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
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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
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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
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Biocide-mediated corrosion of coiled tubing. [PDF]
PLoS One, 2017 Coiled tubing corrosion was investigated for 16 field water samples (S5 to S20) from a Canadian shale gas field. Weight loss corrosion rates of carbon steel beads incubated with these field water samples averaged 0.2 mm/yr, but injection water sample S19 had 1.25±0.07 mm/yr.
Sharma M +5 more
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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
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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
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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
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Buckling Load of Bending Coiled Tubing below the Injector Head
Shiyou jixie, 2018 In the application of coiled tubing in high-pressure oil and gas wells, the buckling load of the coiled tubing between the injector head and the stripper is an important parameter to determine the construction safety.
Zhu Zhaoliang +4 more
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Computational analysis of coiled tubing concerns during oil well intervention in the upper Assam basin, India. [PDF]
Sci Rep, 2023 Neog D, Sarmah A, Baruah MIS.
europepmc +3 more sources
Research on the Behavior of Coiled Tubing Running Based on Experiment
Shiyou jixie, 2018 The coiled tubing is subject to complex forces in downhole condition. The loads like gravity, liquid resistance, bending moment and torque, and environmental factors such as temperature and pressure make the coiled tubing prone to buckling during running.
Qin Hua +5 more
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