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| 本帖產(chǎn)生 1 個 翻譯EPI ，點擊這里進行查看 | |||
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luckyman0125鐵桿木蟲 (職業(yè)作家)
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[求助]
幫同學發(fā)的，她需要翻譯兩小段英文，每個段子獎勵100BB （她說拒絕翻譯軟件的）
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第一段： This paper presents the results of imbibition tests using a reservoir crude oil and a reservoir brine solution with a high salinity and a suitable nanofluid that displaces crude oil from Berea sandstone (water-wet) and single glass capillaries. The IIT nanofluid is specially formulated to survive in a high salinity environment and is found to result in an efficiency of 50% for Berea sandstone compared to 17% using the brine alone at a reservoir temperature of 55oC. We also present a direct visual evidence of the underlying mechanism based on the structural disjoining pressure for the crude oil displacement using IIT nanofluid from the solid substrate in high salinity brine. These results aid our understanding of the role of the nanofluid in displacing crude oil from the rock especially in a high salinity environment containing Ca++ and Mg++ ions. Results are also reported using Berea sandstone and a nanofluid containing silica nanoparticles. 第二段： An experimental study was performed in which hexadecane was displaced by a micellar nanofluid in a glass capillary. Experiments have shown that a thick film was formed on the capillary wall after hexadecane was displaced by the nanofluid. The thick hexadecane film is unstable, and over time it breaks and forms a thin film. Once the thick film ruptures, it retracts and forms an annular rim (liquid ridge) that collects liquid. As the volume of the annular rim increases over time, it forms a double concave meniscus across the capillary and dewetting stops. The thin film on the right side of the double concave meniscus then breaks and the contact angle increases. The process repeats until the droplets build up all along the capillary wall. Finally, the droplets are displaced from the capillary wall by the nanofluid and spherical droplets appear inside the capillary. This is a novel phenomenon, since we did not observe any film formation when we used a solution without micelles. The theoretical model based on the lubrication approximation using the capillary pressure gradient was developed to estimate the annular rim dewetting velocity. The predicted dewetting velocity is found to be in fair agreement with the experimentally measured value. |
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ssssllllnnnn 
至尊木蟲 (知名作家)
Translator and Proofreader
- 翻譯EPI: 1690
- 應(yīng)助: 452 (碩士)
- 金幣: 31580.9
- 紅花: 100
- 帖子: 7681
- 在線: 19966.6小時
- 蟲號: 3328089
- 注冊: 2014-07-17
- 專業(yè): 腫瘤發(fā)生
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
luckyman0125: 金幣+100, ★★★很有幫助 2014-08-19 12:18:02
RXMCDM: 金幣+1, 多謝應(yīng)助！ 2014-08-19 12:18:04
luckyman0125: 金幣+100, ★★★很有幫助 2014-08-19 12:18:02
RXMCDM: 金幣+1, 多謝應(yīng)助！ 2014-08-19 12:18:04
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第二段： 實驗在一玻璃毛細管內(nèi)進行，毛細管內(nèi)用膠束納米流體替代十六烷。實驗已經(jīng)表明，用納米流體替代十六烷后可以在毛細管內(nèi)壁形成一厚膜。該十六烷厚膜不穩(wěn)定，隨時間的推移會破碎而形成一薄膜。一旦厚膜破裂便縮回，并形成一個環(huán)形凸緣（液體脊），可收集液體。隨時間的延長，環(huán)形凸緣的體積增加，從而在整個毛細管和去濕站形成一雙凹彎月面。右側(cè)雙凹彎月面的薄膜斷裂，使接觸角度增加。這個過程會反復進行，直到液滴累積于整個毛細血管壁。最后，用納米流體替換毛細管壁上的液滴，此時在毛細管內(nèi)出現(xiàn)球形液滴。這是一種新的現(xiàn)象，因為用不含膠束的液體時并沒有看到任何薄膜形成。利用毛細管壓力梯度并基于潤滑近似值建立了一種理論模型，用于估測環(huán)形凸緣的去濕速度。用該理論模型所預測的去濕速度實驗測得的值非常一致。 |
3樓2014-08-19 12:13:58
ssssllllnnnn
至尊木蟲 (知名作家)
Translator and Proofreader
- 翻譯EPI: 1690
- 應(yīng)助: 452 (碩士)
- 金幣: 31580.9
- 紅花: 100
- 帖子: 7681
- 在線: 19966.6小時
- 蟲號: 3328089
- 注冊: 2014-07-17
- 專業(yè): 腫瘤發(fā)生
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
luckyman0125: 金幣+100, 翻譯EPI+1, ★★★很有幫助 2014-08-19 12:17:54
luckyman0125: 金幣+100, 翻譯EPI+1, ★★★很有幫助 2014-08-19 12:17:54
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第一段： 本文介紹了自吸實驗的結(jié)果。該實驗利用一庫藏原油、含有高礦化度油藏鹽溶液，以及一適當?shù)募{米流體替換來自于貝雷砂巖（水濕）的原油和單玻璃毛細管進行。IIT納米流體為專門配制，適用于高鹽度的環(huán)境中。在55℃的油藏溫度條件下，該納米流體對貝雷砂巖的效率為50％，而只用鹽水時僅為17％。我們還提出了一種直接的視覺證據(jù)，以揭示使用IIT納米流體從高鹽度鹽水中的固體基質(zhì)替換原油的結(jié)構(gòu)分離壓力機制。這些結(jié)果有助于我們理解納米流體在從巖石，特別是在含有Ca++和Mg++的高鹽度環(huán)境中替換原油中的作用。同時還報告了用貝雷砂巖和一種含硅納米粒子的納米流體得到的結(jié)果。 |
2樓2014-08-19 11:34:17
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