By Yuguang Ye (auth.), Yuguang Ye, Changling Liu (eds.)
“Natural fuel Hydrates: Experimental options and Their functions” makes an attempt to largely combine the newest wisdom within the fields of hydrate experimental ideas within the laboratory. The publication examines a number of experimental recommendations with a purpose to supply worthwhile parameters for fuel hydrate exploration and exploitation. It offers experimental suggestions for gasoline hydrates, together with the detection options, the thermo-physical homes, permeability and mechanical homes, geochemical abnormalities, balance and dissociation kinetics, exploitation stipulations, in addition to sleek size applied sciences and so forth.
This e-book might be of curiosity to experimental scientists who have interaction in gasoline hydrate experiments within the laboratory, and is usually meant as a reference paintings for college students all in favour of fuel hydrate learn.
Yuguang Ye is a exotic professor of Experimental Geology at Qingdao Institute of Marine Geology, China Geological Survey, China. Professor Changling Liu works on the Qingdao Institute of Marine Geology, China Geological Survey, China.
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Additional info for Natural Gas Hydrates: Experimental Techniques and Their Applications
35, especially for sandy soil. Wright et al. studied the effect of temperature on dielectric constant measurement, tested the constant at 5–55 C and different frequencies, and discovered that the water content determined above 5 C would not change as was believed by many researchers . The measured water content would be influenced by large changes in water density at temperatures below 5 C. Temperature had a large effect on the measured water content in clay soil or soil with high organic matter and high salinity, so the volumetric water content calculated from the above equation would need to be corrected.
Fast Fourier transform (frequency spectrum) and wavelet analyses (referred to as “FFT-WT”) can also be used to determine the S-wave arrival time. 33 is a wavelet analysis of the waveform in water-saturated loose sediment. 6 ms, 2D frequency analysis indicates a dominant frequency at about 28 kHz, which is close to the 25 kHz obtained with FFT analysis of the S-wave band (Fig. 6 ms. To verify the correctness of the arrival time determined by the FFT-WT, the S-wave velocities measured by the FFT-WT and the direct method are compared with each other (Fig.
A piezoelectric ceramic plate only for P-wave excitation is placed at the rear of the bender elements (Fig. 20) to enhance the P-wave amplitude. To enable the transducer to work at higher pressure, a sealing structure is used and at the same time insulating resin is poured into the cylindrical case to seal the P-wave plate and bender element into it. The signal line goes out from behind or from the side of the case (Fig. 21). Waveforms in water-saturated loose sediment tested by a type IV bender element transducer are shown in Fig.