Abstract: A system for treating a plurality of adjacent wells having casing includes a wireline, perforating equipment, and a fiber-optic interrogator. The wireline has at least one optical fiber disposed along its length. At least one optical fiber is configured as a distributed acoustic sensor. The perforating equipment includes a perforating gun that can couple to a termination of the wireline. Run downhole on the wireline, the perforating gun can perforate the casing. The fiber-optic interrogator is configured to couple to another termination of the wireline. The fiber-optic interrogator is configured to interrogate the at least one optical fiber for distributed acoustic sensing. The wireline deployed in a well with the perforating gun can remain in the well, while an adjacent well is stimulated to produce hydraulic fracture. During the stimulation, the fiber-optic wireline is used for distributed acoustic sensing during the fracture operation of the adjacent well.

Abstract: A system for treating a plurality of adjacent wells having casing includes a wireline, perforating equipment, and a fiber-optic interrogator. The wireline has at least one optical fiber disposed along its length. At least one optical fiber is configured as a distributed acoustic sensor. The perforating equipment includes a perforating gun that can couple to a termination of the wireline. Run downhole on the wireline, the perforating gun can perforate the casing. The fiber-optic interrogator is configured to couple to another termination of the wireline. The fiber-optic interrogator is configured to interrogate the at least one optical fiber for distributed acoustic sensing. The wireline deployed in a well with the perforating gun can remain in the well, while an adjacent well is stimulated to produce hydraulic fracture. During the stimulation, the fiber-optic wireline is used for distributed acoustic sensing during the fracture operation of the adjacent well.

Abstract: An aerodynamic system comprising a torsion tube, a first rotatory coupling coupled to the torsion tube and adapted to mount to a first wheel hub, a second rotary coupling coupled to the torsion tube distal from the first rotary coupling and adapted to mount to a second wheel hub, and a non-rotating fairing panel mounted to the torsion tube.

Abstract: A chassis mounted energy extraction and delivery system. In one embodiment, a gravity-referenced, external tire inflation facility is integrated into an aerodynamic fairing mounted on the chassis of a vehicle. In one other embodiment, a torsion bar coupled between a hub-mounted energy extraction or delivery facility and a selected portion of the chassis provides a cross-referenced fixed point of reference. In a dual-axle embodiment, a first end of the torsion bar is coupled to the hub of one axle and a second end of the torsion bar is coupled to the hub of the other axle. In a single-axle embodiment, the second end of the torsion bar is coupled to the chassis.

Abstract: An end effector is disclosed that is configured for connection to a robotic unit used to manipulate a door of a vehicle (e.g., during vehicle painting). The end effector includes a base plate; a sensor that is supported by the base plate; and a piston that is configured for engagement with the door. The piston is operatively connected to an interrupter such that movement (displacement) of the piston causes corresponding movement (displacement) of the interrupter between a first position, in which the interrupter is positioned in alignment with a signal transmitted across the sensor to interfere with the signal and thereby interrupt circuit completion, and a second position, in which the interrupter is out of alignment with the signal transmitted across the sensor to permit circuit completion and thereby inform the robotic unit that the door is present and engaged with the end effector.

Abstract: An assembly of a bulkhead 48 and fuel nozzle guide 62 for a fuel nozzle 46 disposed in a combustion chamber 24 is disclosed. Various construction details which provide for positively cooling components of the assembly are developed. In one detailed embodiment, the nozzle fuel guide is spaced from the bulkhead to form an annular gap G.sub.1 which is divided by a heat shield 72 into annular orifices 108, 112 for supplying to cooling air passages 126, 128 bounded by the heat shield 72.