Wellbore Signal Monitor with Tangential Seismic Sensors for Tube-Wave Noise Reduction

摘要

A sensor array is positionable in a wellbore penetrating a subterranean formation. The sensor array includes a plurality of seismic sensors disposable about a perimeter of the wellbore and coupleable to a signal measurer with a configuration to provide three component seismic signal measurement within the wellbore. At least two of the seismic sensors are located at different azimuthal angles relative to one another and oriented tangentially to a longitudinal axis of the wellbore so as to receive tangential components of wellbore seismic signals to the exclusion of longitudinal and radial components of the wellbore seismic signals.

主权项

1. An assembly positionable in a wellbore penetrating a subterranean formation, the assembly comprising:
a downhole tool having a housing with a perimeter and a longitudinal axis; a plurality seismic sensors positioned about the perimeter and coupled to a signal measurer with a configuration to provide three-component seismic signal measurement within the wellbore, each of at least two of the plurality of seismic sensors being located at a different azimuthal angle relative to one another and being oriented tangentially to the longitudinal axis so as to receive tangential components of wellbore seismic signals to an exclusion of longitudinal and radial components of the wellbore seismic signals.