Eliminating Top Hole Stuck Events in the 12.25 Inch Top Hole Section in Marmul-RTQ Fields
Authors
Mohamed Shahdad Al Balushi; Khalil Al Zakwani; Yasser Al Balushi; Abdul Sallam Al Kendi; Abdulla Braiki; Salim Ghafri; Suleiman Abri; A Wahid; Mohamed Tariq
Publisher
SPE - Society of Petroleum Engineers
Publication Date
May 12, 2025
Source
SPE Conference at Oman Petroleum & Energy Show, Muscat, Oman, May 2025
Paper ID
SPE-225207-MS
Abstract
Top Hole Stuck events present significant challenges to drilling operations, particularly in regions characterized by weak formations and shallow depths, such as the Surface Sediments found in the Sultanate of Oman Field A, Field B, Field C, and Field D fields. These events can lead to significant non-productive time (NPT), increased operational costs, and even potential well abandonment. This paper presents a comprehensive study conducted between Q3 2022 and Q2 2024, focusing on eliminating such events through the application of Lean methodologies and structured problem-solving techniques. By utilizing an Is/Is Not analysis, Fishbone Diagrams, and the 5 Whys methodology, key root causes such as geological variability, high motor vibrations, and the lack of updated sediment studies were identified.
A detailed implementation of Rotary BHA, updated Standard Operating Procedures (SOPs), and real-time monitoring systems was piloted across 17 wells, demonstrating their effectiveness in achieving zero stuck events and a cost avoidance equivalent to approximately 8.64% of a new well construction cost. The study highlights the value of Lean principles in addressing repetitive operational challenges and optimizing drilling performance. The methodology and results offer a scalable model for other fields facing similar challenges, demonstrating that integrating Lean principles with advanced drilling technologies can significantly improve well delivery efficiency and minimize risks.
This research contributes to a growing body of knowledge emphasizing process optimization in drilling operations. The findings provide an actionable roadmap for reducing stuck pipe incidents, enabling industry professionals to make data-driven decisions that enhance overall drilling reliability and cost-effectiveness. Additionally, the study presents a case for industry-wide adoption of Lean methodologies in tackling other common drilling challenges beyond stuck pipe incidents.