| 摘要 |
<p>A sealing apparatus (100) comprises a body (15), a sealing system (30), extrusion rings (42), a cone (70) for supporting the extrusion rings, and a slip member (80) adjacent to the cone at each end of the sealing system. Actuating the sealing apparatus expands the sealing system and causes the slip member to fold outward and engage the tubular. Independent claims are also included for: (a) a method of sealing a tubular (10), comprising running a sealing apparatus into the tubular, applying a force to slip member, expanding the sealing system into contact with an area of the tubular, causing the extrusion ring to fold outward and plastically deform, and causing the slip member to engage the tubular; and (b) a slip and cone assembly functionally expandable to >=25 (preferably >=44)% diametrically.</p> |
