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- It can be found that the diameter of driller is the most important influent factor for hole enlargement. 然后再探讨不同的钻头直径下其他钻削条件对扩孔量的影响。
- Higher core recovery is assisted in coring operations when this kind of bit is used for hole enlargement. 加深井钻进，用双心钻头可增大环空间隙，提高固井质量。
- In order to solve this problem, micro - step hole enlargement technology is proposed to change narrow clearance cementing to wide clea... 为解决该问题,提出使用微台阶扩孔技术将侧钻小井眼窄间隙固井转化为宽间隙常规固井,同时加大水泥环厚度,提高固井质量,延长侧钻井寿命。
- Based on the analysis of the construction technology of secant piles in alluvium, the phenomenon of hole enlargement is studied. 摘要通过分析冲淤沉积层的特点和套管咬合桩的施工工艺，对套管咬合桩在冲淤沉积层中的扩径现象进行研究。
- Based on the theory of elasticity and molar-Coulomb strength failure criterion, we proposed the prediction method for hole enlargement ratio in the condition of underbalanced drilling. 摘要基于弹性力学理论及岩石摩尔-库仑强度破坏准则，提出了欠平衡钻井条件下井径扩大率的预测方法。
- Based on the theory of elasticity and molar-Coulomb strength failure criterion,we proposed the prediction method for hole enlargement ratio in the condition of underbalanced drilling. 基于弹性力学理论及岩石摩尔-库仑强度破坏准则,提出了欠平衡钻井条件下井径扩大率的预测方法。
- 17 No allowance for volume of hole enlargement. 不包括井眼扩大的泥浆体积。
- 17 No allowance for volume of hole enlargement. 不包括井眼扩大的泥浆体积。
- Developing small size whipstock so as to reduce the hole enlarging cost.Carrying on reliability desi... 减小转向器对钢质柔性钻杆的阻力,以增大径向水平进尺;
- His strength in a crisis is an ace in the hole. 临危不惧是他的看家本领。
- He chiseled a hole in the door to fit a new lock. 他在门上凿了个孔，以便装一把新锁。
- The bird picked a hole in the ice with its beak. 那鸟在冰上啄出了一个洞。
- The child has picked a hole in his new jumper. 孩子的新毛衣上勾了一个洞。
- Stick your hand in and see what's in the hole. 把手伸进去，看看洞里有什么。
- The dog skins through the small hole in the wall. 那条狗勉强钻过小小的墙洞。
- The enlargement brings out the details in the photograph. 照片放大后细微之处都很清楚。
- The men in the hole sent up for more equipment. 在洞穴中的人们向上面要求再给他们一些设备。
- The mice have nibbled a hole in the cheese. 老鼠在奶酪上啃出了一个洞。
- Abnormal enlargement of the breasts in a male. 男子女性型乳房男性胸部的异常增大
- I saw a rabbit dive into its hole. 我看见一只兔子钻进洞。
