Abstract: A fluid well pumping system includes at least one stage for removing fluid from a well. The at least one stage includes a product line assembly adapted for positioning in the well casing as a unit. The product line assembly includes a first product tube and first and second gas lines in a passage of the product tube. The at least one stage also include a fluid reservoir adapted for positioning in a well casing as a unit that is attachable to the product line assembly in end-to-end fashion. The fluid reservoir includes a housing defining a chamber for storage of fluid and a float in the chamber. The fluid reservoir also includes a third gas line in fluid communication with the first gas line, a fourth gas line in fluid communication with the second gas line, and a product line in fluid communication with the product tube when assembled.

Abstract: A fluid well pumping system includes at least one stage for removing fluid from a well. The at least one stage includes a product line assembly adapted for positioning in the well casing as a unit. The product line assembly includes a first product tube and first and second gas lines in a passage of the product tube. The at least one stage also include a fluid reservoir adapted for positioning in a well casing as a unit that is attachable to the product line assembly in end-to-end fashion. The fluid reservoir includes a housing defining a chamber for storage of fluid and a float in the chamber. The fluid reservoir also includes a third gas line in fluid communication with the first gas line, a fourth gas line in fluid communication with the second gas line, and a product line in fluid communication with the product tube when assembled.

Abstract: A fluid pumping system includes a number of stages. Each stage has a fluid chamber having a top end with an air aperture and a bottom end with a fluid apertures. An air line is connected to the air aperture, and a fluid input conduit, with an input check valve, is connected to the fluid aperture. A float valve is disposed in the chamber directly between the fluid aperture and the air aperture. A fluid output conduit is connected to the fluid aperture above the input check valve. The float has a bottom end adapted to seal with the fluid aperture when the chamber is empty. A first set of pumping stages are supplied by a first compressed air line and a second set of pumping stages are supplied by a second compressed air line. Periodically, compressed air is supplied to a first set of pump stages to drive fluid from each of the first set of pump stages to a second set of stages, and vice versa.

Abstract: A fluid pumping system includes a number of stages. Each stage has a fluid chamber having a top end with an air aperture and a bottom end with a fluid apertures. An air line is connected to the air aperture, and a fluid input conduit, with an input check valve, is connected to the fluid aperture. A float valve is disposed in the chamber directly between the fluid aperture and the air aperture. A fluid output conduit is connected to the fluid aperture above the input check valve. The float has a bottom end adapted to seal with the fluid aperture when the chamber is empty. A first set of pumping stages are supplied by a first compressed air line and a second set of pumping stages are supplied by a second compressed air line. Periodically, compressed air is supplied to a first set of pump stages to drive fluid from each of the first set of pump stages to a second set of stages, and vice versa.

Abstract: A fluid pumping system includes a number of stages. Each stage has a fluid chamber having a top end with an air aperture and a bottom end with a fluid apertures. An air line is connected to the air aperture, and a fluid input conduit, with an input check valve) is connected to the fluid aperture. A float valve is disposed in the chamber directly between the fluid aperture and the air aperture. A fluid output conduit is connected to the fluid aperture above the input check valve. The float has a bottom end adapted to seal with the fluid aperture when the chamber is empty. A first set of pumping stages are supplied by a first compressed air line and a second set of pumping stages are supplied by a second compressed air line. Periodically, compressed air is supplied to a first set of pump stages to drive fluid from each of the first set of pump stages to a second set of stages, and vice versa.