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| 1 | Optimum location of surface wells for remote pressure relief coalbed methane drainage in mining areas显示文摘Based on engineering tests in the Huainan coal mining area,we studied alternative well location to improve the performance of surface wells for remote pressure relief of coalbed methane in mining areas.The key factors,affecting location and well gas production were analyzed by simulation tests for similar material.The exploitation results indicate that wells located in various positions on panels could achieve relatively better gas production in regions with thin Cenozoic layers,low mining heights and slow rate of longwall advancement,but their periods of gas production lasted less than 230 days,as opposed to wells in regions with thick Cenozoic layers,greater mining heights and fast rates of longwall advancement.Wells near panel margins achieved relatively better gas production and lasted longer than centerline wells.The rules of development of mining fractures in strata over panels control gas production of surface wells.Mining fractures located in areas determined by lines of compaction and the effect of mining are well developed and can be maintained for long periods of time.Placing the well at the end of panels and on the updip return airway side of panels,determined by lines of compaction and the effect of mining,would result in surface wells for remote pressure relief CBM obtaining their longest gas production periods and highest cumulative gas production. | HUANG, Huazhou SANG, Shuxun FANG, Liangcai LI, Guojun XU, Hongjie REN, Bo | 2010 | Mining Science and Technology2010，20，2： | 9 |
| 2 | Simulation of Paleotectonic Stress Fields and Distribution Prediction of Tectonic Fractures at the Hudi Coal Mine, Qinshui Basin显示文摘Study on tectonic fractures based on the inversion of tectonic stress fields is an effective method. In this study, a geological model was set up based on geological data from the Hudi Coal Mine, Qinshui Basin, a mechanical model was established under the condition of rock mechanics and geostress, and the finite element method was used to simulate the paleotectonic stress field. Based on the Griffith and Mohr-Coulomb criterion, the distribution of tectonic fractures in the Shanxi Formation during the Indosinian, Yanshanian, and Himalayan period can be predicted with the index of comprehensive rupture rate. The results show that the acting force of the Pacific Plate and the India Plate to the North China Plate formed the direction of principal stress is N-S, NW-SE, and NE-SW, respectively, in different periods in the study area. Changes in the direction and strength of the acting force led to the regional gradients of tectonic stress magnitude, which resulted in an asymmetrical distribution state of the stress conditions in different periods. It is suggested that the low-stress areas are mainly located in the fault zones and extend along the direction of the fault zones. Furthermore, the high-stress areas are located in the junction of fold belts and the binding site of multiple folds. The development of tectonic fractures was affected by the distribution of stress intensity and the tectonic position of folds and faults, which resulted in some developed areas with level Ⅰ and Ⅱ. There are obvious differences in the development of tectonic fractures in the fold and fault zones and the anticline and syncline structure at the same fold zones. The tectonic fractures of the Shanxi Formation during the Himalayan period are more developed than those during the Indosinian and Yanshanian period due to the superposition of the late tectonic movement to the early tectonic movement and the differences in the magnitude and direction of stress intensity. | FANG Huihuang SANG Shuxun WANG Jilin LIU Shiqi JU Wei | 2017 | Acta Geologica Sinica(English Edition)2017，91，6： | 8 |
| 3 | Production Characteristics and the Control Factors of Surface Wells for Relieved Methane Drainage in the Huainan Mining Area显示文摘在 Huainan 采矿区域基于很多表面排水井的生产数据,四为减轻的甲烷井典型生产特征打的现在的学习表演被认出,哪个为生产的稳定的类型和煤气的集中是大多数统治,是在排干的气体的体积和集中上由全面研究决定了,以及岩石的压力变化由采矿影响了。为排水井的生产差别的一些影响因素也被讨论。结果显示保护的煤缝接采矿在 overlying 阶层上有重要效果,它为甲烷解吸附作用和移植支持毛孔的开发和煤水库的破裂;然而,生产和排水井的稳定性被 overlying 阶层的变丑和损坏影响。阶层应力的第二分布被采矿工程引起,并且如果压力负担比抽取的带的能力大很好,煤气的生产将被被岩石运动损坏了的排水井影响。而且,盒子损坏首先发生在弱,由它的特殊机械性质的 lithologic 接口。排水井和生产地位的稳定性被不同的钻技术,煤气的集中的不平的分发,和嘴气体和甲烷的联合也从保护的层影响。 | XU Hongjie SANG Shuxun FANG Liangcai HUANG Huazhou | 2011 | Acta Geologica Sinica(English Edition)2011，85，4： | 6 |
