河成砂 的英文怎麼說

中文拼音 [héchéngshā]
河成砂 英文
fluvial sand
  • 河 : 1 （天然的和人工的大水道） river 2 （指銀河系） the milky way system; the galaxy 3 （特指黃河） t...
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  • 砂 : 名詞（沙子） sand; grit
  1. There are three genetic types of mineral deposits in the beiya ore district : cu - au polymetallic deposits related to alkaline porphyries, comprising porphyritic cu - au deposits and polymetallic skarn deposits related to quartz - albite porphyry and quartz - k - feldspar porphyry ; fe - au deposits related to gabbro or basalt magma, consisting of magmatic fe - au deposits and sedimentary polymetallic deposits formed in caves and lakes ; and palaeo - placers formed at the weathering surface, in lakes and in karsts

    北衙金礦有3種成因不同的礦床：與堿性斑巖有關的銅金多金屬礦，包括與石英鈉長斑巖和石英正長斑巖有關的斑巖型銅金礦床和矽卡巖型多金屬礦床；與輝長玄武巖漿有關的鐵金礦床，包括熔漿型鐵金礦床和噴流沉積型多金屬礦床，後者又有洞穴和湖相沉積環境之分；及古砂礦，有古風化殼型砂礦、河湖相古砂礦和洞穴沉積古砂礦。
  2. These may eventually coalesce to form an anastomosing system of channel sands within a broad valley.

    最後它們在寬闊的河谷內連接起來，形成一個交織的河道砂系統。
  3. Individual sand bodies, filling erosional features cut by a river, may be elongate or arcuate depending on the course of the river.

    充填在河流切割形成的侵蝕地貌中的各個砂體，在形狀上可以是伸長狀的或弓形的，這要決定於河流的河邊。
  4. Therdly because of the influence of terrain and geological structure, arenaceous resources of different regions are different in mu us. sands are mainly from riverway in northwest ; from efflorescent cretaceous sandstone on account of higher topography in the middle part of mu us ; and sands resources are intricated in southeast, mainly including riverway sands, sands blown by the wind and embedded sands under so

    3 、毛烏素沙地因受地形和地質構造影響，不同區域的砂質來源情況不盡相同，西北部地區主要為河道沙；中部地區地勢較高，為白堊系基巖裸露而風化成沙；東南部地區沙質來源情況復雜，主要有：現代河道砂、風積沙、也有埋藏在現代壤土之下的出露古沙。
  5. This paper, based on the grain - size analysis and the comparative result of the mz - o scatter gram of ancient aeolian sands in milanggouwan section with the modern dunes in mu us desert, holds that fossil eolian dunes are a proxy of the dune activation, and be regarded as " desert process ", while the overlying fluvio - lacustrine and palaeosols on the dunes are regarded as inter - desert process

    文中根據粒度分析及古今砂丘的mz ?散點圖比較結果，認為古代風成砂丘特別是古流動砂丘是砂丘活化的體現，視為「沙漠期」 ，而砂丘上覆的河湖相沉積與古土壤發育則可視為「間沙漠期」 。
  6. The yanchang formation is divided, for the first time, into six third - order sequences, each with an average time duration of about 4. 5 ma. the single sequence is composed of deltaic and lacustrine sandstones, siltstones and mudstones. the subaerial and subaqueous distributary channel and channel - mouth bar sandstone reservoirs are well developed mainly in the lowstand and highland systems tracts

    論文在富縣探區首次應用陸相層序地層學的觀點和方法，把延長組劃分為6個三級層序，平均時限4 . 5ma ，各層序由三角洲與湖泊相砂、泥巖沉積組成，主要在低位體系域和高位體系域發育水下（上）分流河道和河口砂壩砂巖儲層
  7. The variations in trace element contents and ratios may hold up a mirror to the lake - level fluctuations and climatic changes, which, in turn, have exerted a direct and important effect on the sequence stratigraphic development. collectively, the reservoir rocks from the yanchang formation consist dominantly of the delta front subfacies subaqueous distributary channel and channel - mouth bar microfacies and delta plain subfacies subaerial distributary channel microfacies fine - grained feldspar sandstones and siltstones. the reservoir rocks have been subjected to three stages of diagenetic and porosity evolution : ( 1 ) the porosity reduction by the mechanical compaction and chemical pressure solution during the early diagenetic stage ; ( 2 ) the porosity increase by the dissolution during the a substage of the late diagenetic stage, and ( 3 ) the porosity reduction by the cementation and filling during the b substage of the late diagenetic stage

