利用测井方法不仅可以有效地确定岩性,而且还可以可靠地确定地层的结构层序,从而为鉴定沉积环境提供依据。 近二十年来,国内外(主要是油田)已较广泛地利用自然电位测井曲线来研究沉积环境。但是,我国煤田很少甚至没有自然电位测井资料;相反,许多煤勘探区却有大量 Logging method not only can effectively determine the lithology, but also can reliably determine the structural sequence of the strata, so as to provide the basis for identifying the sedimentary environment. In the recent two decades, natural potential logging curves have been widely used at home and abroad (mainly oilfields) to study sedimentary environment. However, there is little or no natural potential well logging data in Chinese coalfields; on the contrary, there are many coal exploration areas