METHOD FOR HYDRAULIC RUPTURING OF DOWNHOLE GLASS DISC

摘要

A method for rupturing a glass disc (50) in a well completion tool located downhole in a section of production tubing (30) includes providing a wellhead isolation tool, or tree saver, to isolate the wellhead Christmas tree, adding a pressurized fluid to the tubing/casing annulus (25) and pumping a disc rupturing fluid into the production tubing via the tree saver until the disc is ruptured. Following rupture, the pump (60) can be rapidly stopped, or slowed, and started to create a water hammer effect that removes any glass shards remaining in the disc holder.