Abstract: Systems, apparatus, and methods for stretching wireline cables are provided. Tension is applied to a wireline within an engagement zone, either while the wireline is static or moving. The tension may be stabilized using a capstan. The wireline may be heated, coated, cleaned, stabilized, bent, or combinations thereof.

Abstract: A method and apparatus for removing permanent stretch characteristics of electromechanical cable by application of predetermined tension to a selected length of electromechanical cable within a cable processing arena. Movement of the cable from a pay-off reel into the cable processing arena and to the take-up reel is controlled by spaced capstans that also secure the length of cable in static position within a cable processing arena during cable stretching. Successive selected lengths of the cable are stretched for dissipating its permanent stretch characteristics and rendering the cable suitable for accurate well logging.