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- Minimum curvature method is always used in directional well path design,horizontal well path design and clinometers calculation. 最小曲率法是定向井、水平井轨道设计、测斜计算中经常使用的一种方法。
- If the section is a circular arc in the spatial slanting plane,the circular arc is the extremely reasonable bore hole path curve for slide drilling in minimum curvature method. 最小曲率法是定向井、水平井轨道设计、测斜计算中经常使用的一种方法。
- Natural Parameter Method is a kind of new method of wellbore trajectory computation succeeding Cylinder Helix Method(Radius of Curvature Method) and Minimum Curvature Method. 自然参数法是继圆柱螺线法和最小曲率法之后提出的一种测斜计算新方法,在井眼轨迹设计与计算中有着广泛的用途。
- Minimum Curvature Method 最小曲率法
- The minimum curvature radius method is used to compute hole trajectory data (such as ZD,XE,YN,HOFF,HOAZ, etc. ) to draw the highly deviated well hole trajectory graph. 用最小曲率半径法计算井眼轨迹数据(如ZD、XE、YN、HOFF、HOAZ),绘制出大斜度井的井眼轨迹图。
- The way and principle of Gaussian curvature method for forecasting natural fracture zones in coal seam are discussed. 摘要论述了高斯曲率法预测煤层天然裂隙发育区的基本原理和方法。
- The mathematical expressions for these three curves are given, and their minimum curvature radii, maximum velocities and accelerations, and maximum minimum pressure angles are compared. 得出的结论是,三种曲线中,余弦曲线的最小曲率半径值最大,最大速度与最大加速度值最小,这符合曲线性能的最好条件。
- The multi-stage axial compressor performance was measured using a streamline curvature method based on two-dimension (axisymmetric) mathematical model. 摘要采用二维(轴对称)数学模型,应用流线曲率法求解多级轴流压气机特性。
- It is believed that this method is dimpler than the curvature method, not influeaced by interfering ions, and can be applied to other industries. 认为该法比曲线法更简单,不受干扰离子的影响,可在各行业中推广应用。
- The time marching throughflow design requires less experience data, and can get a more detailed flow field than the traditional streamline curvature method. 时间推进通 流气动设计方法与叶片任意造型和三维粘性流场分析共同组成了时间 推进通流气动设计体系的基本框架。
- Minimum curvature for normal crown section 不设超高的最小平曲线半径
- By research of cause of mechanism and influence factor of fissure, this paper carries out the forecast of fissure using curvature method and synthesis discriminance. 分析研究本区裂缝的成因机制和影响因素的基础上,应用曲率法和综合判别法对本区深层各层位在不同时期的裂缝发育状况进行了预测;
- It is concluded that the Gaussian curvature method can reflect the shape variation of coal seam curvature, and the method is effective to forecast natural fracture zones in coal seam. 分析表明,高斯曲率法可相对真实地反映煤层曲面形态变化,用该方法预测煤层天然裂隙发育区是切实可行的。
- The difference and relationship between the deflecting force of bit and limiting curvature,build_up rate,etc in concept is discussed in this paper through limiting curvature method. 通过极限曲率法论述了钻头侧向力与极限曲率、造斜率等概念间的联系和区别。
- The principal curvature method and Gauss curvature method are two mathematic methods for appraising and predicating distribution of reservoir fractures. 最小曲率法是定向井、水平井轨道设计、测斜计算中经常使用的一种方法。
- The method seems good but it needs to be tried out. 这个方法似乎不错,但需要试验一下。
- We have pared down our expenses to a bare minimum. 我们已最大限度地削减了开支。
- The class needs a minimum of 6 pupils to continue. 这个班最低限度要六个学生才可以继续办下去。
- A withdrawal limit of $200; no minimum age limit. 提款数量最多不超过200美元; 没有最低年龄限制。
- This game requires a minimum of three players. 这个游戏至少需要三个人才可以玩。