Downhole library of master wavelets for VSP-while-drilling...

Details Downhole library of master wavelets for VSP-while-drilling... Downhole library of master wavelets for VSP-while-drilling...

2007-09-25

2007-09-25

Bui, Bryan (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Earth science

C703S001000

Reexamination Certificate

active

10746072

ABSTRACT:
A controllable seismic source is used in a seismic-while-drilling system for obtaining VSP data. Coded information is sent downhole about the signal generated by said controllable source. The information about the seismic source is used for reconstructing the source waveform and processing the VSP data. Optionally, a reference signal measured at one depth of the BHA is used for processing of signals at subsequent depths.

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