Abstract: This disclosure may generally relate to operations performed in a wellbore. More particularly, systems and methods may be provided for measuring the position of a tool and/or tubular string downhole. The present disclosure may be able to determine an accurate position change in a downhole tool without requiring surface equipment manipulation during measurement acquisition. A position measurement system may comprise a position measurement tool, wherein the position measurement tool comprises a sensor module and a telemetry module; and a marker, wherein the marker emits a signal measured by the sensor module.

Abstract: The spinner is formed of a thin film of a type and gauge that normally retains its shape but at the same time is flexible. The spinner has shrink points on opposite side edges of the rounded end portions which are offset from each other relative to the center of the body portion and which due to the distortion of the material at the shrink points form propeller-like, cupped end portions. In the method of forming the spinner, the blank is cut with the rounded end portions and narrowed body portion. The blank is formed into a propeller-like spinner with cupped blades and a propeller pitch by shrinking the film at points of the rounded end portions which are offset from each other and on opposite sides of the longitudinal center.

Abstract: A cooled resistor pack for a dynamoelectric machine wherein cooling water is passed through ducts in a conductive block and plurality of connectors are mechanically attached to the conductive block but electrically insulated therefrom and nichrome wires of varying length and varying in number electrically join the connectors to the conductive block and individually insulated brush segments, which have individual strands and the brush segments are connected to separate connectors in such a manner that the resistance between the brush segments and the block decreases from the trailing end segments to the leading end segments of the brush.