    系統的儲層特徵研究表明，該區延長組儲層成因類型主要為三角洲前緣水下分流河道、河口砂壩及三角洲平原水上分流河道微相細粒長石砂巖、粉砂巖；儲層巖石經歷了壓實，膠結，溶蝕等成巖作用，歷經早成巖機械壓實和化學壓溶孔隙縮小期、晚成巖a亞期溶蝕作用孔隙擴大期及晚成巖a亞期（ b亞期）膠結充填孔隙縮小期三個成巖-孔隙演化階段；儲層物性總體上具有較低孔滲、低孔滲的特點，孔隙類型主要為粒間溶孔、殘余粒間孔隙、粒內溶孔、晶間孔及晶間溶孔，裂縫不發育，儲集巖排驅壓力和中值壓力較高，孔隙結構類型以細小孔-微孔隙，微細喉-微喉型為主。
  8. As regards sk ( bias angle ) and kg ( kurtosis ) values, the fluvio - lacustrine facies or palaeosols increases considerably compared with the aeolian sands. the former displays positive bias and the latter often approximately symmetrical distribution with only a minority negative bias

    就sk和kg變化而言，河湖相或古土壤值較之風成砂明顯增高，前者呈正偏，後者常常表現近對稱分佈，僅少數呈負偏。
  9. Mz, a, sk, kg and sc / d ( ratio of the sum of silt and clay to sand ) of fluvio - lacustrine, palaeosols and aeolian sands constitute an interlocking, multi - fluctuation process curve with peak and valle y values : the < & value of mz, o and sk values often increase accordingly from aeolian sands to its overlying fluvio - lacustrine facies or / and palaesols, the kg value heightens, too, and the sc / d value also basically consists with its change steps

    河湖相和古土壤與風成砂的mz 、 、 sk 、 kg以及sc d （粉砂粘土之和與砂的比值）構成一峰谷交替、犬牙交錯的鋸齒狀多波動過程線：常常是由風成砂至上覆河湖相或和古土壤， mz的值、 、 sk值相應增大， kg相應增高， sc d值亦與之變化步驟基本一致。
  10. They are skeletal sand bodies in system of delta and places of most reservoir distribution. the diagenetic processes that govern reservoir properties include the extent of compaction, cementation and dissolution of grains. we recognize that at the early diagenesis phase, mechanical and chemical compaction is very strong, which reduced the original porosity

    河口砂壩多位於分流河道或次一級分流河道河口部位，向湖盆中心呈放射狀分佈，因而河口砂壩砂體多構成朵狀砂體，覆蓋面積大、連片好，砂體厚度大，是本區已知油藏主要分佈區。
  11. The channel sandstones are as efficient reservoirs for its better reservoir quality, while the flood plain as the sealed beds

    河道砂體因物性好而成為有效儲層，而泛濫平原則成為封蓋和遮擋層。
  12. The alternative changes of paleoenvironment favored the formation and imbedding of brine, which is the source of salt - water intrusion ; and the paleochannel that formed during regressive of sea level is the path of salt - water intrusion

    海進時期，大面積的濱海平原被淹沒，在近海平原窪地滯留的海水經過蒸發、濃縮變為鹵水，成為鹹水入侵的物源；海退後陸源碎屑在濱海地區沉積形成了巨厚的古河道砂層。
  13. Grain - size accumulation percentage of the aeolian sands in the past 150 ka in milanggouwan section is mainly characterized by the aeolian palaeo - mobile dune sands, which are composed of majority fine sands and minority very fine sands. there is n ' t almost any silt and clay. those of the fluvial facies, especially the lacustrine facies and palaeosols, are mainly composed of very fine sands and also contain some quantities of silt and clay

    米浪溝灣剖面150kabp以來風成砂的粒度累積百分含量以古流動砂丘砂物質為主，其中以細砂含量最高，極細砂為次，幾乎不含粉砂與粘土；河流相、特別是湖沼相與古土壤以極細砂含量占優勢，且具一定含量的粉砂和粘土。
  14. To meander channel, because the channel continuously moved, form duplicate fluvial sand bodies largely, and there are many area of non sandbodies or in fluvial sandbodies, there are some abandoned channel, all make the continuous of sandbodies poor upper the meander channel sandbodies, so remained oil is mainly distributed in sandbodies in fluvial channel, abandoned channel and non sandbodies area nearby

