我国煤炭资源主要分布在西北和华北地区，仅新疆预测的煤炭储量就约占全国的 40%左右。西沟二矿距阜康市以东60km，属新疆昌吉回族自治州阜康市管辖。由于新疆能源基地建设的需要，开展了西沟二矿补充地质勘探工作，针对该矿后期开发的需要，应对其开采地质条件进行研究。同时，由于特殊的煤层赋存条件，新疆地区煤田火灾极易发生，煤田火烧区的存在，给煤矿勘探、建井、开采带来一定危害，造成煤炭资源的损失及对环境的影响，如何结合煤层煤质等特征，寻找适合于煤矿火烧区煤层自燃边界及分布的勘探手段和方法，成为重要的研究内容。通过研究，期望加强对深部资源的控制，为矿井建设及煤炭资源开发提供充分的地质依据，将西沟二矿建成中型矿井，为新疆能源基地做出贡献，具有一定的理论意义和重要的生产意义。 在系统分析区域地质和矿区地质的基础上，采用钻探、化验分析以及测井资料，利用煤、岩层在测井曲线上的响应特征，开展煤、岩层解释及地层对比研究。利用煤层全硫和吸氧量化验分析数据，开展煤自燃倾向性等级划分，并结合烧变岩岩性特征及露头观测分析，以烧变岩电磁参数及特征为基础，开展磁法勘探，并进行相应的数据处理和解释工作。通过水文观测资料，以及巷道岩石的含水情况分析，进行含（隔）水层（段）的划分，分析其特征以及它们之间的水力联系，在地下水的补给、径流与排泄特征基础上，利用大井法以及水文地质比拟法进行矿坑涌水量预算。按照岩土性质进行层段划分，开展各岩段稳定性评价。对煤层顶、底板岩石物理力学参数的实验结果进行分析，总结影响煤层顶底板及围岩稳定的地质因素，开展煤层顶、底板及围岩稳定性进行评价。利用瓦斯成分及含量测试数据，总结瓦斯特征。根据煤尘采样的爆炸试验数据，分析总结煤尘爆炸的可能性。 研究结果表明，区内侏罗统八道湾组根据含煤组合特点分为下(J1b1)、中(J1b2)以及上(J1b3)三段，共含煤9层，主要可采A4煤层以及全区大部可采的A3、A5以及A7煤层厚度均变化不大，主采煤层结构简单，厚度稳定~较稳定，矿区范围为一单斜构造，伴有两个平推断层。西沟二矿属高瓦斯矿井，煤层以Ⅰ类容易自燃和Ⅱ类易自燃煤层为主，主采煤层A4自燃火烧严重，地表上沿东西向展布，形成宽150~200m的烧变岩带，且横贯全区，火烧区的走向为正东西向，火烧区的倾向以40 ~45︒的倾角向南板状延伸，厚度为30~50m。八道湾组划分为4个层段，其中Ⅱ-1和Ⅱ-4段为隔水层，Ⅱ-2为强含水层，Ⅱ-3为弱含水层。地下水的补给主要与基岩裂隙孔隙水和烧变岩裂隙孔隙潜水有关。矿区的水文地质类型为以裂隙含水层充水为主，水文地质条件为中等（属Ⅱ类二型）。采用大井法和水文地质比拟法计算的矿坑涌水量数值分别为12164.5m3/d和5374.04m3/d，建议以水文地质比拟法作为矿井排水量的参考依据。A3、A4、A5以及A7煤层顶、底板稳固性一般。各煤层瓦斯含量较高，瓦斯含量最大为4.44ml/g，煤层瓦斯中甲烷成份最高可达67.27%，煤层瓦斯属沼气～氮气带，仅个别点属二氧化碳-氮气带。矿区内煤层煤尘均具有爆炸性。

Chinese coal resources are mainly distributed in the northwest and north china and only Xinjiang predicted reserves account for 40% of the country’s. Xigou coal mine is 60km from Fukang city and is under the jurisdiction of Changji Hui Aotonomous Prefecture, Xinjiang. Due to the need of Xinjiang energy base construction, supplementary geological exploratory work is carried out, and studying the geology condition of mining meets the need of the coal late development. On account of the complex conditions of coal seam storage, coal-field fire accidents of Xinjiang region easily happen. Coal field burning regions cause certain damage to exploration, well built and mining of coal mine and result in loss of coal resources and the impact of environment. How to make use of geophysical prospecting methods, combining with the characteristics of coal seam, to study the burning regions become the important research content. Through research, we hope to strengthen the control of deep resources, provide the sufficient geological basis for mine construction and coal resources development and make contribution to Xinjiang energy base, which have a certain theoretical significance and important production meaning. Based on systematic analysis of areal geology and minefield geology, combining with drilling, chemical analysis and logging data, making use of the response characteristics on well log of coal and rock stratum conducts the research on coal and rock stratum interpretation and stratigraphic correlation. Examination data of coal total sulfur and oxygen uptake is used to make grade classification of coal self-ignition tendency, and combining with lithological characteristics of burnt rock and outcrop observation, based on the electromagnetic parameters and characteristics of burnt