Abstract: A method and apparatus are disclosed for producing a gravity separated well in which water and oil are permitted to separate under the influence of gravity. A pumping unit, including an oil pump and a water pump, is positioned in the well. A drive motor may be close coupled with the pumps. The pumping unit may be positioned in the oil region, the water region or in an interface region therebetween. A discharge line extends from the oil pump to a location above the earth's surface, while another discharge line extends from the water pump to a location adjacent to a water injection zone of the well. At least one of the pumps includes a remote intake for drawing fluid from the region in which the unit is not positioned. The technique permits the pumps to be positioned in the well and driven without the need for extended power transmission elements between the pumps.

Abstract: There is provided a single ply label for labelling a dry cell battery having an elongate peripheral case defining an axis and opposed ends enclosing a direct current, electrical energy providing core. The label is formed of a transparent, self-supporting, substantially monoaxially oriented, heat shrinkable polymer film backing having an outer surface and an inner surface, a width sufficient for the backing to embrace the battery case and provide, at opposed ends, first and second edges which extend parallel to the axis of the battery and meet in at least abutting relationship, and a length for extending beyond the opposed ends of the battery and lap over onto the opposed third and fourth ends of the battery. An alkali-resistant, electrically non-conductive, opaque, pigmented layer is applied to the inner surface of and supported by the backing. An electrically non-conductive, pressure-sensitive adhesive layer is applied over the pigmented layer at least along the first and second edges.

Abstract: A method and apparatus (10, 110 or 210) for cleaning the barrel (100) of a gun, is described. The apparatus includes a container (12, 112 or 212) and a cleaning rod (54). The container has end caps (30 and 32) which seal the container and form an inner chamber (12A, 112A or 212A). The top end cap has an opening for insertion of the cleaning rod. The end caps have holders (48) with recesses (48C) which hold the ends of the barrel in the container. The holders preferably have an opening in the bottom wall (48D) of the recess and orifices (52) around the sidewall. To use, the barrel of the gun is mounted in the bottom end cap inside the container and cleaning fluid (102) is poured into the container. The top end cap is sealed onto the container and the cleaning rod is inserted into the container and into the inside of the barrel.

Abstract: A fluid separation system is disclosed for installation within a wellbore that penetrates a production formation and a discharge formation. The system comprises a first pump and a second pump each operatively connected to a means for operation, such as a downhole electric motor, and a fluid separator for separating wellbore fluids from the production formation into a first stream and a lighter second stream. Wellbore fluids are introduced into the first pump, and are then conveyed to an inlet of the fluid separator. The second stream exiting the fluid separator is conveyed to an inlet of the second pump, and from the second pump to the earth's surface. Devices are included, such as wellbore packers, to isolate the discharge formation from the production formation, so that the second stream exiting the fluid separator directly enters the discharge formation.