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双语推荐：控煤地质因素

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为合理规划布局四川省煤炭资源勘查、开发,以成煤条件及地质构造背景为主线,根据四川主要含煤地层分布、区域地质构造及控煤构造等因素,对四川煤炭资源赋存区进行了合理划分。全省共划分为9个赋煤带,12个煤田和7个煤产地。简述了9个赋煤带赋煤特征,指出了占全川资源总量78%的川南、华蓥山、广旺、乐威、攀枝花及盐源等六大重点煤田的主要构造及其赋煤特征。
This paper divides the coal-bearing provinces in Sichuan into 9 coal-bearing belts with 12 coal fields and 7 coal occurrences based on geological setting, coal-baring strata, geological structures and coal control factors and has a discussion on geological features of 9 coal-bearing belts. 6 coal fields such as South Sichuan, Huayingshan, Guangwang, Lewei, Panzhihua and Yanyuan coal field have 78%of total coal reserves in Sichuan.

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通过对妥坝煤田内沉积剖面的系统研究分析,对妥坝煤田的沉积相进行总结,判断煤田的沉积环境,恢复了妥坝煤田二叠世构造-岩相古地理格局。在认真研究妥坝煤田控煤因素,特别是控煤沉积环境及控煤构造样式基础上,研究后期地质事件所诱发的主要构造活动对煤层的影响,剖析了该煤田的主要聚煤规律。
This paper deals with sedimentary environment and coal accumulation for the Toba coal field in Qamdo, Tibet based on systematic study of the sedimentary section and reconstruction of the Late Permian tectonic-sedimentary facies and paleogeographical pattern in Toba.

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我国煤层气分布和富集受多种地质因素控制，就煤层含气性主控地质因素的地质构造条件、煤层埋藏深度、水文地质条件、沉积环境、煤层物性和岩浆活动等6个方面进行了系统研究。结果显示构造沉降作用、水力封堵和水力封闭控气作用、逆断层以及向斜核部有利于煤层气赋存；构造抬升作用、水力运移逸散作用、正断层、背斜核部以及陷落柱不利于煤层气赋存；随煤层埋深增加，煤层气吸附量逐渐增加，临界埋深之后吸附量开始降低；煤层顶、底板厚度越大，岩性越致密，越有利于煤层气保存；煤层气含量与煤厚呈正相关性。根据各地质因素的影响程度，煤层气分布赋存可概括为“多因素综合控制”和“多因素影响、某一两个因素主控”2种类型。
The distribution and enrichment of coalbed methane(CBM) are controlled by multiple geological factors in china,which including geological tectonic,coal burial depth,hydrogeological condition,sedimentary environment,coal physical properties and magmatic intrusion.The results show that,tectonic subsidence,hydraulic sealing and hydraulic jam-up processes,reverse fault,and syncline axis are beneficial for CBM preservation;tectonic uplift,hydraulic migration-escape process,normal fault,anticline axis,and collapse column are unfavorable factors for preserving CBM.With increasing coal burial depth,content increases but subsequently decreases starting at critical burial depth.The CBM can be more easily preserved within coals,which developing thicker and tighter roof and floor.The CBM content is positively related to coal thickness.According to the effect degree of the geological factors,the law of CBM distribution and enrichment can be summarized as comprehensively controlled by mult

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澳大利亚是世界第四大煤炭生产国和世界上最大的煤炭输出国.2000 年后,澳大利亚煤层气产业快速发展.Bowen-Surat 盆地是澳大利亚最大的煤层气盆地.应用石油地质综合分析方法,总结了Bowen-Surat 盆地的石油地质特征,进而分析了该盆地煤层气富集规律：平面上,煤层气富集在Taroom 槽和Chinchilla-Goondiwindi 斜坡中;剖面上,煤层气富集在二叠系Blackwater 群和侏罗系Walloon 组煤层中.针对煤层气藏在平面和剖面上的分布特点,结合沉积体系、气源岩、煤阶、孔隙度和渗透率等因素进行相关性分析,认为有8 个因素主要控制了煤层气藏的分布,即：沉积控类型,气源控范围,煤阶、埋深和孔渗控含量,构造封闭控层位.
Bowen-Surat Basin is a superimposed rifting basin located in the eastern Australian and the largest CBM basins in Australia. The paper, through a comprehensive analysis of petroleum geology methods, summarizes Bowen-Surat basin petroleum geology characteristics, and then analyzes CBM enrichment regularities. In the plane CBM is enriched in the Taroom trough and Chinchilla-Goondiwindi slopes, vertically enriched in Permian Blackwater Group and Jurassic Walloon coal measures. Aiming at the planar and vertical distribution regularities of CBM reservoirs, combining with sedimentary system, gas source rock, coal rank, porosity, permeability and other factors and making the correlation analysis, the paper concluded that there are eight main factors controlling the distribution of CBM reservoirs, i.e., sedimentary control, distribution range controlled by gas source rock, coal rank, depth, porosity and permeability, horizon controlled by structure confining.