rock, magnetic prospecting and the corresponding data processing and interpretation are done. Through hydrological observation data and water-bearing situation of roadway rock, mine aquifer classification are conducted and its characteristics and hydraulic connection between them are analyzed. On the basis of groundwater recharge, runoff and discharge characteristics, utilizing large-well method and hydrogeological comparison method makes operations of mine discharge. According to geotechnical characteristics, layers divisions and the stability evaluation of rock sections are conducted. Through analyzing experimental result of rock physics-mechanical properties of coal mine roof and floor and summarizing geological factors affecting the stability of coal mine roof, floor and surrounding rock, the stability evaluation of coal mine roof, floor and surrounding rock is carried out. Test date of gas content and composition is used to summarize gas characteristics. Utilizing explosion experimental data of coal dust sampling analyzes and summarizes the possibility of coal dust explosion. The research results show that according to the characteristics of coal-bearing combination, Jurassic Badaowan formation of well field is divided into 3 sections including the bottom(J1b1), the medium(J1b2) and the upper(J1b3) and has 9 coal-bearing seams in all. The thickness of the main minable seam A4 and the whole region mostly minable seam A3, A5 and A7 shows little change, main coal seams have simple structure and the thickness is stable and relatively stable. Well field has a monoclonal structure and 2 companion blatt flaws. Xigou coal mine belongs to the high gassy mine, and coal seam mainly areⅠeasily spontaneous coal seams andⅡspontaneous coal seams. The main coal seams A4 natural burning badly distributes along the west-east on the surface and forms 150~200m wide burnt rock belt across the entire area, the burning area is east-west trend and 40~45°tendency extending to the south with plate-like and has the thickness of 30~50m. Badaowan formation is divided into 4 water-bearing strata (water-resisting layers), Ⅱ-1 andⅡ-4 are the water-resisting layers, Ⅱ-2 is strongly water-bearing stratum and Ⅱ-3 is weak aquifer. Groundwater recharge mainly are related to bedrock fissure water and burnt rock pore water. The major hydrogeology type of well field is fissured aquifer filling and hydrogeology condition belongs to the medium(Ⅱtype 2). Making use of large-well method and hydrogeological comparison method, the computational values of water discharging respectively are 12164.5m3/d and 5374.04m3/d, and hydrogeological comparison method is suggested as the reference for coal mine drainage. The roof and floor stability of coal seam A3, A4, A5 and A7 is general. Every coal seam has higher gas content and the maximum is 4.44ml/g, the highest methane component of coal seam gas can reach 67.27%, coal seam gas is methane-nitrogen band and only very few points belong to carbon-nitrogen band. Coal seam and coal dust of coal mine are both explosive.