We present the results of a seismic-while-drilling (SWD) survey performed using the working drill-bit as a seismic source in a Geothermal well in the U.S. (Gabbs Valley, NV). The SWD method was tuned and adapted for geothermal exploration purposes, to provide while-drilling and after-drilling geophysical results. These consist of the while-drilling prediction of obstacles and structural variations ahead of the bit by means of single-offset vertical seismic profiles (VSP) and multi-offset VSP. They also include interpretation of selected diffractions as related to faults, and the imaging of the well area by SWD data migration. The SWD results are compared to the other well information, and are in agreement with the drilling and interpreted geological data.

Seismic While Drilling for Geophysical Exploration in a Geothermal Well

Corubolo P;Schleifer A;Farina B;
2011

Abstract

We present the results of a seismic-while-drilling (SWD) survey performed using the working drill-bit as a seismic source in a Geothermal well in the U.S. (Gabbs Valley, NV). The SWD method was tuned and adapted for geothermal exploration purposes, to provide while-drilling and after-drilling geophysical results. These consist of the while-drilling prediction of obstacles and structural variations ahead of the bit by means of single-offset vertical seismic profiles (VSP) and multi-offset VSP. They also include interpretation of selected diffractions as related to faults, and the imaging of the well area by SWD data migration. The SWD results are compared to the other well information, and are in agreement with the drilling and interpreted geological data.
978-161839482-8
Borehole, Geophysics; Imaging, Seismic, While drilling; Geophysical and Gepthermal exploration
File in questo prodotto:
File Dimensione Formato  
GRCVol35.pdf

Riservato

Tipologia: Altro materiale allegato
Licenza: Non specificato
Dimensione 1.18 MB
Formato Adobe PDF
1.18 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.14083/5054
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 10
  • ???jsp.display-item.citation.isi??? ND
social impact