Off-bottom cementing above uncemented openhole completion
Ensure high pressure resistant annular barrier before OHMS fracturing operations or above screens with Saltel Steel Packers
Annulus cementing is essential as a primary well barrier to secure the environment, and ensure the efficiency of high pressure stimulation operations below.
Effectively placing primary cement above an uncemented completion can be difficult. This is particularly challenging when the well will be subjected to high pressure stimulation (fracturing) and a complementary high presssure annulus barrier is required below the cement.
Saltel Steel Packer combined with a stage collar or a DV Tool is run as part of the production string. The Packer can be set inside the previous casing shoe, or in the open hole below. The cement is pumped through the stage collar and placed above the expanded packer.
After closure of the cement port, the casing integrity is restored, allowing high pressure stimulation to be performed. The packer acts as an additional barrier to both seal the annulus and protect the cement.
Available Product Range
|Product line||Saltel Steel ECP-C||Saltel Steel AZIP-C 1-0|
|Valve system||Lock valve closing permanently packer expansion port and trapping fluid inside packer||Lock valve closing permanently packer expansion port + Annulus compensation valve (one side)|
|Sealing System||Deformable steel sheath with elastomer seal|
|Benefits||Reliability||Life of well valve system||Life of well (Sweet and Sour environment)|
|Performance||High DeltaP achieved with moderate setting pressures||Self energized High pressure differential from one direction Unaffected by temperature variations|