Results 51 to 60 of about 53,263 (253)
The Fatigue Behavior of Concentric Coiled Tubing
, 2018 This paper investigates the fatigue behavior of Concentric Coiled Tubing (CCT) and specifically the influence of internal and annular pressures on fatigue life and diametral growth rate.
Garrett Luebke, Steven M. Tipton
core +1 more source
Foam Fluid Flow Analysis in Helical Coiled Tubing Using CFD [PDF]
, 2015 Coiled tubing (CT) technology has developed rapidly and widely used in drilling, completion, oil test, production. Foam is a gas-liquid dispersion. The excellent properties of foam fluid are useful but it is difficult to simulate it.
Hailong Chen +7 more
core +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
Underbalanced Coiled Tubing Azimuthal Gamma-Ray Tool [PDF]
The company requires an azimuthal coiled tubing service for applications in Khuff Carbonates in KSA where sequences of cyclic carbonate-evaporite deposits with reservoirs from a few ft to tens of ft thick are very challenging to navigate.
Baker Hughes Company
core +1 more source
Research and Field Test of Coiled Tubing Sidetracking Technology
Shiyou jixie, 2017 Coiled tubing drilling (CTD) technology is an effective mean for the development of shallow depleted reservoirs. The CTD technology in our country is still in the field test stage.
Jia Tao, Zhang Yanping, Wu Qianli
doaj
Coiled Tubing as Initial Production Tubing: An Overview of Case Histories
, 1994 From January, 1993 through July, 1994 Marathon Oil Company completed ten newly drilled gas wells using coiled tubing as the initial production string. This paper reviews the operational aspects of each job and summarizes the areas where improvements in ...
J. R. Cordera +4 more
core +1 more source
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
Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots
Advanced Robotics Research, EarlyView.A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun +3 more
wiley +1 more source
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
doaj
Waveguide Photoactuators: Materials, Fabrication, and Applications
Advanced Robotics Research, EarlyView.Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi +4 more
wiley +1 more source