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- Drilling fluid circulating temperature plays a very important role in predicting the equivalent circulating density of drilling fluids and in determining safe density windows. 钻井液循环温度是预测钻井液循环当量密度、确定钻井安全密度窗口的重要影响因素之一。
- The overseas field application shows that oil base muds with densities greater than 1.6 g/cm3 have lower equivalent circulation density(ECD) if manganese tetraoxide is used as the weighting agent,instead of barite. 国外现场应用表明;对于密度在1.;6 g/cm3以上的加重油基钻井液;用四氧化锰代替重晶石粉加重;能降低钻井液的当量循环密度。
- equivalent circulation density 循环当量密度
- Keywords drilling fluid additives;manganese tetraoxide;weighting materials;drilling fluids;equivalent circulation densities; 钻井液添加剂;四氧化锰;加重材料;钻井液;当量循环密度;
- He gave away his books to a circulating library. 他把自己的书籍损赠给一家循环图书馆。
- A dime is equivalent to ten pennies. 一角等于十分。
- Rumours are circulating in Whitehall. 怀特霍尔街上流传著谣言。
- The dividend pay is equivalent to one quarter of the pretax profit. 所付股息相当于税前利润的四分之一。
- A dime is the equivalent of two nickels. 一角硬币等于两个五分镍币。
- A meter is equivalent to 39.37 inches. 一米相当於三十九点三七英寸。
- His reply is equivalent to a refusal. 他的回答等於是拒绝。
- A note equivalent to two whole notes. 二全音符相当于两个全音符的一个音符
- The density of population in this city is very high. 这个城市的人口密度非常高。
- Serious lack of circulating fund forced the closure of the company. 公司因严重缺乏流动资金而被迫关闭。
- What is 5 equivalent to in French francs? 5英镑相当於多少法国法郎?
- He changed his pounds for the equivalent amount in dollars. 他把英镑兑换成等值的美元。
- The area had a population density of five people per square mile. 该地区人口密度为每平方英里五人。
- The circulating mud can give off heat. 循环着的泥浆能散出热量。
- Changing his job like that is equivalent to giving him the sack. 那样调换他的工作等于是解雇了他。
- He was accused of circulating forged banknotes. 他被人指控使用伪钞。
