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低位
相关语句
  low-stand
    Fault break-slope and low-stand fan sequence in Dongying Sag
    东营凹陷深陷期构造坡折带与低位扇序列
短句来源
    Fan deposits such as underwater fan and basin bottom fan that developed in the low-stand system tract of sequence H_2 2-H_3 1 cut directly into deeper mudstone of lake facies and had supreme source conditions with faults as good hydrocarbon conducting systems.
    在H22 —H13 层序低位域发育水下扇、盆底扇等 ,这些低位砂岩复合体直接插入较深湖相泥岩中 ,油源条件好 ,断层是良好的油气输导体系。
短句来源
    The study shows that.sedimentary system of s 1 and s 2 member was braid fiver delta,which was a complete sequence of type I of the third level; the low-stand system tract mainly consisted of braid fiver, braid river delta plain and front,with aggradation as major form of sedimentation;
    研究认为 :该区沙一、二段沉积体系为辫状河三角洲 ,并组成了一个完整的I型三级层序 ,其中低位体系域主要由辫状河、辫状河三角洲平原及前缘组成 ,沉积作用以加积为主 ;
短句来源
    In the meantime,it is thought that the low-stand system has good reservoir forming conditions,and is a favorable exploration target in this area.
    同时认为 ,低位体系域成藏条件好 ,是本区有利的勘探目标。
短句来源
  low stand
    Arc-shaped Fault Break Slope System and Its Control on Low Stand Systems Sandbodies in Dongying Depression
    东营凹陷弧形断裂坡折带系统及其对低位域砂体的控制
短句来源
    Axialchannel and delta are foremost field for coarse deposits because either high stand or low stand coarse sediments are easy to remain on these fields.
    轴向水道和轴向三角洲是发育粗粒砂沉积物的最重要领域,因为该地带的粗粒沉积无论是高位还是低位期形成均可较好的保存下来; 而缓坡带和陡坡带的高位体系域的粗粒沉积大多受沉积后改造侵蚀而难以保留或保留不全。
短句来源
  “低位”译为未确定词的双语例句
    Eroded valley-topogenetic lowstand fan sendimentary system in north slop of Biyang depression and its significance in oil and gas exploration.
    泌阳凹陷北坡下切谷—低位扇沉积体系及其油气勘探意义
短句来源
    ORIGIN OF LOWSTAND FAN IN FAULTED-TOPOGRAPHIC BREAK & PLAY'S CHARACTERISTICS
    断裂坡折带低位扇成因及成藏特征
短句来源
    A NEW DISCUSSION ON LOWSTAND DEPOSITION MODELS IN YING-QIONG BASIN
    莺-琼盆地低位沉积模式的新探讨
短句来源
    The spatial assemblage characteristics of the lowstand system tract and their occurrence with oil and gas, Baodao-Songtao Sag, South China Sea Basin
    南海盆地宝岛—松涛凹陷低位体系域时空组合特征及其与油气赋存关系
短句来源
    Characteristics of time-space combination of lowstand system tracts and their exploration significance in eastern Qiongdongnan basin
    琼东南盆地东部低位体系域的时空组合特征及油气勘探意义
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  low-stand
Morphological features such as emerged and submerged terraces and wave-cut notches, as well as modern and dated fossil coral reefs along the coasts of the Red Sea in southern Sinai, provide a record of ten high-and low-stand sea-level events.
      
The progressive widening of the Adriatic epicontinental shelf, up to seven times its low-stand extent, also determines variations in the style of transgressive deposition by controlling major changes in oceanographic circulation.
      
The Younger Dryas draw down of the Black Sea starts at about 13.3 to 13?kyr?BP, with a maximum low-stand of 104?m at 11.5?kyr?BP.
      
Low-stand fluvial sheet sandstones characterized by non-cyclic sequence development and high facies stability occur, especially in the Neocomian and early Turonian.
      
We interpret the aeolianite and low-stand wedge as expressions of falling base level associated with ice-sheet growth at higher latitudes.
      
  low stand
During the last low stand of sea level, rivers and streams drained across the present northwestern Gulf of Mexico continental shelf depositing sediments in several shallow-water deltas near the present shelf-slope boundary.
      
During periods of low stand, more material is eroded from the continental shelf than during high stand, and it is deposited in the deep sea, in turn loading the Miocene salts and activating diapirism.
      
Post-caldera pantellerite lavas associated with an ~ 114-ky-old caldera erupted along the ring-fracture zone during a major low stand of sea level at about 67 Ka.
      
During reservoir low stand in winter, the hyporheic-hypolentic zone contains water from Ledbetter Creek and groundwater separated by an interface at ~10?cm below the channel bottom.
      
This article reviews and updates the geophysical and paleoecological evidence for lake-wide desiccation and describes the environmental conditions that aquatic species likely experienced during the low stand.
      
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On the basis of the basic principles of sequence stratigraphy,the formation of cyclical sedimentary stratum is driven by eustasy which is periodic,and by analysing the seismic,well log and nano-microfossil data of Pearl River Mouth Basin,an integrated study was conducted which is on the sequence stratigraphy of lower and middle Miocene stratum within and around Kaiping Sag. It is recognized that the characteristics of sequence stratigraphy of the sag is defined by its particular pale-ogeographic position ,that...

