The thermal conductivity,thermal generation rate,density and porosity of 10 core samples taken from GR1 borehole were tested.Their spatial distribution characteristics,interrelationships and main controlling factors were revealed.The average thermal conductivity and thermal generation rate of Cenozoic strata in the central Songliao Basin were established.It is estimated that the radioactive heat generation contribution of the basin sediments accounts for about 33%of the surface heat flow.The study shows that the sandstone and conglomerate in the 3900~4000 m buried depth have good heat transfer effect and can be used as the target layer of horizontal heat transfer.These measured rock thermal physical parameters provide solid basic data for basin simulation and geothermal related research in Songnen sedimentary Basin.
关键词
松嫩盆地/干热岩/岩石热物性
Key words
Songnen Basin/Dry hot rock/Thermal property of rock