| 4 | Hydrocarbon Generation Evolution of Permo-Carboniferous Rocks of the Bohai Bay Basin in China显示文摘Bohai 海湾盆在北方中国 Craton 是中生代沉淀和新生代裂缝盆。自从 Permo 含碳的烃来源岩石的免职,盆经历了许多构造事件。来源岩石经历了不一致高举,扭动,深埋葬,并且 magmatism 和导致那一打断或在烃来源岩石的进化期间逐步。我们调查了埋葬的 Permo 含碳的烃来源岩石历史,加热,并且烃产生,不是仅仅根据构造骚乱并且深深地埋葬了而且与容易的 % Ro 的数字模拟的磷灰石分裂磁道分析,液体包括大小,和应用程序上的新研究。来源岩石的加热温度继续从 Indosinian 升起到喜玛拉雅的舞台并且到达了最大值在晚喜玛拉雅。这在器官的成熟和烃产生的多重阶段期间导致了逐步的增加。学习描出构造阶段,烃产生的紧张和烃代的空间、时间的分发。烃产生发生在 Indosinian 期间, Yanshanian,并且特别地迟了喜玛拉雅。烃产生在晚喜玛拉雅的阶段期间是为在中国的 Bohai 海湾盆的 Permo 含碳的来源岩石的最重要的。 | ZHU Yanming QIN Yong SANG Shuxun CHEN Shangbin LAN Xiaodong | 2010 | Acta Geologica Sinica(English Edition)2010，84，2： | 5 |
| 5 | Influence of liquid water on coalbed methane adsorption:An experimental research on coal reservoirs in the south of Qinshui Basin显示文摘Using Isothermal Adsorption/Desorption System Model IS-100 and Electrohydraulic Servo Rock System Model MTS815 as the main apparatuses and collecting samples from the major coal reservoirs in the south of Qinshui Basin, a hot point region of coalbed methane exploration, the paper carries out systematical comparisons of the isothermal adsorption experimental data for injection water coal samples, equilibrium moisture samples and dry coal samples, probes and establishes an experimental method of injection water coal sample preparation and isothermal experiment to simulate real reservoir conditions, and then summaries the experimental regulations and discusses the mechanism of liquid water influencing coal methane adsorption. Results of the experiment indicate that: The Langmuir volume of injection water coal samples is notably larger than that of equilibrium moisture samples, as well as larger than or equivalent to that of dry coal samples; the Langmuir pressure of injection water coal samples is the highest, the next is equilibrium moisture samples, while the dry samples is the lowest, of which the experimental results of injection water samples to simulate real reservoir conditions are more close to the fact. Under the conditions of in-position reservoirs, liquid water in coals has evident influence on methane adsorption ability of coal matrix, which can increase the adsorbability of coal and make the adsorption regulation fit to Langmuir model better. Its major reason is the increase of wetting coal matrix adsorbability. The above experimental results overthrow the conventional cognition that liquid water has no influence on coalbed methane adsorption, which may lead to an improvement of the coalbed methane isothermal adsorption experimental method and of the reliability of coalbed methane resource evaluation and prediction. | Shuxun Sang Yanming Zhu Jing Zhang Xiaodong Zhang Shiyin Zhang | 2005 | Chinese Science Bulletin2005，50，S1： | 4 |
| 6 | Triple Medium Physical Model of Post Fracturing High-Rank Coal Reservoir in Southern Qinshui Basin显示文摘In this paper, influences on the reservoir permeability, the reservoir architecture and the fluid flow pattern caused by hydraulic fracturing are analyzed. Based on the structure and production fluid flow model of post fracturing high-rank coal reservoir, Warren-Root Model is improved. A new physical model that is more suitable for post fracturing high-rank coal reservoir is established. The results show that the width, the flow conductivity and the permeability of hydraulic fractures are much larger than natural fractures in coal bed reservoir. Hydraulic fracture changes the flow pattern of gas and flow channel to wellbore, thus should be treated as an independent medium. Warrant-Root Model has some limitations and can't give a comprehensive interpretation of seepage mechanism in post fracturing high-rank coal reservoir. Modified Warrant-Root Model simplifies coal bed reservoir to an ideal system with hydraulic fracture, orthogonal macroscopic fracture and cuboid matrix. Hydraulic fracture is double wing, vertical and symmetric to wellbore. Coal bed reservoir is divided into cuboids by hydraulic fracture and further by macroscopic fractures. Flow behaviors in coal bed reservoir are simplified to three step flows of gas and two step flows of water. The swap mode of methane between coal matrix and macroscopic fractures is pseudo steady fluid channeling. The flow behaviors of methane to wellbore no longer follow Darcy's Law and are mainly affected by inertia force. The flow pattern of water follows Darcy's Law. The new physical model is more suitable for post fracturing high-rank coal reservoir. | Shiqi Liu Shuxun Sang Qipeng Zhu Jiefang Zhang Hefeng Gao Huihu Liu Lixing Lin | 2015 | Journal of Earth Science2015，26，3： | 3 |
