• 利用矿井抽采瓦斯进行发电目前矿井最有前途瓦斯开发项目之一。

    To utilize mine gas as fuel for electricity generation is one of the mine gas exploitation projects with great future in gassy coal mines.

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  • 研究结果对于利用应力场瓦斯通过瓦斯涌出量预测变形破坏具有现实指导意义

    The results have a referential value for using geostress field draining gas in coal bed and predicting deformations and failure of coal through gas emission.

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  • 顶板瓦斯抽采效果放负压直接相关

    The gas extraction effects is related to negative pressure of suction.

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  • 实践表明地面钻井区域瓦斯效果好。

    Practice indicated that the surface boreholes have better effect on gas drainage from mining area.

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  • 因此可以利用岩层控制理论指导瓦斯抽采预防瓦斯突出的发生。

    Hence, strata control theory can be used in gas extraction and control of coal and gas outburst.

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  • 实践证明,通过对矿井瓦斯有效抽采可以使矿井的通风管理瓦斯治理工作稳步提高,矿井安全可靠度增强。

    Practices have proved that effective gas extraction can improve ventilation management, gas control and reliability of work safety in the mine.

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  • 提高液压坑道钻机液压系统技术水平,对于改善钻机整机性能提高瓦斯抽采的成孔具有重要意义。

    It is significant to improve the hydraulic system for better performance of drilling rig and the higher ratio of finishing gas hole.

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  • 介绍瓦斯工作面放、尾放等专用巷道瓦斯技术解决了工作面期间瓦斯问题。

    Introduces the roadway gas drained technology for high gas mining face, it has resolved the gas control problems during primary mining face.

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  • 煤矿影响地面煤层气开发井下瓦斯有利部位

    Infection zones of coal mining are favorable place to coalbed methane recovery in ground or gas extraction in underground.

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  • 压增透”技术提高松软低透气性煤层瓦斯抽采有效途径

    "Pressure relief antireflective" technology is to improve the soft low-permeability coal seam gas extraction rate in an effective way.

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  • 前言:介绍保护层底板巷向保护层工作面施工下向穿钻孔保护层工作面空区瓦斯的具体做法,对取得的效果进行了分析总结

    This paper introduced the technical of using drilling downward hole from working surfale in protective coat bottom tu pull out goaf gas, and the effects were analysed and summarized.

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  • 通过连续降低消除13—1煤层瓦斯含量突出危险性,实现安全快速高效掘进

    Through pulling out gas continuously, the gas quantity was reduced and the gas burst of 13-1 coal bed was eliminated, and safe high-speed driving and high efficiency were realized.

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  • 摘要为了准确测定有效抽采半径提出基于钻孔瓦斯流量压力的测定方法

    Abstract: in order to measure effective drainage radius exactly, we propose the method based on gas flow and pressure of boreholes.

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  • 由于松软煤层瓦斯含气量透气性又极差一直煤层瓦斯抽采难点重点

    As the soft coal seam is high gas content and low permeability. it has been difficult and key for the coal seam gas extraction.

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  • 塔山裂隙特征分析基础,实施卸压瓦斯试验

    Taking tashan Mine as a example, according to the analysis based on the Characteristics of the Cracks in Stopes, experimental research of stress-relieve gas drainage is worried about.

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  • 提出计算方法避免由于受影响地表瓦斯钻孔引起的过大变形及其所造成破坏

    By using this method, the damage of surface gas drainage holes caused by induced excessive mining displacement can be effectively reduced if not being avoided.

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  • 由于场接替、效果诸多原因,随瓦斯方法首选

    Due to some reasons of the face arrangement, the gas-suction effect, and so on, the first choice is the method of gas-suction over mining.

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  • 上述方法存在问题钻孔法有效抽采孔段长度短、终孔孔径小、抽采效果差,巷道法施工工期长、费用昂贵、不利于瓦斯利用。

    The effect of gas discharging is limited by length , diameter of borehole in coal seam and high cost of laneway development.

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  • 上下联合煤层气方法涉及煤层气瓦斯抽采技术领域

    The invention provides a method for extracting coal bed gas by up-hole and down-hole combination, and relates to the technical field of extracting the coal bed gas (or named as gas).

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  • 模拟结果保护层保护层卸压瓦斯抽采设计提供合理建议

    Simulation results may bring forward reasonable Suggestions for the design of protective layer mining and relief-pressure gas drainage.

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  • 地面钻井影响煤层空区瓦斯进行煤矿瓦斯治理抽采利用有效方法

    Surface borehole well is a simply and high performance method to drawing coal bed and goaf gas which controlling and making good use of the coal mine gas.

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  • 地面钻井影响煤层空区瓦斯进行煤矿瓦斯治理抽采利用有效方法

    Surface borehole well is a simply and high performance method to drawing coal bed and goaf gas which controlling and making good use of the coal mine gas.

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