Experimental Design for Surface-to-Borehole Hydrocarbon Applications.

• Kriegshäuser Berthold

  University of Utah, Department of Geology and Geophysics

• Tripp Alan

  University of Utah, Department of Geology and Geophysics

• Tabarovsky Lev

  Western Atlas Logging Services

Bibliographic Information

Other Title

• Experimental Design for Surface-to-Bore

Abstract

We discuss in a simplified surface-to-borehole example the resolution of the coefficient of anisotropy A for an anisotropic layer sandwiched in an isotropic half-space as a function of transmitter-receiver configuration and magnetic field components. Our analysis supposes that the horizontal resistivity of the anisotropic bed has been established by previous logging, and that only horizontal magnetic fields will be used to determine the vertical resistivity. The resolution analysis shows that for the model studied the coefficient of anisotropy λ can be resolved within 10% for a broad range of transmitter-receiver configurations if ∂B_z/∂t and ∂B_y/∂t are used jointly in the interpretation. Using only ∂B_x/∂t or ∂B_y/∂t individually, A can only be resolved for a limited range of transmitter-receiver configurations. A joint interpretation of both horizontal magnetic field components facilitates a better resolution of the coefficient of anisotropy compared to a single interpretation.

Journal

• Journal of geomagnetism and geoelectricity

  Journal of geomagnetism and geoelectricity 49 (11/12), 1659-1676, 1997

  Society of Geomagnetism and Earth, Planetary and Space Sciences

Keywords

• General Earth and Planetary Sciences
• General Environmental Science

Details

• CRID: 1390282681485593984
• NII Article ID: 10002205389
• NII Book ID: AA00698879
• DOI: 10.5636/jgg.49.1659
• ISSN: 21855765
• ISSN: 00221392
• NDL BIB ID: 4406029
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4406029
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed