Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature
Patent
1988-03-25
1990-03-06
Dang, Hoang C.
Wells
Means for perforating, weakening, bending or separating pipe...
With disparate below ground feature
166 551, 166117, 166297, 166377, E21B 43117
Patent
active
049057596
ABSTRACT:
The described invention includes an apparatus for perforating a well through use of one or more perforating guns in a collapsible perforating assembly. The collapsible perforating assembly includes a collapsible spacer mandrel which may be placed between two or more perforating guns. The spacer mandrel will be adapted to keep the guns in a desired spaced relationship prior to actuation of the guns. After actuation, the gun spacer assembly will be allowed to telescopically collapse in length. When the perforating assembly is then released from the tubing string and dropped to the bottom of the well, the assembly will collapse, decreasing the amount of rat hold necessary to accommodate the perforating assembly.
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George Kevin R.
Haugen David M.
Wesson David S.
Dang Hoang C.
Halliburton Company
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