Casing (Tubular) Runnability Indicator While Drilling With Real Time Drilling Data

Abstract

Abstract In drilling operations, the quality of the borehole used for casing installation significantly influences the overall smoothness of the drilling process, connecting the geometric aspects of the wellbore with the mechanical system employed. Complex equations, grounded in practical knowledge and real-time drilling parameters, offer a feasible approach to assess the suitability of a given borehole for casing installation in a specific hole size. Key factors such as wellbore tortuosity, borehole torsion, wellprofile energy, casing push-through force, margin of slack-off force, and overpull margin collectively contribute to evaluating the viability of a proposed wellpath for casing installation. The understanding of the expected running conditions during drilling itself will provide opportunities to correct the well conditions rather than running clean out runs or short landing the casing string. In scenarios requiring casing running in curved trajectories or extending to significant lateral lengths, amalgamating operational insights with trajectory parameters has proven effective in gauging operational risks. This approach leverages both experience and quantitative data to estimate the feasibility of casing installation. Moreover, this study delves into the dynamic adjustments of runnability metrics in response to real-time drilling conditions and survey data, enhancing the accuracy of operational assessments. Furthermore, this study extends beyond casing runnability assessments to explore the predictive capabilities of these metrics. By leveraging runnability measurements, operators can anticipate and address various challenges, including intricate stimulation tasks, optimizing artificial lift operations, and identifying potential issues with well servicing. These challenges often stem from undesirable borehole characteristics such as curvature, torsion, and drift, highlighting the multifaceted utility of runnability metrics in optimizing drilling operations and ensuring well integrity.