| Autor: |
Francesco Martocchia, Damien Deffieux, Nelson Obanor, Francesco Battaglia, Daniele Palumbo, Alessandro Rusconi, Giovanni Ricci, Lucio Passini, Gisela Nhambi, Joaquim Chirindja, Hermenegildo Chituto |
| Rok vydání: |
2022 |
| Zdroj: |
Day 2 Tue, November 01, 2022. |
| DOI: |
10.2118/211568-ms |
| Popis: |
Success in deploying sand control systems is critical to guarantee the integrity of wells during their productive life. This is even more crucial when dealing with ultra-deepwater high-rate gas wells. This paper will describe the challenges and the lessons learned from the successful 2021 completion campaign of X field in East Africa in which six gas producer wells were completed with openhole gravel pack using shunt tubes technology in water depths ranging from 1840 m to 2149 m. The overall completion design philosophy was to rely on field-proven technologies and industry-accepted "best practices" to maximize safety and reliability. This objective was pursued in all phases of the project for timely completion of the wells while minimizing the chance of failure. Extensive testing on formation rock cores and completion fluids was performed before the start of drilling to identify the best sand control strategy and to avoid all potential issues such as formation damage or fluid incompatibility. State-of-the-art completion equipment was selected considering all potential contingencies associated with operations in an ultra-deepwater environment in a remote location. This document will describe the activities carried on during the different phases of the project: design, preparation, execution, and post-job interpretation. The goal of preventing solid production without impairing the well productivity was achieved successfully. This was confirmed from well testing interpretation where neglectable skin was detected. At the same time, it was possible to carry on the completion activities on time and on cost despite the remote location and the challenges related to the ultra-deepwater environment. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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