Probabilistic Approach to Risk Assessment of Managed Pressure Drilling in Offshore Applications. Technology Assessment and Research Study 582. Final Report

摘要

Managed Pressure Drilling is an adaptive drilling process used to precisely control the annular pressure profile throughout the wellbore. The objectives are to ascertain the downhole pressure environment limits and to manage the annular hydraulic pressure profile accordingly. The intention of MPD is to avoid continuous influx of formation fluids to the surface. Any influx incidental to the operation will be safely contained using an appropriate process.