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The pressure compensation technology of deep-sea sampling based on the real gas state equation
Acta Oceanologica Sinica ( IF 1.4 ) Pub Date : 2020-08-30 , DOI: 10.1007/s13131-020-1637-6
Shuo Wang , Shijun Wu , Canjun Yang

Compressed gas is usually used for the pressure compensation of the deep-sea pressure-maintaining sampler. The pressure and volume of the recovered fluid sample are highly related to the precharged gas. To better understand the behavior of the gas under high pressure, we present a new real gas state equation based on the compression factor Z which was derived from experimental data. Then theoretical calculation method of the pressure and volume of the sample was introduced based on this empirical gas state equation. Finally, the proposed calculation method was well verified by the high-pressure vessel experiment of the sampler under 115 MPa.

中文翻译:

基于真实气态方程的深海采样压力补偿技术

压缩气体通常用于深海保压采样器的压力补偿。回收的流体样品的压力和体积与预充气的气体高度相关。为了更好地了解高压下气体的行为,我们基于压缩系数Z提出了一个新的真实气体状态方程,该方程是从实验数据中得出的。然后,根据该经验气体状态方程,介绍了样品压力和体积的理论计算方法。最后,通过在115 MPa下采样器的高压容器实验对提出的计算方法进行了很好的验证。
更新日期:2020-08-30
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