Arrow is among Australia's largest holders of coal-seam gas acreage.
Arrow是在澳洲拥有煤层气储量最大的公司之一。
Most of it comes from off the coast of Western Australia, and most of this, like the coal-seam gas, is destined for Asia.
这其中绝大多数出自澳大利亚西海岸，此地出产的煤层气等绝大多数产品都销往亚洲。
Main geologic factors that influence recoverability of coal-seam gas include coal-bed permeability, reservoir pressure, gas saturation and desorption rate.
影响煤层气可采性的主要地质因素有：煤层的渗透性、储层压力、含气饱和度、解吸率等。
During the exploitation process of the coal-seam gas, with the seam pressure decreasing and the effective pressure increasing, the coal-seam permeability declines.
在煤层气开发过程中，随着储层压力下降，有效压力增加，煤储层渗透率下降。
The amount of coal-seam gas is mainly controlled by the depositional environment, coal evolution degree, burial depth, hydrologic condition and structural conditions.
煤层含气量主要受控于煤岩的沉积环境、煤演化程度、埋藏深度、水文条件与构造条件。
China is keen to replicate the dramatic increases in U. S. domestic natural-gas reserves that have come from tapping unconventional supplies such as shale and coal-seam gas, analysts say.
分析人士说，中国急于象美国一样通过开发非常规的页岩气及煤层气使国内天然气储备大幅增长。
The paper researchs the principle of protective seam mining, hydraulic slotting method and executing-digging technology to avoid risk of coal-gas outburst, and its practices in coal mine.
通过分析近距离保护层开采、水力掏槽法及边抽边掘技术防治煤与瓦斯突出原理及实践应用，从而有利于煤与瓦斯突出矿井选择合理有效的防突技术。
The gas pressure is a main factor of deciding gas content in coal seam. It is an important parameter of the dangerous prediction for coal and gas outburst too.
煤层瓦斯压力是决定煤层瓦斯含量的一个主要因素，也是煤与瓦斯突出危险性预测的一个重要参数。
Being influenced by the dual factor of the coal seam gas pressure difference and ventilation, the coal seam is the main route at the later period of the gas release.
受煤层瓦斯压力差和煤层的透气性双重因素影响，煤层是瓦斯后期释放的主要通道。
Exploration evaluation coal seam gas is a base of coal seam gas exploration and developing.
煤层气的勘探评价，是开展煤层气勘探与开发工作的基础。
Research on coal bedding structure is the theory foundation and precondition of coal seam gas exploitation.
煤体层理结构的研究是煤层气开发开采的理论基础和前提条件。
There are abundant coal and seam gas resources in East Yunnan.
滇东地区有较丰富的煤炭和煤层气资源。
So it is feasible used the logging data to forecast coal seam gas content, and the applied value is enhance further.
证明用测井资料预测煤层瓦斯含量是可行的，从而进一步加强了测井资料的实际应用价值。
Discussed the control factors forming hydrate in coal seam, and analyzed the characteristic of gas hydrate formation and decompose by experiment observe.
探讨了在煤层中瓦斯水合物生成的控制因素，并通过实验观察分析了瓦斯水合物生成和分解的特性。
According to seepage theory, the gas seepage from drainage hole along coal seam is studied by means of electrical simulation experiment.
根据渗流理论，本文对沿层抽放钻孔周围的瓦斯渗流问题进行了电模拟实验研究。
Based on the analysis of gas source at the working face with "three-soft" unsteady coal seam, the authors introduce the principle and method of gas suction by roof-rock drilling.
前言：通过对“三软”不稳定煤层采煤工作面瓦斯来源的分析，介绍了采用顶板岩石钻孔抽放解决瓦斯问题的原理和方法。
It is suggested that coal lithological types with high content vitrinites have better physical behavior conditions for coal seam gas accumulation.
提出了镜质组含量高的煤岩类型有较好的煤层气储集物性条件。
This paper analyzes the causes of difficult drainage of Guizhou coal seam gas to provide references for finding out an effective method suitable for Guizhou coal seam gas drainage.
探讨贵州煤矿煤层气不易抽放的原因，为找到适合贵州抽放煤层气的有效方法提供依据。
The enlargement of hole diameter increased the exposed area and pressure releasing range of bored coal seam, and raised gas drainage amount and discharging effect from holes.
通过扩大钻孔的直径，从而达到增加钻孔的煤层暴露面积和卸压范围，增大钻孔抽排瓦斯量，提高钻孔的抽排效果。
At the present, the problem which is urgently to be solved in gas discharge is the drilling technology in soft coal seam gas discharge, especially the drilling technology of the deep hole.
目前在瓦斯抽放中急待解决的问题是软煤层瓦斯抽放的打钻技术，尤其是深孔打钻技术。
The grey system GM (1, 1) model for predicting gas content in coal seam is established by applying the grey system theory and the prediction model is modified with the residual model.
应用灰色系统理论，建立了预测煤层瓦斯含量的灰色系统GM(1,1)模型，并用残差模型对预测模型进行了修正。
Little faults in coal seam are important for coal and gas outburst prevention and control, and water outburst prevention and control.
煤层小断层对矿井煤与瓦斯突出及矿井突水防治具有重要的实际意义。
Essential way of solving the gas drainage problem of low permeability coal seam is to increase coal seam permeability.
解决低透气性煤层瓦斯抽放问题的根本途径是增加煤层的透气性。
Based on consideration of stress sensitivity of coal seam permeability, the single-phase flow rule of coal-bed gas in coal and cleats is studied by using non-equilibrium adsorption model.
在考虑煤层渗透率应力敏感性的基础上，采用非平衡态吸附模型，研究单相煤层气在煤体和割理中的流动规律。
The storage, application and forecast of coal seam gas in Hegang mine field are introduced, and the detailed mining area and way for earlier and later stage are provided.
介绍了鹤岗矿务局煤层气储量、利用情况和发展前景，提出了具体开采区域和前、后期的开采方式。
Gas concentrations drop, and the effective gas drainage period of holes is shortened, because pores and cracks in the coal seam become completely developed after gas drainage.
针对煤层钻孔抽放瓦斯后煤层孔隙裂隙发育致使瓦斯浓度下降，钻孔有效抽放期缩短的技术难题，首次提出二次封孔方法。
As the soft coal seam is high gas content and low permeability. it has been difficult and key for the coal seam gas extraction.
由于松软煤层的瓦斯含气量高而透气性又极差，一直是本煤层瓦斯抽采的难点和重点。
When the protective coal seam is mined, the gas management on the protected coal seam is a very important job.
保护层开采时，对被保护层的瓦斯治理是一项非常重要的工作。
When the protective coal seam is mined, the gas management on the protected coal seam is a very important job.
保护层开采时，对被保护层的瓦斯治理是一项非常重要的工作。
应用推荐