Apparatus and method to communicate information in a borehole

Details Apparatus and method to communicate information in a borehole Apparatus and method to communicate information in a borehole

E - Fixed Constructions

21

B

166/3

E21B 47/022 (2006.01) E21B 47/12 (2006.01)

Patent

CA 1195919

APPARATUS AND METHOD TO COMMUNICATE INFORMATION IN A BOREHOLE ABSTRACT OF THE DISCLOSURE The invention concerns efficient transmission of borehole survey signals or data from depth level in a borehole or well to the well surface, for analysis, display or recordation; further it concerns supply of DC power downwardly to the instrumentation via the same wireline via which such survey data or signals are transmitted upwardly.

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