Abstract: A plug system includes a lower plug, an upper plug, and a sleeve configured to be positioned at least partially within the lower plug, the upper plug, or both. The sleeve defines one or more channels in an outer surface thereof. The sleeve is configured to shift axially from a first position into a second position with respect to the lower plug. In the first position, fluid is prevented from flowing through the one or more channels. In the second position, the fluid is permitted to flow through the lower plug via the one or more channels.

Abstract: A stage tool apparatus is described. In several exemplary embodiments, the stage tool apparatus is part of tubular string or casing positioned within a preexisting structure such as, for example, a wellbore.

Abstract: A stage tool apparatus is described. In several exemplary embodiments, the stage tool apparatus is part of tubular string or casing positioned within a preexisting structure such as, for example, a wellbore.

Abstract: An automated negative scanner that sequentially positions photographic image-bearing negative film relative to an image gathering device which electronically captures a negative film image and digitizes the image without relying on DX code information regarding exposure conditions. The automated scanner comprises a feed spool and a take-up spool for image-bearing negative film, each spool connected to a motor for rotational movement wherein the feed spool and take-up spool are separated by a negative capture area, and wherein the feed spool holds a plurality of negative film rolls spliced together. The negative capture area contains a belt transport to transport the negative film and two dancer rollers connected to a tensioned lever arm each separately associated with both of the feed spool and take-up spool wherein the dancer rollers separate the rollers rotational movement from the transport of the film in the negative capture area.