E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/00 (2006.01) E21B 47/12 (2006.01) G01V 3/30 (2006.01) H05K 9/00 (2006.01)
Patent
CA 2363534
A shielding method and apparatus for providing predetermined attenuation of one or more electromagnetic energy field components as the field components interact with the shield. The shield composed of a flexible strip or cylindrical body and respectively comprising a transverse conductive element or a transverse slot therein. The shields being adapted to cover an antenna mounted on a support. The shields being compatible for use in conjunction with saddle, tilted coils or multi-layered tri-axial coils to produce a pure transverse magnetic dipole electromagnetic field.
Omeragic Dzevat
Rosthal Richard A.
Seydoux Jean
Schlumberger Canada Limited
Smart & Biggar
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