Abstract: An image reproduction device (e.g., a photocopy machine) uses carbon nanotube material and a microwave generator(s) to heat internal rollers to “set” image colorant/toner. The ability to rapidly heat the nanotube material with relatively low-power microwave generators permits the development of power efficient image reproduction devices. The principle of heating carbon nanotube material embedded within a roller with microwave energy may also be used in a number of other applications such as, for example, laminating, embossing, drying, annealing, calendering, and film orientation. In these embodiments, the material being processed or heated may be paper, film, plastic, rubber, film and the like.

Abstract: An improved expandable well screen and associated methods of servicing a subterranean well provide enhanced functionality, while increasing the convenience of manufacture and deployment of the screen, and reducing the screen's cost. In one described embodiment of the invention, an expandable well screen includes a pleated woven metal filter element disposed overlying a perforated base pipe. When the screen is appropriately positioned within a well, an expanding tool is utilized to radially enlarge the base pipe and filter element.

Abstract: The invention relates to a method and apparatus for start-up, transformation from start-up to normal operation and normal separation of carbon dioxide and other acid gases from methane using a distillation column with a controlled freezing zone. Normally, the feedstream is treated in at least one distillation zone, a controlled freezing zone, and another acid gas stripping apparatus. The freezing zone produces a carbon dioxide slush which is melted and fed into a distillation section and a methane-enriched stream which is fed to a separate stripping unit. Start-up is accomplished by refluxing the product stream from the separate stripping unit to the distillation column. Transformation is accomplished by separating the methane-enriched stream produced by the freezing zone into a liquid component for refluxing to the column and a vapor component to be fed to the separate stripping unit.

Abstract: A method for logging a cased well to determine the quantity and location of any barite weighted drilling fluid in the annulus between the casing and the wall of the wellbore. A tool assembly having a neutron generator and a gamma scintillation detector is used to log the zone of interest. The neutrons introduced into the well by the neutron generator convert a portion of the barium-138 in the drilling fluid to barium-137m. The magnitude of the gamma photon peak charactristic of the decayof barium-137 is used to identify the quantity of drilling fluid present in the annulus as a function of depth. This method is especially useful identifying the existence of channels in a cemented wellbore annulus.