水合物稳定带

Net编程分析在该海域范围内天然气水合物稳定带厚度，讨论其分布特征，并以此来评估该区域的水合物资源量。

Net program is proposed to compute the thickness of the gas hydrate stability zone and potential volume of gas hydrate in the region .

假定南海南部温度梯度范围为59&90℃·km-1，得天然气水合物稳定带厚度与水深的关系方程。

Assuming that the thermal gradient in the sediments of the southern South China Sea ranges from 59 to 90 (℃· km ~ ( - 1 )), we obtain the function of the thickness of the gas hydrate stability zone ( GHSZ ) versus the water depth .

水合物稳定带（HSZ）的研究对天然气水合物的成矿与分布规律以及资源评价研究都具有重要的指导意义。

The study of the hydrate stability zone ( HSZ ) is of great significance in that it is beneficial to the research of the deposition and the distribution features of marine gas hydrate ore , and also to the resource assessment of the marine gas hydrate .

南海天然气水合物稳定带的影响因素

Factors affecting natural gas hydrate stability zone in the South China Sea

海底天然气水合物稳定带的特征分析

Character analysis of the marine gas hydrate stability zone

天然气水合物稳定带的计算方法与参数选择探讨

Discussion of the Calculation Methods and Selection of Parameters of the Gas Hydrate Stability Zone

海底温度和压力、地热梯度、气体成分、同生水盐度等控制着水合物稳定带基底的深度和厚度。

Submarine temperature , pressure , gas compositions , geothermal gradient and syngenetic water salinity control the depth of hydrate zone basement .

统计分析表明本区热流值与水合物稳定带厚度相关性很差，相关系数仅有0·12。

Statistical tests show that the heat flow values in the area are not in good agreement with the thickness of GHSZ , because the correlation coefficient is0.12 .

由于天然气水合物稳定带计算控制因素难以准确确定等因素，似海底反射与天然气水合物稳定带底界只是近似的对应关系。

Due to the difficulty to exactly determine in site controlling factors about gas hydrate stability zone calculation and others , BSRs are approximately corresponding to the BGHS .

通过简单评价天然气水合物稳定带计算的几种方法和参数选择，认为选择压力计算公式时要考虑孔隙水产生的压力、海底以上水柱的压力和大气压；

The authors simply evaluate several methods and the selection of parameters for the calculation of the gas hydrate stability zone . The results show that we must consider pore-water pressure , water-column pressure and atmospheric pressure when we select the pressure formula .

天然气水合物的稳定带受海底温度、沉积层地温梯度、压力、沉积物气体成分和流体盐度等影响，地温梯度值是确定水合物稳定带厚度的一个重要参数。

Gas hydrate stability zone is influenced by the sea temperature and sediment geothermal gradient , pressure , sediment elements , and fluid salinity . Geothermal gradient value is an important parameter to determine the thickness of hydrate stability zone .

文中对国际大洋钻探204航次在太平洋水合物海岭8个站位BSR深度以上气体水合物稳定带的沉积物进行了粒度分析和对比研究。

Grain size of sediments from eight drill holes of Ocean Drilling Program Leg 204 are analyzed to understand the relationship between the variation in grain-size of sediments and the occurrence of gas hydrates on the Hydrate Ridge , the East Pacific .

在海槽中部及南部，天然气水合物分布于水深大于500m的海域，水合物稳定带厚度分别为25～115m和90～365m。

In the middle and southern parts , gas hydrate appears at the sea depth over 500 meters , and the responding thickness of stable zones ranges 25 to 115 meters and 90 to 365 meters , respectively .

天然气水合物大部分分布在条件适宜的陆坡和岛坡上，冲绳海槽底部水合物稳定带厚度相对较薄。

Mostly , gas hydrates are concentrated in the sediments of continental slopes and trench areas .

基于实际海洋水合物资源的赋存状态及温度、压力条件，在人工多孔介质中物理模拟海底水合物稳定带的水合物藏进行了水合物的形成与分解的实验研究。

The formation and dissociation of methane hydrate in subsea sediments were experimentally studied in porous media under simulated hydrate stability zone conditions for subsea hydrate resources .