Successful application of PROMILL technology for oil well isolation in Kazakhstan
- Authors: Yermekov M.1, Mustafin T.1
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Affiliations:
- Wellbore Integrity Solutions
- Issue: Vol 7, No 2 (2025)
- Pages: 51-60
- Section: Oil and gas field development and exploitation
- URL: https://journals.rcsi.science/2707-4226/article/view/310168
- DOI: https://doi.org/10.54859/kjogi108842
- ID: 310168
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Abstract
The article presents the known technological causes of the overflow of the water-gas mixture and reservoir fluid in the behind-the-casing space of a cemented oil and gas well and through a cement plug, and the complications to which they can lead.
Continuous work to improve well abandonment technology allowed Wellbore Integrity Solutions to create a highly efficient ProMILL™ system in 2016. The ProMILL system combines a Bridge Plug assembly, a Section Mill, and a high-ratio Underreamer to prepare the foundation for a cement barrier in a single run. During the milling and expansion process, it eradicates all leak paths from the cement fill, while achieving continuous, reliable rock-to-rock zonal isolation.
Was presented the results of the successful execution of the First ProMILL Job in Kazakhstan onshore - successful deployment of the 5500 ProMILL for high-grade section milling and outer casing ID scraping in one trip.
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##article.viewOnOriginalSite##About the authors
M. Yermekov
Wellbore Integrity Solutions
Author for correspondence.
Email: milbor090@gmail.com
ORCID iD: 0009-0003-1106-2514
Doct. Sc. (Engineering)
United States, HoustonT. Mustafin
Wellbore Integrity Solutions
Email: timur.mustafin@wellboreintegrity.com
ORCID iD: 0009-0003-4105-3328
United States, Houston
References
- Chukwuemeka AO, Oluyemia G, Mohammed AI, Njuguna J. Plug and abandonment of oil and gas wells – A comprehensive review of regulations, practices, and related impact of materials selection. Geoenergy Science and Engineering. 2023;226:211718. doi: 10.1016/j.geoen.2023.211718.
- wellboreintegrity.com [Internet]. ProMILL™ Milling and Underreaming System WIS [cited 2025 Feb 12]. Available from: https://www.wellboreintegrity.com.
- wellboreintegrity.com [Internet]. Well Abandonment & Slot Recovery Systems, 2024 [cited 2025 Feb 12]. Available from: https://www.wellboreintegrity.com/RedBaron.
- blog.wellcem.com [Internet]. Plug and abandonment of oil and gas wells: Different materials, 2017 [cited 2025 Feb 17]. Available from: https://www.blog.wellcem.com.
- wellboreintegrity.com [Internet]. Sustained Casing Pressure Brochure [cited 2025 Feb 17]. Available from: https://www.wellboreintegrity.com/RedBaron.
- wellboreintegrity.com [Internet]. Expanding into New Regions: Successful Execution of the First ProMILL™ Job in Central Asia – Kazakhstan Onshore [cited 2025 Feb 20]. Available from: https://www.wellboreintegrity.com.
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