Analysis of flexible composites for coiled tubing applications

Application Characteristics and Research Difficulties of Coiled Tubing Drilling Technology

“…The number of applications in North America accounts for more than 85% of the world's total. In the western working area of Pradesh Bay, USA, the annual coiled tubing used more than 1000 wells [4]; in 2001, the US Columbia Gas Transmission Company successfully completed sidetracking in the Donegal gas storage field using coiled tubing drilling equipment; Dreco Canada developed a kind for the Arctic Or the coiled tubing machine in the desert area can withstand the extreme temperatures of ultra-low temperature and ultra-high temperature [5].…”

“…Coiled tubing drilling technology has many irreplaceable advantages over conventional operating tools [9]:…”

Numerical modelling of spoolable thermoplastic composite pipe (TCP) under combined bending and thermal load

“…Maximum stress failure predictions agreed closely with four-point test results. The theoretical framework was used by Menshykova and Guz (2014) to compare stresses in carbon/epoxy pipes with inner steel or 0°fibre layers and by Cox et al (2019), who assessed spooling of different pipe geometries and layups. Shadmehri et al (2011) closely predicted experimental bending stiffness of carbon/ polyetherketoneketone (PEKK) tubes by non-classical beam theory accounting for shear deformation.…”

Failure Analysis of Multi-Layered Thick-Walled Composite Pipes Subjected to Torsion Loading

“…A parametric study was conducted to investigate the stress distribution as a function of the material properties, the thickness, the number of layers and the magnitude of bending load. Failure analysis of the composite pipes subjected to bending, axial and pressure loads was carried out in [5]. Furthermore, cantilever composite pipe was investigated by applying a novel two-level (bending-like and shear-like) analytical strategy [6].…”