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- W2374431389 abstract "As a special type of oil and gas reservoir rocks,volcanic rock has been successfully explorated and exploited in China and many other countries.However,due to its smaller size and relatively lower oil reserves than sedimentary rocks,and complexity of reservoir spaces,researches on the physical properties of volcanic rocks have been carried out only in the past decade.Most of the previous studies focus on the description of drilling cores and ananlysis of well log data,field investigations and physical property analysis of rocks has been done in Niutoushan edifice,eastern Fujian province,was carried out in order to obtain the spatial distribution of the pores and cracks with various genesis.The porosity and permeability of typical basaltic rocks have been analyzed.Four effusive facies basalt layers and two volcanic necks with rock outcrops can be identified.For effusive basaltic volcanic rocks,the porosity changes greatly from 5.34% to 23.73%,while low permeability is found for all the samples(average 0.173×10-3 μm2).Joints and cracks in the whole edifice are well developed.In addition to the columnar joints in volcanic plugs,crack explosion and condensation joints in the volcanic eruption phase,the contact between the lava and underlying rocks(high porosity zones),mantle xenoliths cracks,explode holes and post-volcano tectonic or weathering fractures also play important roles in the accumulation of petroleum.These facial spaces in different volcanic facies can form a interconnected network,bringing considerable potentials to volcanic edifices as oil-gas reservoirs." @default.
- W2374431389 created "2016-06-24" @default.
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- W2374431389 date "2011-01-01" @default.
- W2374431389 modified "2023-09-28" @default.
- W2374431389 title "Physical Properties of Basalt Reservoir of Paleovolcanic Edifices——An Analogous Study on Niutoushan Volcanic Edifice,Fujian Province,Eastern China" @default.
- W2374431389 hasPublicationYear "2011" @default.
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