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- D index is also called formation drillability index (dimensionless). 指数也称地层可钻性指数(无量钢)。
- This method was applied to predict the formation drillability of Fugu 1 Well in Changqing Oilfield. 应用该方法对长庆油田富古1井的地层可钻性进行了预测。
- Formation drillability is related to formation compact degree and pore fracture degree,so NDR can reflect formation pore pressure state. 地层可钻性与地层的压实程度和孔隙破裂程度有关,因此NDR可以反映地层孔隙压力的情况。
- The bending moment can be related to the formation drillability, BHA configuration and drill bit size, and is proportional to the applied WOB. 钻头弯矩与交错层的可钻性、下部钻具的结构和钻头的几何尺寸有关,并且与所加的钻压成正比。
- 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. 针对该问题,提出了一种基于有限单元法理论绘制区域可钻性剖面的计算方法,并以平面四节点矩形单元为例,给出了具体的计算过程。
- 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. 采用常规曲面拟合或插值方法绘制区域地层可钻性剖面的过程相当复杂,且若多项式选择不当,计算精度往往得不到保证,很难满足实际需要。
- 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. 目前地层可钻性的各种评测方法均属钻后分析方法,即只能对已钻地层的可钻性进行计算。
- formation drillability parameter 地层可钻性参数
- 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. 文章讨论了河南油田地层可钻性定级方法及结果;按资料建立了级别-类型关系;提取了地层可钻性梯度信息。
- An Experimental Study on the Prediction of Formation Drillability and Rate of Penetration by Sonic Log Data 利用声波测井资料预测地层可钻性及钻速的试验研究
- The book has been styled in a modern format. 该书已按照现代版式制作。
- Keywords formation drillability;stratigraphic section;formation parameter;finite element method; 地层可钻性;地层剖面;地层函数;有限元法;
- Keywords air drilling;borehole deviation;BHA;formation drillability;Qingxi Oilfield; 青西油田;空气钻井;井斜;钻具组合;空气锤;地层可钻性;
- Keywords formation characteristic parameters;pore pressure;support vector machines;lithologic identification;formation drillability; 地层特征参数;地层压力;支撑向量机;岩性识别;可钻性;
- Her front teeth were irregular in formation. 她的门牙排列不整齐。
- They marched in parade formation. 他们以列队的阵式行进。
- The book is written in an episodic format. 这本书是以一种松散的形式写成的。
- It's the same book, but a new format. 还是那本书,但这是新的版式。
- The formation of two ordered files from one regular file. 把一个正规文件分成两个有序文件的过程。
- The natural process of bone formation. 成骨骨头形成的自然过程