重壁井 的英文怎麼說
中文拼音 [zhòngbìjǐng]
重壁井
英文
double-walled 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。This paper puts emphasis on image processing which makes use of histogram equalization method for image enhancement, which making engineer effectively analyze and making certain flaw, abrasion, bend of wall of a well
文中著重介紹了圖像處理部分，使用直方圖均衡化等方法對井下圖像進行圖像增強處理，使工程人員能夠更有效的分析和確定井壁裂紋、磨損、彎曲等狀況。In order to ensure the safety of engineering, it should be careful to use the test result of normal drilling sampling, the pitting sampling, shaft sampling, or double - tubles and thin - wall soil collecting methods should be used
為保證工程安全，對常規鉆孔取樣試驗成果的使用應當慎重，對重要工程宜採用探坑、豎井取樣，或採用雙筒薄壁取土技術。Based on studying the tick - lock mechanism, the co - operating transmit path is analyzed deeply by analyzing the influence made by region factors, region advantage to the choice of fdi region international product style. the international product styles have been divided in this thesis. the factors including technologies factors, resource factors, industries policy and foreign capital centering degree of the industries and its " input barriers pointed influence the trades choice of the foreign capital importantly
分析了區位因於、區位優勢、國際生產類型對外資區位選擇的影晌，指出顯著因子、障礙因子、區位優勢的層次性對國際生產資本地域運動的具體影響，井劃分了國際生產類型；分析了企業選擇與產業選擇的區別，指出技術因素、資源因素、產業政策和外資政策、目標行業的市場集中度及進入壁壘等對外資的產業選擇具有重要影響，並只體研究了國際直接投資的部門分佈；構建了外資進入方式選擇的分析框架，從不同層面重點研究了影響跨國並購與綠地投資的因素。The wall caving is severe
井壁垮塌嚴重Abstract : anchor packer is one of the important downhole tools which areused in oil production and waterflood technical operation, such as layer waterflood, layer fracture or acidation, mechanical water block. after anchor is fixed in the simulated test unit, the invasion depth of the casing can be known with the help of the sensor around the casing wall, and then the failure degree is concluded. this is very important for the anchor packer design and site operation
文摘:在油田開發中封隔器是實施機械採油、分層注水、分層壓裂或酸化、機械卡堵水等注采工藝作業的主要井下工具之一，封隔器上的卡瓦是保證工作可靠性的重要元件，把卡瓦安裝在模擬試驗裝置中，通過在套管壁周圍分佈位移傳感器，測得卡瓦錨定后切入套管壁深度，判斷卡瓦對套管的損傷程度，這對封隔器的設計和現場使用具有十分重要的意義。分享友人