|When isolation of the water or gas zone is not an option, Halliburton’s BackStopSM Service may be the answer. This system, designed primarily for water shutoff, allows for the entire wellbore in the selected interval to be filled with the slurry and squeezed.
The BackStop Service helps controls unwelcome water production by introducing an exceptionally capable water control agent at the shallow part of the formation around perforation tunnels. Similar to cement squeezes, BackStop service offers additional advantages including the following:
- Slurry is bullheaded into all open perforations, so no need for zonal isolation as with standard sealant jobs.
- Shallow penetration of the filtrate allows for reperforation in the hydrocarbon zone.
- Unlike cement, the BackStop™ slurry remaining in the hole does not require drilling out; simply jet it out with coiled tubing.
- Longer and hotter intervals can be treated in one day, using the time allotted for wash out for placement instead.