borehole geometry

基本解释

The former is caused by relative motion between fluid phase and solid phase while the latter is caused by geometry characteristic of the borehole.
讨论了二者的传播衰减机制的区别，前者的耗散由黏性流体与固相间相对运动造成，后者的耗散则是由于井孔几何特征而形成的能量径向泄漏。
By describing the curved borehole and using differential geometry theory, the geometric deformation relations of coiled tubing in the curved borehole were established.
通过对弯曲井眼的几何描述，利用微分几何理论，建立了连续管在弯曲井眼中的变形几何关系；
lib.swpu.edu.cn
The paper quantitatively stated and researched the coal borehole fissure structure with the sharp geometry theory. The paper derived the expression of the coal borehole fissure sharp dimension.
利用分形几何学理论对煤孔隙结构进行了定量的描述和研究，推导了煤孔隙分形维数的表达式；