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- D index is also called formation drillability index (dimensionless). 指數也稱地層可鑽性指數(無量鋼)。
- This method was applied to predict the formation drillability of Fugu 1 Well in Changqing Oilfield. 應用該方法對長慶油田富古1井的地層可鑽性進行了預測。
- Formation drillability is related to formation compact degree and pore fracture degree,so NDR can reflect formation pore pressure state. 地層可鑽性與地層的壓實程度和孔隙破裂程度有關,因此NDR可以反映地層孔隙壓力的情況。
- The bending moment can be related to the formation drillability, BHA configuration and drill bit size, and is proportional to the applied WOB. 鑽頭彎矩與交錯層的可鑽性、下部鑽具的結構和鑽頭的幾何尺寸有關,並且與所加的鑽壓成正比。
- A finite element method was proposed to plot the formation drillability plane and a four node rectangular was used as an example to illustrate the computation procedure. 針對該問題,提出了一種基於有限單元法理論繪製區域可鑽性剖面的計算方法,並以平面四節點矩形單元為例,給出了具體的計算過程。
- The traditional method using surface fitting or interpolation to plot formation drillability plane is complex,and the accuracy cannot be guaranteed if some parameters cannot be selected properly. 採用常規曲面擬合或插值方法繪製區域地層可鑽性剖面的過程相當複雜,且若多項式選擇不當,計算精度往往得不到保證,很難滿足實際需要。
- At present all kinds of formation drillability evaluating methods belong to after drilling analysis that is, these methods can be used only for calculating the drillability of the drilled stratum. 目前地層可鑽性的各種評測方法均屬鑽後分析方法,即只能對已鑽地層的可鑽性進行計算。
- formation drillability parameter 地層可鑽性參數
- The classification of the drillability of formations drilled in Henan Oil Field is discussed.The correlation between the formation drillability grade and bit type has been basically established. 文章討論了河南油田地層可鑽性定級方法及結果;按資料建立了級別-類型關係;提取了地層可鑽性梯度信息。
- An Experimental Study on the Prediction of Formation Drillability and Rate of Penetration by Sonic Log Data 利用聲波測井資料預測地層可鑽性及鑽速的試驗研究
- The book has been styled in a modern format. 該書已按照現代版式製作。
- Keywords formation drillability;stratigraphic section;formation parameter;finite element method; 地層可鑽性;地層剖面;地層函數;有限元法;
- Keywords air drilling;borehole deviation;BHA;formation drillability;Qingxi Oilfield; 青西油田;空氣鑽井;井斜;鑽具組合;空氣錘;地層可鑽性;
- Keywords formation characteristic parameters;pore pressure;support vector machines;lithologic identification;formation drillability; 地層特徵參數;地層壓力;支撐向量機;岩性識別;可鑽性;
- Her front teeth were irregular in formation. 她的門牙排列不整齊。
- They marched in parade formation. 他們以列隊的陣式行進。
- The book is written in an episodic format. 這本書是以一種鬆散的形式寫成的。
- It's the same book, but a new format. 還是那本書,但這是新的版式。
- The formation of two ordered files from one regular file. 把一個正規文件分成兩個有序文件的過程。
- The natural process of bone formation. 成骨骨頭形成的自然過程