Abstract: A gas vent tool can include a body with a flow passage having upstream and downstream sections, a valve that selectively permits and blocks flow between the upstream section and an exterior of the gas vent tool, and a valve that selectively permits and blocks flow between the upstream and downstream sections. A gas vent system can include a gas vent tool connected longitudinally between an intake tool and a pump, the intake tool being configured to receive formation fluids therein, and the pump being configured to pump the formation fluids to surface. The gas vent tool can include a valve that selectively permits and blocks flow between an interior flow passage and an annulus external to the gas vent tool, and a valve that selectively permits and blocks flow between upper and lower sections of the flow passage.

Abstract: A gas vent tool can include a body with a flow passage having upstream and downstream sections, a valve that selectively permits and blocks flow between the upstream section and an exterior of the gas vent tool, and a valve that selectively permits and blocks flow between the upstream and downstream sections. A gas vent system can include a gas vent tool connected longitudinally between an intake tool and a pump, the intake tool being configured to receive formation fluids therein, and the pump being configured to pump the formation fluids to surface. The gas vent tool can include a valve that selectively permits and blocks flow between an interior flow passage and an annulus external to the gas vent tool, and a valve that selectively permits and blocks flow between upper and lower sections of the flow passage.

Abstract: The invention relates to a platform for a vehicle-carrier lorry, comprising a frame that is movable longitudinally and is tiltable, actuation means for actuating said frame, longitudinal guides secured to said frame, a head which travels along said guides, a loading sector provided with front hinges for attaching to the head and rear-rolling means, and actuation means for actuating the head.

Abstract: A simulator of free-fall containing air power generators (1) and appreciably cylindrical aerodynamic vein (2), in which evolve the persons (6) in state of free-fall, the wall (24) of which is realized by means of a film of flexible material stretched only by means of two frames (28) (29) fixed at the extremities of the aerodynamic vein (2) and to the superstructure (5) maintaining the aerodynamic vein (2). In particular the film of flexible material forming the wall (24) of the aerodynamic vein (2) is translucent and serves as screen to display from the outside of the vein (2) real or simulated images intended to be seen from inside of the aforementioned vein (2). In a particular mode of realization the air power generators (1) are arranged in a container for transport (74) and the superstructure (5) of the simulator can be disassembled so that the simulator is easily transported.