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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. 鑽井液循環溫度是預測鑽井液循環當量密度、確定鑽井安全密度窗口的重要影響因素之一。
- 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. 國外現場應用表明;對於密度在1.;6 g/cm3以上的加重油基鑽井液;用四氧化錳代替重晶石粉加重;能降低鑽井液的當量循環密度。
- equivalent circulation density 循環當量密度
- Keywords drilling fluid additives;manganese tetraoxide;weighting materials;drilling fluids;equivalent circulation densities; 鑽井液添加劑;四氧化錳;加重材料;鑽井液;當量循環密度;
- He gave away his books to a circulating library. 他把自己的書籍損贈給一家循環圖書館。
- A dime is equivalent to ten pennies. 一角等於十分。
- Rumours are circulating in Whitehall. 懷特霍爾街上流傳著謠言。
- The dividend pay is equivalent to one quarter of the pretax profit. 所付股息相當於稅前利潤的四分之一。
- A dime is the equivalent of two nickels. 一角硬幣等於兩個五分鎳幣。
- A meter is equivalent to 39.37 inches. 一米相當於三十九點三七英寸。
- His reply is equivalent to a refusal. 他的回答等於是拒絕。
- A note equivalent to two whole notes. 二全音符相當於兩個全音符的一個音符
- The density of population in this city is very high. 這個城市的人口密度非常高。
- Serious lack of circulating fund forced the closure of the company. 公司因嚴重缺乏流動資金而被迫關閉。
- What is 5 equivalent to in French francs? 5英鎊相當於多少法國法郎?
- He changed his pounds for the equivalent amount in dollars. 他把英鎊兌換成等值的美元。
- The area had a population density of five people per square mile. 該地區人口密度為每平方英里五人。
- The circulating mud can give off heat. 循環著的泥漿能散出熱量。
- Changing his job like that is equivalent to giving him the sack. 那樣調換他的工作等於是解僱了他。
- He was accused of circulating forged banknotes. 他被人指控使用偽鈔。
