Subterranean barriers including at least one weld

Details Subterranean barriers including at least one weld Subterranean barriers including at least one weld

2007-01-09

2007-01-09

Kreck, John (Department: 3673)

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

C405S129800

Reexamination Certificate

active

10982506

ABSTRACT:
A subterranean barrier and method for forming same are disclosed, the barrier including a plurality of casing strings wherein at least one casing string of the plurality of casing strings may be affixed to at least another adjacent casing string of the plurality of casing strings through at least one weld, at least one adhesive joint, or both. A method and system for nondestructively inspecting a subterranean barrier is disclosed. For instance, a radiographic signal may be emitted from within a casing string toward an adjacent casing string and the radiographic signal may be detected from within the adjacent casing string. A method of repairing a barrier including removing at least a portion of a casing string and welding a repair element within the casing string is disclosed. A method of selectively heating at least one casing string forming at least a portion of a subterranean barrier is disclosed.

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Pearlman, Leslie, “Subsurface containment and Monitoring Systems: Barriers and Beyond,” National Network of Enivornmental Management Studies Fellow for U.S. Enviornmental Protection Agency, Mar. 1999.

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