Field Trial in South Texas February 2018
Well Abandonment with Wel-lok™ STC
Provide a pressure seal through production casing, sealing against open-hole formation.
1: Issues to overcome
When casing is run and cemented in the well a competent seal is not always created between the cement and the open-hole formation. When abandoning a well, it is important to ensure all annuli are properly sealed.
The production casing was perforated and existing cement was washed out. A Wel-lok™ STC was set inside the casing and through the perforations to provide across the wellbore out to the open-hole formation.
The tool was successfully set and provided a seal against the open-hole formation, proving Wel-lok™ technology could be utilized for annular isolation in open-hole applications.