Analyzing Subsurface Material Properties Using a Laser Vibrometer

摘要

In some aspects, an acoustic analysis system includes an acoustic source and a laser vibrometer. In some instances, the acoustic source can generate an acoustic signal in a wellbore defined in a subterranean region, and the laser vibrometer can detect movement of a surface in the wellbore in response to the acoustic signal. The detected movement can be analyzed, for example, to identify properties of materials in the subterranean region.

主权项

1. A downhole system for use in a wellbore in a subterranean region, the downhole system comprising:
an acoustic source operable to generate an acoustic signal in a wellbore defined in a subterranean region; and a laser vibrometer operable within the wellbore to detect movement of a surface in the wellbore in response to the acoustic signal.