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根据宜洛煤田深部勘探区的地层、煤层及总体构造特征,分析了断层、褶皱等构造因素对主要可采煤层二1煤层赋存和分布的控制作用。研究认为煤层的分布规律受聚煤环境及后期构造活动的改造等综合作用的控制,李沟向斜及沙坡背斜控制煤层埋深,北西西向断层使南部煤层抬升遭受剥蚀,形成大面积无煤区,近南北向断层使煤层的连续性遭到破坏。构造控煤因素的研究为矿井建设开发布局、安全生产提供了地质依据。
Based on strata, coal seams and general structural characteristics in deep part exploration area of the Yiluo coalfield, ana-lyzed controlling effects of fault, fold structural factors on main mineable coal seam II2 hosting and distribution in the area, expounded impacts from structural coal controlling factors on coal II1 thickness and coal quality. The study has considered that the distribution pat-tern of coal seams has controlled by integrated actions of coal accumulation environment and subsequent structural activities. The Li-gou syncline and Shapo anticline controlled coal seam buried depth;NWW faults made southern part coal seams elevated, denuded and formed large barren area, near NS faults made destruction of coal seam continuity. The study of structural coal controlling has provided geological basis for mine construction, exploitation layout, safety in production.

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基于沁水盆地南部潘庄区块主煤层的含气性特征，从煤阶、显微煤岩组分、构造、水文地质条件等4个方面探讨了影响该区块主煤层含气性的地质控制因素。结果表明：区块煤层含气性具有2个典型特征，太原组15号煤层含气性好于山西组3号煤层，与水力逸散作用对太原组煤层气保存条件破坏相对微弱的特点相关；含气饱和度随埋深加大呈现先减后增的变化，转折点埋深约500 m。同时发现，该区块随煤阶增高，含气量、孔隙度、吸附性均呈先升后降的变化，认为这是第4次煤化作用跃变对煤层气地质条件控制效应的具体体现；煤层含气量显现为次级向斜控气的典型特征。
Based on the gas-bearing property of main coal seams of Panzhuang Block in southern Qinshui Basin,the geological control factors such as coal rank,coal maceral,geologic structures,and hydrogeological conditions,which have influence on the gas-bearing property,were discussed in the paper.The results showed that the gas-bearing property of main coal seams had two typical characteristics:on the one hand, the gas-bearing property of No. 15 coal seam of Taiyuan Formation was better than that of No. 3 coal seam of Shanxi Formation,which was closely related with the characteristics that the hydraulic migration-escape process relatively weakly destroyed the CBM preservation conditions of Taiyuan Formation;on the other hand,with the burial depth increasing,the gas-bearing saturation increased first and then decreased, and the turning depth was around 500 meters.It was also found that with the coal rank heightening in this block,gas content,porosity and adsorption all increase first and then dec

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为评价煤层气资源开发潜力,对鸡西盆地煤岩的煤质、显微组分、显微裂隙、等温吸附及压汞孔隙结构进行了分析测试,结合钻井资料、瓦斯解吸、瓦斯涌出量及煤与瓦斯突出的资料,研究了该区的煤储层地质及储层物性特征,并分析了煤层气资源的控气地质控制因素构造、水文及顶底板封盖性。平麻逆冲断裂带及其附近的挤压揉皱构造有利于煤层气赋存,敦密断裂为导气断裂,不利于煤层气富集。水文控气主要分为3类：水力运移逸散控气作用、水力封闭控气作用及水力封堵控气作用,其对煤层气的富集控制作用迥异。顶盖板封盖性研究表明,穆棱组上部巨厚泥岩对煤层气有着良好的封闭性。基于 GIS 的多层次模糊数学评价方法计算了鸡西盆地城子河组的煤层气资源量,预测了煤层气有利区分布。结果表明,鸡西盆地城子河组的煤层气资源总量为1334.52×108 m3,平均资源丰度为0.42×108 m3/km2。鸡西盆地北部坳陷的麻山矿鸡西东海黑台一线,以及南部坳陷的中心地带,是煤层气勘探开发的最有利区域。
To evaluate the development potential of the coalbed methane (CBM)in Jixi basin,a series of experiments (including coal macerals, microfractures, adsorption isotherm and mercury porosimetry analysis and so on )are conducted on the collected coal samples.The drilling data,gas desorption,coal and gas outburst data are integrated to study the geological and physical properties ofthe coal reservoirs in the area.The geological controlling factors for CBM gases include structure, hydrology,and the sealing nature of the roof and floor lithology.The Pingma thrust fault and its nearby compressive crumpled structures are favorable for CBM preservation while the Dunmi normal fault is conducive,hence is not favored for CBM enrichment.Hydrological controlling factors for CBM gases are divided into three main categories:the hydraulic migration,hydraulic seal and hydraulic blocking,their roles on CBM enrichment are different.Based on the research of the roof lithology,the upper Muleng thick

