mining progress

Bauxite mining and alumina production in Russia(Part A);

俄罗斯的铝土矿开采和氧化铝生产(上)

Mechanism and protection on subsidence and cover rock caving of mining;

开采引起的覆岩冒落及地表沉陷的机理与防护

To Realize Mining Coal of Holding Down at Village;

合理留设煤柱 实现村庄下压煤的安全经济开采

Study on the Coal Seam Exploitation Technique of the Big Inclination under “Dual Hard”;

“两硬”条件下大倾角煤层开采技术的研究

Environmental protection approaches in coal exploitation;

煤开采中的环境保护途径

The negative environmental effects of groundwater exploitation in the Yangtze River Delta and their preventive countermeasures;

长江三角洲地下水开采的负环境效应及其防治

A new recovery technology for heavy and high pour-point oil: Magnetic pour-viscosity reduction;

一种新型稠油、高凝油开采工艺——磁降凝降粘技术

Therefore, this study focused on how to enhance the recovery of coalbed methane reservoirs in China from the aspects of the working system of de-watering gas production process.

该数学模型及其定解为我国煤层气井在开发过程中井底压力如何降低以及降低幅度、速度控制在何种程度,给出了量的参数,为低渗煤层气井合理开采提供了一个新的途径。

The recovery and production for high-sulfur gas wells are the essential points but with great difficulty in the development of high-sulfur gas fields at present.

高含硫气井的开采与生产管理是目前高含硫气田开发的重点和难点。

Gas hydrates production——in case of mallik test well;

天然气水合物的开采——以马利克钻井为例

Yet, most of the mathematiccal models are for fractured vertical well and no model is specific on production characteristics of coalbed methane pinnate horizontal multilateral well.

目前,在煤层气数值模拟的研究方面国内外已经作了大量的工作,但数学模型多为直井压裂井,没有专门描述煤层气定向羽状水平井开采特征的数学模型。

A mathematical model and digital model are established for coalbed methane single well production, of which the equation of gas-water 2 facies flow in dual media and pressure sensitive model of coalbed fracture porosity and permeability are included, and related math model and its solution are proposed, by which theoretical basis is provided for further studying coalbed producing mechanism.

建立了煤层气单井开采的数学模型和数值模型 ,包括双重介质中气水两相流动方程、煤层裂缝孔隙度和渗透率的压力敏感性模型 ,并提出了相应的数值模型及其解法 ,为进一步研究煤层气产出机理提供了理论依

The article research of exploit coal mine, lay down the plan about exploit design and prevention and cure water, the result is well.

文章通过对团柏矿下组煤开采的可能性进行研究,制定出了开采设计方案和防治水工作方案以及防治水措施,经过认真组织实施,取得了较好的效果。

The geology circumstance problem caused by the exploiting of the underground raw materials of mineral products reads as follows: the subside, the crack of land, landslide, mud-rock flow and other geology calamity.

地下矿产资源的开采引发的地质环境问题主要有地面塌陷、地裂缝、滑坡、泥石流等地质灾害。

How to exploit coal bed gas more effective and appropriate become more and more important and imperative.

煤层气是一种清洁能源,有很大的利用价值,尤其是在当前国际国内经济高速发展,能源日渐短缺,环境压力和煤矿安全生产的严峻形势下,煤层气有效的合理开采工作显得更加急迫与重要。

Hyperbolic functions method for analysis of rock mass displacement due to deep mining;

深部开采岩体变形分析的双曲函数法

Development and pospect of geophysical technology in deep mining;

煤矿深部开采中的地球物理技术现状及展望

Influence of the key strata in deep mining to mining subsidence;

深部开采覆岩关键层对地表沉陷的影响

Experiment on mining upper limit improvement for fully mechanized longwall top coal caving mining face with thin overburden bedrock in Yangcun Mine;

杨村煤矿薄基岩区提高综放面开采上限试验