典型文献
Assessment of natural gas hydrate reservoirs at Site GMGS3-W19 in the Shenhu area, South China Sea based on various well logs
文献摘要：
To obtain the characteristics of the gas hydrate reservoirs at GMGS3-W19, extensive geophysical logging data and cores were analyzed to assess the reservoir properties. Sediment porosities were estimated from density, neutron, and nuclear magnetic resonance (NMR) logs. Both the resistivity and NMR logs were used to calculate gas hydrate saturations, the Simandoux model was employed to eliminate the effects of high clay content determined based on the ECS and core data. The density porosity was closely in agreement with the core-derived porosity, and the neutron porosity was higher while the NMR porosity was lower than the density porosity of sediments without hydrates. The resistivity log has higher vertical resolution than the NMR log and thus is more favorable for assessing gas hydrate saturation with strong heterogeneity. For the gas hydrate reservoirs at GMGS3-W19, the porosity, gas hydrate saturation and free gas saturation was 52.7％, 42.7％ and 10％, on average, respectively. The various logs provide different methods for the comprehensive evaluation of hydrate reservoir, which supports the selection of candidate site for gas hydrate production testing.
文献关键词：
中图分类号：
作者姓名：
Dong-ju Kang;Ying-feng Xie;Jing-an Lu;Tong Wang;Jin-qiang Liang;Hong-fei Lai;Yun-xin Fang
作者机构：
Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou),Guangzhou 511458,China;Guangzhou Marine Geological Survey,China Geological Survey,Ministry of Natural Resources,Guangzhou 510075,China
文献出处：
引用格式：
[1]Dong-ju Kang;Ying-feng Xie;Jing-an Lu;Tong Wang;Jin-qiang Liang;Hong-fei Lai;Yun-xin Fang-.Assessment of natural gas hydrate reservoirs at Site GMGS3-W19 in the Shenhu area, South China Sea based on various well logs)[J].中国地质（英文）,2022(03):383-392
A类：
GMGS3,W19
B类：
Assessment,natural,gas,reservoirs,Site,Shenhu,area,South,China,Sea,various,well,logs,To,obtain,characteristics,extensive,geophysical,logging,data,cores,were,analyzed,properties,Sediment,porosities,estimated,from,density,neutron,nuclear,magnetic,resonance,NMR,Both,resistivity,used,calculate,saturations,Simandoux,model,was,employed,eliminate,effects,clay,content,determined,ECS,porosity,closely,agreement,derived,higher,while,lower,than,sediments,without,hydrates,has,vertical,resolution,thus,more,favorable,assessing,strong,heterogeneity,For,free,average,respectively,provide,different,methods,comprehensive,evaluation,which,supports,selection,candidate,site,production,testing
AB值：
0.477571
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