Experimental Investigation of the Mechanical Properties of Methane Hydrate–Bearing Sediments under High Effective Confining Pressure

Author(s):  
Jialin Xu ◽  
Chengshun Xu ◽  
Norimasa Yoshimoto ◽  
Masayuki Hyodo ◽  
Shintaro Kajiyama ◽  
...  
2011 ◽  
Vol 38 (5) ◽  
pp. 637-640 ◽  
Author(s):  
Yanghui Li ◽  
Yongchen Song ◽  
Feng Yu ◽  
Weiguo Liu ◽  
Rui Wang

Author(s):  
Feng Yu ◽  
Yongchen Song ◽  
Weiguo Liu ◽  
Yanghui Li ◽  
Jiafei Zhao

The production of methane from hydrate reservoir may induce deformation of the hydrate-bearing strata. The research on mechanical properties of methane hydrate and establishing an efficient methane exploitation technology appear very important. In this paper, a low-temperature high-pressure triaxial test system including pressure crystal device (sample preparation system) was developed. A series of triaxial shear tests were carried out on artificial methane hydrate samples. The mechanical behavior was analyzed. The preliminary results show that the shear strength of methane hydrate increases with the increase of confining pressure and strain rate. While it increases with the decrease of temperature. Moreover, the secant modulus increases with the enhancement of strain rate and the decrease of confining pressure.


2010 ◽  
Vol 126 (7) ◽  
pp. 408-417 ◽  
Author(s):  
Kuniyuki MIYAZAKI ◽  
Tsutomu YAMAGUCHI ◽  
Yasuhide SAKAMOTO ◽  
Norio TENMA ◽  
Yuji OGATA ◽  
...  

2017 ◽  
Vol 45 ◽  
pp. 96-107 ◽  
Author(s):  
Shintaro Kajiyama ◽  
Yang Wu ◽  
Masayuki Hyodo ◽  
Yukio Nakata ◽  
Koji Nakashima ◽  
...  

2010 ◽  
Author(s):  
Kuniyuki Miyazaki ◽  
Akira Masui ◽  
Yasuhide Sakamoto ◽  
Norio Tenma ◽  
Tsutomu Yamaguchi

2013 ◽  
Vol 275-277 ◽  
pp. 326-331 ◽  
Author(s):  
Zhong Ming Sun ◽  
Jian Zhang ◽  
Chang Ling Liu ◽  
Shi Jun Zhao ◽  
Yu Guang Ye

TDR was introduced to solve the problem of how to measure hydrate saturation accurately. Then a series of un-drained triaxial tests were carried out on methane hydrate-bearing sediments under various conditions with effective confining pressures at 1, 2 and 4 MPa, average hydrate saturations at 15.71, 35.7 and 56.49% and strain rate at 0.8%/min. The results indicate that the shear strength increases with the increases of effective confining pressure and hydrate saturation, but the maximum failure time decreases with the increasing effective confining pressures. According to Mohr-Coulomb failure criterion, the shear strength of methane hydrate-bearing sediments was analyzed. It can be found that the internal friction angles are not sensitive to hydrate saturation, but the cohesion shows a high hydrate saturation dependency.


2012 ◽  
Vol 28 (5) ◽  
pp. 1356-1366 ◽  
Author(s):  
Xu-Hui Zhang ◽  
Xiao-Bing Lu ◽  
Li-Min Zhang ◽  
Shu-Yun Wang ◽  
Qing-Ping Li

2010 ◽  
Vol 7 (2) ◽  
pp. 57
Author(s):  
Jamaludin Kasim ◽  
Shaikh Abdul Karim Yamani ◽  
Ahmad Firdaus Mat Hedzir ◽  
Ahmad Syafiq Badrul Hisham ◽  
Mohd Arif Fikri Mohamad Adnan

An experimental investigation was performed to evaluate the properties of cement-bonded particleboard made from Sesendok wood. The target board density was set at a standard 1200 kg m". The effect offarticle size, wood to cement ratio and the addition ofsodium silicate and aluminium silicate on the wood cement board properties has been evaluated. A change ofparticle size from 1.0 mm to 2.0 mm has a significant effect on the mechanical properties, however the physical properties deteriorate. Increasing the wood to cement ratio from 1:2.25 to 1:3 decreases the modulus ofrupture (MOR) by 11% and the addition ofsodium silicate improves valuesfurther by about 28% compared to the addition ofaluminum silicate. The modulus ofelasticity (MOE) in general increases with increasing cement content, but is not significantly affected by the addition ofsodium silicate or aluminium silicate, although the addition of their mixture (sodium silicate andaluminium silicate) consistentlyyields greater MOE values. Water absorption and thickness swelling is significantly affected by the inclusion ofadditives and better values are attained using higher wood to cement ratios.


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