地层的

Experimental results also indicate that the combustion front will break through along horizontal wellbore in case of high temperature and high oxygen concentration in the horizontal well because of improper regulation of injection and production.

但如果注采关系控制失当，特别是在火驱中后期，有可能出现燃烧前缘沿着水平井突进的现象，会在地层中形成大范围死油区并可能损毁水平井段，带来油藏和工程风险。

High school students sector in continental sedimentary material there are coal-bearing strata, can form a valuable mineral resources.

中生界陆相沉积中夹有含煤地层，可形成有价值的矿产资源。

Kaolin resources: coal stored in the two minutes of the coal-bearing strata Diego, coal and symbiotic.

高岭岩资源：储存于石炭二迭纪的煤系地层之中，与煤共生。

Carboniferous-Permian in the South of North China Basin is an important coal-bearing series with broad prospect in gas exploratory development in our country.

华北盆地南部石炭-二叠系是我国重要的含煤地层，其天然气勘探开发前景十分广阔。

The purpose of the present paper is to study the sedimentary character of the coal-bearing strata and the genesis of the kaolin rocks during late Paleozoic era.

本论文主要研究了山西省境内太原以北晚古生代煤系地层沉积特征及高岭岩的成因。

Least square method finds out the best coplanar pad combination using least square arithmetic, which provides the dip angle and azimuth.

最小二乘法使用最小二乘原理找出最优共面电极臂组合，利用这个最优组合确定的平面来计算地层倾角与倾向。

The quantitative calculation of the forces between drill bit and formation is vital for drilling trajectory control.

定量计算钻头与地层之间的作用力对井眼轨迹控制具有重要意义。

The on-site worker operate the drill should check carefully the gravity and viscosity of the slurry especially the content of sand content.

现场钻孔操作人员，要仔细检测泥浆比重及粘度，尤其是含砂率的检测，不同地层必须按要求进行相应调整。

While drilling with PDC Bit,Some problems are come out when using the methods of traditional recorder well.

岩屑录井是在现场判断地层岩性的主要手段之一，当使用PDC钻头时就出现了许多问题。

But it needs Drilling Stem Test to get reservoir off-take potential and formation parameters.

但是，要确定储层的产能和地层参数需要通过钻柱测试或缆式中途测试等才能实现。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