DRILLING GAS KICK PILOT-SCALE APPARATUS

A deep-water drilling gas kick simulation experimental apparatus, comprising: a simulation wellbore having an upper wellbore transitioned to a lower wellbore through a variable cross section; a drilling tool with an annular space formed between the drilling tool and the simulation wellbore; a gas-injection system, comprising an air compressor and a gas-injection pipeline; a mud circulation system, comprising a mud supply source, a first pump, a second pump, and a mud-return pipeline; a Coriolis mass flowmeter provided on the mud-return pipeline; a Doppler sensor installed on the upper wellbore; and a built-in pressure gauge carrier connected between a drill pipe and a drill bit. The embodiments of the present disclosure have the comprehensive monitoring functions of monitoring the gas kick at the wellhead, the drilling riser, and the downhole, thereby providing accurate, large, and multiple data for establishing a high-performance early warning machine learning model.