欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
海洋天然气水合物在地球物理资料上具有典型的似海底反射（BSR）特征，同时表现有振幅空白反射、低地震频率、高波阻抗及三类AVO响应等地球物理特征.根据最近油气勘探地震资料分析，在西沙海域沉积层中发现典型的BSRs，BSR一般分布在海底以下300~400 m，与地层斜交，还在BSR之上发现振幅空白，空白反射的时间厚度大约为50~100 ms.在叠前地震道集上，BSR下伏的游离气层具有三类AVO响应特征.综合地震振幅、频率、波阻抗、叠前道集响应等地球物理特征，推断西沙海域存在广泛分布的天然气水合物.
英文摘要：
Marine gas hydrates are usually characterized by typical bottom seafloor reflection （BSR）, blank zone, and low seismic, frequency, high P-impedance and type III AVO. According to the analyses of new seismic data, we indentified typical BSRs in the sediments of the Xisha waters. BSRs occurred 300~400 m below seafloor and crossed the sedimentary layers. The blank zone occurred above BSR with thickness of 50~100 ms. In the prestack, Free gas below BSRs has type III AVO. All geophysical evidence suggested that the gas hydrates were widely distributed in Xisha waters.
同期刊论文项目
同项目期刊论文
Gas hydrates saturation using geostatistical inversion in a fractured reservoir in the Krishna&ndash
Geophysical evidence for cyclic sediment deposition on the southern slope of Qiongdongnan Basin, Sou
Polygonal faults and their implications for hydrocarbon reservoirs in the southern Qiongdongnan Basi
Seismic Expression of Polygonal Faults and Its Impact on Fluid Flow Migration for Gas Hydrates Forma
Accuracy of the staggered-grid finite-difference method of the acoustic wave equation for marine sei
Elevated gas hydrate saturation within silt and silty clay sediments in the Shenhu area, South China
Well log anomalies caused by gas hydrate dissociation in the Shenhua area，northern slope of South Ch
期刊信息
位置：