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Selective Zonal Isolation in Horizontal Wells Using Colloidal Nanosilica
Ayman M Almohsin1, Mohammed I Alabdrabalnabi1, Mohamed H Sherief1
1Saudi Aramco, EXPEC ARC, Dhahran 31311, Saudi Arabia.
ACS Omega
|February 24, 2025
Summary
A novel nanosilica fluid system effectively reduces water production in oil wells, enhancing oil recovery and operational efficiency. This innovative solution offers a controlled and adaptable approach to water management challenges in the oil and gas industry.
Area of Science:
- Petroleum Engineering
- Materials Science
Background:
- Excessive water production is a major challenge in the oil and gas industry, reducing oil recovery and complicating field operations.
- Traditional water shutoff methods often have limitations and can lead to post-treatment complications.
Purpose of the Study:
- To develop and evaluate a novel in-house nanosilica fluid system for mitigating water production in oil wells.
- To optimize the nanosilica system's parameters for maximum efficiency in laboratory and field applications.
Main Methods:
- Development of a proprietary nanosilica fluid system.
- Laboratory testing to optimize parameters like activator concentration, temperature, gelation time, and pumping rates.
- Field application and performance evaluation of the optimized nanosilica system.
Main Results:
- Optimized nanosilica fluid system parameters for efficient water shutoff.
- Demonstrated substantial reduction in water production in field applications.
- Observed enhanced oil output and improved operational efficiency post-treatment.
Conclusions:
- The developed nanosilica fluid system is an effective and adaptable solution for water shutoff in oil wells.
- This innovative approach offers advantages over traditional methods, reducing risks and costs.
- Nanosilica presents a promising and flexible tool for water management in the oil and gas sector.
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