Research and application of “cement basket” technology in water shut-off without jack-ups: Technical and economic evaluation on production objects at Block 09-1, Cuu Long basin
Abstract
As of now, traditional oil fields operated by Vietsovpetro, such as Bach Ho and Rong, have entered the late stage of production, characterized by declining reservoir pressure and high water-cut levels exceeding 60%. This poses significant challenges for reservoir management, field operations, and production optimization. Sustaining output from these mature fields requires the application of effective and cost-efficient technical solutions. For that purpose, Vietsovpetro has deployed the cement basket technology for water shut-off without the need for drilling rigs, enabling better control of water-cut and contributing to enhanced oil recovery.
This paper presents the application result of the cement basket technology for water zone isolation without jack-ups at Vietsovpetro, encompassing the full process from theoretical basis study, candidate evaluation to field implementation. It also analyzes the technical complexities encountered during the first pilot test for fractured basement reservoirs, evaluates the technical and economic effectiveness of the method, and draws lessons learned to improve the technological performance, future scalability and broader applicability of the technology.
References
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