Methods of delaying well destruction due to subsidence

Details Methods of delaying well destruction due to subsidence Methods of delaying well destruction due to subsidence

1997-01-03

1998-08-04

Neuder, William P.

Wells

Processes

175 72, E21B 4300

Patent

active

057879834

ABSTRACT:
The present invention provides methods of delaying the destruction of a well as a result of the movement of a subsiding subterranean rock formation penetrated by the well bore. In accordance with the methods, a slot is cut into the subterranean formation in a direction opposite the direction of movement of the formation towards the well bore whereby the well bore extends through the slot as the subterranean formation moves.

REFERENCES:
patent: 5337825 (1994-08-01), Marmerstein et al.

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