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构造作用是控制煤系地层赋存主要的地质因素，燕山运动奠定了鲁西区内隆起与坳陷相间的基本构造格局，喜山运动使区内整体坳陷，从而形成如今之平原。燕山等多期构造运动对煤层的保存完整性造成了较大的影响，由于单县煤田所处的特殊构造位置使得含煤岩系得到了良好的保存。晚古生代是研究区的主要聚煤期，并形成较厚的具有工业价值的2、3煤。单县煤田是山东省重要的煤炭资源后备基地，通过分析区内构造演化规律及其控煤作用，可进一步了解区域内煤炭资源分布情况；为单县找煤方向及煤炭勘探工作提供参考，对煤矿开采也具有指导意义。
tectonism is the main geological factors to control coal strata, and the yanshan movement laid the basic tectonic framework in the western shandong area that uplift alternate with depression. the himalayan movement made the whole area depression, then forming a plain now. yanshan multiphase tectonic movement caused great influence to the preservation of the integrity of coal seam, because of the special tectonic position of danxian coal field, the coal-bearing rock series have got good preserved. late Paleozoic is a major coal accumulating period in the study area, and form a thicker coal with industrial value of 2, 3 coal. shanxian coal field is an important coal reserve base in shandong province, through the analysis of the tectonic evolution and controlling of coal, the area of coal resources distribution can be further known, providing reference for the future coal exploration in shanxian county, also having a guiding significance to coal mining.

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煤层气保存条件是评价低煤阶煤层气成藏条件的重要方面之一。硫磺沟矿区及周边地区侏罗系西山窑组发育多层煤层，且煤层厚度大，煤变质程度低，受喜马拉雅运动等影响，地质条件复杂。从区域构造、煤层盖层两个方面对低煤阶煤层气的保存进行研究，认为构造对煤层气含量及分布影响较大，构造控气样式中在逆冲断层与向斜缓翼组合，越靠近向斜轴部其含气量越大，且越靠近断层附近，含气量随深度增大的增速越大；叠瓦式逆冲断层与其间的褶皱组合中，越靠近逆冲的前端，其含气量越大。通过统计分析煤层顶板岩性及厚度两个因素，得出14-15号煤层盖层封盖性能最好，其次为9-10号煤。
CBM preservation condition is one of important aspects in low rank coal CBM reservoiring evaluation. The Jurassic Xishan?yao Formation in the Liuhuanggou mine area and periphery has developed multiple coal seams with large thickness, but low degree of coal metamorphism. Impacted by Himalayan and other movements, caused complex geological conditions. From tectonics and coal over?burden two aspects carried out studies on low rank coal CBM preservation, considered that impact from structures on CBM content and distribution is larger. In structural control of CBM pattern thrust and syncline gentle limb assemblage, the near to the syncline axis, the larger the CBM content, especially the near to faults, the speedup of CBM content will be larger. In assemblage of imbricate thrusts and folds between, the near the thrust front, the larger the CBM content will be. Through statistic analysis of coal roof lithology and thick?ness two factors, have educed the sealing performance of coal

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鄂尔多斯韩城地区煤层气地质条件复杂,含煤沉积体系特征是影响煤层气富集的重要因素之一。通过对韩城地区石炭—二叠系含煤沉积特征的研究,发现太原组主要为潟湖—潮坪—障壁岛沉积和陆表海碳酸盐岩台地沉积,山西组主要为河控三角洲沉积。从主要可采煤层的沉积相变、煤层厚度变化、煤岩物性变化及煤层顶底板封盖特征方面分析了沉积作用对煤层气富集的影响。研究表明:3号煤厚度较小,甚至出现变薄尖灭的现象;5号煤在全区发育且厚度较大,横向连续性好。煤层顶底板主要以泥岩、砂岩、粉砂岩为主,其中以厚层泥岩为顶底板的结构稳定的煤层更有利于煤层气的富集成藏。白马滩镇以东地区为2套煤层的有利开发区块。
The geological conditions for coalbed methane are complicated in Hancheng area of the Ordos Basin. The characteristics of coal-bearing depositional system work as the main controlling factor for the enrichment of coalbed methane. According to the features of coal-bearing sediments in Carboniferous and Permian in Hancheng area, the Taiyuan Formation constitutes of lagoon-tidal-barrier island sedimentation and carbonate flat sedimen-tation while the Shanxi Formation constitutes of fluvial-dominated delta sedimentation. The changes of sedimenta-tion, the thickness of coalbed, the petrophysical property and the lithology of roof and floor of coalbed are direct-ly concerned to analyze the influence of sedimentary environment on CBM enrichment. The coalbed no.3 is thin and even pinches out locally. The coalbed no.5, which is thick and stable, is widespread in the study area. The roof and floor of coalbed are mainly mudstone, sandstone and siltstone. The coalbed with stable structure and thic

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