Abstract: Methods and systems for determining a property of a tubular are described. Measurement data of cross-sectional shapes of the tubular at a plurality of depth positions is provided. A three-dimensional mesh representing the tubular based on the cross-sectional shapes is generated. A stress simulation using the three-dimensional mesh to provide an integrity assessment of the tubular is performed.

Abstract: Methods and systems for determining a property of a tubular are described. Measurement data of cross-sectional shapes of the tubular at a plurality of depth positions is provided. A three-dimensional mesh representing the tubular based on the cross-sectional shapes is generated. A stress simulation using the three-dimensional mesh to provide an integrity assessment of the tubular is performed.

Abstract: A method can include receiving mechanical information of a geologic environment and location information of natural fractures of the geologic environment; using a model of the geologic environment, calculating at least strain associated with hydraulic fracturing in the geologic environment; calculating at least microseismicity event locations based at least in part on the calculated strain; calibrating the model based at least in part on the calculated microseismicity event locations and based at least in part on measured microseismicity information associated with the geologic environment to provide a calibrated model; and, using the calibrated model, determining an increase in reactivated fracture volume associated with hydraulic fracturing in the geologic environment.

Abstract: In accordance with a particular embodiment of the present disclosure, an apparatus for shielding welding fumes includes a device configured to engage a welding gun. The device is configured to emit a flow of air through the one or more orifices. The flow of air is operable to divert welding fumes away from a welder.

Abstract: A coaxial cable is provided with a specially prepared precoat layer that facilitates removal of the precoat layer when the end of the cable is cored in preparation for receiving a connector. The cable includes an inner conductor; a foam polyolefin dielectric layer surrounding the inner conductor; an outer conductor surrounding said dielectric layer; and a precoat layer disposed between the inner conductor and the dielectric layer. The precoat layer forms a first bond interface with the inner conductor and a second bond interface with the dielectric layer, wherein the ratio of the axial shear adhesion force of the first (“A”) bond to the axial shear adhesive force of the second (“B”) bond is less than 1, and wherein the ratio of the axial shear adhesion force of the “A” bond formed by the precoat layer between the inner conductor to the dielectric layer to the rotational shear adhesion force of the bond is 5 or greater.

Abstract: A system and method of fabricating tank car outer jackets are provided that include supporting a plurality of coils of sheet metal on a plurality of coil supports such that the central longitudinal axes of the plurality of coils are generally parallel to a central longitudinal axis of a mandrel adjacent the plurality of coils. A plurality of sheets of sheet metal are unwound from the plurality of coils by rotating each of the plurality of coils generally about the respective central longitudinal axes of each of the plurality of coils. As the plurality of sheets of sheet metal are wound onto the mandrel, adjacent sheets of the plurality of sheets of sheet metal are welded together using a plurality of automated welding torches proximate the mandrel. The plurality of automated welding torches may be coupled for communication with a programmable logic controller.

Abstract: A system and method of fabricating tank car outer jackets are provided that include supporting a plurality of coils of sheet metal on a plurality of coil supports such that the central longitudinal axes of the plurality of coils are generally parallel to a central longitudinal axis of a mandrel adjacent the plurality of coils. A plurality of sheets of sheet metal are unwound from the plurality of coils by rotating each of the plurality of coils generally about the respective central longitudinal axes of each of the plurality of coils. As the plurality of sheets of sheet metal are wound onto the mandrel, adjacent sheets of the plurality of sheets of sheet metal are welded together using a plurality of automated welding torches proximate the mandrel. The plurality of automated welding torches may be coupled for communication with a programmable logic controller.

Abstract: A coaxial cable is provided with a specially prepared precoat layer that facilitates removal of the precoat layer when the end of the cable is cored in preparation for receiving a connector. The cable includes an inner conductor; a foam polyolefin dielectric layer surrounding the inner conductor; an outer conductor surrounding said dielectric layer; and a precoat layer disposed between the inner conductor and the dielectric layer. The precoat layer forms a first bond interface with the inner conductor and a second bond interface with the dielectric layer, wherein the ratio of the axial shear adhesion force of the first (“A”) bond to the axial shear adhesive force of the second (“B”) bond is less than 1, and wherein the ratio of the axial shear adhesion force of the “A” bond formed by the precoat layer between the inner conductor to the dielectric layer to the rotational shear adhesion force of the bond is 5 or greater.

Abstract: A rolling cutter drill bit is disclosed which utilizes a main body having a threaded end for connection in a drill string, and a plurality of rolling cutter assemblies joined to the bottom of the bit body by means such as electron beam welding.