改良水井 的英文怎麼說
中文拼音 [gǎiliángshuǐjǐng]
改良水井
英文
improved well- 改 : Ⅰ動詞1 (改變) change; transform 2 (修改) revise; alter; modify 3 (改正) rectify; correct 4 ...
- 良 : Ⅰ名詞1. (善良的人) good people 2. (姓氏) a surname Ⅱ形容詞(好) good; fine; nice Ⅲ副詞(很) very; very much; indeed
- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 井 : Ⅰ名詞1 (從地面往下鑿成的能取水的深洞) well 2 (形狀像井的東西) sth in the shape of a well 3 (...
- 改良 : 1 (去掉事物的個別缺點 使它更適合要求) improve; ameliorate 2 (改進) reform; 改良牧場 improved ...
- 水井 : well
-
In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively
本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討,取得以下主要成果:一、結合小灣工程導流洞改建,對高水頭( 252m ) 、大泄流量( 1400m ~ 3 s )條件下旋流式豎井中的水流運動特徵進行了比較全面的測量,包括空腔形態、徑向流速分佈及井壁壓強等;二、提出了豎井空腔段螺旋水流水力計算方法,其計算結果與實測值吻合良好;三、利用試驗與計算結果,對旋流式豎井的消能機理進行了探討,對豎井各部分的消能能力有了總體認識;四、對豎井下部消力井的合理井深進行了優化試驗研究,發現消力井合理深度為0 . 9d左右;五、通過試驗研究,歸納出豎井水流總摻氣量估算方法,為導流洞排氣方案的設計提供了參考依據;六、在高水頭、大流量條件下,豎井空腔段下部流速很高,盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓,但空化數依然較低,因此豎井的空化空蝕始終是工程界關注的重大問題。Through the comprehensive assessment for the constructional design of offshore drilling and workover machines used in wenchang oilfield group, it is proved that the design possesses the following advantages of high modularization and standardization, excellent matching with platform deck assembly blocks, rational material utilization ratio, reducing self weight, implementing pre - engineering of design, and taking account of the updating demands for later stage
通過綜合評價,文昌油田群海洋鉆修井機的結構設計具有以下優點:模塊化、標準化設計水平高,與平臺甲板組塊的匹配性良好,合理控制了材料的利用率,減輕了自重,實現了設計的預工程化,兼顧了後期改造升級的需要。High spicific surface, tiny granule diameter, goodactivity, can be used as substitute of well cement or silica flour to imporve well quality
比表面積大,粒徑微小,具有良好的膠凝性能,可替代井油水泥和/或硅灰(漂珠) ,改善固井質量。
分享友人