On the basis of the basic principles of sequence stratigraphy,the formation of cyclical sedimentary stratum is driven by eustasy which is periodic,and by analysing the seismic,well log and nano-microfossil data of Pearl River Mouth Basin,an integrated study was conducted which is on the sequence stratigraphy of lower and middle Miocene stratum within and around Kaiping Sag. It is recognized that the characteristics of sequence stratigraphy of the sag is defined by its particular pale-ogeographic position ,that is, its basinal settings below shelf-slope break for a long period of time allowing lowstand systems tracts to develop effectively within the sag. The basin floor fans in the lower parts of the tracts are thick,widespread,close to hydrocarbon kitchen in the sag and overlain by thick shales, therefore they take the first position of trapping hydrocarbon. A detail study should be conducted in conjunction with relevant structures in order to identify new exploration aspects in Pearl River Mouth Basin.

以层序地层学基本原理——周期性海平面升降控制旋回性地层沉积——为指导,根据地震、测井和古生物资料,对珠江口盆地开平凹陷及其围区的早中新世—中中新世地层进行系统的层序地层分析,认识到该区的层序地层学特点取决于其特殊的古地理位置。由于长期处于陆架坡折以下的盆地环境,开平凹陷在低海面时期发育了低位体系域。低位体系域下部的盆底扇厚度大,分布广,圈闭条件好,且紧邻生油凹陷。具备优先捕获油气的有利条件。应结合与之有关的构造对其进行深入研究,以开拓珠江口盆地油气勘探的新领域。

Oil prices in 1994 stayed low and the world oil market was still oversupplied despite increased demand and OPEC's freezing of production quotas, indicating the further weakening of OPEC's ability to control oil prices. The primary cause of this situation was the large increase in production by non-OPEC members. As the economies of the Western industrialized nations successively recover and the world e-conomy strengthens, world oil demand, especially in the Asian-Pacific region, will increase considerably. Meanwhile,...

Oil prices in 1994 stayed low and the world oil market was still oversupplied despite increased demand and OPEC's freezing of production quotas, indicating the further weakening of OPEC's ability to control oil prices. The primary cause of this situation was the large increase in production by non-OPEC members. As the economies of the Western industrialized nations successively recover and the world e-conomy strengthens, world oil demand, especially in the Asian-Pacific region, will increase considerably. Meanwhile, OPEC has decided to successively freeze its production quotas and non-OPEC members will have little ability to further increase their production, with a resulting increase in market shortages. Consequently, world oil prices, low for many years, are expected to rise in 1995. Although the question of Iraq's return to the oil market is still an uncertain factor, it will not influence the gradual and steady rise of oil prices.

1994年世界石油市场的基本态势是:在石油需求量上升而欧佩克冻结其石油生产配额的情况下,石油市场仍供过于求,石油价格低位徘徊,欧佩克控制油价的能力进一步减弱。其原因主要是非欧佩克石油生产国的石油产量有较大幅度的提高。随着西方工业化国家经济的相继复苏和世界经济的强劲增长,世界尤其是亚洲发展中国家的石油需求量将有较大幅度上升。与此同时,欧佩免已作出战略调整,将继续冻结其生产限额,而非欧佩克的增产幅度将明显降低,市场供应缺口将加大。因此,世界石油市场多年来的低油价可望在1995年走出低谷。虽然伊拉克重返石油市场的问题仍是一大不确定因素,但是不会影响1995年石油价格从低位徘徊转向低幅上扬。

Unloading can hardly be carried out in some unloading racks where the coniditions necessary for top unloading cranes are not available. The paper points out that crane shall be selected reasonably depending on the volatility of the medium to be unloaded, and shall receive siphon test prior to shipment, and that some measures shall be taken to improve crane' s leakproofness (sealing ring shall be of self-sealing design so as to compensate its abrasion,or, if "O" ring is used, its compressability shall be guaranteed)....

Unloading can hardly be carried out in some unloading racks where the coniditions necessary for top unloading cranes are not available. The paper points out that crane shall be selected reasonably depending on the volatility of the medium to be unloaded, and shall receive siphon test prior to shipment, and that some measures shall be taken to improve crane' s leakproofness (sealing ring shall be of self-sealing design so as to compensate its abrasion,or, if "O" ring is used, its compressability shall be guaranteed). For top unloading process, upper header installation is likely to decrease crane' s siphon performance, slowing down or even stopping unloading, whereas lower header installation can avoid inter-crane interference, and has lower leakproof requirement, thus being beneficial to successful unloading. In addition, if an air collector with a level indicator and a branch tube running to the vacuum pump is installed on the pipe prior to the pump inlet, the working condition can be greatly improved, vacuity of the header can be increased, and the successful top unloading of any liquid guaranteed.

有些卸车栈桥不能满足上卸鹤管的应用条件,使卸油作业难以进行,为此提出根据所卸介质的挥发性合理选择鹤管,鹤管出厂前做虹吸试验,加强鹤管的密封性,密封圈应设计成自封式,自动补偿密封圈磨损的能力,如采用“O”型圈时,应保证密封圈的压缩量可调。在上卸作业的工艺流程中,高位汇管布置会破坏鹤管的虹吸能力,使上卸速度减慢,甚至终止卸油,而低位汇管能避免鹤管间相互干扰,降低对管系严密性的要求,从而顺利地实现上卸作业。同时,若在泵入口管道的前部加一容气罐,并在其上设置液位计和支管到真空泵入口,则会大大改善工况,提高汇管的真空度,确保任何液体介质顺利上卸。

 
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