Title: Response simulation and application of electromagnetic wave resistivity measurement-while-drilling tool with tilted coil
Abstract: The azimuthal response of electromagnetic wave resistivity measurement while drilling with tilted coil was computed via the dyadic Green's function produced by magnetic dipole in a horizontally stratified anisotropic media. The directional phase difference and amplitude ratio signal were defined in a new way. The detection characteristics of apparent resistivity and directional signals were analyzed. The response rules affected by formation boundary,formation contrast ratio,relative dip,anisotropy and coil's tilting angle were obtained. The rule shows that the tool with tilted coil can be used not only to make formation evaluation through apparent resistivity,but also to detect upper and lower boundary of formation using directional signals. Compared with traditional electromagnetic wave resistivity tool,it has better application in formation evaluation and geosteering with more broad application prospects.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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Cited By Count: 1
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