Implementation of Managed Pressures Drilling(MPD)techniques provide substantial advantages foraddressing difficulties in challenging wells.These benefits include not only the early influx and lossdetection,but also Dynamic Influx Management.MPD provides the ability to circulate out an influxat drilling circulation rates while remaining within the primary well control barrier.Dynamic influxmanagement is a trending topic within the industry,with its importance capturing the attention of planningand operational teams,regulatory bodies,and industry interest groups tasked with the development ofrecommended practices.Evolving from conventional kick tolerance to MPD kick tolerance has enableddynamic influx management milestones,such as the adoption of the MPD operational matrix.Morerecently,the novel approach of the Influx Management Envelope(IME)has been increasingly adopted bythe industry.This paper presents the state-of-the-art engineering analysis and operational considerationsfor dynamic influx management during MPD operations.As part of an integrated approach,this workconsiders three main aspects;1)MPD kick tolerance,including concepts and its variables of interest,2)IMEgeneration and parameter sensitivity analysis,3)generation of an MPD operational matrix.In addition,theadvantages and disadvantages of various approaches to determining the limits of dynamic influx circulationare discussed.
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