Hydraulic Stage Collar with BHI Insert
Top-Co Products' stage cementing equipment allows for 2 and 3 stage cement jobs.
This reduces breakdown of weak formations due to high hydrostatic pressure from a tall column of cement and allows for effective zonal isolation around lost circulation zones. It also assists in selectively placing cement over specific casing intervals. Stage collars are available in different casing grades, weights, and thread connections.
Making it better
Stage cementing equipment designed for effective cement placement.
Type 664 - Hydraulic Stage Collar features two internal sleeves that shift during the stage cementing operations. A specially designed upper/closing seat is used to match the nose profile of Baker Hughes (BHI) liner latch-down plug. With this modification, the stage collar can be closed using BHI's liner plugs without any need of modification to the plug nose. The stage collar can be field set to open hydraulically at different opening pressures. This is achieved through the addition or removal of the brass shear screws from the stage cementing tool.
Latch-down insert ensures plug does not get dislodged due to back pressure
Boasts a robust locking mechanism
Consistent shifting pressure that is field adjustable
Externally installed set screws
Standard tools are furnished with API L-80 material suitable for sour gas service
Standard seals rated for -15°F to +400°F and suitable for sour service and high pressure gas environments
Tools can be manufactured with premium connections and special clearance outside diameters
Type 664 Hydraulic Stage Collar with BHI Insert Download