摘要
一定厚度构造煤的存在是煤与瓦斯突出发生的必要条件;同时,构造煤发育区域也往往是瓦斯富集区.因此,研究构造煤的物性参数具有重要意义.由于构造煤具有煤体强度低、孔隙率高、渗透率低等特点导致采样制样及准确获得影响其物性参数的主控因素困难,因此研究构造煤弹性和电性参数的主控因素,初步分析主控因素的影响机理,这对利用地球物理勘探技术探测构造煤赋存分布、突出预测具有重要的指导意义.本文在系统查阅国内外有关利用地球物理学手段预测煤与瓦斯突出文献的基础上,从以下3个方面论述了构造煤的物性参数测试的研究进展:(1)对比分析了当前阶段构造煤制样手段的优缺点.(2)探讨了煤岩物理性质、储层条件和测试条件对构造煤物性参数的影响.(3)物性参数在岩石物理模型建立、地震数据处理和岩性反演等预测煤与瓦斯突出方面的应用研究.最后提出了构造煤物性参数测试存在的主要问题及一些认识.
The existing of tectonic coal with certain thickness is the essential condition of coal and gas outburst;meanwhile,the development region of tectonic coal is also the gas enrichment area.Therefore,the study on physical parameters of tectonic coal has important significance.Difficulties in sampling and preparation and acquisition of the main controlling factors of physical parameters are caused by the low strength,high porosity and low permeability of structural coal.Thus studying the main controlling factors of elastic and electrical parameters and preliminarily analyzing the influence mechanism of main controlling factors are of guiding significance to explore the occurrence of structural coal and predict gas outburst by geophysical methods.Based on the systematic review of the data to predict coal bed methane enrichment area as well as coal and gas outburst by geophysical methods at home and abroad,this paper discussed the research progress of physical property parameters test of tectonic coal from the following three aspects：（1） the advantages and disadvantages of the current stage of tectonic coal sample preparation methods is compared and analyzed.（2） the physical parameters of tectonic coal is introduced from the physical properties of coal,reservoir conditions and test conditions.（3） The application and research in prediction of coal and gas outburst of physical parameters in rock physical model building,seismic data processing and lithological inversion.Finally,this paper puts forward several problems and suggestions about the physical property parameters test research in tectonic coal.
出处
《地球物理学进展》
CSCD
北大核心
2017年第4期1650-1658,共9页
Progress in Geophysics
基金
国家自然科学基金项目(41374131)
山西省煤基重点科技攻关项目(MQ2014-01)联合资助
关键词
构造煤
制样
超声波速
视电阻率
进展
tectonic coal
sample preparation
ultrasonic velocity
apparent resistivity
progress
