Method and apparatus for long term seismic monitoring

Details Method and apparatus for long term seismic monitoring Method and apparatus for long term seismic monitoring

G - Physics

01

V

G01V 11/00 (2006.01) G01V 1/52 (2006.01)

Patent

CA 2670974

A method and apparatus for deploying seismic detectors and monitoring seismic activity associated with a production well from a down hole location within a well. The methods and apparatus of the subject invention include in one embodiment a tubing system that is operable to be bowed during placement into a well casing. A' first eccentric bearing member is mounted upon a tubing to be run into a bore hole, cased or open hole. A second eccentric bearing member is also mounted on the tubing in an axially spaced relationship with respect to the first eccentric member and the two eccentric bearing members may have the same azimuthal orientation. A seismic tool is then mounted on a third eccentric bearing member that is mounted on the tubing intermediate the first and second eccentric bearing members at an azimuthal orientation rotated 180 degrees with respect to the first and second eccentric members.

L'invention concerne un procédé et un dispositif pour le déploiement de détecteurs sismiques et le suivi de l'activité sismique associé à un puits de production à partir d'un endroit fond-de-trou à l'intérieur du puits.

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