查询词典 delta

According to the researches, the natural gas in this area is mainly controlled by structures and sedimentation, faults play a very important role in the natural gas's movement, the high spot areas of paleostructures are the advantageous gathering places of natural gas today; the sedimentary facies of the area is mainly the delta front subfacies, and the thickness of sand bed is relatively thin, the fuzzy diagnosis of natural gas indicates that the gas of this oil layer is distributed dispersively.

研究认为，本地区的天然气分布主要受构造和沉积控制，断层对天然气的运移起到至关重要的作用，古构造的高点地区是现今天然气的有利聚集区；本区沉积相主要为三角洲前缘亚相，砂体厚度相对较小，模糊识别天然气预测显示该油层天然气呈分散状分布；但总体看，由于本区天然气埋藏很浅，容易开发，且天然气预测分布面积之总和具一定规模，因此有较好的发展前景。

240 Meters core of 9 wells has been observed carefully and described delicately .it canbe divided 9 subfacies and 12 microfacies and it is considered that oil set C6 is composed ofbraided delta environment. the major type of sub-facies are deltaic front and predelta. Thesubaqueous distributary channel sand and distributary mouth bar are the major type of sand.

对长 6 油层组 9 口取心井进行岩心观察与描述，识别出 9 种层理和 12 种岩相，并结合测井资料研究，认为本研究区总体上为辫状河三角洲沉积体系，主要发育三角洲前缘亚相和前三角洲亚相，并划分了 6 种沉积微相，其储集砂体主要为三角洲前缘的水下分流河道砂体和河口坝砂体。

Based on grain size analysis and core observation, main deposition systems have been recognized, including incised valley infilling system, lacustrine system, sublacustrine fan system and delta system. Among them, valley infilling system occurs in later lowstand system tract distributed in northern area, and sublacustrine fan system lies in southern area in early lowstand system tract.

通过粒度分析和岩心观察，认为中油组主要沉积体系包括侵蚀沟谷充填沉积体系、湖泊沉积体系、湖底扇沉积体系、三角洲沉积体系，其中低位侵蚀沟谷主要分布在研究区北部，主要发育在低位体系域晚期，湖底扇主要分布在研究区南部阿克亚苏地区，主要为低位体系域早期沉积。

After studying the sequence stratigraphy and the provenance system, they definite the sedimentary type, sequence position, depositional area and formation mechanism of the gravity flows and set up the depositional models of the delta slump turbidite fan, slop-moving turbidity fan, nearshore subaqueous fans, sublacustrine fan and slope fan.

通过层序地层研究及物源供给系统分析，明确了重力流的沉积类型、层序位置、发育部位和形成机制，建立了三角洲滑塌浊积扇、坡移浊积扇、近岸水下扇、湖底扇和斜坡扇共五种类型的重力流发育模式。

Highprecision sequence stratigraphy was applied to divide and correlate the different sequence stratigraphical units from the Upper Cretaceous to plaeogene in the Biyang depression, and a sequence stratigraphic framework which can correlate the different sequence stratigraphical units was set up to point out that the ramp region of the northdepression is an oil and gas reservoir featured by altitude progradational delta and complex fault blocks, the inner belt of the north slope hinge zone is a low order faultlithologic oil and gas reservoir, the development stages and high order terms of the deep depressed area is a fluxoturbidite and sublacustrine fan lens trap, and the south actic region is a lithologic hydrocarbon reservoir development area.

运用高精度层序地层学的理论，系统地划分和对比泌阳凹陷上白垩统至古近系不同级别的层序地层单元，建立了凹陷内各级层序地层单元的对比框架，指出凹陷北部斜坡带为高位进积三角洲复杂断块群油气藏，北部斜坡枢纽带内带为低位扇断层-岩性油气藏、深凹区湖扩展期和高位期为滑塌浊积体及湖底扇透镜体圈闭，南部陡坡带为岩性油气藏发育区。

The division and correlation of sequence stratigraphic units are constructed for the fan delta deposits in the upper submember of the 4th member of the Shahejie Formation in the T76 block on the falling wall of the Shengbei fault in the Dongying depression,Shandong on the basis of geological data,seismic sections and well logs.

本文通过地质、地震、测井等资料，对东营凹陷胜北断层下降盘坨76块沙四上亚段扇三角洲沉积体层序地层单元进行了精确划分对比，将其划分为4个准层序、18个层组和29个单层。

By studying reservoir rock characteristics, diagenesis and physical property, investigation showed that there were distributary channel, branch channel, mouth bar, distal bar, sand sheet, lakeshore, shallow lake and limestone flat . we concluded that the reservoir of N1～N21 is low porosity and permeability reservoir with the types of primary porosity and secondary intergranular porosity, which is in the early diagenetic stage B into the late diagenetic stage A subperiod. The role of effecting reservoir physical property is deposition, cementation, dissolution and tectonic rupture. After researching of reservoir, we divided it into three categories and division the favorable facies belt and relatively favorable. We think that the favorable facies belt is braided river delta front and partly shallow lake in east of the Fault Ⅶ. favorable reservoir is in the first and the second class.

进一步研究了本区碎屑岩储层的岩石学特征、成岩作用特征、物性特征，研究认为该区储集体类型有分流河道砂体、分支河道砂体、河口坝、远砂坝、席状砂砂体、滨湖砂滩、浅湖砂坝砂体及灰坪；N1层属于低孔、特低渗储层，孔隙类型以原生、次生粒间溶孔为主；分析了影响储层物性的因素主要为沉积作用、胶结作用、溶蚀作用和构造破裂作用；进行了储层评价与有利相带预测，将储层分为三类并划分了有利区带、较有利区带，认为Ⅶ号断层以东的辫状河三角洲前缘亚相和部分浅湖亚相是N1的有利储集相带，储层以Ⅰ、Ⅱ类为主。

This paper analyzes and discusses the relationship between the sea surface rising and the land subsiding in Changjiang Delta area.

在有关学者以往研究工作的基础上，对长江三角洲地区的相对海平面上升和地面沉降问题作了分析探讨。

Sixty-six surficial sediment samples were collected from the Pearl River Delta and South China Sea and analyzed to acquire information about the distribution, sources and transport of polybrominated diphenyl ethers in the aquatic environment.

自珠江三角洲和南海北部海域采集了66个表层沉积物样品，以研究该区域中PBDEs的含量、分布、来源和在环境中的迁移。

Qiankun Technology was founded in 1991 by Delta Electronics and Japan Susumu Jin Industry Co., Ltd. joint venture to research and development, production and sales of high-density high-precision components, sensors and application modules.

乾坤科技创立于1991年由台达电与日本SUSUMU进工业株式会社合资，以研发、生产、销售高精度高密度之零组件、传感器及应用模块。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。