cement channeling

cement channeling

[si′ment ‚chan·əl·iŋ]
(petroleum engineering)
A failure during cementing of the casing to the formation whereby the cement slurry does not rise uniformly, leaving open spaces and thus preventing a strong bond.
References in periodicals archive ?
In these instances, no cementing technique could resolve the problem so a WAB was deployed in the open hole in conjunction with cement, the WABs preventing crossflow between two zones that previously led to cement channeling and failure.
Environmentalists, though, have fought long and hard to keep the Santa Clara River, the last wild waterway in Southern California, free from cement channeling.
Whether the hydrocarbons escaped through the annulus or the casing, the decision to use an inadequate number of centralizers remains relevant because cement channeling can provide a flow path of hydrocarbons into the wellbore.