Effective primary cementing in the wellbore is critical to achieving positive wellbore isolation. This paper discusses an expandable-liner-hanger (ELH) system that provides liner rotation during the liner deployment and the cementing operation while providing a hydraulically energized liner-top seal upon setting. The case histories of the wells using the system verify the key consideration factors presented in this paper, which help improve the quality of the liner cementing bond.
Liner-Hanger System
The ELH system incorporates bonded elastomeric sections. The elastomeric element provides the hanging capacity for the liner and a gas-tight seal.
×
Continue Reading with SPE Membership
SPE Members: Please sign in at the top of the page for access to this member-exclusive content. If you are not a member and you find JPT content valuable, we encourage you to become a part of the SPE member community to gain full access.