Bridge Plug with Selectively Opened Through Passage

摘要

A bridge plug with a selectively blocked flow passage is delivered on wireline and pumped down to the desired location and set. A casing pressure test can be performed above the bridge plug while shielding the formation below from excess pressure from the pressure test. To the extent there are producing zones below the bridge plug or adjacent injection wells that could communicate with the borehole, the plug isolates those pressures from below. After the pressure test is completed, a rupture disc is blown in a passage through the bridge plug and flow is then used to deliver completion equipment to a horizontal portion of the borehole and preferably on wireline.

主权项

1. A completion method, comprising:
delivering a plug on a wireline with flow into a borehole; setting said plug at a desired location; initially raising pressure against an uphole side of said plug in the borehole to a first pressure; further raising pressure to a higher pressure than said first pressure to remove a barrier from a passage through said plug; re-establishing flow through said passage to deliver at least one tool for another operation on said uphole side of said plug.