This paper describes how a technique known as applied-surface-backpressure managed-pressure drilling(ASBP-MPD)can alleviate the limitations of conventional deepwater well control.The paper discusses equipment design and operating philosophy,outlining actions that can be taken to respond to an influx while remaining within the primary well barrier.Industry personnel are trained to follow conventional well-control-response steps when securing a well and closing a subsea blowout preventer(SSBOP)once an influx is detected.The steps are logical from the perspective of adhering to the operating requirements of existing well-control equipment.While variations in procedures exist between companies,the logic behind these steps remains consistent across the industry.The conventional steps are as follows: 1.Stop rotating;pick up off bottom and space out;2.Stop the mud pumps;3.Conduct a static flow check;4.Close the SSBOP.
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