Authors:
P. Paramasivan, S. Suman Rajest, R. Regin, J. Mohamed Zakkariya Maricar, Saly Jaber
Addresses:
Department of Research and Development, Dhaanish Ahmed College of Engineering, Chennai, Tamil Nadu, India. Department of Computer Science and Engineering, SRM Institute of Science and Technology, Ramapuram, Chennai, Tamil Nadu, India. Department of Analytical Chemistry, Saint Joseph University, Beirut, Lebanon.
This paper proposes a more robust design scheme for an integrated L-shaped directional well casing. L-profile trajectory directional drilling creates complex conditions for wellbore and casing stability, driven by stress distributions and severe doglegging. This paper aims to establish a robust design system that integrates geomechanical parameters, drilling mechanics, and material properties to achieve effective and safe well construction. Researchers propose a process that accounts for repeated burst, collapse, and tension loads across various operating conditions, including drilling, production, and well intervention. The investigation accounts for torque and drag effects, buckling, and wear along horizontal and curved sections of wells. The model was validated with 454 pairs of corresponding drilling and formation parameters of analogous wells. The conclusions confirm that an interactive design, considering casing load distribution and interaction among trajectory design, enhances the reliability of the design to a large extent. The principal findings identify hot spots in the design, i.e., the kickoff position and build interval, where stresses are concentrated. Two plots, viz., an Isosurface stress distribution plot and a dogleg severity vs. casing wear bar-line chart, and two performance Tables under simulated conditions have been graphically depicted in the paper. They are adorned by the analysis, requiring an integrated design process.
Keywords: Directional Drilling; Casing Design; Wellbore Stability; Torque Drag; Build Interval; Dynamic Compensation; Stress Distribution; Dogleg Severity; Isosurface Stress.
Received on: 28/05/2024, Revised on: 08/07/2024, Accepted on: 18/09/2024, Published on: 09/06/2025
DOI: 10.64091/ATIAS.2025.000176
AVE Trends in Intelligent Applied Sciences, 2025 Vol. 1 No. 2, Pages: 59-67