Plunger lift is an intermittent gas-lift method which using the plunger or piston as a solid interface between the expanding gas and the liquid slug helps prevent gas breaking through the slug and decreases liquid fallback.
為了有效的對(duì)柱塞舉升系統(tǒng)進(jìn)行設(shè)計(jì)和操作管理,需要正確預(yù)測(cè)分析把握柱塞在上下行程中的動(dòng)態(tài)和油套壓等參數(shù)的變化情況,本文通過(guò)對(duì)柱塞舉升單個(gè)周期內(nèi)的舉升階段、續(xù)流階段和關(guān)井壓力恢復(fù)階段進(jìn)行了動(dòng)態(tài)模擬,所做的主要工作如下: (1) 考慮了摩阻損失和液體漏失(回落)損失的影響,建立了柱塞舉升和間歇舉升井的舉升效率模型,并利用實(shí)例進(jìn)行了對(duì)比分析; (2) 在假設(shè)柱塞與油管間流體沿環(huán)空直線運(yùn)動(dòng)和做軸對(duì)稱(chēng)運(yùn)動(dòng)基礎(chǔ)上,利用連續(xù)性方程和Navier-Stokes方程建立了柱塞上行程的液體漏失數(shù)學(xué)模型; (3) 將柱塞舉升的單個(gè)。
Passengers can not bring liquids in carry-on bags.
乘客不能在旅行包中攜帶液態(tài)物品。
The ban on liquids and gels in your carry-on bag is no longer.
不再禁止包攜帶易燃液體和膠體。
Cooling will reduce the capacity of a liquid for carrying material in solution.
冷卻會(huì)降低液體攜帶溶液中的物質(zhì)的能力。
The parasites that cause malaria enter people's blood when they are bitten by the mosquitoes that carry the organisms.
當(dāng)被攜帶病菌的蚊子叮咬時(shí)，寄生蟲(chóng)進(jìn)入人體的血液中。
The liquid moves up the sheet by capillary action. It carries the components of the mixture sample up along with it.
通過(guò)毛細(xì)管作用，液體攜帶著試樣混合物的成分沿著濾紙向上移動(dòng)。
Such liquid fuel rockets as are now being used for space research have to carry their own apply of oxygen.
象現(xiàn)在用于宇宙研究的這類(lèi)液態(tài)燃料火箭，必須自己攜帶氧氣。
Cause Analysis of Gypsum Slurry Carry-over by Flue Gas of 630MW Supercritical Power Units
630MW超臨界機(jī)組煙氣攜帶脫硫石膏漿液的原因分析
Research on hepatitis B virus markers in breast milk and saliva of hepatitis B virus carried mothers
乙肝病毒攜帶產(chǎn)婦乳汁、唾液乙肝病毒標(biāo)志物檢測(cè)結(jié)果分析
The role of hand Disinfection-Solution on hand Disinfection in an Intensive Care Unit
免洗消毒液對(duì)ICU醫(yī)護(hù)人員手上攜帶細(xì)菌的消除作用
portable explosion-proof digital level gauge
便攜式防爆數(shù)字液位儀
a two-wheeled vehicle carrying artillery ammunition.
攜帶彈藥的雙輪工具。
portable ultrasonic thickness meter
攜帶式超聲波測(cè)厚儀
a small portable timepiece.
一種小的易攜帶的表。
the baggage and equipment carried by an army.
軍隊(duì)攜帶的行李盒設(shè)備。
We brought tea in a thermos flask.
我們用保溫瓶攜帶茶水。
You may carry your luggage on broad without charge.
您可免費(fèi)攜帶行李上船。
Can I carry this one on to the plane with me?
我可以隨身攜帶這個(gè)嗎？?
sth. taken with one and eaten at will
隨身攜帶，隨手可吃