CASE STUDY The strength of MSE interpretation is put to the test beside an openhole suite that includes density/neutron/GR, dipole sonic and resistivity images. Background In a Powder River Basin subject well, the operator had acquired openhole wireline logs across the entire lateral. Logs included density/neutron/gamma ray (GR), full-wave dipole sonic, and resistivity-based images. The neutron/density/GR readings showed significant lateral heterogeneity. This made the subject well an excellent candidate to benchmark the ability of sonic logs against the MSE-based LateralScience process to detect facies changes and to characterize the lateral. For an explanation of the log presentation format, please refer to the bottom of Page 2. LateralScience SM Method Compares Favorably to a

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