Casing Patch used as a secondary barrier over remedial squeeze perforations
In the event a squeeze job is required, the Saltel Casing patch can be used to isolate perforations after the squeeze job.
Even if the squeeze job is successful in providing a cement barrier, a casing Patch is often used to seal off the perfs to protect the cement from the fluids and pressures of the well bore, and restore casing integrity. If a remedial squeeze job was required on a well that was going to be fractured, the setting of patch would be absolutely necessary to prevent the squeezed cement from being exposed to the Fracturing pressures.
New SPE Paper available SPE-174524
Restoring Casing Integrity with Saltel Expandable Steel Patch This paper (SPE-174524) gives feedback from the field on several operations restoring casing integrity using a Saltel Expandable Steel Patch (SES Patch)….
Successful Patch through Patch Operation
Successful Patch through Patch operation to cover off-depth perforations After a previous split casing repair with Saltel Patch, a second one was successfully installed to isolate off-depth perforations. Large Drift…
Patch prevents sustained casing pressure before shale fracturing
In conjunction with squeeze, Saltel Xpandable patch cures sustained casing pressure (SCP) before multistage stimulation (MSS) Expandable steel Patch prevents sustained casing pressure before shale fracturing The client had bad…