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

Method and apparatus for perforating a well

Patent ·
OSTI ID:6728028
This patent describes a well penetrating a subsurface formation. It comprises: suspending a perforating gun from a tubing string in the well, the perforating gun placed proximate the formation; placing a pump assembly in the tubing string; operating the pump assembly to produce a preselected pressure imbalance between a well annulus, which surrounds the perforating gun, and the tubing string; actuating the perforating gun to perforate the formation the perforating gun being actuated by the preselected pressure imbalance; utilizing the pump assembly to pump fluid from the formation.
Assignee:
Halliburton Co., Duncan, OK (USA)
Patent Number(s):
US 4917189; A
Application Number:
PPN: US 7-147972A
OSTI ID:
6728028
Country of Publication:
United States
Language:
English