Results 91 to 100 of about 53,263 (253)
Advanced Robotics Research, EarlyView.Rotating magnetic fields (RMFs) are widely used for microrobot propulsion and control. We show that RMF generation with permanent magnets is mechanically feasible for many limb and intracranial applications but becomes constrained for thoracic targets.
Tuan‐Anh Le +4 more
wiley +1 more source
Fatigue of Coiled Tubing and its Influencing Factors: A Comparative Study
, 2016 Coiled tubing (CT) has been widely used in oil well drilling and servicing. The operation of coiled tubing requires it to travel through the reel and gooseneck repeatedly under high internal pressure loading, which leads to bending fatigue damage of ...
X.-L. Gao +4 more
core +1 more source
Ten Years of Key Problems Tackling and Practice of Coiled Tubing Drilling Technology in China
Shiyou jixie, 2019 In-depth research, rapid breakthrough and scale application of coiled tubing operation technology and equipment in China have laid a foundation for the key problems tackling and practice of coiled tubing drilling technology.
He Huiqun +5 more
doaj
A Transnasal Endoscope for Robotically Assisted Gastroscopy
Advanced Robotics Research, EarlyView.This work introduces a 4.25 mm diameter magnetically navigated transnasal endoscope for upper gastrointestinal (GI) screening and intervention. The system enables precise remote steering throughout the upper GI tract and is demonstrated through in vitro and in vivo experiments, including the robotic execution of preprogrammed retroflexions, trans ...
Alexandre Mesot +6 more
wiley +1 more source
Erosion Wear Characteristic of Coiled Tubing in Fracturing Operation
Shiyou jixie, 2016 In view of few and incomprehensive study on erosion wear characteristic of coiled tubing in fracturing operation,the erosion wear mechanism of spiral section of coiled tubing caused by the fracturing fluid has been studied using Euler-Lagrange method and
鄢标 +4 more
doaj
Digital TwinBackground Coiled tubing operation is a high-quality operation method that considers both cost and efficiency in current oil and gas well operations. There is a significant difference between the calculation and prediction before operation and the actual
Wenlan Wei +4 more
doaj +1 more source
Magnetically Actuated Microrobot for Drug Delivery: Current Progress and Challenges
Advanced Robotics Research, EarlyView.Magnetically actuated microrobots are reshaping targeted drug delivery through wireless propulsion, programmable materials, and localized therapeutic release. This review examines how fabrication, body material selection, structural architecture, loading mechanisms, and imaging‐guided control converge to enable microrobotic therapies while identifying ...
Yang Yang, David J. Cappelleri
wiley +1 more source
On the penetration of tubular drill pipes in horizontal oil wells
, 2004 To carry out remedial work in oil wells through the production tubing string, a method using a continuous length of steel tubing or coiled tubing is used. Furthermore, coiled tubing can also be used for drilling and extending existing wells.
Kubie, J, McCourt, I, Truslove, T
core +1 more source
Advanced Robotics Research, EarlyView.Flexible surgical robots are advancing minimally invasive interventions for cardiovascular diseases and cancer by enabling precise navigation through complex, submillimeter anatomical pathways. This review highlights recent innovations in actuation, bio‐integrated sensing, AI‐assisted control, and friction‐reduction technologies, discusses current ...
Hermione Truong +14 more
wiley +1 more source
Development and Application of Coiled Tubing Fatigue Analysis Software
Shiyou jixieCoiled tubing is easy to break once it becomes fatigue after plastic deformation under the action of tensile force and internal pressure,which seriously affects the safety of oil and gas production.Based on the data of coiled tubing fatigue test,a ...
Tang Qingyuan +6 more
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