Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Patent
1991-07-16
1993-02-23
Suchfield, George A.
Wells
Processes
Perforating, weakening, bending or separating pipe at an...
166 55, 166 665, 166 751, 166379, E21B 3302
Patent
active
051881772
ABSTRACT:
A well-head pipe of a leaking oil well is sealed by radial application of a high-energy magnetic pulse to the well-head pipe to thereby plastically deform the metal of the pipe casing and form the metal into a seal that caps the well-head pipe without cracking the pipe. A system for sealing an oil-well-head pipe having a metal casing includes an electromagnet dimensioned for placement around an exposed portion of the well-head pipe, with the electromagnet being disposed to radially apply a magnetic field to the pipe when the electromagnet is placed around the exposed portion of the pipe; and a capacitor bank and a transmission line for providing a high-energy current pulse to the electromagnet to cause the electromagnet to radially apply a high-energy magnetic pulse to the pipe to plastically deform the metal of the pipe casing and form the metal into a seal that caps the well-head pipe.
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Callan Edward W.
Suchfield George A.
The Titan Corporation
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