    對曲流河砂體，由於平面上曲流河反復遷移和改造，以側蝕和側積方式形成了面積廣闊的復合曲流河砂體，內部發育有許多尖滅區及河間砂體，邊部及內還存在一定數量的廢棄河道，從而使曲流河上半部側向連通性變差，這類砂體中剩餘油主要分佈於河間砂、廢棄河道部位及尖滅區附近。
  15. The general characteristics of the grain - size distribution of different sedimentary facies, es pecially the variations of the parameters mz ( mean particle diameter ) and o ( standard deviation ) clearly show that the fluvio - lacustrine facies and palaeosols usually become finer in particles and worse in sorting than the aeolian sands

    該剖面不同沉積相粒度的一般分佈特徵尤其是粒度參數? mz 、的變化明顯表現出，河湖相或古土壤通常要較風成砂顆粒細化，分選相對較差。
  16. 4, by making use of micro pore and permeability apparatus and optopn multifunction microscope etc. advanced reservoir testing equipments, the ability to show heterogeneity from micro to macro has been improved largely. k - level / k is more than 1. 4 in south region reservoir, that is to say, the permeability in section is worse comparing to that of level direction, which is caused mainly by mud layers : different stone facies results in different micro feature, and in the south region, fluvial sandstone has cementation, compaction, corrosion and exchanging diagenesis, which occurred in b stage of early period

    4 、應用微孔滲儀和opton多功能顯微鏡等先進的儲層測試儀器設備，大大提高了從宏觀到微觀表徵儲層非均質的能力；南區儲層中k _ （水平） k _的比值一般大於1 . 4 ，即垂向上滲透率相對於水平滲透率差，這主要是砂巖中泥質紋層造成的；不同巖石相的微觀特徵不同，南區河道砂儲層主要有膠結、壓實、溶蝕和交代等成巖作用，成巖階段屬早成巖b期。
  17. Yanchang 4 + 5 sector to yanchang 3 sector lithofacies palaeogeography pattern was stable, because the constitution background was steady, and the source direction had no change, and supply was abundant. in those sectors the basin development was in lake retreat, and in the period of extinction gradually, and formatted construction delta deposit, but in yanchang 33 period the sedimentary speed were greater than construction speed, showing that overriding river mouth bars were abundant

    長4 + 5 ?長3期湖盆發展處于湖退、萎縮逐漸消亡時期，由於構造背景穩定，物源來源方向沒有變化，物源供給充分，所以巖相古地理格局基本一致，形成建設性三角洲沉積，但長3 ~ 3期沉積速率大於構造沉降速率，表現為疊置河口砂壩極其發育。
  18. Abstract : the paleochannel sandstone - type uranium deposit which can be exploitated by low - cost in - situ leach technology is one of the most economic and competitive uranium resources in recent uranium industry

    文摘:可採用低成本、原地浸出工藝開採的古河道砂巖型鈾礦是當今鈾工業中最具經濟價值和競爭力的鈾資源之一。
  19. Now most oil fields have been high water - cut, so studing fluvial sandbody architecture can provide important academic evidence to realize the distribution of remained oil and hold peak or settled production, fn addition to, how to combine the facts of macroscopical and microcosmic, and how to combine the result of well network and fields outcrop. then instruct production and practice, which is the stress of this article

    在目前大多數主力油田已進入高含水期的形勢下，研究河道砂內部建築結構，可以為了解剩餘油分佈規律，保持油田高產穩產，提供重要的理論依據。此外，如何將宏觀與微觀的因素結合起來，將密井網研究成果及野外露頭研究成果有機的結合起來，用於指導油田生產實踐，也是本次研究的重點之一。
  20. The distribution of the reservoir is controlled by the depositional environment and the faces which are mainly alluvial, delta and river. determined by the diagenesis and the latter reformation, the physical property of the reservoir in general is poor, ranked as class 3 - 4

    儲層分佈則受沉積環境、沉積相控制，主要有沖積扇、扇三角洲、河道砂等砂體，儲油物性則受成巖作用及後期改造影響而較差，屬級。
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