Dedicated perforatable nipple with integral isolation sleeve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 8, 1994
Grant Date -
N/A
app pub date -
Sep 24, 1992
filing date -
Sep 24, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A production nipple is suspended within an uncased bore hole in a slimhole/monobore completion. A deposit of cement is conveyed through the nipple and is spotted in the annulus across the face of the uncased well bore, with the nipple and cement deposit thereafter being perforated by a small diameter perforating gun. The production nipple has a thin walled section which is characterized by reduced resistance to perforation by a shaped explosive charge. The perforating gun is accurately positioned in registration with the dedicated nipple section by an annular locator slot formed on a coupling sub, which is engagable by a resilient latch arm carried by the perforating gun.
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