摘要
安鹤煤田伦掌勘探区煤层厚度4～7m,其顶、底板多有薄层泥岩存在。煤层与顶、底板泥岩的声波时差达150μsm/,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 Lunzhang exploration area, Anhe coalfield is generally 4-7m, and thin mudstones made up roof and floor of coal seams are very often. Sonic differential time between coal seam and roof and floor mudstone can be 150 μs/m, relative peak value presented on logging traces is rather high. The curves which reflecting coal seam boundary planes are usually steep and sharp and thus one of main decisive factor of coal seam distinguishing, characterizing and thickness determining in the area.
出处
《中国煤田地质》
2006年第2期67-68,共2页
Coal Geology of China
关键词
声波测井
时差
煤田勘探
安鹤煤田
acoustic well logging
time difference
coalfield exploration
Anhe coalfield
