Design and Verification of a Sensing Device for Deformation Measurement of High Temperature Pipes

In this paper, a sensing device specifically for measuring deformations of high temperature pipes is designed, and its applicability is verified both experimentally and theoretically. First, the design procedure and the working principle of the sensing device are described in detail. Then, experiments are carried out to prove the accuracy and the long-term stability of the sensing device. To verify the accuracy of the device, numerical simulation of the deformation of a pipe model is carried out using finite element method. Results from the experimental measurements are in good agreement with results from the numerical simulation. The long-term stability of the device is validated by monitoring the deformation. Conclusions are drawn that the designed sensing device has high accuracy and excellent stability and can be used for measuring deformations of high temperature pipes in power plants.

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High-temperature and long-term stability of Ho-doped potassium sodium niobate-based multifunctional ceramics

Ceramics International ◽

10.1016/j.ceramint.2021.01.196 ◽

2021 ◽

Author(s):

Wei Li ◽

Jigong Hao ◽

Peng Fu ◽

Juan Du ◽

Peng Li ◽

...

Keyword(s):

High Temperature ◽

Sodium Niobate ◽

Potassium Sodium Niobate ◽

Potassium Sodium ◽

Term Stability ◽

Long Term Stability

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Long-Term Stability and Durability of High-Temperature Alloys

JOM ◽

10.1007/s11837-014-1191-9 ◽

2014 ◽

Vol 66 (12) ◽

pp. 2476-2477

Author(s):

Chantal K. Sudbrack ◽

Mark C. Hardy

Keyword(s):

High Temperature ◽

Term Stability ◽

Long Term Stability ◽

High Temperature Alloys

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Long-term stability of the Io high-temperature plasma torus

The Astrophysical Journal ◽

10.1086/163304 ◽

1985 ◽

Vol 294 ◽

pp. 369 ◽

Cited By ~ 39

Author(s):

H. W. Moos ◽

T. E. Skinner ◽

S. T. Durrance ◽

P. D. Feldman ◽

M. C. Festou ◽

...

Keyword(s):

High Temperature ◽

Temperature Plasma ◽

Term Stability ◽

Long Term Stability ◽

High Temperature Plasma ◽

Plasma Torus

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A Novel Water-Based Drilling Fluid Tailored for Challenging Slanted HTHP Wells

10.2118/202178-ms ◽

2021 ◽

Author(s):

Vaughn Reza Traboulay ◽

Tint Htoo Aung ◽

Cedric Manzoleloua ◽

Balakrishnan Panamarathupalayam ◽

Carmelo Arena ◽

...

Keyword(s):

High Temperature ◽

Drilling Fluid ◽

Synthetic Polymer ◽

Term Stability ◽

Long Term Stability ◽

High Temperature Water ◽

Water Based ◽

Static Conditions ◽

Temperature Water

Abstract High-temperature water-based drilling fluid systems hold several advantages over synthetic based systems from financial and environmental viewpoints. However, most conventional water-based systems start to become unstable at temperatures above 300 degF. This paper details the design and implementation of A Novel Water-Based Drilling Fluid that meet these temperature stability requirements. The newly developed high-temperature water-based system discussed in this paper utilizes a custom-made branched synthetic polymer that exhibits superior rheological properties and fluid loss control as well as long term stability above 400 degF. The branched synthetic polymer is compatible with most oilfield brines and maintains excellent low-end rheology necessary for hole cleaning and solids suspension under high-temperatures and pressures. Under static conditions, the high-temperature fluid shows no gelation resulting in lower swab surge pressures while the stability of the highly branched synthetic polymer and enhanced rheological profile minimize sag. To drill a challenging exploration well, a Middle East client required a cost-effective drilling fluid system which remains stable under static temperatures expected to exceed 375 degF. The long-term stability of the system was critical for successful wireline logging operations. In addition, the system was required to provide shale inhibition, hydrogen sulfide suppression and sufficient density (above 16.5 lbm/galUS) to maintain well integrity while drilling through anticipated high-pressure zones. The challenging intermediate (12.25-in and 8.375-in) and reservoir (6-in) sections were successfully drilled and evaluated using this new branched synthetic polymer-based system. Fluid property trends and system treatments will be detailed alongside thermal stability data for extended periods required for wireline logging (up to 9 days static). This paper will discuss how proper laboratory design of the high-temperature water-based system was translated to excellent field performance and will indicate how this technology can be utilized for future campaigns in the region and worldwide.

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Simulation Analysis of the Long-Term Stability for Frozen Soil Roadbed

Mathematical Problems in Engineering ◽

10.1155/2014/605890 ◽

2014 ◽

Vol 2014 ◽

pp. 1-7

Author(s):

Xiaohui Liu ◽

Jianqing Jia ◽

Yibo Zhang

Keyword(s):

Numerical Simulation ◽

Global Warming ◽

Tibetan Plateau ◽

Simulation Analysis ◽

Frozen Soil ◽

Temperature Fields ◽

Term Stability ◽

Long Term Stability ◽

Horizontal Displacements

The global warming will lead to rising temperature in Tibetan plateau which will cause some trouble to the long-term stability of frozen soil roadbed. Of course, the temperature is the most important to stability analysis and study of frozen soil roadbed. In this paper, taking the frozen soil roadbed in Tibetan plateau as an example, the numerical simulation model is established. Firstly, the characteristics of temperature fields of frozen soil roadbed in the future 50 years are analyzed, and then the vertical and horizontal displacements without load and under dynamic load are analyzed.

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