Expandable steel packers provided
Saltel Xpandable ECP cementing operations
external casing packers are robust expandable
stainless steel devices that can withstand reciprocation and rotation to pass through doglegs and
tight spots. They can be used for any stage cementing operation to provide zonal isolation and prevent
fluid migration in the annulus.
The packer was made up to the casing string, run in, and subsequently set in open hole by applying
pressure in the casing. The pressure caused the integral stainless steel sleeve to expand outward,
conforming to the shape of the borehole. A patented thin layer of bonded elastomer ensured sealing
despite any irregularities in the borehole wall.
Operator cemented 10 wells with 30% saving in packer costs
Ten 5.5-in packers were installed in 9.2-in open holes, at depths ranging from 1,968 ft [600 m]
to 5,577 ft [1,700 m]. The cementing campaign was a complete success. In each well, the packer
isolated the thief zone and enabled cementing operations to resume; cement was pumped back to
surface through a stage collar above the packer. The operator saved 30% in packer costs in addition
to the rig time saved through on-demand expansion and immediate sealing.