煤田地质与勘探2019，Vol.47Issue(1)：56-63,8.DOI:10.3969/j.issn.1001-1986.2019.01.008
煤系泥页岩吸附性及其影响因素
Adsorbability of shale in coal measures and its influencing factors
摘要
Abstract
In order to reveal the adsorption and gas-bearing characteristics of shale in coal measures, this study was based on the gas content, isotherm adsorption, high-pressure mercury injection, and liquid nitrogen adsorption of more than 200 coal shale in six major coal fields in Shanxi Province and Junggar basin. XRD diffraction and other measured data, the adsorption and gas characteristics of shale were analyzed, and the influencing factors were discussed. The results show that the measured gas content of shale is between 0-5.87 cm3/g, concentrated at0.90-2.00 cm3/g; VL is between 0.11-6.3 cm3/g with an average of 1.57 cm3/g. The adsorption capacity of shale gas was strong; pL ranged from 0.16 to 8.65 MPa with an average of 3.28 MPa; the maximum adsorption capacity was positively correlated with porosity, organic matter abundance, organic matter maturity, and quality score of clay mineral. The relationship is negatively correlated with the quality score of illite-montmorillonite mixed layer and the average pore size.关键词
页岩气/煤系/吸附性/含气性/影响因素Key words
shale gas/coal measures/adsorbability/gas-bearing property/influencing factors分类
天文与地球科学引用本文复制引用
张宝鑫,傅雪海,张庆辉,周宝艳,刘正..煤系泥页岩吸附性及其影响因素[J].煤田地质与勘探,2019,47(1):56-63,8.基金项目
山西省煤基重点科技攻关项目(MQ2014-02) （MQ2014-02）
国家自然科学基金项目(41772158) （41772158）
