Results 41 to 50 of about 2,605 (265)
Calculation Method for the Heat Affected Zone of Coiled Tubing Circumferential Welding
Shiyou jixie, 2019 Coiled tubing circumferential welding is indispensable in the manufacturing and on-site repair process. The heat-affected zone caused by welding not only directly reduces the overall strength of the coiled tubing, but also makes the coiled tubing more ...
Jiang Jinxu +4 more
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Advanced Robotics Research, EarlyView.This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino +7 more
wiley +1 more source
Test and Evaluation of Double-flap Check Valve for Coiled Tubing Drag Fracturing
Shiyou jixie, 2018 To prevent the sand in the annular from entering the coiled tubing during the process of coiled tubing drag fracturing, which results in jet nozzle sand plugging and energy leakage owing to accidental damage and crack of coiled tubing, the double flap ...
Gao Sen, Yang Hongbin, Liu Leilei
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3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends
Advanced Robotics Research, EarlyView.Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu +5 more
wiley +1 more source
Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots
Advanced Robotics Research, EarlyView.Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley +1 more source
Effects of Multiple Factors on the Fatigue Life of Titanium Alloy Coiled Tubing
Shiyou jixieTitanium alloy coiled tubing with low density， high strength， and excellent corrosion resistance is expected to become a new type of key equipment in deep-earth and deepwater oil and gas exploration.
Chen Jiejing, Liu Shaohu
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Distribution of Gripper Lift Force during Chain Transmitting in Coiled Tubing Injector Head
Shiyou jixie, 2018 In the process of coiled tubing operation, the coiled tubing trips in and out by gripper block driven by the injector head chain. The equalibrium of the lifting forces of the gripper block is of great significance for safe operation and prevention of ...
Zhou Zhihong, Yu Li
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Research on the RIH Behavior of Coiled Tubing under Circulation Operation
Shiyou jixie, 2020 The influence of fluid flow on the RIH(run-in-hole)behavior of coiled tubing cannot be ignored. For this reason, considering the shear force caused by the fluid inside and outside the coiled tubing and the additional tube wall contact force of the fluid,
Li Xiaolong +6 more
doaj
Development and Application of Coiled Tubing Flushing Fluid Recycling Treatment Unit
Shiyou jixie, 2021 Existing descaling and well-flushing trucks are mainly applied for conventional descaling and well flushing operations, which are not applicable for coiled tubing operation.
Hu Zhiqiang +6 more
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Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing
Advanced Robotics Research, EarlyView.This work presents a degradable soft magnetic composite made from recycled NdFeB particles embedded in a gelatin‐based organogel. The material is processed into magnetic sensors and soft robotic components, which can later be dissolved in a green solvent to recover NdFeB magnetic particles.
Muhammad Bilal Khan +14 more
wiley +1 more source