Abstract
A new transmitting pattern, a buried non-symmetrical electric dipole in a conducting half space, is treated theoretically. A simple formula for the stationary current field of this pattern is derived from the Laplace equation and it is confirmed by the laboratory experiments and a well site experiment. This formula gives the upper limit of the electrical signal strength at the surface, transmitted from the bottom of a drill string.
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References
OGJ Report,Second-generation MWD Tool Passed Field Tests, Oil and Gas J.81(8), Feb. 1983.
Chen, Z. Y.,The Report for the Well Site Experiment, Series reports for the feasibility of the electromagnetic wave transmission channel for MWD, Institute of Electronics, Academia Sinica, Beijing, March 1988.
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Chen, Z.Y., Jin, X.Z. The stationary field of a buried non-symmetrical dipole. PAGEOPH 135, 577–587 (1991). https://doi.org/10.1007/BF01772407
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DOI: https://doi.org/10.1007/BF01772407