Parameter prediction of coiled tubing drilling based on GAN–LSTM [PDF]
Scientific Reports, 2023 With the increasing development of coiled tubing drilling technology, the advantages of coiled tubing drilling technology are becoming more and more obvious.
Wanxing Zhang +3 more
doaj +2 more sources
Analysis of sinusoidal post-buckling deformation of horizontal coiled tubing with initial residual bending. [PDF]
PLoS ONEIn the process of horizontal well construction, the working environment in the well is very complicated. It is difficult to determine the actual deformation and force of the coiled tubing in the wellbore from the load change at the wellhead along.
Zhuang Li +3 more
doaj +2 more sources
The Effects of Boundary Conditions and Friction on the Helical Buckling of Coiled Tubing in an Inclined Wellbore. [PDF]
PLoS ONE, 2016 Analytical buckling models are important for down-hole operations to ensure the structural integrity of the drill string. A literature survey shows that most published analytical buckling models do not address the effects of inclination angle, boundary ...
Yinchun Gong +3 more
doaj +2 more sources
Accelerated gas-liquid visible light photoredox catalysis with continuous-flow photochemical microreactors [PDF]
, 2016 In this protocol, we describe the construction and use of an operationally simple photochemical microreactor for gas-liquid photoredox catalysis using visible light.
A Günther +26 more
core +10 more sources
Research on Coiled Tubing Operation Data Safety Evaluation Technology and Software Development
Shiyou jixie, 2021 To improve the comprehensive ability of coiled tubing equipment in complex well conditions and reduce operational safety accidents, coiled tubing safety assessment technology is studied based on field operation data. Using the micro-element analysis idea,
Yu Zhijun +6 more
doaj
Buckling load of bending coiled tubing under an injector
Advances in Mechanical Engineering, 2018 When coiled tubing is applied in high oil–gas wells, buckling load of a coiled tubing under the injector is the key for functionality. The coiled tubing is curved, but it is simplified to straight tubing for buckling load solved in the past.
ZhaoLiang Zhu, Zheng Liang, Jun Hao
doaj +1 more source
Thick-walled composite tubes for offshore applications : an example of stress and failure analysis for filament-wound multi-layered pipes [PDF]
, 2017 Acknowledgements Financial support of the part of this research by The Royal Society, The Royal Academy of Engineering, and The Carnegie Trust for the Universities of Scotland is gratefully acknowledged.Peer ...
Guz, Igor A. +2 more
core +1 more source
Jixie qiangdu, 2023 Aiming at the problem of aggravated wear of coiled tubing caused by buckling in underground, a contact wear model between compression buckling coiled tubing and wellbore was established based on submodel method.
LI Gang +5 more
doaj
Distal subgaleal-peritoneal shunt migration into the abdominal wall with subsequent formation of a pre-peritoneal pseudocyst: a rare complication. [PDF]
, 2010 Distal ventriculo-peritoneal shunt migration and extra-peritoneal CSF pseudocyst formation are unusual complications of shunt placement. We present a 65-year-old-female who received a subgaleal-peritoneal shunt to decompress a post-surgical subgaleal ...
Carmel, Peter W +4 more
core +2 more sources
A reconfigurable microfluidics platform for microparticle separation and fluid mixing [PDF]
, 2016 Microfluidics is an engineering tool used to control and manipulate fluid flows, with practical applications for lab-on-a-chip, point-of-care testing, and biological/medical research. However, microfluidic platforms typically lack the ability to create a
Choi, Sungyoung +3 more
core +2 more sources