Results 91 to 100 of about 1,357 (297)
Recoil Control Analysis of Deepwater Drilling Riser Tension System
Shiyou jixie, 2020 The drilling riser tension system can mitigate the influence of the floating platform/ship heave motion on the riser and provide a nearly constant top tension force for the riser. Therefore, a large amount of energy is stored in the drilling riser system.
Sun Zhanguang +5 more
doaj
Advanced Materials Interfaces, EarlyView.Schematic illustration of a sustainable nanofabrication process: chitosan derived from natural sources is used as a biodegradable thin film resist, patterned via Constant Pulse‐Assisted Force Lithography (CP‐AFL) to create tunable nanogrooves. These grooves template gold nanowire formation, enabling high‐resolution nanopatterning under ambient ...
Paolo Pellegrino +7 more
wiley +1 more source
Modeling and Simulation for Recoil Control System of Deepwater Drilling Riser
Shiyou jixie, 2016 For the deepwater drilling operation using dynamic positioning drilling apparatus,if the dynamic positioning failed to maintain the drillship in an effective position,connection between riser and wellhead must be disconnected.Riser recoil would occur ...
He Xinxia +3 more
doaj
A Survey of Interlayer Interaction Models for Graphene and Other 2D Materials
Advanced Materials Interfaces, EarlyView.Van der Waals interactions arising from electronic polarization at atomically close interfaces generate corrugated interlayer energy landscapes that govern normal and tangential tractions. This review presents an overview of quantum, atomistic, analytical, and continuum modeling approaches, highlighting their roles across length scales in capturing ...
Gourav Yadav +2 more
wiley +1 more source
Advanced Materials Interfaces, EarlyView.Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood +7 more
wiley +1 more source
Xenes for Sustainable Energy: A Roadmap From First‐Principles Design to Practical Deployment
Advanced Materials Interfaces, EarlyView.Emerging 2D Xenes are advancing from theoretical predictions toward practical energy‐storage and conversion technologies through the integration of first‐principles modelling, experimental synthesis, electrochemical validation, and AI‐assisted materials design, enabling accelerated discovery of high‐performance and sustainable electrochemical systems ...
Onur Karaman, Ceren Karaman
wiley +1 more source
Oil & Gas Science and Technology, 2006 Le présent article aborde les slimline risers et les systèmes de forage minier qui sont deux domaines technologiques dont le potentiel doit permettre d'améliorer le forage et le carottage scientifiques en eau très profonde au cours du XXIe siècle.
Sparks C.
doaj +1 more source
Simulation - based assessment of drilling riser and its application for the Kara Sea region [PDF]
, 2015 Master's Thesis in Petroleum EngineeringDrilling in Arctic offshore conditions is a very challenging for the oil industry. With an increase in drilling operations in these harsh environments, drilling riser requirements and limits have become more ...
Vafin, Albert
core
, 2021 Drilling systems have become an integral part of oil and gas exploration and production particularly in ultra-deep waters. With increasing drilling depth, heavy weight of the riser system and high-top tension requirement become the potential concern. The
Xiao, Fei, Yang, Hezhen
core
Advanced Materials Technologies, EarlyView.The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz +5 more
wiley +1 more source