摘要
鸡西煤田邱家勘探区煤层厚度0.5-1.5 m,其顶、底板多有厚层砂岩存在。煤层与顶、底板砂岩的声波时差达170μs/m,在测井曲线上表现为相对幅值较高,反映煤层界面的曲线陡直清晰,是该区煤层判别、定性、定厚的重要参数之一。
The thickness of coal seams in Qiujia exploration area,Jixi coalfield is generally 0.5～1.5 m,and the roof and floor of coal seams are often made of the thick sandstone.The sonic time difference between coal seam and roof and floor mudstone reaches to 170 μs/m,and the relative peak value presented on logging curves is rather high.The curves which reflecting coal seam boundary are usually straight and clear, which are one of the main parameters of distinguishing coal seam,characteristics and thickness in the area.
出处
《煤炭技术》
CAS
北大核心
2009年第5期142-143,共2页
Coal Technology
关键词
声波测井
时差
煤田勘探
鸡西煤田
sonic logging
time difference
coalfield exploration
Jixi coalfield
