查询词典 strata

Especially in nonresistant strata,in order to keep borehole wall stability we usually raise the drilling fluid density,but it seriously impede the rate of penetration.

尤其是不稳定地层，常常靠提高钻井液密度来保证井壁稳定，严重的制约了钻速的提高。

Qaidam basin is located in north of Qinghai province, and it is a large Mesozoicand Cenozoic oleaginous basin ,the total acreage is about 12×104km2. Sanhu regionin east of Qaidam basin is explored and founded the Quaternary biogas, the thicknessof Quaternary strata is 3200m;the diagenesis is in low degree, high porosity and highpermeability;the sand and mud are interbeddings, sand is reservior and mud is gassource rock and cover rock;stock size of Quaternary biogas achieve 12476×108m3 ,the explored geological reserve is 1472×108m3, the third class reserve is about 3500×108m3. It is the region where founded the largest scale of biogas in the world.

柴达木盆地地处青海省西北部，是我国西部一个大型中新生代陆相含油气盆地，总面积约12×104km2，柴达木盆地东部的三湖地区主要勘探第四系生物气藏，第四系地层厚3200m；地层成岩程度低，高孔高渗；第四系砂、泥岩互层，其中砂岩为储集层，泥岩为气源岩和盖层；第四系生物气资源量达12476×108m3，已探明地质储量1472×108m3，三级储量约3500×108m3，是目前世界上第四系发现生物气规模最大的地区。

In the present paper,the Palaeozoic strata in the Wenduhala region,Xinjiang are chemostratigraphically divided based on the systematic data of spectral semiquantitative analysis obtained from the regional geological survey by means of the optimal partitioning method and the half moving window method for the ordered sample analysis.

本文利用在区调工作中获得的较为系统的岩石光谱半定量全分析数据，采用有序样品最优分割法和对分移动窗口法，对新疆温都哈拉一带的古生代地层进行了化学地层划分，并与野外根据宏观岩性特征划分的岩石地层单位进行了比

Shimeng realgar deposit in Hunan has the typical three floor texture modle:top is silicatite,breccia is on middle,orpiment and realgar is under,both of strata and structure control the deposit's forming.

湖南石门雄黄矿床，具有典型的三层结构模式，顶部为硅质岩，中部为角砾岩，下部为雌－雄黄矿体。

In different engineering geological conditions, the construction process, the migration of overlying strata have different rules.

在不同工程地质条件下，施工过程中覆岩具有不同的运移规律。

The effective support design of stope can be made out only if the moving scope of overlying strata is determined.

只 有确定了采场上覆岩层的运动情况才能进行有效的采场支护设计。

The process of the movement of overlying strata and surface is simulated factually.

根据关键层理论，分析了覆岩地层结构与离层的关系，探讨了覆岩离层发育过程的阶段性和周期性。

It is a key for mine safe production to ensure the stability of overlying rock strata in stope.

确保采场上覆岩层稳定是矿井安全生产的关键。

Influences of overlying strata failure height of different exploitation methods, programs and geography terms are analyzed.

分析了不同开采方法及开采程序、不同地质条件对覆岩破坏高度的影响。

On the basis of adopting and analyzing comprehensively the available results, geology and seismic data as well as core data, this paper is focused on the analysis of strata and sedimentary facies character distribution of south margin of Junggar basin, and on the studies of structure frameworks and development of foreland overthrust belt.

本文在收集、整理前人的研究成果、地质及地震勘探及钻井资料的基础上，对准噶尔盆地南缘地层及沉积相带展布特征进行了研究分析，对准噶尔盆地南缘前陆冲断带构造格局与形成演化进行了分析研究。

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