A rubber plug energy storage toe slip sleeve
By integrating the casing and fracturing components into a rubber plug-type energy-storing toe sleeve, the sealing and early opening issues are resolved, improving the efficiency and success rate of cementing operations and enabling the connection between the casing string and the formation, making it suitable for fracturing operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHELFOIL PETROLEUM EQUIP & SERVICES CO LTD
- Filing Date
- 2026-06-05
- Publication Date
- 2026-07-17
AI Technical Summary
Existing toe-end sliding sleeves pose risks such as unverifiable sealing, high internal resistance, and premature opening during cementing operations, affecting cementing efficiency and success rate.
A rubber plug-type energy-storing toe sleeve is provided, which integrates a cylinder, a rubber cup, and a rupture component. The rubber cup scrapes away cement slurry, and the rupture component seals and connects the casing string to the formation after impact pressure, thus solving the sealing problem and meeting the pressure test requirements.
It improves the efficiency and success rate of cementing operations, meets the pressure testing requirements of the entire casing string, ensures the connection between the casing string and the formation, and is suitable for fracturing operations.
Smart Images
Figure CN122407128A_ABST