APB ANTI-HYDRAULIC SEAL BORE

The Anti-Hydraulic Lock Seal Bore is an accessory for use in screen placements and gravel packs. The tool is necessary to facilitate true wash down capabilities with DFS Flow Shoe. When pulling the service string containing seal assembly, the DFS flow Shoe is sucked into a closed position and a hydraulic lock is created. The Anti-Hydraulic Lock Seal Bore incorporates a check valve mechanism that allows the hydraulic lock to be relieved by pulling in fluid from above direction.

Feature

• Relief the hydraulic lock below the seals

• Reliable and stable open pressure

• Reusable due to spring mechanism

Application

• Be mounted between the screen string and DFS flow shoe in casing hole or open hole

• Avoid the hydraulic lock effect when seal assembly to be lift up from seal bore