US Patent 9273528 Flexible sinker bar with electrically conductive wires

An assembly including a flexible sinker bar (24) including an electrically conductive wire (30) for use in the well drilling industry, particularly oil wells, and more particularly for use in assisting introduction into the wellbore, through the drill pipe or tubing, various types of logging tools and other completion assemblies securable to a tool connector (T), such as chemical cutters, string shots, free point indicators, jet cutters, metal severing tools, split shot cutters, radial cutting torches, pipe recovery logs, temperature logs, noise logs, and perforating guns. Conductive wire 30 is used to send electric power to operate or trigger the various logging tools.