地层的

In recent years, different research methods were applied and the accuracy of the stratigraphic study has been improved steadily.

近年来，随着研究精度的不断提高，在地层详细划分与地层单元的使用上却不很统一，甚至较为混乱。

The Es formation was divided into seven third order sequences based on the seismic, drilling and logging data, and plans deposition system plane distribution maps of different time were plotted by dominance phase principle. The lower Es4 is flood-overlake facies mainly; the upper Es4 is meandering stream and braided river delta deposition above the shore shallow lake background; in the Es3 period, the south mainly developed braided river, meandering stream delta, the northeast area main developed meandering stream delta, the middle area mainly developed semi-deep lakean d deep lake sediments. From lower Es3 to upper Es3, the delta scale gradually increased and the depositional area gradually moved to the east and the southeast; the Es2 period was dominated by shore-shallow lake sediments and widely developed braided river delta and delta deposits; the Es1 period was dominated by shore-shallow lake shoal deposits, and in the south developed meandering stream and braided river delta deposits.The lothological traps of the Shahejie group are mainly fluxoturbidite and stratum lateral pinch-out, and its formation and the distribution of the lothological trap were controlled mainly by the basin structure characteristic, palaeogeomorphology and tectonic activity and so on. It had a beneficial geological condition to develope sublacustrine slump turbidite fans in Jishan, Jiangjiadian and Wawu.

利用地震、钻井、测井等资料，将古近系沙河街组划分出7个三级层序，通过剖面沉积学分析，以优势相原则绘制不同时期各亚段沉积体系平面分布图：沙四下总体以洪水-漫湖沉积为特征，沙四上沉积时期是在滨浅湖背景之上发育了曲流河三角洲和辫状河三角洲沉积；沙三段沉积时期南部主要发育辫状河、曲流河三角洲，西北部地区发育曲流河三角洲，中部地区主要为深湖—半深湖沉积；由沙三下至沙三上，西北部三角洲规模逐渐增大，沉积范围逐渐向东、东南方向推进；沙二段沉积时期为滨浅湖沉积，在背景之上广泛发育了辫状河三角洲和三角洲沉积；沙一段以滨浅湖滩坝沉积为特征，南部发育了曲流河三角洲和辫状河三角洲沉积；沉积地层中的岩性圈闭以滑塌浊积岩岩性圈闭和地层侧向尖灭型岩性圈闭为主，其形成和分布主要受盆地结构、沉积古地貌和构造活动强度等因素控制，北部基山、南部江家店和瓦屋具有发育滑塌浊积扇的良好地质条件。

The Shoushangou Formation(P1ss)overlaps unconformably on pre-existing strata or geologic bodies; the Dashizhai Formation(P2ds) is the product of submarine volcanic eruption at the time of a maximum marine-flooding surface; and the Zhesi Formation (P2z) is the production of deposition during shrinkage of a sea basin.

寿山沟组(P1ss)地层呈超覆不整合覆于以前地层或地质体之上；大石寨组(P2ds)为达到最大海泛面时海下火山喷发的产物；哲斯组(P2z)是海盆地萎缩期的沉积产物。

Many of related references at home and abroad were studied in the paper, Finite Element simulation research method was put forward as the main research method on the mechanism of borehole undergauge induced by formation creep.

本文收集了国内外关于地层蠕变方面的大量文献资料，提出用有限元仿真模拟研究方法作为研究地层蠕变导致井眼缩径机理的主要研究方法。

Their lithologic types are dominated by vitric tuff vitric crystal tuff and medium-fine tuffy sandstone and their genetic types mainly belong to complicated type of the airborne-water-carried and the airborne type.

研究了华北中部太原组含煤地层中火山事件层的岩石学识别标志和分布规律。研究结果表明：含煤地层中广泛发育火山事件层。火山事件层的岩石类型以玻屑凝灰岩、玻屑晶屑凝灰岩和凝灰质中细粒砂岩为主。

Each formation will create different effects on the wellbore due to the paraffin content, depth and formation porosities.

由于石蜡含量，井深和地层孔隙度的不同每个地层都会对井筒产生不同的影响。

Reinjection is applied for sewage disposal in Daniudi gasfield. Sewage contains some sulfate ion. The main ion in formation water with high salinity includes K, Na, Ca, Mg and Ba. So reinjected sewage combining with original formation water will generate scaling, And the scaling type is mainly sulfate scale.

中文摘要：大牛地气田对污水处理采用回注方法，污水中含有一定量的硫酸根离子，而地层水中也有很高的矿化度，主要离子为钾、钠、钙、镁、钡，因此回注污水与原地层水相混，会产生结垢现象，结垢类型主要为硫酸盐垢。

A framework of 2D high resolution geologic correlation is built for the 2nd member of Hetaoyuan Fm of delta facies and the characteristics of combination and plane distrib.

并在此基础上在核二段三角洲相地层建立了二维高分辨率地层对比格架，分析了不同的沉积时期各沉积微相的组合特征和平面分布特征。

Scientists point out that the it is very difficult for these duck-billed dinosaur fossil bones to move to more younger strata as of the fracture formation.

科学家们指出，这些鸭嘴龙的骨骼化石很难随着地层断裂迁移到较为年轻的地层之中。

The cement with high elastic modulus is recommended in soft formation, and the cement with low elastic modulus is preferential in hard formation.

在固井作业时，对软地层推荐采用弹性模量大的水泥，对硬地层推荐采用弹性模量小的水泥。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。