滲透率下降 的英文怎麼說

中文拼音 [shèntòulǜxiàjiàng]
滲透率下降 英文
permeability plugging
  • 滲 : 動詞（液體慢慢地透過或漏出） ooze; seep
  • 透 : Ⅰ動詞1 （滲透; 穿透） penetrate; pass [seep] through 2 （暗地裡告訴） tell secretly; let out; lea...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 滲透率 : fluid permeability
  • 滲透 : 1 [物理學] [生理學] osmosis2 （液體從細小空隙中透過） permeate; seep; permeation; seepage; inflow...
  1. Using the rock resistivity meter with simulating in - situ conditions, the relations between rock resistivity and temperature were observed from 6 sandstone samples with different porosity and permeability, while samples were brine water - saturated and subjected to certain confining pressure. it is found that the resistivities of water - saturated rock samples decrease in the form of power expression with the temperature increase. although the resistivity of brine water decreases with temperature in the same rule, it can not entirely account for the decreasing of rock resistivity. the cementation factor

    利用模擬地層條件巖芯電阻率測量儀，對6塊孔隙度滲透率各不相同的砂巖巖芯，在一定圍壓條件下，巖芯完全飽和鹽水時，考察了巖芯電阻率隨溫度的變化。發現飽和鹽水巖芯的電阻率隨溫度升高，以冪函數形式下降。雖然巖芯中飽和鹽水的電阻率同樣隨溫度以冪函數形式下降，但巖芯電阻率的下降不能完全用巖芯飽和鹽水的下降表徵。
  2. In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation

    針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象，考慮滲流與傳熱的相互作用，採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明，高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域，增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降，熱滲透深度擴大，熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域，孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用
  3. Practice during the period of four years shows : ( 1 ) settled water pond and three - stage filtration system with mechanical agitation can meet the requitments of reverse - osmosis components to the inlet water quality ; ( 2 ) it must be considered in the design that the demineralization efficiency of reverse - osmosis components will be decreased about 1 % 2 % in every year ; ( 3 ) in normal case, the outlet water from reverse - osmosis equipment shall enter into mixed bed via a decarbonator ; ( 4 ) the output capacity of the mixed bed must have a sufficient surplus, to avoid its influence on the water supply

    經4年的實踐表明： （ 1 ）採用機械攪拌澄清池和三級過濾的系統，可以達到反滲透組件對進水水質的要求； （ 2 ）反滲透組件的脫鹽率每年約降低1 % 2 % ，在設計中必須考慮； （ 3 ）一般情況下，反滲透裝置的出水應經過除碳器再送入混床； （ 4 ）混床的出力必須有足夠的余量，以免影響供水。
  4. The tritium permeability in 316l with films was measured at various temperatures, the results show that the tritium permeability in 316l with tin and natural oxide film are 2 orders of magnitude lower, that in 316l with sio2 is 3 - 4 orders of magnitude lower, that in 316l with tin + tic + tin is 4 - 5 orders of magnitude lower, and that in 316l with tin + tic + si02 is 4 - 6 orders of magnitude lower than that in 316l with pd film, at 200 - 600 ?

    測量了不同溫度下的帶膜316l的氚滲透率，發現在200 600范圍內，鍍tin膜與帶天然氧化膜的316l性能相近，均比鍍鈀316l降低2個數量級。鍍sio2膜比鍍鈀316l降低了3 4個數量級，鍍tin + tic + tin膜降低4 5個數量級，鍍tin + tic + sio2膜降低4 6個數量級。
  5. The high water sensitivity reservioir is that the permeability declines exceed 70 % when outside liquid enters formation

    摘要強水敏油藏指儲層遇到外來流體后，滲透率的下降幅度超過70 %的油藏。
  6. Based on single well process, the influence of reservoir parameter changes, such as permeability, reservoir thickness, average formation pressure, deformation factors on well productivity were studied by using the model under the depressure condition

    最後，以單井為對象，應用建立的數學模型研究了降壓開發條件下，滲透率、油層厚度、平均地層壓力、形變因子等儲層參數變化時對油井產能的影響規律。
  7. The production is generally very low in low permeability field, and stress - sensitivity makes it worse because the formation stress - sensitivity makes the permeability drop down with the decrease of pore pressure during reservoir producing. meinzer pointed out plastic deformation phenomena in porous media in 1928, and exponent and nilpotent formulations could characterize the relation between pressure and permeability

    針對壓力下降引起儲層滲透率下降的問題，國內外的專家和學者都進行了大量的研究工作，並將滲透率隨壓力變化關系歸結為單一指數關系或冪函數關系。
  8. The study shows that rock stress sensitivity has the following characteristics : rock property has little sensitivity to stress, of which porosity has the least, permeability less, and compression coefficient most ; the rock property decreases with formation pressure decrease ; in the same formation pressure drop, decrease amplitude of the rock property is not a continuous function of permeability but related to distribution scope of permeability

    研究得出，巖石的應力敏感性特徵主要有：巖石物性對應力的敏感性總體上不大，其中以孔隙度最小，滲透率次之，壓縮系數最大；巖石物性隨地層壓力的下降而下降；在同一地層壓降下，巖石物性下降幅度不是滲透率的連續函數，而是與滲透率分佈范圍有關，高滲透率范圍，巖石物性下降幅度小，低滲透率范圍，巖石物性下降幅度大。
  9. In view of geological and hydro - geological situations of the south anchor runyang yangtze river highway bridge, the paper bring forward mathematical model and calculation method of double deck structure groundwater, which can be used to lively calculate every layer ' s water table, so that we can realize every layer ' s settlement calculation and control ; establish the inter relationship between non - linear physical - mechanics parameter and hydro - geological parameter, objectively describe the non - linear change process of the porosity, hydraulic conductivity, specific storativity in the process of soil dewater and concretion

    針對潤揚長江公路大橋南錨場地地質、水文地質條件提出了雙層結構地下水運動的數學模型和計算方法，該方法可以實時計算出各分層的地下水位，實現了各分層沉降計算與控制研究；建立了土層非線性物理力學參數與水文地質參數之間的內在聯系，客觀地描述土層降水? ?固結過程中孔隙度、滲透系數和貯水率等參數非線性變化過程。
  10. Moreover, for sandstone and granite with a single fracture, there is obvious hysteresis effect for the restitution of permeability in the process of unloading for confining pressure

    在圍壓下降過程中，砂巖和單裂隙試件滲透率的恢復均存在明顯的應力滯後效應。
  11. In order to improve the effect on the development of heavy oil well and prevent energy of the reservoir from decreasing in m120, nitrogen & steam soak technology should be adopted

    摘要八面河油田面120區儲層滲透率較低，油層原油粘度較大，出現了熱采效果差，地層能量下降快的現象。
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