摘要
根据岩心实验测试数据和测井资料,利用交会图技术和统计分析方法,对淮南煤田含煤地层中砂岩、泥岩和煤岩的密度,纵、横波速度等物性参数进行了系统研究.研究表明:各类岩石的密度以及纵、横波速度等物性参数变化范围都较大;埋藏深度对岩石物性参数的变化和各类岩石之间的物性参数差异有明显影响;岩石的物性参数之间具有很好的相关性,但碎屑岩与煤相应物性参数关系式的系数有很大差别;与岩石实验测试数据相比,测井分析数据更接近于地层状态下岩石的物性参数,而且分布范围较大,回归分析结果更具实用性.
Coal bearing strata mainly consist of sandstone, mudstone and coal in Huainan coalfield.With those data from logging and rock experiments in lab, the characteristics of the rock physic parameters including density, longitudinal wave velocity v_p and transversal wave velocity v_s are studied.Those parameters of each kind of rock varied in a wide range.With increase of depth, both rock parameters and their difference among rocks also increase.Those physic parameters of rocks show close relationship, while coefficients of regression equations for clastic rocks and coal are different.Rock physic parameters from logging data are more accurate for underground statuation than that from rock experiments in lab, and varied in wider ranges, so regression equations from logging data are more applicable.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2004年第2期177-181,共5页
Journal of China Coal Society
基金
创新研究群体基金资助项目(50221402)
国家杰出青年基金资助项目(50025413)
"十五"国家科技攻关重点资助项目(2001BA803B0403)
"973"资助项目(2002cb211707)
关键词
淮南煤田
含煤地层
物性参数
构造煤
碎屑岩
Huainan coalfield
coal bearing strata
physic parameters
tectonic coal
clastic rock
