The Scotsman Hydraulic Set Anchor (Scotsman) provides a means of securing liners and bottom hole assemblies in casing or openhole. The Scotsman has a large contact area between the bi-directional slips and the casing or open hole ensuring a high anchoring force and a minimal contact pressure. Despite this the Scotsman is short allowing it to pass through tight dog legs and other restrictions.
An anti-preset mechanism ensures the SHSA will not start to set until a pre-determined differential pressure is achieved. Once at depth the SHSA is fully set by the application of a minimum differential tubing pressure for 30 minutes.
The SHSA incorporates a pull to release feature, the shear value of which can be varied at surface prior to running in hole. This can be replaced for cut to release, shift and pump to release or punch and pump to release.