Abstract: According to the analysis of 19 cores from 5 wells and the geothermal data of 8 wells, the regional average geothermal gradient and uncorrected heatflow in the Huoshaoshan oilfield of the eastern Junggar basin were calculated 23. 696C /km and 40. 84mW/m². These two values were both lower than the average of the basins of the east part of China and global continents.

Key words: H uoshaoshan oilfield, Rock thermal conductivity, Geothermal gradient, Heat flow density