| 7 | Experimental study on the deformation behaviour,energy evolution law and failure mechanism of tectonic coal subjected to cyclic loads显示文摘Compared to intact coal,tectonic coal exhibits unique characteristics.The deformation behaviours under cyclic loading with different confining pressures and loading rates are monitored by MTS815 test system,and the mechanical and energy properties are analysed using experimental data.The results show that the stress-strain curve could be divided into four stages in a single cycle.The elastic strain and elastic energy density increase linearly with deviatoric stress and are proportional to the confining pressure and loading rate;irreversible strain and dissipated energy density increase exponentially with deviatoric stress,inversely proportional to the confining pressure and loading rate.The internal structure of tectonic coal is divided into three types,all of which are damaged under different deviatoric stress levels,thereby explaining the segmentation phenomenon of stress-strain curve of tectonic coal in the cyclic loading process.Tectonic coal exhibits nonlinear energy storage characteristics,which verifies why the tectonic coal is prone to coal and gas outburst from the principle of energy dissipation.In addition,the damage mechanism of tectonic coal is described from the point of energy distribution by introducing the concepts of crushing energy and friction energy. | Deyi Gao Shuxun Sang Shiqi Liu Jian Wu Jishi Geng Wang Tao Tengmin Sun | 2022 | International Journal of Mining Science and Technology2022，32，6： | 3 |
| 8 | Failure characteristics of surface vertical wells for relieved coal gas and their influencing factors in Huainan mining area显示文摘从通过洞基于数据并且记载,我们在 Huainan 采矿区域和它的影响因素为减轻的煤气体学习了表面排水井的失败特征。结果证明排水井的损坏位置主要在西方采矿区域在基岩的上面的节在厚泥土层位于低冲积层和 lithological 接口。casing 的失败深度是 244 鈥 ? 70 m 并且在大约 270 鈥 ? 专注 60 m 深。这些损坏位置主要在划分的房顶上面在垂直的节根据岩石层的三个地区位于弯曲地区。通常, casing 以前开始使脸线变形或损坏大约 30 鈥 ? 50 m。特殊形成结构和岩石团性质是 casing 失败,高采矿高度和快进展速度的直接原因是为岩石质量的基本原因损坏。然而,到 casing 失败的地上凿穿配置和间距不是很清楚的。 | Xu Honkie Sang Shuxun Fang Liangcai 6 Huang Huazhou Ren Bo | 2011 | Mining Science and Technology2011，21，1： | 3 |
| 9 | Production characteristics and drainage optimization of coalbed methane wells: A case study from low-permeability anthracite hosted reservoirs in southern Qinshui Basin, China显示文摘 | Huihu Liu Shuxun Sang Michael Formolo Mengxi Li Shiqi Liu Hongjie Xu Shikai An Junjun Li Xingzhen Wang | 2013 | Energy for Sustainable Development2013，，： | 2 |
| 10 | Stress relief coalbed methane drainage by surface vertical wells in china 显示文摘 | Shuxun Sang Hongjie Xu Liangcai Fang Guojun Li Huazhou Huang | 2010 | International Journal of Coal Geology2010，82，34： | 1 |
| 11 | Block scale investigation on gas content of coalbed methane reservoirs in southern Qinshui basin with statistical model and visual map显示文摘 | Liu Huihu Sang Shuxun Wang G G X | 2014 | Journal of Petroleum Science and Engineering2014，114，： | 1 |
| 12 | Growth characteristics and genetic types of pores and fractures in a high-rank coal reservoir of the southern Qinshui Basin显示文摘 | Liu Shiqi Sang Shuxun Liu Huihu | 2014 | Ore Geology Reviews2014，64，： | 1 |
| 13 | Evaluation of the synergetic gas-enrichment and higher-permeability regions for coalbed methane recovery with a fuzzy model显示文摘 | Huihu Liu Shuxun Sang Geoff G.X. Wang Yangmin Li Mengxi Li Shiqi Liu | 2012 | Energy2012，，1： | 1 |
| 14 | Accumulation and sources of heavy metals in urban topsoil:a case study from the city of Xuzhou,China显示文摘 | WANG Xuesong QIN Yong SANG Shuxun | 2005 | Environmental Geology2005，48，： | 1 |
| 15 | Stress relief coalbed methane drainage by surface vertical wells in China显示文摘 | SANG Shuxun XU Hongjie FANG Liangcai | 2010 | International Journal of Coal Geology2010，，82： | 1 |
| 16 | Geological con- trois over coal-bed methane well production in southern Qinshui basin 显示文摘 | Sang Shuxun Liu Huihu Li Yangmin | 2009 | Procedia Earth and Planetary Science2009，1，1： | 1 |
| 17 | Physical chemistry mechanism of influ- ence of liquid water on coalbed methane adsorption 显示文摘 | Zhang Shiyin Sang Shuxun | 2009 | Procedia Earth and Planetary Science2009，1，1： | 1 |
| 18 | Influence of liquid water on coalbed methane adsorption 显示文摘 | Sang Shuxun Zhu Yanming Zhang Jing | 1974 | Chinese Science Bulletin1974，，： | 1 |
| 19 | Stress relief coalbed methane drainage by surface vertical wells in China显示文摘 | Sang Shuxun Xu Hongjie Fang Liangcai | 2010 | International Journal of Coal Geology2010，82，1： | 1 |
| 20 | Geochemistry of rare earth elements in a marine influenced coal and its organic solvent extracts from the Antaibao mining district, Shanxi, China显示文摘 | Wenfeng Wang Yong Qin Shuxun Sang Yanming Zhu Chaoyong Wang Dominik J. Weiss | 2008 | International Journal of Coal Geology2008，，4： | 1 |
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