17550138. SELECTIVE ZONAL ISOLATION simplified abstract (Saudi Arabian Oil Company)
Contents
SELECTIVE ZONAL ISOLATION
Organization Name
Inventor(s)
Mohamed Hassan Sherief of Dhahran (SA)
Ayman Mohammed Almohsin of Dhahran (SA)
Haider J. Abulal of Dhahran (SA)
Mohammed I. Alabdrabalnabi of Al Qatif (SA)
SELECTIVE ZONAL ISOLATION - A simplified explanation of the abstract
This abstract first appeared for US patent application 17550138 titled 'SELECTIVE ZONAL ISOLATION
Simplified Explanation
The patent application describes a method for treating a specific area of a subterranean formation near a wellbore. The method involves cooling the wellbore zone to a lower temperature than the surrounding formation, injecting a treatment composition into the wellbore zone, and allowing it to solidify or "gel" in the region to prevent or reduce the flow of unwanted fluids from the formation into the wellbore zone.
- The method involves cooling the wellbore zone to a lower temperature than the surrounding formation.
- A gellable treatment composition is injected into the wellbore zone.
- The treatment composition solidifies or gels in the region adjacent to the wellbore zone.
- The solidified treatment composition prevents or reduces the flow of unwanted fluids from the formation into the wellbore zone.
Potential Applications
- Controlling the flow of unwanted fluids, such as water or gas, from a subterranean formation into a wellbore zone.
- Preventing the migration of fluids from one region of a formation to another.
- Enhancing the efficiency of oil or gas production by isolating specific zones within a formation.
Problems Solved
- Unwanted fluid flow from a subterranean formation into a wellbore zone can cause operational issues and reduce the efficiency of oil or gas production.
- Migration of fluids within a formation can lead to cross-contamination or interference between different zones.
- Existing methods for treating wellbore zones may not effectively prevent or reduce unwanted fluid flow.
Benefits
- Improved control over fluid flow within a subterranean formation.
- Enhanced efficiency and productivity of oil or gas wells.
- Reduced risk of cross-contamination or interference between different zones within a formation.
Original Abstract Submitted
A method of treating a region of a subterranean formation adjacent a wellbore zone, the method including cooling the wellbore zone to a wellbore temperature below a temperature of the region of the subterranean formation adjacent the wellbore zone, injecting a gellable treatment composition through the wellbore zone into the region of the subterranean formation adjacent the wellbore zone, and allowing the gellable treatment composition to gel in the region to prevent or reduce flow of an unwanted fluid from the region into the wellbore zone.
