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U.S. Department of Energy
Office of Scientific and Technical Information

Method and apparatus for hydraulically firing a perforating gun below a set packer

Patent ·
OSTI ID:6754592
This patent describes a packer positionable along a tubing string in a subterranean well bore interior of a casing and above a pressure responsive device, the packer adapted for sealing the annulus between the tubing string and the casing. It comprises: a tubular packer body structurally interconnecting an upper portion of the tubing string having an upper tubing bore diameter and a lower portion of the tubing string having a low tubing bore diameter of substantially the same diameter as the upper portion, and one or more elastomeric packer sealing elements radially exterior of the packer body for sealing engagement with the casing.
Assignee:
Baker Hughes Inc., Houston, TX (USA)
Patent Number(s):
US 4917187; A
Application Number:
PPN: US 7-300795A
OSTI ID:
6754592
Country of Publication:
United States
Language:
English