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Can we estimate the amount of gas hydrates by seismic methods?

机译：我们可以通过地震方法估算天然气水合物的含量吗？

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Elastic wave velocity is the key parameter in determining the quantity of gas hydrate in sediment. Using data acquired in permafrost, elastic responses of gas hydrate bearing sediment are examined in detail by fitting observed elastic wave velocities of VSP and logging data with computed velocities based on two opposing has hydrate bearing models. It is concluded that ovserved elastic wave velocity best fits a model of gas hydrate disseminated in pore space, without assuming cementation of grain boundaries in model simulations. This conclusion is important in the sense that shear wave velocity is crucial in determining gas hydrate bearing model and estimating gas hydrate saturation rate in pore space. The current case is the first example in model determination by reliable eastic wave velocity observed in the field.

机译：弹性波速度是确定沉积物中天然气水合物含量的关键参数。使用在多年冻土中获得的数据，通过拟合观测到的VSP弹性波速度和基于两个相对的有水合物承载模型的计算速度来记录数据，详细检查了含天然气水合物的沉积物的弹性响应。得出的结论是，在模型模拟中，假设弹性波速度最适合在孔隙空间中散布的天然气水合物模型，而没有假设晶界胶结。从确定剪切波速度对确定天然气水合物承载模型和估算孔隙空间中天然气水合物饱和率至关重要的意义上来说，这一结论很重要。当前情况是通过现场观测到的可靠东风速度进行模型确定的第一个例子。

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《Conference on Gas Hydrates》||p.374-391|共18页
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Akio Sakai;
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正文语种 eng
中图分类化学工业;
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3. Estimating the amount of gas-hydrate using effective medium theory: a case study in the Blake Ridge [J] . Ranjana Ghosh, Kalachand Sain, Maheswar Ojha Marine Geophysical Research . 2010,第s1a2期

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5. Fluid flow, gas accumulations, and gas hydrate formation in Kumano forearc basin determined by seismic reflection interpretation and well data correlation. [D] . Barnes, Jessica L. 2013

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Can we estimate the amount of gas hydrates by seismic methods?

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