TY - SER AU - Blackburn,John AU - Daniels,John AU - Dingwall,Scott TI - Borehole seismic surveys: Beyond the vertical profile PY - 2007/// N2 - Today's borehole seismic methods create new opportunities for investigating formations penetrated by a borehole. From well construction and 3D subsalt imaging to stimulation monitoring and high-pressure, high-temperature acquisietion, borehole seismic surveys reduce operator risk and help improve recovery ER -