开采

Keywords stress sensibility;effective stress;intermittent production;surge production;numerical simulation;Sulige gas field

应力敏感；有效应力；间歇式开采；波动式开采；数值模拟；苏里格气田

Analysis indicates that the mechanism of intermittent gas injection production mode to increase output is mainly binging domino of competition adsorption,while that of injection and production mode is mainly displacement .

描述了注气开采煤层气生产过程，分析表明间歇注气生产模式的增产机理主要是竞争吸附置换，而边注边采生产模式主要是驱替；反映基质孔隙扩散能力的综合传质系数不仅影响煤层气井的生产能力，而且影响矿井煤与瓦斯的突出；建立了单井间隙式注气开采煤层气的扩散渗流数学微分方程组；注气过程和采气过程渗流方程式形式相同，但质量源的流向不同，生产井内的边界条件不同。

Research on influence factors of capillary force in immiscible displacement ;2. Analysis indicates that the mechanism of intermittent gas injection production mode to increase output is mainly binging domino of competition adsorption,while that of injection and production mode is mainly displacement .

描述了注气开采煤层气生产过程，分析表明间歇注气生产模式的增产机理主要是竞争吸附置换，而边注边采生产模式主要是驱替；反映基质孔隙扩散能力的综合传质系数不仅影响煤层气井的生产能力，而且影响矿井煤与瓦斯的突出；建立了单井间隙式注气开采煤层气的扩散渗流数学微分方程组；注气过程和采气过程渗流方程式形式相同，但质量源的流向不同，生产井内的边界条件不同。

One type of serious accidents occurred in mine exploitation is water irruption.

矿井突水灾害是煤矿开采中特大事故类型之一，因此采矿前期的一个重要的地质任务就是探测采区内构造的分布及地层的含水性，查明是否存在断层、溶洞、裂隙等对开采可能带来不良影响的地质构造。

Jeosee :quite agree with you, mining the earth has been the villainy of us as the life-form in the metagalaxy.

非常同意你，对地球开采就是我们作为生命对宇宙所犯的罪恶，开采月球非常不明智。

Jeosee :quite agree with you, mining the earth has been the villainyof us as the life-form in the metagalaxy.

非常同意你，对地球开采就是我们作为生命对宇宙所犯的罪恶，开采月球非常不明智。

Jeosee :quite agree with you, mining the earth has beenthe villainy of us as the life-form in the metagalaxy.

非常同意你，对地球开采就是我们作为生命对宇宙所犯的罪恶，开采月球非常不明智。

The essence is how to use the mine microseism, under the unchanged mining intensity, which occurs upon accumulation of the respective low stresses, to predict the next extremum mine microseism due to occur during the stress mining environment classified by the increased isostress gradient instead of a period divided by the human experience.

其实质是在开采强度保持不变的前提下，用各自较低应力环境累计发生的矿山微震，预测下一个按等应力梯度增高的应力强度环境开采期间将要发生的极值矿山微震，而不是人为经验划定的某一时段。

When the gas reserves of the gas cap are relatively bigger, the gas cap and the oil column should be exploited simultaneously. When the volume of the gas cap is relatively smaller and the energy of the edge and bottom water is sufficient, the oil column should be exploited first depending on the natural energy, then water injection should be done artificially, and the gas cap should be exploited at last.

当气顶气储量相对较大时，采取气顶、油区同时开发；而对于气顶体积相对较小并且边、底水能量充足时，采取先依靠天然能量开采油区，然后人工注水，最后开采气顶。

Following a positive feasibility study, establishment of a joint venture, signing of an offtake agreement and a successful mining trial, BC Iron is well on track to begin mining at its Nullagine Project in Western Australia's Pilbara region later this year.

继可行性报告得出积极结论、合资项目建立、签署包销协议以及试开采成功之后，BC铁矿公司在位于西澳大利亚州皮尔巴拉地区的Nullagine项目上进展顺利，今年晚些时候将开始开采。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。