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On the base of large quantitative test, using coal petrography and organic geochemical data, the source of oil and gas in the coal-measures is analyzed. And it is concluded that the area's Yan'an group coal-bed has a low potential of oil production, and the oil and gas contained in the coal-measures and superjacent strata comes from underlying Upper Triassic Yanchang group strata. After a series of parameters of coal seam and surrounding rocks are tested, gas formation, storage, preservation, permeability of the coal-rock seam are analyzed and evaluated.

本文在大量测试工作基础上,利用煤岩学与有机地球化学资料,分析了煤系油气的来源,认为本区延安组煤系煤层生油潜力差,煤系及其上覆地层所含油气为下伏上三叠统延长组源岩所生,油气主要通过迭置的砂体、不整合面、构造裂缝等自下向上运移进入煤系;通过对煤层及围岩一系列物性参数的测试,分析与评价了煤岩层的生、储、盖、渗性能与可抽放性,得出主采4_(-2)号煤层属中等储集、低渗透层,围岩封闭性差,渗透性高,煤层瓦斯含量低,而顶板砂岩瓦斯含量高,为采面瓦斯涌出的主要来源。

Different from the imbricated or overlay discrezed numerical technique, an isoparametric map is proposed for the numerical code programming of this nonlocal model.

不同于迭盖离散数值技术,文中设计了实现非局部模型数值编码的等参映射方法。

推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。